preparing release 1.21.0

Resolve pnpm audit results
- bump vitest - override undici
2026-03-14 16:42:44 -04:00 · 2026-03-14 16:36:59 -04:00 · 2026-03-14 16:27:03 -04:00 · 2026-03-14 16:13:52 -04:00 · 2026-03-11 08:37:45 -04:00 · 2026-03-04 22:51:50 -05:00
47 changed files with 45057 additions and 41467 deletions
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -11,22 +11,27 @@ jobs:
  check_pr:
    runs-on: ubuntu-latest
    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
        
-      - uses: actions/setup-node@v4
+      - uses: pnpm/action-setup@v4
+        with:
+          version: latest
+
+      - uses: actions/setup-node@v6
        with:
          node-version: 20
+          cache: 'pnpm'

-      - name: "yarn install"
-        run: yarn install
+      - name: "pnpm install"
+        run: pnpm install
      
-      - name: "yarn build"
-        run: yarn build
+      - name: "pnpm build"
+        run: pnpm build

      - name: "check for uncommitted changes"
        # Ensure no changes, but ignore node_modules dir since dev/fresh ci deps installed.
        run: |
          git diff --exit-code --stat -- . ':!node_modules' \
-          || (echo "##[error] found changed files after build. please 'yarn build && npm run format'" \
+          || (echo "##[error] found changed files after build. please 'pnpm build && pnpm run format'" \
                   "and check in all changes" \
              && exit 1)
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -12,7 +12,7 @@ jobs:
    name: Create Release

    steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
      - name: Create Release
        id: create_release
        uses: ncipollo/release-action@v1
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -5,14 +5,19 @@ jobs:
  check_pr:
    runs-on: ubuntu-latest
    steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
      
-    - uses: actions/setup-node@v4
+    - uses: pnpm/action-setup@v4
+      with:
+        version: latest
+
+    - uses: actions/setup-node@v6
      with:
        node-version: 20
+        cache: 'pnpm'

-    - name: "yarn install"
-      run: yarn install
+    - name: "pnpm install"
+      run: pnpm install

-    - name: "yarn test"
-      run: yarn test
+    - name: "pnpm test"
+      run: pnpm test
--- a/.gitignore
+++ b/.gitignore
@@ -92,7 +92,7 @@ fabric.properties
 # Markdown Navigator plugin
 .idea/**/markdown-navigator.xml
 .idea/**/markdown-navigator/
-
+.idea/copilot.*
 # End of https://www.gitignore.io/api/webstorm

 # Coverage
@@ -100,3 +100,6 @@ coverage

 # Ignore lib, it contains intermediates
 /lib
+
+# Claude
+.claude/settings.local.json
--- a/README.md
+++ b/README.md
@@ -25,6 +25,8 @@ This action will create a GitHub release and optionally upload an artifact to it
 | discussionCategory         | When provided this will generate a discussion of the specified category. The category must exist otherwise this will cause the action to fail. This isn't used with draft releases. The default "Announcements" category is not supported via the API and will cause an error if used here. | false      | ""                   |
 | draft                      | Optionally marks this release as a draft release. Set to true to enable.                                                                                                                                                                                                                    | false      | ""                   |
 | generateReleaseNotes       | Indicates if release notes should be automatically generated.                                                                                                                                                                                                                               | false      | false                |
+| generateReleaseNotesPreviousTag | An optional previous tag to use when generating release notes. This will limit the release notes to changes between the two tags.                                                                                                                                                       | false      | ""                   |
+| immutableCreate            | Indicates if immutable release creation should be used. When enabled, the action will first create a draft, upload artifacts, then publish the release.                                                                                                                                     | false      | false                |
 | makeLatest                 | Indicates if the release should be the "latest" release or not. legacy specifies that the latest release should be determined based on the release creation date and higher semantic version.                                                                                               | false      | "legacy"             |
 | name                       | An optional name for the release. If this is omitted the tag will be used.                                                                                                                                                                                                                  | false      | ""                   |
 | omitBody                   | Indicates if the release body should be omitted.                                                                                                                                                                                                                                            | false      | false                |
--- a/README.zh-Hans.md
+++ b/README.zh-Hans.md
@@ -26,6 +26,7 @@
 | discussionCategory         | 当提供该选项时，将生成指定类别的 discussion。指定的类别必须存在，否则将导致 Action 失败。这对草案状态的发布不生效。API 不支持默认的 Announcement 分类，使用这个分类会引发错误。     | false | ""                   |
 | draft                      | 可选择将此版本标记为草稿版本。 设置为 true 以启用。                                                                                                                        | false | ""                   |
 | generateReleaseNotes       | 指示是否应自动生成发行说明。                                                                                                                                               | false | false                |
+| immutableCreate            | 指示是否应使用不可变发布创建。启用时，操作将首先创建草稿，上传产出文件，然后发布版本。                                                                                                          | false | false                |
 | makeLatest                 | 指示是否将这个发布设置为 latest。使用"lagecy"值则会根据发布时间和语义化版本号自动决定。                                                                                     | false | "legacy"               |
 | name                       | 版本的可选名称。 如果省略，将使用标签。                                                                                                                                    | false | ""                   |
 | omitBody                   | 指示是否应省略发布主体。                                                                                                                                                   | false | false                |
--- a/mocks/@actions/core.ts
+++ b/mocks/@actions/core.ts
@@ -0,0 +1,9 @@
+import { vi } from "vitest"
+
+export const debug = vi.fn()
+export const getBooleanInput = vi.fn()
+export const getInput = vi.fn()
+export const notice = vi.fn()
+export const setFailed = vi.fn()
+export const setOutput = vi.fn()
+export const warning = vi.fn()
--- a/mocks/fs.ts
+++ b/mocks/fs.ts
@@ -0,0 +1,8 @@
+import { vi } from "vitest"
+
+export const createReadStream = vi.fn()
+export const statSync = vi.fn()
+export const readFileSync = vi.fn()
+export const writeFileSync = vi.fn()
+export const existsSync = vi.fn()
+export const realpathSync = vi.fn()
--- a/tests/Action.test.ts
+++ b/tests/Action.test.ts
@@ -1,11 +1,12 @@
-import { Action } from "../src/Action"
-import type { ActionSkipper } from "../src/ActionSkipper"
-import { Artifact } from "../src/Artifact"
-import type { ArtifactDestroyer } from "../src/ArtifactDestroyer"
-import type { ArtifactUploader } from "../src/ArtifactUploader"
-import type { Inputs } from "../src/Inputs"
-import type { Outputs } from "../src/Outputs"
-import type { Releases } from "../src/Releases"
+import { beforeEach, describe, expect, it, vi } from "vitest"
+import { Action } from "../src/Action.js"
+import type { ActionSkipper } from "../src/ActionSkipper.js"
+import { Artifact } from "../src/Artifact.js"
+import type { ArtifactDestroyer } from "../src/ArtifactDestroyer.js"
+import type { ArtifactUploader } from "../src/ArtifactUploader.js"
+import type { Inputs } from "../src/Inputs.js"
+import type { Outputs } from "../src/Outputs.js"
+import type { Releases } from "../src/Releases.js"

 const TEST_URLS = {
    UPLOAD_URL: "http://api.example.com",
@@ -14,18 +15,18 @@ const TEST_URLS = {
    ZIPBALL_URL: "https://api.github.com/repos/owner/repo/zipball/v1.0.0",
 } as const

-const applyReleaseDataMock = jest.fn()
-const applyAssetUrlsMock = jest.fn()
-const artifactDestroyMock = jest.fn()
-const createMock = jest.fn()
-const deleteMock = jest.fn()
-const getMock = jest.fn()
-const listArtifactsMock = jest.fn()
-const listMock = jest.fn()
-const shouldSkipMock = jest.fn()
-const updateMock = jest.fn()
-const uploadMock = jest.fn()
-const genReleaseNotesMock = jest.fn()
+const applyReleaseDataMock = vi.fn()
+const applyAssetUrlsMock = vi.fn()
+const artifactDestroyMock = vi.fn()
+const createMock = vi.fn()
+const deleteMock = vi.fn()
+const getMock = vi.fn()
+const listArtifactsMock = vi.fn()
+const listMock = vi.fn()
+const shouldSkipMock = vi.fn()
+const updateMock = vi.fn()
+const uploadMock = vi.fn()
+const genReleaseNotesMock = vi.fn()

 const artifacts = [new Artifact("a/art1"), new Artifact("b/art2")]

@@ -34,7 +35,7 @@ const createDraft = true
 const createName = "createName"
 const commit = "commit"
 const discussionCategory = "discussionCategory"
-const generateReleaseNotes = true
+const _generateReleaseNotes = true
 const id = 100
 const createPrerelease = true
 const releaseId = 101
@@ -49,12 +50,15 @@ const updateOnlyUnreleased = false
 const url = TEST_URLS.UPLOAD_URL
 const makeLatest = "legacy"
 const generatedReleaseBody = "test release notes"
+const previousTag = "v1.0.0"

 describe("Action", () => {
    beforeEach(() => {
        applyReleaseDataMock.mockClear()
        applyAssetUrlsMock.mockClear()
+        artifactDestroyMock.mockClear()
        createMock.mockClear()
+        genReleaseNotesMock.mockClear()
        getMock.mockClear()
        listMock.mockClear()
        shouldSkipMock.mockClear()
@@ -62,18 +66,132 @@ describe("Action", () => {
        uploadMock.mockClear()
    })

-    it("creates release but does not upload if no artifact", async () => {
-        const action = createAction(false, false)
+    it("creates release with generated release notes when no body provided", async () => {
+        const action = createAction(false, false, false, true, false, "")

        await action.perform()

+        expect(genReleaseNotesMock).toHaveBeenCalledWith(tag, undefined, commit)
        expect(createMock).toHaveBeenCalledWith(
            tag,
-            createBody,
+            generatedReleaseBody,
+            commit,
+            discussionCategory,
+            createDraft,
+            makeLatest,
+            createName,
+            createPrerelease
+        )
+        expect(uploadMock).not.toHaveBeenCalled()
+        assertOutputApplied()
+        assertAssetUrlsApplied({})
+    })
+
+    it("creates release with generated release notes that override existing body", async () => {
+        const action = createAction(false, false, false, true, false, "")
+
+        await action.perform()
+
+        expect(genReleaseNotesMock).toHaveBeenCalledWith(tag, undefined, commit)
+        expect(createMock).toHaveBeenCalledWith(
+            tag,
+            generatedReleaseBody,
+            commit,
+            discussionCategory,
+            createDraft,
+            makeLatest,
+            createName,
+            createPrerelease
+        )
+        expect(uploadMock).not.toHaveBeenCalled()
+        assertOutputApplied()
+        assertAssetUrlsApplied({})
+    })
+
+    it("creates release with static body when generateReleaseNotes is false", async () => {
+        const action = createAction(false, false, false, false, false, "static body")
+
+        await action.perform()
+
+        expect(genReleaseNotesMock).not.toHaveBeenCalled()
+        expect(createMock).toHaveBeenCalledWith(
+            tag,
+            "static body",
+            commit,
+            discussionCategory,
+            createDraft,
+            makeLatest,
+            createName,
+            createPrerelease
+        )
+        expect(uploadMock).not.toHaveBeenCalled()
+        assertOutputApplied()
+        assertAssetUrlsApplied({})
+    })
+
+    it("creates release with combined body and generated release notes", async () => {
+        const action = createAction(false, false, false, true, false, createBody)
+
+        await action.perform()
+
+        expect(genReleaseNotesMock).toHaveBeenCalledWith(tag, undefined, commit)
+        expect(createMock).toHaveBeenCalledWith(
+            tag,
+            `${createBody}\n${generatedReleaseBody}`,
+            commit,
+            discussionCategory,
+            createDraft,
+            makeLatest,
+            createName,
+            createPrerelease
+        )
+        expect(uploadMock).not.toHaveBeenCalled()
+        assertOutputApplied()
+        assertAssetUrlsApplied({})
+    })
+
+    it("creates release with combined body and generated release notes using previous tag", async () => {
+        const action = createAction(
+            false,
+            false,
+            false,
+            true,
+            false,
+            createBody,
+            true,
+            createDraft,
+            updateBody,
+            previousTag
+        )
+
+        await action.perform()
+
+        expect(genReleaseNotesMock).toHaveBeenCalledWith(tag, previousTag, commit)
+        expect(createMock).toHaveBeenCalledWith(
+            tag,
+            `${createBody}\n${generatedReleaseBody}`,
+            commit,
+            discussionCategory,
+            createDraft,
+            makeLatest,
+            createName,
+            createPrerelease
+        )
+        expect(uploadMock).not.toHaveBeenCalled()
+    })
+
+    it("creates release but does not upload if no artifact", async () => {
+        const action = createAction(false, false, false, true, false, "")
+
+        await action.perform()
+
+        expect(genReleaseNotesMock).toHaveBeenCalledWith(tag, undefined, commit)
+        expect(createMock).toHaveBeenCalledWith(
+            tag,
+            generatedReleaseBody,
            commit,
            discussionCategory,
            createDraft,
-            generateReleaseNotes,
            makeLatest,
            createName,
            createPrerelease
@@ -84,19 +202,19 @@ describe("Action", () => {
    })

    it("creates release if no release exists to update", async () => {
-        const action = createAction(true, true)
+        const action = createAction(true, true, false, true, false, "")
        const error = { status: 404 }
        getMock.mockRejectedValue(error)

        await action.perform()

+        expect(genReleaseNotesMock).toHaveBeenCalledWith(tag, undefined, commit)
        expect(createMock).toHaveBeenCalledWith(
            tag,
-            createBody,
+            generatedReleaseBody,
            commit,
            discussionCategory,
            createDraft,
-            generateReleaseNotes,
            makeLatest,
            createName,
            createPrerelease
@@ -104,13 +222,13 @@ describe("Action", () => {
        expect(uploadMock).toHaveBeenCalledWith(artifacts, releaseId, url)
        assertOutputApplied()
        assertAssetUrlsApplied({
-            "art1": "https://github.com/owner/repo/releases/download/v1.0.0/art1",
-            "art2": "https://github.com/owner/repo/releases/download/v1.0.0/art2",
+            art1: "https://github.com/owner/repo/releases/download/v1.0.0/art1",
+            art2: "https://github.com/owner/repo/releases/download/v1.0.0/art2",
        })
    })

    it("creates release if no draft releases", async () => {
-        const action = createAction(true, true)
+        const action = createAction(true, true, false, true, false, "")
        const error = { status: 404 }
        getMock.mockRejectedValue(error)
        listMock.mockResolvedValue({
@@ -119,13 +237,13 @@ describe("Action", () => {

        await action.perform()

+        expect(genReleaseNotesMock).toHaveBeenCalledWith(tag, undefined, commit)
        expect(createMock).toHaveBeenCalledWith(
            tag,
-            createBody,
+            generatedReleaseBody,
            commit,
            discussionCategory,
            createDraft,
-            generateReleaseNotes,
            makeLatest,
            createName,
            createPrerelease
@@ -133,23 +251,23 @@ describe("Action", () => {
        expect(uploadMock).toHaveBeenCalledWith(artifacts, releaseId, url)
        assertOutputApplied()
        assertAssetUrlsApplied({
-            "art1": "https://github.com/owner/repo/releases/download/v1.0.0/art1",
-            "art2": "https://github.com/owner/repo/releases/download/v1.0.0/art2",
+            art1: "https://github.com/owner/repo/releases/download/v1.0.0/art1",
+            art2: "https://github.com/owner/repo/releases/download/v1.0.0/art2",
        })
    })

    it("creates release then uploads artifact", async () => {
-        const action = createAction(false, true)
+        const action = createAction(false, true, false, true, false, "")

        await action.perform()

+        expect(genReleaseNotesMock).toHaveBeenCalledWith(tag, undefined, commit)
        expect(createMock).toHaveBeenCalledWith(
            tag,
-            createBody,
+            generatedReleaseBody,
            commit,
            discussionCategory,
            createDraft,
-            generateReleaseNotes,
            makeLatest,
            createName,
            createPrerelease
@@ -157,8 +275,8 @@ describe("Action", () => {
        expect(uploadMock).toHaveBeenCalledWith(artifacts, releaseId, url)
        assertOutputApplied()
        assertAssetUrlsApplied({
-            "art1": "https://github.com/owner/repo/releases/download/v1.0.0/art1",
-            "art2": "https://github.com/owner/repo/releases/download/v1.0.0/art2",
+            art1: "https://github.com/owner/repo/releases/download/v1.0.0/art1",
+            art2: "https://github.com/owner/repo/releases/download/v1.0.0/art2",
        })
    })

@@ -170,8 +288,8 @@ describe("Action", () => {
        expect(artifactDestroyMock).toHaveBeenCalledWith(releaseId)
        assertOutputApplied()
        assertAssetUrlsApplied({
-            "art1": "https://github.com/owner/repo/releases/download/v1.0.0/art1",
-            "art2": "https://github.com/owner/repo/releases/download/v1.0.0/art2",
+            art1: "https://github.com/owner/repo/releases/download/v1.0.0/art1",
+            art2: "https://github.com/owner/repo/releases/download/v1.0.0/art2",
        })
    })

@@ -183,8 +301,8 @@ describe("Action", () => {
        expect(artifactDestroyMock).not.toHaveBeenCalled()
        assertOutputApplied()
        assertAssetUrlsApplied({
-            "art1": "https://github.com/owner/repo/releases/download/v1.0.0/art1",
-            "art2": "https://github.com/owner/repo/releases/download/v1.0.0/art2",
+            art1: "https://github.com/owner/repo/releases/download/v1.0.0/art1",
+            art2: "https://github.com/owner/repo/releases/download/v1.0.0/art2",
        })
    })

@@ -199,7 +317,7 @@ describe("Action", () => {
    })

    it("throws error when create fails", async () => {
-        const action = createAction(false, true)
+        const action = createAction(false, true, false, true, false, "")
        createMock.mockRejectedValue("error")

        expect.hasAssertions()
@@ -209,13 +327,13 @@ describe("Action", () => {
            expect(error).toEqual("error")
        }

+        expect(genReleaseNotesMock).toHaveBeenCalledWith(tag, undefined, commit)
        expect(createMock).toHaveBeenCalledWith(
            tag,
-            createBody,
+            generatedReleaseBody,
            commit,
            discussionCategory,
            createDraft,
-            generateReleaseNotes,
            makeLatest,
            createName,
            createPrerelease
@@ -273,7 +391,7 @@ describe("Action", () => {
    })

    it("throws error when update fails", async () => {
-        const action = createAction(true, true)
+        const action = createAction(true, true, false, true, false, "", true, createDraft, "")

        updateMock.mockRejectedValue("error")

@@ -299,7 +417,7 @@ describe("Action", () => {
    })

    it("throws error when upload fails", async () => {
-        const action = createAction(false, true)
+        const action = createAction(false, true, false, true, false, "")
        const expectedError = { status: 404 }
        uploadMock.mockRejectedValue(expectedError)

@@ -310,13 +428,13 @@ describe("Action", () => {
            expect(error).toEqual(expectedError)
        }

+        expect(genReleaseNotesMock).toHaveBeenCalledWith(tag, undefined, commit)
        expect(createMock).toHaveBeenCalledWith(
            tag,
-            createBody,
+            generatedReleaseBody,
            commit,
            discussionCategory,
            createDraft,
-            generateReleaseNotes,
            makeLatest,
            createName,
            createPrerelease
@@ -325,7 +443,7 @@ describe("Action", () => {
    })

    it("updates draft release", async () => {
-        const action = createAction(true, true)
+        const action = createAction(true, true, false, true, false, "", true, createDraft, "")
        const error = { status: 404 }
        getMock.mockRejectedValue(error)
        listMock.mockResolvedValue({
@@ -351,8 +469,8 @@ describe("Action", () => {
        expect(uploadMock).toHaveBeenCalledWith(artifacts, releaseId, url)
        assertOutputApplied()
        assertAssetUrlsApplied({
-            "art1": "https://github.com/owner/repo/releases/download/v1.0.0/art1",
-            "art2": "https://github.com/owner/repo/releases/download/v1.0.0/art2",
+            art1: "https://github.com/owner/repo/releases/download/v1.0.0/art1",
+            art2: "https://github.com/owner/repo/releases/download/v1.0.0/art2",
        })
    })

@@ -383,13 +501,58 @@ describe("Action", () => {
        expect(uploadMock).toHaveBeenCalledWith(artifacts, releaseId, url)
        assertOutputApplied()
        assertAssetUrlsApplied({
-            "art1": "https://github.com/owner/repo/releases/download/v1.0.0/art1",
-            "art2": "https://github.com/owner/repo/releases/download/v1.0.0/art2",
+            art1: "https://github.com/owner/repo/releases/download/v1.0.0/art1",
+            art2: "https://github.com/owner/repo/releases/download/v1.0.0/art2",
        })
    })

+    it("updates release with combined body and generated release notes", async () => {
+        const action = createAction(true, true, false, true, false, "", true, createDraft, updateBody)
+
+        await action.perform()
+
+        expect(genReleaseNotesMock).toHaveBeenCalledWith(tag, undefined, commit)
+        expect(updateMock).toHaveBeenCalledWith(
+            id,
+            tag,
+            `${updateBody}\n${generatedReleaseBody}`,
+            commit,
+            discussionCategory,
+            updateDraft,
+            makeLatest,
+            updateName,
+            updatePrerelease
+        )
+        expect(uploadMock).toHaveBeenCalledWith(artifacts, releaseId, url)
+        assertOutputApplied()
+        assertAssetUrlsApplied({
+            art1: "https://github.com/owner/repo/releases/download/v1.0.0/art1",
+            art2: "https://github.com/owner/repo/releases/download/v1.0.0/art2",
+        })
+    })
+
+    it("updates release with combined body and generated release notes using previous tag", async () => {
+        const action = createAction(true, true, false, true, false, "", true, createDraft, updateBody, previousTag)
+
+        await action.perform()
+
+        expect(genReleaseNotesMock).toHaveBeenCalledWith(tag, previousTag, commit)
+        expect(updateMock).toHaveBeenCalledWith(
+            id,
+            tag,
+            `${updateBody}\n${generatedReleaseBody}`,
+            commit,
+            discussionCategory,
+            updateDraft,
+            makeLatest,
+            updateName,
+            updatePrerelease
+        )
+        expect(uploadMock).toHaveBeenCalledWith(artifacts, releaseId, url)
+    })
+
    it("updates release but does not upload if no artifact", async () => {
-        const action = createAction(true, false)
+        const action = createAction(true, false, false, true, false, "", true, createDraft, "")

        await action.perform()

@@ -410,7 +573,7 @@ describe("Action", () => {
    })

    it("updates release then uploads artifact", async () => {
-        const action = createAction(true, true)
+        const action = createAction(true, true, false, true, false, "", true, createDraft, "")

        await action.perform()

@@ -428,8 +591,8 @@ describe("Action", () => {
        expect(uploadMock).toHaveBeenCalledWith(artifacts, releaseId, url)
        assertOutputApplied()
        assertAssetUrlsApplied({
-            "art1": "https://github.com/owner/repo/releases/download/v1.0.0/art1",
-            "art2": "https://github.com/owner/repo/releases/download/v1.0.0/art2",
+            art1: "https://github.com/owner/repo/releases/download/v1.0.0/art1",
+            art2: "https://github.com/owner/repo/releases/download/v1.0.0/art2",
        })
    })

@@ -460,8 +623,147 @@ describe("Action", () => {
        expect(uploadMock).toHaveBeenCalledWith(artifacts, releaseId, url)
        assertOutputApplied()
        assertAssetUrlsApplied({
-            "art1": "https://github.com/owner/repo/releases/download/v1.0.0/art1",
-            "art2": "https://github.com/owner/repo/releases/download/v1.0.0/art2",
+            art1: "https://github.com/owner/repo/releases/download/v1.0.0/art1",
+            art2: "https://github.com/owner/repo/releases/download/v1.0.0/art2",
+        })
+    })
+
+    it("does not publish immutable release when immutableCreate is false", async () => {
+        const action = createAction(false, true, false, true, false, "", false, false)
+
+        await action.perform()
+
+        expect(createMock).toHaveBeenCalledWith(
+            tag,
+            generatedReleaseBody,
+            commit,
+            discussionCategory,
+            false, // draft should be false when createdDraft is false
+            makeLatest,
+            createName,
+            createPrerelease
+        )
+        // Should only call update once for regular create, not for publishImmutableRelease
+        expect(updateMock).not.toHaveBeenCalled()
+        assertOutputApplied()
+    })
+
+    it("does not publish immutable release when createdDraft is true", async () => {
+        const action = createAction(false, true, false, true, false, "", true, true)
+
+        await action.perform()
+
+        expect(createMock).toHaveBeenCalledWith(
+            tag,
+            generatedReleaseBody,
+            commit,
+            discussionCategory,
+            true, // draft should be true when createdDraft is true or immutableCreate is true
+            makeLatest,
+            createName,
+            createPrerelease
+        )
+        // Should only call update once for regular create, not for publishImmutableRelease
+        expect(updateMock).not.toHaveBeenCalled()
+        assertOutputApplied()
+    })
+
+    it("publishes immutable release when immutableCreate is true and createdDraft is false", async () => {
+        const action = createAction(false, true, false, true, false, "", true, false)
+        const immutableReleaseResponse = {
+            data: {
+                id: 999,
+                upload_url: "http://immutable.example.com",
+                html_url: "https://github.com/owner/repo/releases/tag/v1.0.0-immutable",
+                tarball_url: "https://api.github.com/repos/owner/repo/tarball/v1.0.0-immutable",
+                zipball_url: "https://api.github.com/repos/owner/repo/zipball/v1.0.0-immutable",
+            },
+        }
+        updateMock.mockResolvedValueOnce(immutableReleaseResponse)
+
+        await action.perform()
+
+        expect(createMock).toHaveBeenCalledWith(
+            tag,
+            generatedReleaseBody,
+            commit,
+            discussionCategory,
+            true, // draft should be true when immutableCreate is true
+            makeLatest,
+            createName,
+            createPrerelease
+        )
+        // Should call update for publishImmutableRelease
+        expect(updateMock).toHaveBeenCalledWith(
+            releaseId,
+            tag,
+            undefined, // body is omitted
+            undefined, // commit is omitted
+            discussionCategory,
+            false, // draft is set to false to publish the release
+            makeLatest,
+            createName,
+            createPrerelease
+        )
+        // Should apply the immutable release data instead of the original
+        expect(applyReleaseDataMock).toHaveBeenCalledWith(immutableReleaseResponse.data)
+        assertAssetUrlsApplied({
+            art1: "https://github.com/owner/repo/releases/download/v1.0.0/art1",
+            art2: "https://github.com/owner/repo/releases/download/v1.0.0/art2",
+        })
+    })
+
+    it("publishes immutable release when allowUpdates is true but release does not exist", async () => {
+        const action = createAction(true, true, false, true, false, "", true, false)
+        const error = { status: 404 }
+        getMock.mockRejectedValue(error)
+        listMock.mockResolvedValue({ data: [] }) // No draft releases found
+
+        const immutableReleaseResponse = {
+            data: {
+                id: 888,
+                upload_url: "http://immutable-update.example.com",
+                html_url: "https://github.com/owner/repo/releases/tag/v1.0.0-immutable-update",
+                tarball_url: "https://api.github.com/repos/owner/repo/tarball/v1.0.0-immutable-update",
+                zipball_url: "https://api.github.com/repos/owner/repo/zipball/v1.0.0-immutable-update",
+            },
+        }
+        updateMock.mockResolvedValueOnce(immutableReleaseResponse)
+
+        await action.perform()
+
+        // Should try to get the release first (allowUpdates=true)
+        expect(getMock).toHaveBeenCalledWith(tag)
+        // Should check for draft releases when get fails with 404
+        expect(listMock).toHaveBeenCalled()
+        // Should create a new release when no drafts found
+        expect(createMock).toHaveBeenCalledWith(
+            tag,
+            generatedReleaseBody,
+            commit,
+            discussionCategory,
+            true, // draft should be true when immutableCreate is true
+            makeLatest,
+            createName,
+            createPrerelease
+        )
+        // Should call update for publishImmutableRelease
+        expect(updateMock).toHaveBeenCalledWith(
+            releaseId,
+            tag,
+            undefined, // body is omitted
+            undefined, // commit is omitted
+            discussionCategory,
+            false, // draft is set to false to publish the release
+            makeLatest,
+            createName,
+            createPrerelease
+        )
+        // Should apply the immutable release data instead of the original
+        expect(applyReleaseDataMock).toHaveBeenCalledWith(immutableReleaseResponse.data)
+        assertAssetUrlsApplied({
+            art1: "https://github.com/owner/repo/releases/download/v1.0.0/art1",
+            art2: "https://github.com/owner/repo/releases/download/v1.0.0/art2",
        })
    })

@@ -484,7 +786,12 @@ describe("Action", () => {
        hasArtifact: boolean,
        removeArtifacts = false,
        generateReleaseNotes = true,
-        omitBodyDuringUpdate = false
+        omitBodyDuringUpdate = false,
+        createdReleaseBody = createBody,
+        immutableCreate = true,
+        createdDraft = createDraft,
+        updatedReleaseBody = updateBody,
+        generateReleaseNotesPreviousTag: string | undefined = undefined
    ): Action {
        let inputArtifact: Artifact[]

@@ -494,7 +801,7 @@ describe("Action", () => {
            inputArtifact = []
        }

-        const MockReleases = jest.fn<Releases, any>(() => {
+        const MockReleases = vi.fn<() => Releases>(() => {
            return {
                create: createMock,
                deleteArtifact: deleteMock,
@@ -502,7 +809,7 @@ describe("Action", () => {
                listArtifactsForRelease: listArtifactsMock,
                listReleases: listMock,
                update: updateMock,
-                uploadArtifact: jest.fn(),
+                uploadArtifact: vi.fn(),
                generateReleaseNotes: genReleaseNotesMock,
            }
        })
@@ -541,21 +848,23 @@ describe("Action", () => {
            },
        })
        uploadMock.mockResolvedValue({
-            "art1": "https://github.com/owner/repo/releases/download/v1.0.0/art1",
-            "art2": "https://github.com/owner/repo/releases/download/v1.0.0/art2",
+            art1: "https://github.com/owner/repo/releases/download/v1.0.0/art1",
+            art2: "https://github.com/owner/repo/releases/download/v1.0.0/art2",
        })

-        const MockInputs = jest.fn<Inputs, any>(() => {
+        const MockInputs = vi.fn<() => Inputs>(() => {
            return {
                allowUpdates,
                artifactErrorsFailBuild: true,
                artifacts: inputArtifact,
-                createdDraft: createDraft,
-                createdReleaseBody: createBody,
+                createdDraft: createdDraft,
+                createdReleaseBody: createdReleaseBody,
                createdReleaseName: createName,
                commit,
                discussionCategory,
                generateReleaseNotes,
+                generateReleaseNotesPreviousTag: generateReleaseNotesPreviousTag,
+                immutableCreate: immutableCreate,
                makeLatest: makeLatest,
                owner: "owner",
                createdPrerelease: createPrerelease,
@@ -566,42 +875,42 @@ describe("Action", () => {
                tag,
                token,
                updatedDraft: updateDraft,
-                updatedReleaseBody: updateBody,
+                updatedReleaseBody: updatedReleaseBody,
                updatedReleaseName: updateName,
                updatedPrerelease: updatePrerelease,
                updateOnlyUnreleased: updateOnlyUnreleased,
                omitBodyDuringUpdate,
            }
        })
-        const MockOutputs = jest.fn<Outputs, any>(() => {
+        const MockOutputs = vi.fn<() => Outputs>(() => {
            return {
                applyReleaseData: applyReleaseDataMock,
                applyAssetUrls: applyAssetUrlsMock,
            }
        })
-        const MockUploader = jest.fn<ArtifactUploader, any>(() => {
+        const MockUploader = vi.fn<() => ArtifactUploader>(() => {
            return {
                uploadArtifacts: uploadMock,
            }
        })
-        const MockArtifactDestroyer = jest.fn<ArtifactDestroyer, any>(() => {
+        const MockArtifactDestroyer = vi.fn<() => ArtifactDestroyer>(() => {
            return {
                destroyArtifacts: artifactDestroyMock,
            }
        })

-        const MockActionSkipper = jest.fn<ActionSkipper, any>(() => {
+        const MockActionSkipper = vi.fn<() => ActionSkipper>(() => {
            return {
                shouldSkip: shouldSkipMock,
            }
        })

-        const inputs = new MockInputs()
-        const outputs = new MockOutputs()
-        const releases = new MockReleases()
-        const uploader = new MockUploader()
-        const artifactDestroyer = new MockArtifactDestroyer()
-        const actionSkipper = new MockActionSkipper()
+        const inputs = MockInputs()
+        const outputs = MockOutputs()
+        const releases = MockReleases()
+        const uploader = MockUploader()
+        const artifactDestroyer = MockArtifactDestroyer()
+        const actionSkipper = MockActionSkipper()

        return new Action(inputs, outputs, releases, uploader, artifactDestroyer, actionSkipper)
    }
--- a/tests/ActionSkipper.test.ts
+++ b/tests/ActionSkipper.test.ts
@@ -1,19 +1,20 @@
-import { ReleaseActionSkipper } from "../src/ActionSkipper"
-import type { Releases } from "../src/Releases"
+import { describe, expect, it, vi } from "vitest"
+import { ReleaseActionSkipper } from "../src/ActionSkipper.js"
+import type { Releases } from "../src/Releases.js"

 describe("shouldSkip", () => {
-    const getMock = jest.fn()
+    const getMock = vi.fn()
    const tag = "tag"
-    const MockReleases = jest.fn<Releases, any>(() => {
+    const MockReleases = vi.fn<() => Releases>(() => {
        return {
-            create: jest.fn(),
-            deleteArtifact: jest.fn(),
+            create: vi.fn(),
+            deleteArtifact: vi.fn(),
            getByTag: getMock,
-            listArtifactsForRelease: jest.fn(),
-            listReleases: jest.fn(),
-            update: jest.fn(),
-            uploadArtifact: jest.fn(),
-            generateReleaseNotes: jest.fn(),
+            listArtifactsForRelease: vi.fn(),
+            listReleases: vi.fn(),
+            update: vi.fn(),
+            uploadArtifact: vi.fn(),
+            generateReleaseNotes: vi.fn(),
        }
    })

--- a/tests/Artifact.test.ts
+++ b/tests/Artifact.test.ts
@@ -1,16 +1,19 @@
-import { Artifact } from "../src/Artifact"
+import * as fs from "node:fs"
+import { describe, expect, it, vi } from "vitest"
+import { Artifact } from "../src/Artifact.js"
+
+vi.mock("fs")

 const contentLength = 42
 const fakeReadStream = {}

-jest.mock("fs", () => {
-    return {
-        createReadStream: () => fakeReadStream,
-        statSync: () => {
-            return { size: contentLength }
-        },
-    }
-})
+const mockCreateReadStream = vi.mocked(fs.createReadStream)
+const mockStatSync = vi.mocked(fs.statSync)
+
+// biome-ignore lint/suspicious/noExplicitAny: Mock object for testing
+mockCreateReadStream.mockReturnValue(fakeReadStream as any)
+// biome-ignore lint/suspicious/noExplicitAny: Partial Stats object for testing
+mockStatSync.mockReturnValue({ size: contentLength } as any)

 describe("Artifact", () => {
    it("defaults contentType to raw", () => {
--- a/tests/ArtifactDestroyer.test.ts
+++ b/tests/ArtifactDestroyer.test.ts
@@ -1,10 +1,11 @@
-import { GithubArtifactDestroyer } from "../src/ArtifactDestroyer"
-import type { Releases } from "../src/Releases"
+import { beforeEach, describe, expect, it, vi } from "vitest"
+import { GithubArtifactDestroyer } from "../src/ArtifactDestroyer.js"
+import type { Releases } from "../src/Releases.js"

 const releaseId = 100

-const deleteMock = jest.fn()
-const listArtifactsMock = jest.fn()
+const deleteMock = vi.fn()
+const listArtifactsMock = vi.fn()

 describe("ArtifactDestroyer", () => {
    beforeEach(() => {
@@ -45,26 +46,26 @@ describe("ArtifactDestroyer", () => {
    })

    function createDestroyer(): GithubArtifactDestroyer {
-        const MockReleases = jest.fn<Releases, any>(() => {
+        const MockReleases = vi.fn<() => Releases>(() => {
            return {
-                create: jest.fn(),
+                create: vi.fn(),
                deleteArtifact: deleteMock,
-                getByTag: jest.fn(),
+                getByTag: vi.fn(),
                listArtifactsForRelease: listArtifactsMock,
-                listReleases: jest.fn(),
-                update: jest.fn(),
-                uploadArtifact: jest.fn(),
-                generateReleaseNotes: jest.fn(),
+                listReleases: vi.fn(),
+                update: vi.fn(),
+                uploadArtifact: vi.fn(),
+                generateReleaseNotes: vi.fn(),
            }
        })
-        return new GithubArtifactDestroyer(new MockReleases())
+        return new GithubArtifactDestroyer(MockReleases())
    }

-    function mockDeleteError(): any {
+    function mockDeleteError(): void {
        deleteMock.mockRejectedValue("error")
    }

-    function mockDeleteSuccess(): any {
+    function mockDeleteSuccess(): void {
        deleteMock.mockResolvedValue({})
    }

--- a/tests/ArtifactGlobber.test.ts
+++ b/tests/ArtifactGlobber.test.ts
@@ -1,32 +1,33 @@
-const warnMock = jest.fn()
+import * as fs from "node:fs"
+import * as core from "@actions/core"
+import { beforeEach, describe, expect, it, vi } from "vitest"

-import { FileArtifactGlobber } from "../src/ArtifactGlobber"
-import { Globber } from "../src/Globber"
-import { Artifact } from "../src/Artifact"
-import untildify = require("untildify")
+vi.mock("@actions/core")
+vi.mock("fs")
+
+import { Artifact } from "../src/Artifact.js"
+import { FileArtifactGlobber } from "../src/ArtifactGlobber.js"
+import type { Globber } from "../src/Globber.js"
+import { expandTilde } from "../src/PathExpander.js"
+
+const warnMock = vi.mocked(core.warning)
+const mockStatSync = vi.mocked(fs.statSync)
+// biome-ignore lint/suspicious/noExplicitAny: fs.realpathSync has overloads that are difficult to type
+const mockRealpathSync = vi.mocked(fs.realpathSync as any)

 const contentType = "raw"
-const globMock = jest.fn()
+const globMock = vi.fn()
 const globResults = ["file1", "file2"]

-jest.mock("@actions/core", () => {
-    return { warning: warnMock }
-})
+mockStatSync.mockReturnValue({
+    isDirectory(): boolean {
+        return false
+    },
+    // biome-ignore lint/suspicious/noExplicitAny: Partial Stats object for testing
+} as any)

-jest.mock("fs", () => {
-    return {
-        statSync: () => {
-            return {
-                isDirectory(): boolean {
-                    return false
-                },
-            }
-        },
-        realpathSync: () => {
-            return false
-        },
-    }
-})
+// biome-ignore lint/suspicious/noExplicitAny: Mock return value for testing
+mockRealpathSync.mockReturnValue(false as any)

 describe("ArtifactGlobber", () => {
    beforeEach(() => {
@@ -39,7 +40,7 @@ describe("ArtifactGlobber", () => {
        const expectedArtifacts = globResults.map((path) => new Artifact(path, contentType))

        expect(globber.globArtifactString("~/path", "raw", false)).toEqual(expectedArtifacts)
-        expect(globMock).toHaveBeenCalledWith(untildify("~/path"))
+        expect(globMock).toHaveBeenCalledWith(expandTilde("~/path"))
        expect(warnMock).not.toHaveBeenCalled()
    })

@@ -90,12 +91,12 @@ describe("ArtifactGlobber", () => {
    })

    function createArtifactGlobber(results: string[] = globResults): FileArtifactGlobber {
-        const MockGlobber = jest.fn<Globber, any>(() => {
+        const MockGlobber = vi.fn<() => Globber>(() => {
            return {
                glob: globMock,
            }
        })
        globMock.mockReturnValue(results)
-        return new FileArtifactGlobber(new MockGlobber())
+        return new FileArtifactGlobber(MockGlobber())
    }
 })
--- a/tests/ArtifactPathValidator.test.ts
+++ b/tests/ArtifactPathValidator.test.ts
@@ -1,22 +1,21 @@
-const directoryMock = jest.fn()
-const warnMock = jest.fn()
+import * as fs from "node:fs"
+import * as core from "@actions/core"
+import { describe, expect, it, vi } from "vitest"

-import { ArtifactPathValidator } from "../src/ArtifactPathValidator"
+vi.mock("@actions/core")
+vi.mock("fs")
+
+import { ArtifactPathValidator } from "../src/ArtifactPathValidator.js"
+
+const warnMock = vi.mocked(core.warning)
+const mockStatSync = vi.mocked(fs.statSync)
+const directoryMock = vi.fn()
+
+// biome-ignore lint/suspicious/noExplicitAny: Partial Stats object for testing
+mockStatSync.mockReturnValue({ isDirectory: directoryMock } as any)

 const pattern = "pattern"

-jest.mock("@actions/core", () => {
-    return { warning: warnMock }
-})
-
-jest.mock("fs", () => {
-    return {
-        statSync: () => {
-            return { isDirectory: directoryMock }
-        },
-    }
-})
-
 describe("ArtifactPathValidator", () => {
    beforeEach(() => {
        warnMock.mockClear()
@@ -36,7 +35,7 @@ describe("ArtifactPathValidator", () => {

    it("warns when no glob results are produced and empty results shouldn't throw", () => {
        const validator = new ArtifactPathValidator(false, [], pattern)
-        const result = validator.validate()
+        const _result = validator.validate()
        expect(warnMock).toHaveBeenCalled()
    })

--- a/tests/ArtifactUploader.test.ts
+++ b/tests/ArtifactUploader.test.ts
@@ -1,7 +1,8 @@
 import { RequestError } from "@octokit/request-error"
-import { Artifact } from "../src/Artifact"
-import { GithubArtifactUploader } from "../src/ArtifactUploader"
-import type { Releases } from "../src/Releases"
+import { beforeEach, describe, expect, it, vi } from "vitest"
+import { Artifact } from "../src/Artifact.js"
+import { GithubArtifactUploader } from "../src/ArtifactUploader.js"
+import type { Releases } from "../src/Releases.js"

 const artifacts = [new Artifact("a/art1"), new Artifact("b/art2")]
 const fakeReadStream = {}
@@ -9,9 +10,9 @@ const contentLength = 42
 const releaseId = 100
 const url = "http://api.example.com"

-const deleteMock = jest.fn()
-const listArtifactsMock = jest.fn()
-const uploadMock = jest.fn()
+const deleteMock = vi.fn()
+const listArtifactsMock = vi.fn()
+const uploadMock = vi.fn()

 // Mock response with browser_download_url
 const mockUploadResponse = (name: string) => ({
@@ -19,11 +20,11 @@ const mockUploadResponse = (name: string) => ({
        browser_download_url: `https://github.com/octocat/Hello-World/releases/download/v1.0.0/${name}`,
        name: name,
        id: 1,
-    }
+    },
 })

-jest.mock("fs", () => {
-    const originalFs = jest.requireActual("fs")
+vi.mock("fs", async () => {
+    const originalFs = await vi.importActual<typeof import("fs")>("fs")
    return {
        ...originalFs,
        promises: {},
@@ -49,8 +50,8 @@ describe("ArtifactUploader", () => {
        const result = await uploader.uploadArtifacts(artifacts, releaseId, url)

        expect(result).toEqual({
-            "art1": "https://github.com/octocat/Hello-World/releases/download/v1.0.0/art1",
-            "art2": "https://github.com/octocat/Hello-World/releases/download/v1.0.0/art2",
+            art1: "https://github.com/octocat/Hello-World/releases/download/v1.0.0/art1",
+            art2: "https://github.com/octocat/Hello-World/releases/download/v1.0.0/art2",
        })
        expect(uploadMock).toHaveBeenCalledTimes(2)
    })
@@ -117,8 +118,8 @@ describe("ArtifactUploader", () => {
        const result = await uploader.uploadArtifacts(artifacts, releaseId, url)

        expect(result).toEqual({
-            "art1": "https://github.com/octocat/Hello-World/releases/download/v1.0.0/art1",
-            "art2": "https://github.com/octocat/Hello-World/releases/download/v1.0.0/art2",
+            art1: "https://github.com/octocat/Hello-World/releases/download/v1.0.0/art1",
+            art2: "https://github.com/octocat/Hello-World/releases/download/v1.0.0/art2",
        })
        expect(uploadMock).toHaveBeenCalledTimes(2)
        expect(uploadMock).toHaveBeenCalledWith(url, contentLength, "raw", fakeReadStream, "art1", releaseId)
@@ -138,8 +139,8 @@ describe("ArtifactUploader", () => {
        const result = await uploader.uploadArtifacts(artifacts, releaseId, url)

        expect(result).toEqual({
-            "art1": "https://github.com/octocat/Hello-World/releases/download/v1.0.0/art1",
-            "art2": "https://github.com/octocat/Hello-World/releases/download/v1.0.0/art2",
+            art1: "https://github.com/octocat/Hello-World/releases/download/v1.0.0/art1",
+            art2: "https://github.com/octocat/Hello-World/releases/download/v1.0.0/art2",
        })
        expect(uploadMock).toHaveBeenCalledTimes(2)
        expect(uploadMock).toHaveBeenCalledWith(url, contentLength, "raw", fakeReadStream, "art1", releaseId)
@@ -201,8 +202,8 @@ describe("ArtifactUploader", () => {
        const result = await uploader.uploadArtifacts(artifacts, releaseId, url)

        expect(result).toEqual({
-            "art1": "https://github.com/octocat/Hello-World/releases/download/v1.0.0/art1",
-            "art2": "https://github.com/octocat/Hello-World/releases/download/v1.0.0/art2",
+            art1: "https://github.com/octocat/Hello-World/releases/download/v1.0.0/art1",
+            art2: "https://github.com/octocat/Hello-World/releases/download/v1.0.0/art2",
        })
        expect(uploadMock).toHaveBeenCalledTimes(2)
        expect(uploadMock).toHaveBeenCalledWith(url, contentLength, "raw", fakeReadStream, "art1", releaseId)
@@ -212,26 +213,26 @@ describe("ArtifactUploader", () => {
    })

    function createUploader(replaces: boolean, throws = false): GithubArtifactUploader {
-        const MockReleases = jest.fn<Releases, any>(() => {
+        const MockReleases = vi.fn<() => Releases>(() => {
            return {
-                create: jest.fn(),
+                create: vi.fn(),
                deleteArtifact: deleteMock,
-                getByTag: jest.fn(),
+                getByTag: vi.fn(),
                listArtifactsForRelease: listArtifactsMock,
-                listReleases: jest.fn(),
-                update: jest.fn(),
+                listReleases: vi.fn(),
+                update: vi.fn(),
                uploadArtifact: uploadMock,
-                generateReleaseNotes: jest.fn(),
+                generateReleaseNotes: vi.fn(),
            }
        })
-        return new GithubArtifactUploader(new MockReleases(), replaces, throws)
+        return new GithubArtifactUploader(MockReleases(), replaces, throws)
    }

-    function mockDeleteError(): any {
+    function mockDeleteError(): void {
        deleteMock.mockRejectedValue("error")
    }

-    function mockDeleteSuccess(): any {
+    function mockDeleteSuccess(): void {
        deleteMock.mockResolvedValue({})
    }

--- a/tests/GithubError.test.ts
+++ b/tests/GithubError.test.ts
@@ -1,4 +1,5 @@
-import { GithubError } from "../src/GithubError"
+import { describe, expect, it } from "vitest"
+import { GithubError } from "../src/GithubError.js"

 describe("ErrorMessage", () => {
    describe("has error with code", () => {
--- a/tests/GithubErrorDetail.test.ts
+++ b/tests/GithubErrorDetail.test.ts
@@ -1,4 +1,5 @@
-import { GithubErrorDetail } from "../src/GithubErrorDetail"
+import { describe, expect, it } from "vitest"
+import { GithubErrorDetail } from "../src/GithubErrorDetail.js"

 describe("GithubErrorDetail", () => {
    it("provides error code", () => {
--- a/tests/Inputs.test.ts
+++ b/tests/Inputs.test.ts
@@ -1,41 +1,56 @@
-const mockGetInput = jest.fn()
-const mockGetBooleanInput = jest.fn()
-const mockGlob = jest.fn()
-const mockReadFileSync = jest.fn()
-const mockStatSync = jest.fn()
+import * as fs from "node:fs"
+import * as core from "@actions/core"
+import type * as github from "@actions/github"
+import { beforeEach, describe, expect, it, vi } from "vitest"

-import { Artifact } from "../src/Artifact"
-import { ArtifactGlobber } from "../src/ArtifactGlobber"
-import { Context } from "@actions/github/lib/context"
-import { Inputs, CoreInputs } from "../src/Inputs"
+vi.mock("@actions/core")
+vi.mock("fs")
+
+import { Artifact } from "../src/Artifact.js"
+import type { ArtifactGlobber } from "../src/ArtifactGlobber.js"
+import { CoreInputs, type Inputs } from "../src/Inputs.js"
+
+const mockGetInput = vi.mocked(core.getInput)
+const mockGetBooleanInput = vi.mocked(core.getBooleanInput)
+const mockReadFileSync = vi.mocked(fs.readFileSync)
+const _mockStatSync = vi.mocked(fs.statSync)
+const mockExistsSync = vi.mocked(fs.existsSync)
+const mockGlob = vi.fn()
+
+// existsSync is used by Context's constructor
+mockExistsSync.mockReturnValue(false)

 const artifacts = [new Artifact("a/art1"), new Artifact("b/art2")]

-jest.mock("@actions/core", () => {
-    return {
-        getInput: mockGetInput,
-        getBooleanInput: mockGetBooleanInput,
-    }
-})
-
-jest.mock("fs", () => {
-    // existsSync is used by Context's constructor
-    // noinspection JSUnusedGlobalSymbols
-    return {
-        existsSync: () => {
-            return false
-        },
-        readFileSync: mockReadFileSync,
-        statSync: mockStatSync,
-    }
-})
-
 describe("Inputs", () => {
-    let context: Context
+    let context: typeof github.context
    let inputs: Inputs
    beforeEach(() => {
        mockGetInput.mockReset()
-        context = new Context()
+        mockGlob.mockClear()
+        context = {
+            payload: {},
+            eventName: "",
+            sha: "",
+            ref: "",
+            workflow: "",
+            action: "",
+            actor: "",
+            job: "",
+            runNumber: 0,
+            runId: 0,
+            runAttempt: 0,
+            apiUrl: "",
+            serverUrl: "",
+            graphqlUrl: "",
+            get repo() {
+                const repo = process.env.GITHUB_REPOSITORY || "/"
+                const [owner, repoName] = repo.split("/")
+                return { owner: owner || "", repo: repoName || "" }
+            },
+            issue: { owner: "", repo: "", number: 0 },
+            // biome-ignore lint/suspicious/noExplicitAny: Partial Context object for testing
+        } as any
        inputs = new CoreInputs(createGlobber(), context)
    })

@@ -189,17 +204,46 @@ describe("Inputs", () => {
    })

    describe("generateReleaseNotes", () => {
-        it("returns returns true", function () {
+        it("returns returns true", () => {
            mockGetInput.mockReturnValue("true")
            expect(inputs.generateReleaseNotes).toBe(true)
        })

-        it("returns false when omitted", function () {
+        it("returns false when omitted", () => {
            mockGetInput.mockReturnValue("")
            expect(inputs.generateReleaseNotes).toBe(false)
        })
    })

+    describe("generateReleaseNotesPreviousTag", () => {
+        it("returns the previous tag when provided", () => {
+            mockGetInput.mockReturnValue("v1.0.0")
+            expect(inputs.generateReleaseNotesPreviousTag).toBe("v1.0.0")
+        })
+
+        it("returns undefined when omitted", () => {
+            mockGetInput.mockReturnValue("")
+            expect(inputs.generateReleaseNotesPreviousTag).toBeUndefined()
+        })
+    })
+
+    describe("immutableCreate", () => {
+        it("returns false by default", () => {
+            mockGetInput.mockReturnValue("")
+            expect(inputs.immutableCreate).toBe(false)
+        })
+
+        it("returns true when explicitly set", () => {
+            mockGetInput.mockReturnValue("true")
+            expect(inputs.immutableCreate).toBe(true)
+        })
+
+        it("returns false when explicitly disabled", () => {
+            mockGetInput.mockReturnValue("false")
+            expect(inputs.immutableCreate).toBe(false)
+        })
+    })
+
    describe("makeLatest", () => {
        it("returns legacy", () => {
            mockGetInput.mockReturnValueOnce("legacy")
@@ -223,12 +267,12 @@ describe("Inputs", () => {
    })

    describe("owner", () => {
-        it("returns owner from context", function () {
+        it("returns owner from context", () => {
            process.env.GITHUB_REPOSITORY = "owner/repo"
            mockGetInput.mockReturnValue("")
            expect(inputs.owner).toBe("owner")
        })
-        it("returns owner from inputs", function () {
+        it("returns owner from inputs", () => {
            mockGetInput.mockReturnValue("owner")
            expect(inputs.owner).toBe("owner")
        })
@@ -268,12 +312,12 @@ describe("Inputs", () => {
    })

    describe("repo", () => {
-        it("returns repo from context", function () {
+        it("returns repo from context", () => {
            process.env.GITHUB_REPOSITORY = "owner/repo"
            mockGetInput.mockReturnValue("")
            expect(inputs.repo).toBe("repo")
        })
-        it("returns repo from inputs", function () {
+        it("returns repo from inputs", () => {
            mockGetInput.mockReturnValue("repo")
            expect(inputs.repo).toBe("repo")
        })
@@ -301,11 +345,6 @@ describe("Inputs", () => {
            context.ref = "refs/tags/sha-tag"
            expect(inputs.tag).toBe("sha-tag")
        })
-        it("returns context sha when input is null", () => {
-            mockGetInput.mockReturnValue(null)
-            context.ref = "refs/tags/sha-tag"
-            expect(inputs.tag).toBe("sha-tag")
-        })
        it("throws if no tag", () => {
            context.ref = ""
            expect(() => inputs.tag).toThrow()
@@ -433,12 +472,12 @@ describe("Inputs", () => {
    })

    function createGlobber(): ArtifactGlobber {
-        const MockGlobber = jest.fn<ArtifactGlobber, any>(() => {
+        const MockGlobber = vi.fn<() => ArtifactGlobber>(() => {
            return {
                globArtifactString: mockGlob,
            }
        })
        mockGlob.mockImplementation(() => artifacts)
-        return new MockGlobber()
+        return MockGlobber()
    }
 })
--- a/tests/Integration.test.ts
+++ b/tests/Integration.test.ts
@@ -1,13 +1,14 @@
-import { Action } from "../src/Action"
+import * as path from "node:path"
 import * as github from "@actions/github"
-import { Inputs } from "../src/Inputs"
-import { GithubReleases, ReleaseData } from "../src/Releases"
-import { GithubArtifactUploader } from "../src/ArtifactUploader"
-import * as path from "path"
-import { FileArtifactGlobber } from "../src/ArtifactGlobber"
-import { Outputs } from "../src/Outputs"
-import { GithubArtifactDestroyer } from "../src/ArtifactDestroyer"
-import { ReleaseActionSkipper } from "../src/ActionSkipper"
+import { beforeEach, describe, it, vi } from "vitest"
+import { Action } from "../src/Action.js"
+import { ReleaseActionSkipper } from "../src/ActionSkipper.js"
+import { GithubArtifactDestroyer } from "../src/ArtifactDestroyer.js"
+import { FileArtifactGlobber } from "../src/ArtifactGlobber.js"
+import { GithubArtifactUploader } from "../src/ArtifactUploader.js"
+import type { Inputs } from "../src/Inputs.js"
+import type { Outputs } from "../src/Outputs.js"
+import { GithubReleases, type ReleaseData } from "../src/Releases.js"

 // This test is currently intended to be manually run during development. To run:
 // - Make sure you have an environment variable named GITHUB_TOKEN assigned to your token
@@ -34,7 +35,7 @@ describe.skip("Integration Test", () => {
    })

    function getInputs(): Inputs {
-        const MockInputs = jest.fn<Inputs, any>(() => {
+        const MockInputs = vi.fn<() => Inputs>(() => {
            return {
                allowUpdates: true,
                artifactErrorsFailBuild: false,
@@ -45,6 +46,7 @@ describe.skip("Integration Test", () => {
                commit: undefined,
                discussionCategory: "Release",
                generateReleaseNotes: true,
+                immutableCreate: true,
                omitBodyDuringUpdate: false,
                owner: "ncipollo",
                createdPrerelease: false,
@@ -61,11 +63,11 @@ describe.skip("Integration Test", () => {
                updateOnlyUnreleased: false,
            }
        })
-        return new MockInputs()
+        return MockInputs()
    }

    function getOutputs(): Outputs {
-        const MockOutputs = jest.fn<Outputs, any>(() => {
+        const MockOutputs = vi.fn<() => Outputs>(() => {
            return {
                applyReleaseData(releaseData: ReleaseData) {
                    console.log(`Release Data: ${releaseData}`)
@@ -75,7 +77,7 @@ describe.skip("Integration Test", () => {
                },
            }
        })
-        return new MockOutputs()
+        return MockOutputs()
    }

    function artifacts() {
--- a/tests/Outputs.test.ts
+++ b/tests/Outputs.test.ts
@@ -1,8 +1,10 @@
-import { CoreOutputs, type Outputs } from "../src/Outputs"
-import type { ReleaseData } from "../src/Releases"
+import * as core from "@actions/core"
+import { describe, expect, it, vi } from "vitest"
+import { CoreOutputs, type Outputs } from "../src/Outputs.js"
+import type { ReleaseData } from "../src/Releases.js"

-jest.mock("@actions/core")
-const { setOutput: mockSetOutput } = jest.mocked(require("@actions/core"))
+vi.mock("@actions/core")
+const mockSetOutput = vi.mocked(core.setOutput)

 const TEST_URLS = {
    HTML_URL: "https://api.example.com/assets",
--- a/tests/PathExpander.test.ts
+++ b/tests/PathExpander.test.ts
@@ -0,0 +1,42 @@
+import os from "node:os"
+import { describe, expect, it } from "vitest"
+import { expandTilde } from "../src/PathExpander.js"
+
+describe("PathExpander", () => {
+    describe("expandTilde", () => {
+        it("expands ~ at the start of a path", () => {
+            const result = expandTilde("~/documents")
+            expect(result).toBe(`${os.homedir()}/documents`)
+        })
+
+        it("expands ~ with backslash separator", () => {
+            const result = expandTilde("~\\documents")
+            expect(result).toBe(`${os.homedir()}\\documents`)
+        })
+
+        it("expands standalone ~", () => {
+            const result = expandTilde("~")
+            expect(result).toBe(os.homedir())
+        })
+
+        it("does not expand ~ in the middle of a path", () => {
+            const result = expandTilde("/home/~user/documents")
+            expect(result).toBe("/home/~user/documents")
+        })
+
+        it("does not expand ~username patterns", () => {
+            const result = expandTilde("~username/documents")
+            expect(result).toBe("~username/documents")
+        })
+
+        it("returns path unchanged when no tilde present", () => {
+            const result = expandTilde("/absolute/path")
+            expect(result).toBe("/absolute/path")
+        })
+
+        it("returns relative path unchanged", () => {
+            const result = expandTilde("relative/path")
+            expect(result).toBe("relative/path")
+        })
+    })
+})
--- a/tests/ReleaseValidator.test.ts
+++ b/tests/ReleaseValidator.test.ts
@@ -1,4 +1,5 @@
-import { ReleaseValidator } from "../src/ReleaseValidator"
+import { describe, expect, it } from "vitest"
+import { ReleaseValidator } from "../src/ReleaseValidator.js"

 describe("validateReleaseUpdate", () => {
    describe("updateOnlyUnreleased is disabled", () => {
--- a/action.yml
+++ b/action.yml
@@ -47,6 +47,14 @@ inputs:
    description: 'Indicates if release notes should be automatically generated.'
    required: false
    default: 'false'
+  generateReleaseNotesPreviousTag:
+    description: 'An optional previous tag to use when generating release notes. This will limit the release notes to changes between the two tags.'
+    required: false
+    default: ''
+  immutableCreate:
+    description: 'Indicates if immutable release creation should be used. When enabled, the action will first create a draft, upload artifacts, then publish the release.'
+    required: false
+    default: 'false'
  makeLatest:
    description: 'Indicates if the release should be the "latest" release or not.'
    required: false
@@ -129,7 +137,7 @@ outputs:
  assets:
    description: 'JSON string containing a map of asset names to download URLs for uploaded assets.'
 runs:
-  using: 'node20'
+  using: 'node24'
  main: 'dist/index.js'
 branding:
  icon: 'tag'
--- a/biome.json
+++ b/biome.json
@@ -1,5 +1,5 @@
 {
-    "$schema": "https://biomejs.dev/schemas/1.9.4/schema.json",
+    "$schema": "https://biomejs.dev/schemas/2.3.13/schema.json",
    "vcs": {
        "enabled": false,
        "clientKind": "git",
@@ -7,7 +7,7 @@
    },
    "files": {
        "ignoreUnknown": false,
-        "ignore": ["node_modules/**/*", "dist/"]
+        "includes": ["**", "!**/node_modules/**/*", "!**/dist/"]
    },
    "formatter": {
        "enabled": true,
@@ -17,9 +17,9 @@
        "indentWidth": 4,
        "lineWidth": 120
    },
-    "organizeImports": { "enabled": true },
+    "assist": { "actions": { "source": { "organizeImports": "on" } } },
    "linter": {
-        "enabled": false,
+        "enabled": true,
        "rules": {
            "recommended": true
        }
--- a/dist/index.js
+++ b/dist/index.js
--- a/dist/index.js.map
+++ b/dist/index.js.map
--- a/dist/licenses.txt
+++ b/dist/licenses.txt
@@ -71,28 +71,6 @@ The above copyright notice and this permission notice shall be included in all c

 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

-@fastify/busboy
-MIT
-Copyright Brian White. All rights reserved.
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to
-deal in the Software without restriction, including without limitation the
-rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
-sell copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
-IN THE SOFTWARE.
-
@octokit/auth-token
 MIT
 The MIT License
@@ -265,31 +243,6 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.


-balanced-match
-MIT
-(MIT)
-
-Copyright (c) 2013 Julian Gruber &lt;julian@juliangruber.com&gt;
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of
-this software and associated documentation files (the "Software"), to deal in
-the Software without restriction, including without limitation the rights to
-use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
-of the Software, and to permit persons to whom the Software is furnished to do
-so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all
-copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-SOFTWARE.
-
-
 before-after-hook
 Apache-2.0
                                 Apache License
@@ -495,11 +448,14 @@ Apache-2.0
   limitations under the License.


-brace-expansion
+fast-content-type-parse
 MIT
 MIT License

-Copyright (c) 2013 Julian Gruber <julian@juliangruber.com>
+Copyright (c) 2023 The Fastify Team
+
+The Fastify team members are listed at https://github.com/fastify/fastify#team
+and in the README file.

 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -519,123 +475,16 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.

-
-deprecation
-ISC
-The ISC License
-
-Copyright (c) Gregor Martynus and contributors
-
-Permission to use, copy, modify, and/or distribute this software for any
-purpose with or without fee is hereby granted, provided that the above
-copyright notice and this permission notice appear in all copies.
-
-THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
-IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-
 glob
-ISC
-The ISC License
-
-Copyright (c) 2009-2023 Isaac Z. Schlueter and Contributors
-
-Permission to use, copy, modify, and/or distribute this software for any
-purpose with or without fee is hereby granted, provided that the above
-copyright notice and this permission notice appear in all copies.
-
-THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
-IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-
-lru-cache
-ISC
-The ISC License
-
-Copyright (c) 2010-2023 Isaac Z. Schlueter and Contributors
-
-Permission to use, copy, modify, and/or distribute this software for any
-purpose with or without fee is hereby granted, provided that the above
-copyright notice and this permission notice appear in all copies.
-
-THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
-IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-
-minimatch
-ISC
-The ISC License
-
-Copyright (c) 2011-2023 Isaac Z. Schlueter and Contributors
-
-Permission to use, copy, modify, and/or distribute this software for any
-purpose with or without fee is hereby granted, provided that the above
-copyright notice and this permission notice appear in all copies.
-
-THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
-IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-
-minipass
-ISC
-The ISC License
-
-Copyright (c) 2017-2023 npm, Inc., Isaac Z. Schlueter, and Contributors
-
-Permission to use, copy, modify, and/or distribute this software for any
-purpose with or without fee is hereby granted, provided that the above
-copyright notice and this permission notice appear in all copies.
-
-THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
-IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-
-once
-ISC
-The ISC License
-
-Copyright (c) Isaac Z. Schlueter and Contributors
-
-Permission to use, copy, modify, and/or distribute this software for any
-purpose with or without fee is hereby granted, provided that the above
-copyright notice and this permission notice appear in all copies.
-
-THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
-IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-
-path-scurry
 BlueOak-1.0.0
+All packages under `src/` are licensed according to the terms in
+their respective `LICENSE` or `LICENSE.md` files.
+
+The remainder of this project is licensed under the Blue Oak
+Model License, as follows:
+
+-----
+
 # Blue Oak Model License

 Version 1.0.0
@@ -747,40 +596,8 @@ universal-user-agent
 ISC
 # [ISC License](https://spdx.org/licenses/ISC)

-Copyright (c) 2018, Gregor Martynus (https://github.com/gr2m)
+Copyright (c) 2018-2021, Gregor Martynus (https://github.com/gr2m)

 Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.

 THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
-
-
-untildify
-MIT
-MIT License
-
-Copyright (c) Sindre Sorhus <sindresorhus@gmail.com> (sindresorhus.com)
-
-Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
-
-
-wrappy
-ISC
-The ISC License
-
-Copyright (c) Isaac Z. Schlueter and Contributors
-
-Permission to use, copy, modify, and/or distribute this software for any
-purpose with or without fee is hereby granted, provided that the above
-copyright notice and this permission notice appear in all copies.
-
-THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
-WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
-MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
-ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
-WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
-ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
-IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
--- a/dist/package.json
+++ b/dist/package.json
@@ -0,0 +1,3 @@
+{
+  "type": "module"
+}
--- a/dist/sourcemap-register.cjs
+++ b/dist/sourcemap-register.cjs
--- a/package.json
+++ b/package.json
@@ -1,66 +1,53 @@
 {
    "name": "release-action",
    "version": "1.1.0",
+    "type": "module",
    "private": true,
    "description": "An action which manages a github release",
-    "main": "lib/main.js",
+    "main": "lib/src/Main.js",
    "scripts": {
        "build": "tsc",
        "clean": "rm -rf lib/*",
-        "coverage": "jest --coverage",
-        "debug": "yarn clean && yarn install && yarn build && yarn package",
-        "format": "yarn biome format --write .",
+        "coverage": "vitest run --coverage",
+        "debug": "pnpm clean && pnpm install && pnpm build && pnpm package",
+        "format": "pnpm biome format --write .",
        "package": "ncc build --source-map --license licenses.txt",
-        "release": "yarn clean && yarn install --production && yarn build && yarn package",
-        "test": "jest"
+        "release": "pnpm clean && pnpm install && pnpm build && pnpm package",
+        "test": "vitest run"
    },
    "repository": {
        "type": "git",
        "url": "git+https://github.com/ncipollo/release-action.git"
    },
-    "keywords": ["actions", "node", "setup"],
+    "keywords": [
+        "actions",
+        "node",
+        "setup"
+    ],
    "author": "GitHub",
    "license": "MIT",
    "engines": {
        "node": ">=20"
    },
-    "jest": {
-        "clearMocks": true,
-        "collectCoverage": true,
-        "coveragePathIgnorePatterns": ["src/Globber.ts", "src/Releases.ts"],
-        "coverageThreshold": {
-            "global": {
-                "branches": 95,
-                "functions": 100,
-                "lines": 100,
-                "statements": 100
-            }
-        },
-        "moduleFileExtensions": ["js", "ts"],
-        "testEnvironment": "node",
-        "testMatch": ["**/*.test.ts"],
-        "testRunner": "jest-circus/runner",
-        "transform": {
-            "^.+\\.ts$": "ts-jest"
-        },
-        "verbose": true
-    },
    "dependencies": {
-        "@actions/core": "^1.11.1",
-        "@actions/github": "^6.0.1",
-        "@types/node": "^22.15.29",
-        "glob": "^11.0.2",
-        "untildify": "^4.0.0"
+        "@actions/core": "^3.0.0",
+        "@actions/github": "^9.0.0",
+        "@types/node": "^25.1.0",
+        "glob": "^13.0.6"
+    },
+    "pnpm": {
+        "overrides": {
+            "undici": ">=6.24.0"
+        }
    },
    "devDependencies": {
-        "@biomejs/biome": "1.9.4",
-        "@types/jest": "^29.5.14",
-        "jest": "^29.7.0",
-        "jest-circus": "^29.7.0",
-        "ts-jest": "^29.3.4",
-        "typescript": "^5.8.3"
-    },
-    "resolutions": {
-        "jest-cli/yargs": "^17.3.1"
+        "@biomejs/biome": "2.4.4",
+        "@octokit/plugin-rest-endpoint-methods": "^10.4.1",
+        "@octokit/request-error": "^7.1.0",
+        "@octokit/types": "^16.0.0",
+        "@vercel/ncc": "^0.38.4",
+        "@vitest/coverage-v8": "^4.1.0",
+        "typescript": "^5.9.3",
+        "vitest": "^4.1.0"
    }
 }
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
--- a/sheepit.toml
+++ b/sheepit.toml
@@ -3,4 +3,4 @@ enable_commit = true
 tag_pattern = "v{version}"

 [scripts]
-before_commit = "yarn release"
+before_commit = "pnpm release"
--- a/src/Action.ts
+++ b/src/Action.ts
@@ -1,18 +1,18 @@
 import * as core from "@actions/core"
-import type { ActionSkipper } from "./ActionSkipper"
-import type { ArtifactDestroyer } from "./ArtifactDestroyer"
-import type { ArtifactUploader } from "./ArtifactUploader"
-import { GithubError } from "./GithubError"
-import type { Inputs } from "./Inputs"
-import type { Outputs } from "./Outputs"
-import { ReleaseValidator } from "./ReleaseValidator"
+import type { ActionSkipper } from "./ActionSkipper.js"
+import type { ArtifactDestroyer } from "./ArtifactDestroyer.js"
+import type { ArtifactUploader } from "./ArtifactUploader.js"
+import { GithubError } from "./GithubError.js"
+import type { Inputs } from "./Inputs.js"
+import type { Outputs } from "./Outputs.js"
+import { ReleaseValidator } from "./ReleaseValidator.js"
 import type {
    CreateOrUpdateReleaseResponse,
    CreateReleaseResponse,
    ReleaseByTagResponse,
    Releases,
    UpdateReleaseResponse,
-} from "./Releases"
+} from "./Releases.js"

 export class Action {
    private inputs: Inputs
@@ -47,83 +47,47 @@ export class Action {
            return
        }

-        const releaseResponse = await this.createOrUpdateRelease()
-        const releaseData = releaseResponse.data
-        const releaseId = releaseData.id
-        const uploadUrl = releaseData.upload_url
-
-        if (this.inputs.removeArtifacts) {
-            await this.artifactDestroyer.destroyArtifacts(releaseId)
-        }
-
-        const artifacts = this.inputs.artifacts
-        let assetUrls: Record<string, string> = {}
-        if (artifacts.length > 0) {
-            assetUrls = await this.uploader.uploadArtifacts(artifacts, releaseId, uploadUrl)
-        }
-
-        this.outputs.applyReleaseData(releaseData)
-        this.outputs.applyAssetUrls(assetUrls)
+        await this.createOrUpdateRelease()
    }

-    private async createOrUpdateRelease(): Promise<CreateOrUpdateReleaseResponse> {
+    private async createOrUpdateRelease() {
        if (this.inputs.allowUpdates) {
            let getResponse: ReleaseByTagResponse
            try {
                getResponse = await this.releases.getByTag(this.inputs.tag)
            } catch (error: any) {
-                return await this.checkForMissingReleaseError(error)
+                await this.checkForMissingReleaseError(error)
+                return
            }

            // Fail if this isn't an unreleased release & updateOnlyUnreleased is enabled.
            this.releaseValidator.validateReleaseUpdate(getResponse.data)

-            return await this.updateRelease(getResponse.data.id)
+            await this.updateRelease(getResponse.data.id)
        } else {
-            return await this.createRelease()
+            await this.createRelease()
        }
    }

-    private async checkForMissingReleaseError(error: Error): Promise<CreateOrUpdateReleaseResponse> {
+    private async checkForMissingReleaseError(error: Error): Promise<void> {
        if (Action.noPublishedRelease(error)) {
-            return await this.updateDraftOrCreateRelease()
+            await this.updateDraftOrCreateRelease()
        } else {
            throw error
        }
    }

-    private async updateRelease(id: number): Promise<UpdateReleaseResponse> {
-        let releaseBody = this.inputs.updatedReleaseBody
-
-        if (this.inputs.generateReleaseNotes && !this.inputs.omitBodyDuringUpdate) {
-            const response = await this.releases.generateReleaseNotes(this.inputs.tag)
-            releaseBody = response.data.body
-        }
-
-        return await this.releases.update(
-            id,
-            this.inputs.tag,
-            releaseBody,
-            this.inputs.commit,
-            this.inputs.discussionCategory,
-            this.inputs.updatedDraft,
-            this.inputs.makeLatest,
-            this.inputs.updatedReleaseName,
-            this.inputs.updatedPrerelease
-        )
-    }
-
    private static noPublishedRelease(error: any): boolean {
        const githubError = new GithubError(error)
        return githubError.status == 404
    }

-    private async updateDraftOrCreateRelease(): Promise<CreateReleaseResponse | UpdateReleaseResponse> {
+    private async updateDraftOrCreateRelease(): Promise<void> {
        const draftReleaseId = await this.findMatchingDraftReleaseId()
        if (draftReleaseId) {
-            return await this.updateRelease(draftReleaseId)
+            await this.updateRelease(draftReleaseId)
        } else {
-            return await this.createRelease()
+            await this.createRelease()
        }
    }

@@ -140,17 +104,111 @@ export class Action {
        return draftRelease?.id
    }

-    private async createRelease(): Promise<CreateReleaseResponse> {
-        return await this.releases.create(
+    private async updateRelease(id: number) {
+        const releaseBody = await this.combineBodyWithReleaseNotes(this.inputs.updatedReleaseBody, true)
+
+        const releaseResponse = await this.releases.update(
+            id,
            this.inputs.tag,
-            this.inputs.createdReleaseBody,
+            releaseBody,
            this.inputs.commit,
            this.inputs.discussionCategory,
-            this.inputs.createdDraft,
-            this.inputs.generateReleaseNotes,
+            this.inputs.updatedDraft,
+            this.inputs.makeLatest,
+            this.inputs.updatedReleaseName,
+            this.inputs.updatedPrerelease
+        )
+
+        await this.processReleaseArtifactsAndOutputs(releaseResponse, false)
+    }
+
+    private async createRelease() {
+        const releaseBody = await this.combineBodyWithReleaseNotes(this.inputs.createdReleaseBody, false)
+
+        // If immutableCreate is enabled we need to start with a draft release
+        const draft = this.inputs.createdDraft || this.inputs.immutableCreate
+
+        const releaseResponse = await this.releases.create(
+            this.inputs.tag,
+            releaseBody,
+            this.inputs.commit,
+            this.inputs.discussionCategory,
+            draft,
+            this.inputs.makeLatest,
+            this.inputs.createdReleaseName,
+            this.inputs.createdPrerelease
+        )
+
+        await this.processReleaseArtifactsAndOutputs(releaseResponse, true)
+    }
+
+    private async processReleaseArtifactsAndOutputs(releaseResponse: CreateOrUpdateReleaseResponse, wasCreated: boolean) {
+        const releaseData = releaseResponse.data
+        const releaseId = releaseData.id
+        const uploadUrl = releaseData.upload_url
+
+        if (this.inputs.removeArtifacts) {
+            await this.artifactDestroyer.destroyArtifacts(releaseId)
+        }
+
+        const artifacts = this.inputs.artifacts
+        let assetUrls: Record<string, string> = {}
+        if (artifacts.length > 0) {
+            assetUrls = await this.uploader.uploadArtifacts(artifacts, releaseId, uploadUrl)
+        }
+
+        if (wasCreated) {
+            const immutableRelease = await this.publishImmutableRelease(releaseId)
+            if (immutableRelease) {
+                this.setOutputs(immutableRelease.data, assetUrls)
+                return
+            }
+        }
+
+        this.setOutputs(releaseData, assetUrls)
+    }
+
+    private async publishImmutableRelease(releaseId: number): Promise<CreateOrUpdateReleaseResponse | undefined> {
+        // Check if immutableCreate is on and createdDraft is off
+        if (!this.inputs.immutableCreate || this.inputs.createdDraft) {
+            return undefined
+        }
+
+        return await this.releases.update(
+            releaseId,
+            this.inputs.tag,
+            undefined, // body is omitted
+            undefined, // commit is omitted
+            this.inputs.discussionCategory,
+            false, // We want to publish the release, set draft to false
            this.inputs.makeLatest,
            this.inputs.createdReleaseName,
            this.inputs.createdPrerelease
        )
    }
+
+    private async combineBodyWithReleaseNotes(body: string | undefined, isUpdate: boolean): Promise<string | undefined> {
+        // Determine if we should generate release notes based on operation type
+        const shouldGenerateReleaseNotes = isUpdate 
+            ? this.inputs.generateReleaseNotes && !this.inputs.omitBodyDuringUpdate
+            : this.inputs.generateReleaseNotes
+
+        if (!shouldGenerateReleaseNotes) {
+            return body
+        }
+
+        const response = await this.releases.generateReleaseNotes(this.inputs.tag, this.inputs.generateReleaseNotesPreviousTag, this.inputs.commit)
+        const releaseNotes = response.data.body
+
+        if (!body || body.trim() === "") {
+            return releaseNotes
+        }
+
+        return `${body}\n${releaseNotes}`
+    }
+
+    private setOutputs(releaseData: any, assetUrls: Record<string, string>): void {
+        this.outputs.applyReleaseData(releaseData)
+        this.outputs.applyAssetUrls(assetUrls)
+    }
 }
--- a/src/ActionSkipper.ts
+++ b/src/ActionSkipper.ts
@@ -1,4 +1,4 @@
-import { Releases } from "./Releases"
+import { Releases } from "./Releases.js"

 export interface ActionSkipper {
    shouldSkip(): Promise<boolean>
--- a/src/ArtifactDestroyer.ts
+++ b/src/ArtifactDestroyer.ts
@@ -1,4 +1,4 @@
-import { Releases } from "./Releases"
+import { Releases } from "./Releases.js"
 import * as core from "@actions/core"

 export interface ArtifactDestroyer {
--- a/src/ArtifactGlobber.ts
+++ b/src/ArtifactGlobber.ts
@@ -1,9 +1,9 @@
 import * as core from "@actions/core"
-import { Globber, FileGlobber } from "./Globber"
-import { Artifact } from "./Artifact"
-import untildify from "untildify"
-import { ArtifactPathValidator } from "./ArtifactPathValidator"
-import { PathNormalizer } from "./PathNormalizer"
+import { Globber, FileGlobber } from "./Globber.js"
+import { Artifact } from "./Artifact.js"
+import { expandTilde } from "./PathExpander.js"
+import { ArtifactPathValidator } from "./ArtifactPathValidator.js"
+import { PathNormalizer } from "./PathNormalizer.js"

 export interface ArtifactGlobber {
    globArtifactString(artifact: string, contentType: string, errorsFailBuild: boolean): Artifact[]
@@ -55,6 +55,6 @@ export class FileArtifactGlobber implements ArtifactGlobber {
    }

    private static expandPath(path: string): string {
-        return untildify(path)
+        return expandTilde(path)
    }
 }
--- a/src/ArtifactUploader.ts
+++ b/src/ArtifactUploader.ts
@@ -1,6 +1,6 @@
 import * as core from "@actions/core"
-import { Artifact } from "./Artifact"
-import { Releases } from "./Releases"
+import { Artifact } from "./Artifact.js"
+import { Releases } from "./Releases.js"

 export interface ArtifactUploader {
    uploadArtifacts(artifacts: Artifact[], releaseId: number, uploadUrl: string): Promise<Record<string, string>>
--- a/src/GithubError.ts
+++ b/src/GithubError.ts
@@ -1,4 +1,4 @@
-import { GithubErrorDetail } from "./GithubErrorDetail"
+import { GithubErrorDetail } from "./GithubErrorDetail.js"

 export class GithubError {
    private error: any
--- a/src/Inputs.ts
+++ b/src/Inputs.ts
@@ -1,8 +1,8 @@
+import { readFileSync } from "node:fs"
 import * as core from "@actions/core"
-import { Context } from "@actions/github/lib/context"
-import { readFileSync } from "fs"
-import { ArtifactGlobber } from "./ArtifactGlobber"
-import { Artifact } from "./Artifact"
+import type * as github from "@actions/github"
+import type { Artifact } from "./Artifact.js"
+import type { ArtifactGlobber } from "./ArtifactGlobber.js"

 export interface Inputs {
    readonly allowUpdates: boolean
@@ -15,6 +15,8 @@ export interface Inputs {
    readonly createdReleaseName?: string
    readonly discussionCategory?: string
    readonly generateReleaseNotes: boolean
+    readonly generateReleaseNotesPreviousTag?: string
+    readonly immutableCreate: boolean
    readonly makeLatest?: "legacy" | "true" | "false" | undefined
    readonly omitBodyDuringUpdate: boolean
    readonly owner: string
@@ -33,16 +35,16 @@ export interface Inputs {

 export class CoreInputs implements Inputs {
    private artifactGlobber: ArtifactGlobber
-    private context: Context
+    private context: typeof github.context

-    constructor(artifactGlobber: ArtifactGlobber, context: Context) {
+    constructor(artifactGlobber: ArtifactGlobber, context: typeof github.context) {
        this.artifactGlobber = artifactGlobber
        this.context = context
    }

    get allowUpdates(): boolean {
        const allow = core.getInput("allowUpdates")
-        return allow == "true"
+        return allow === "true"
    }

    get artifacts(): Artifact[] {
@@ -62,7 +64,7 @@ export class CoreInputs implements Inputs {

    get artifactErrorsFailBuild(): boolean {
        const allow = core.getInput("artifactErrorsFailBuild")
-        return allow == "true"
+        return allow === "true"
    }

    private get body(): string | undefined {
@@ -81,12 +83,12 @@ export class CoreInputs implements Inputs {

    get createdDraft(): boolean {
        const draft = core.getInput("draft")
-        return draft == "true"
+        return draft === "true"
    }

    get createdPrerelease(): boolean {
        const preRelease = core.getInput("prerelease")
-        return preRelease == "true"
+        return preRelease === "true"
    }

    get createdReleaseBody(): string | undefined {
@@ -95,7 +97,7 @@ export class CoreInputs implements Inputs {
    }

    private static get omitBody(): boolean {
-        return core.getInput("omitBody") == "true"
+        return core.getInput("omitBody") === "true"
    }

    get createdReleaseName(): string | undefined {
@@ -104,7 +106,7 @@ export class CoreInputs implements Inputs {
    }

    private static get omitName(): boolean {
-        return core.getInput("omitName") == "true"
+        return core.getInput("omitName") === "true"
    }

    get commit(): string | undefined {
@@ -134,12 +136,22 @@ export class CoreInputs implements Inputs {

    get generateReleaseNotes(): boolean {
        const generate = core.getInput("generateReleaseNotes")
-        return generate == "true"
+        return generate === "true"
+    }
+
+    get generateReleaseNotesPreviousTag(): string | undefined {
+        const previousTag = core.getInput("generateReleaseNotesPreviousTag")
+        return previousTag || undefined
+    }
+
+    get immutableCreate(): boolean {
+        const immutable = core.getInput("immutableCreate")
+        return immutable === "true"
    }

    get makeLatest(): "legacy" | "true" | "false" | undefined {
-        let latest = core.getInput("makeLatest")
-        if (latest == "true" || latest == "false" || latest == "legacy") {
+        const latest = core.getInput("makeLatest")
+        if (latest === "true" || latest === "false" || latest === "legacy") {
            return latest
        }

@@ -147,7 +159,7 @@ export class CoreInputs implements Inputs {
    }

    get owner(): string {
-        let owner = core.getInput("owner")
+        const owner = core.getInput("owner")
        if (owner) {
            return owner
        }
@@ -156,16 +168,16 @@ export class CoreInputs implements Inputs {

    get removeArtifacts(): boolean {
        const removes = core.getInput("removeArtifacts")
-        return removes == "true"
+        return removes === "true"
    }

    get replacesArtifacts(): boolean {
        const replaces = core.getInput("replacesArtifacts")
-        return replaces == "true"
+        return replaces === "true"
    }

    get repo(): string {
-        let repo = core.getInput("repo")
+        const repo = core.getInput("repo")
        if (repo) {
            return repo
        }
@@ -184,7 +196,7 @@ export class CoreInputs implements Inputs {

        const ref = this.context.ref
        const tagPath = "refs/tags/"
-        if (ref && ref.startsWith(tagPath)) {
+        if (ref?.startsWith(tagPath)) {
            return ref.substr(tagPath.length, ref.length)
        }

@@ -201,7 +213,7 @@ export class CoreInputs implements Inputs {
    }

    private static get omitDraftDuringUpdate(): boolean {
-        return core.getInput("omitDraftDuringUpdate") == "true"
+        return core.getInput("omitDraftDuringUpdate") === "true"
    }

    get updatedPrerelease(): boolean | undefined {
@@ -210,7 +222,7 @@ export class CoreInputs implements Inputs {
    }

    private static get omitPrereleaseDuringUpdate(): boolean {
-        return core.getInput("omitPrereleaseDuringUpdate") == "true"
+        return core.getInput("omitPrereleaseDuringUpdate") === "true"
    }

    get updatedReleaseBody(): string | undefined {
@@ -219,7 +231,7 @@ export class CoreInputs implements Inputs {
    }

    get updateOnlyUnreleased(): boolean {
-        return core.getInput("updateOnlyUnreleased") == "true"
+        return core.getInput("updateOnlyUnreleased") === "true"
    }

    get updatedReleaseName(): string | undefined {
@@ -228,7 +240,7 @@ export class CoreInputs implements Inputs {
    }

    private static get omitBodyDuringUpdate(): boolean {
-        return core.getInput("omitBodyDuringUpdate") == "true"
+        return core.getInput("omitBodyDuringUpdate") === "true"
    }

    get omitBodyDuringUpdate(): boolean {
@@ -236,7 +248,7 @@ export class CoreInputs implements Inputs {
    }

    private static get omitNameDuringUpdate(): boolean {
-        return core.getInput("omitNameDuringUpdate") == "true"
+        return core.getInput("omitNameDuringUpdate") === "true"
    }

    stringFromFile(path: string): string {
--- a/src/Main.ts
+++ b/src/Main.ts
@@ -1,14 +1,14 @@
 import * as github from "@actions/github"
 import * as core from "@actions/core"
-import { CoreInputs } from "./Inputs"
-import { GithubReleases } from "./Releases"
-import { Action } from "./Action"
-import { GithubArtifactUploader } from "./ArtifactUploader"
-import { FileArtifactGlobber } from "./ArtifactGlobber"
-import { GithubError } from "./GithubError"
-import { CoreOutputs } from "./Outputs"
-import { GithubArtifactDestroyer } from "./ArtifactDestroyer"
-import { ActionSkipper, ReleaseActionSkipper } from "./ActionSkipper"
+import { CoreInputs } from "./Inputs.js"
+import { GithubReleases } from "./Releases.js"
+import { Action } from "./Action.js"
+import { GithubArtifactUploader } from "./ArtifactUploader.js"
+import { FileArtifactGlobber } from "./ArtifactGlobber.js"
+import { GithubError } from "./GithubError.js"
+import { CoreOutputs } from "./Outputs.js"
+import { GithubArtifactDestroyer } from "./ArtifactDestroyer.js"
+import { ActionSkipper, ReleaseActionSkipper } from "./ActionSkipper.js"

 async function run() {
    try {
--- a/src/Outputs.ts
+++ b/src/Outputs.ts
@@ -1,5 +1,5 @@
 import * as core from "@actions/core"
-import { ReleaseData } from "./Releases"
+import { ReleaseData } from "./Releases.js"

 export interface Outputs {
    applyReleaseData(releaseData: ReleaseData): void
--- a/src/PathExpander.ts
+++ b/src/PathExpander.ts
@@ -0,0 +1,6 @@
+import os from "os"
+
+export function expandTilde(path: string): string {
+    return path.replace(/^~(?=$|\/|\\)/, os.homedir())
+}
+
--- a/src/Releases.ts
+++ b/src/Releases.ts
@@ -1,7 +1,7 @@
-import type { GitHub } from "@actions/github/lib/utils"
+import * as github from "@actions/github"
 import type { RestEndpointMethodTypes } from "@octokit/plugin-rest-endpoint-methods"
 import type { OctokitResponse } from "@octokit/types"
-import type { Inputs } from "./Inputs"
+import type { Inputs } from "./Inputs.js"

 export type CreateReleaseResponse = RestEndpointMethodTypes["repos"]["createRelease"]["response"]
 export type ReleaseByTagResponse = RestEndpointMethodTypes["repos"]["getReleaseByTag"]["response"]
@@ -27,7 +27,6 @@ export interface Releases {
        commitHash?: string,
        discussionCategory?: string,
        draft?: boolean,
-        generateReleaseNotes?: boolean,
        makeLatest?: "legacy" | "true" | "false" | undefined,
        name?: string,
        prerelease?: boolean
@@ -37,7 +36,7 @@ export interface Releases {

    getByTag(tag: string): Promise<ReleaseByTagResponse>

-    generateReleaseNotes(tag: string): Promise<GenerateReleaseNotesResponse>
+    generateReleaseNotes(tag: string, previousTag?: string, targetCommitish?: string): Promise<GenerateReleaseNotesResponse>

    listArtifactsForRelease(releaseId: number): Promise<ListReleaseAssetsResponseData>

@@ -66,10 +65,10 @@ export interface Releases {
 }

 export class GithubReleases implements Releases {
-    git: InstanceType<typeof GitHub>
+    git: ReturnType<typeof github.getOctokit>
    inputs: Inputs

-    constructor(inputs: Inputs, git: InstanceType<typeof GitHub>) {
+    constructor(inputs: Inputs, git: ReturnType<typeof github.getOctokit>) {
        this.inputs = inputs
        this.git = git
    }
@@ -80,7 +79,6 @@ export class GithubReleases implements Releases {
        commitHash?: string,
        discussionCategory?: string,
        draft?: boolean,
-        generateReleaseNotes?: boolean,
        makeLatest?: "legacy" | "true" | "false" | undefined,
        name?: string,
        prerelease?: boolean
@@ -91,7 +89,6 @@ export class GithubReleases implements Releases {
            name: name,
            discussion_category_name: discussionCategory,
            draft: draft,
-            generate_release_notes: generateReleaseNotes,
            make_latest: makeLatest,
            owner: this.inputs.owner,
            prerelease: prerelease,
@@ -109,12 +106,22 @@ export class GithubReleases implements Releases {
        })
    }

-    async generateReleaseNotes(tag: string): Promise<GenerateReleaseNotesResponse> {
-        return this.git.rest.repos.generateReleaseNotes({
+    async generateReleaseNotes(tag: string, previousTag?: string, targetCommitish?: string): Promise<GenerateReleaseNotesResponse> {
+        const params: any = {
            owner: this.inputs.owner,
            repo: this.inputs.repo,
            tag_name: tag,
-        })
+        }
+
+        if (previousTag) {
+            params.previous_tag_name = previousTag
+        }
+
+        if (targetCommitish) {
+            params.target_commitish = targetCommitish
+        }
+
+        return this.git.rest.repos.generateReleaseNotes(params)
    }

    async getByTag(tag: string): Promise<ReleaseByTagResponse> {
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -4,10 +4,13 @@
        "module": "NodeNext",
        "moduleResolution": "NodeNext",
        "outDir": "./lib",
+        "rootDir": ".",
        "strict": true,
        "skipLibCheck": true,
        "noImplicitAny": true,
-        "esModuleInterop": true
+        "esModuleInterop": true,
+        "types": ["node"]
    },
-    "exclude": ["node_modules", "**/*.test.ts"]
+    "include": ["src/**/*"],
+    "exclude": ["node_modules", "**/*.test.ts", "__mocks__/**/*", "vitest.config.ts"]
 }
--- a/tsconfig.test.json
+++ b/tsconfig.test.json
@@ -0,0 +1,7 @@
+{
+    "extends": "./tsconfig.json",
+    "compilerOptions": {
+        "isolatedModules": true
+    },
+    "include": ["src/**/*", "__tests__/**/*"]
+}
--- a/vitest.config.ts
+++ b/vitest.config.ts
@@ -0,0 +1,21 @@
+import { defineConfig } from 'vitest/config'
+
+export default defineConfig({
+  test: {
+    globals: true,
+    environment: 'node',
+    include: ['**/*.test.ts'],
+    coverage: {
+      provider: 'v8',
+      reporter: ['text', 'lcov'],
+      include: ['src/**/*.ts'],
+      exclude: ['src/Globber.ts', 'src/Releases.ts'],
+      thresholds: {
+        lines: 100,
+        functions: 100,
+        branches: 95,
+        statements: 100,
+      },
+    },
+  },
+})
--- a/yarn.lock
+++ b/yarn.lock
Author	SHA1	Message	Date
Nick Cipollo	339a81892b	preparing release 1.21.0 Some checks failed Release / Create Release (push) Has been cancelled Details Test / check_pr (push) Has been cancelled Details	2026-03-14 16:42:44 -04:00
Nick Cipollo	df17233557	Resolve pnpm audit results - bump vitest - override undici	2026-03-14 16:36:59 -04:00
Nick Cipollo	813e942459	Update release script	2026-03-14 16:27:03 -04:00
Nick Cipollo	7df3a0e749	Update sheepit to use pnpm	2026-03-14 16:13:52 -04:00
Nick Cipollo	caacf56b56	Fixes #595 Bump to node 24	2026-03-11 08:37:45 -04:00
Nick Cipollo	c074b5e19f	Fixes #593 Pass commitish into release notes request when present (#594 )	2026-03-04 22:51:50 -05:00
dependabot[bot]	9e0366240f	Bump @biomejs/biome from 2.3.13 to 2.4.4 (#591 ) Bumps [@biomejs/biome](https://github.com/biomejs/biome/tree/HEAD/packages/@biomejs/biome) from 2.3.13 to 2.4.4. - [Release notes](https://github.com/biomejs/biome/releases) - [Changelog](https://github.com/biomejs/biome/blob/main/packages/@biomejs/biome/CHANGELOG.md) - [Commits](https://github.com/biomejs/biome/commits/@biomejs/biome@2.4.4/packages/@biomejs/biome) --- updated-dependencies: - dependency-name: "@biomejs/biome" dependency-version: 2.4.4 dependency-type: direct:development update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2026-03-04 16:43:14 -05:00
dependabot[bot]	5b4b1954b0	Bump glob from 13.0.0 to 13.0.6 (#592 ) Bumps [glob](https://github.com/isaacs/node-glob) from 13.0.0 to 13.0.6. - [Changelog](https://github.com/isaacs/node-glob/blob/main/changelog.md) - [Commits](https://github.com/isaacs/node-glob/compare/v13.0.0...v13.0.6) --- updated-dependencies: - dependency-name: glob dependency-version: 13.0.6 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2026-03-04 16:43:00 -05:00
Nick Cipollo	89bab4d0a7	debug build	2026-02-01 18:20:16 -05:00
dependabot[bot]	00cbfdc960	Bump @actions/github from 6.0.1 to 9.0.0 (#585 ) Bumps [@actions/github](https://github.com/actions/toolkit/tree/HEAD/packages/github) from 6.0.1 to 9.0.0. - [Changelog](https://github.com/actions/toolkit/blob/main/packages/github/RELEASES.md) - [Commits](https://github.com/actions/toolkit/commits/HEAD/packages/github) --- updated-dependencies: - dependency-name: "@actions/github" dependency-version: 9.0.0 dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2026-02-01 18:18:42 -05:00
Nick Cipollo	3f973430f2	Bump to core-3.0.0, move to vitest, support ESM modules (#587 )	2026-02-01 17:51:43 -05:00
dependabot[bot]	5b3313d377	Bump @types/node from 25.0.3 to 25.1.0 (#583 )	2026-02-01 09:22:25 -05:00
dependabot[bot]	7886be8054	Bump @biomejs/biome from 2.3.10 to 2.3.13 (#586 )	2026-02-01 08:40:16 -05:00
Nick Cipollo	411d95d6a3	Rebuild after bumping dependencies	2026-01-06 07:40:00 -05:00
dependabot[bot]	72a3e11e23	Bump @types/node from 24.10.1 to 25.0.3 (#580 ) Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 24.10.1 to 25.0.3. - [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases) - [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/node) --- updated-dependencies: - dependency-name: "@types/node" dependency-version: 25.0.3 dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2026-01-06 07:28:46 -05:00
dependabot[bot]	fc196c3dda	Bump @actions/core from 1.11.1 to 2.0.1 (#579 ) Bumps [@actions/core](https://github.com/actions/toolkit/tree/HEAD/packages/core) from 1.11.1 to 2.0.1. - [Changelog](https://github.com/actions/toolkit/blob/main/packages/core/RELEASES.md) - [Commits](https://github.com/actions/toolkit/commits/@actions/artifact@2.0.1/packages/core) --- updated-dependencies: - dependency-name: "@actions/core" dependency-version: 2.0.1 dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2026-01-06 07:28:36 -05:00
dependabot[bot]	788c17510f	Bump @biomejs/biome from 2.3.8 to 2.3.10 (#578 ) Bumps [@biomejs/biome](https://github.com/biomejs/biome/tree/HEAD/packages/@biomejs/biome) from 2.3.8 to 2.3.10. - [Release notes](https://github.com/biomejs/biome/releases) - [Changelog](https://github.com/biomejs/biome/blob/main/packages/@biomejs/biome/CHANGELOG.md) - [Commits](https://github.com/biomejs/biome/commits/@biomejs/biome@2.3.10/packages/@biomejs/biome) --- updated-dependencies: - dependency-name: "@biomejs/biome" dependency-version: 2.3.10 dependency-type: direct:development update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2026-01-06 07:27:42 -05:00
dependabot[bot]	93682e08f2	Bump @octokit/types from 13.10.0 to 16.0.0 (#577 ) Bumps [@octokit/types](https://github.com/octokit/types.ts) from 13.10.0 to 16.0.0. - [Release notes](https://github.com/octokit/types.ts/releases) - [Commits](https://github.com/octokit/types.ts/compare/v13.10.0...v16.0.0) --- updated-dependencies: - dependency-name: "@octokit/types" dependency-version: 16.0.0 dependency-type: direct:development update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2026-01-06 07:27:27 -05:00
Nick Cipollo	5f55df31e1	Fixes #552 Add missing readme entry for generateReleaseNotesPreviousTag	2025-12-06 11:05:53 -05:00
Nick Cipollo	be9a4fac3a	Remove untildify	2025-12-02 08:29:48 -05:00
Nick Cipollo	23d2cc4c27	Bump jest types	2025-12-02 07:42:05 -05:00
dependabot[bot]	c15e4e52f5	Bump glob from 11.1.0 to 13.0.0 (#573 ) Bumps [glob](https://github.com/isaacs/node-glob) from 11.1.0 to 13.0.0. - [Changelog](https://github.com/isaacs/node-glob/blob/main/changelog.md) - [Commits](https://github.com/isaacs/node-glob/compare/v11.1.0...v13.0.0) --- updated-dependencies: - dependency-name: glob dependency-version: 13.0.0 dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2025-12-02 07:39:42 -05:00
dependabot[bot]	b9387a1970	Bump @biomejs/biome from 2.3.2 to 2.3.8 (#575 ) Bumps [@biomejs/biome](https://github.com/biomejs/biome/tree/HEAD/packages/@biomejs/biome) from 2.3.2 to 2.3.8. - [Release notes](https://github.com/biomejs/biome/releases) - [Changelog](https://github.com/biomejs/biome/blob/main/packages/@biomejs/biome/CHANGELOG.md) - [Commits](https://github.com/biomejs/biome/commits/@biomejs/biome@2.3.8/packages/@biomejs/biome) --- updated-dependencies: - dependency-name: "@biomejs/biome" dependency-version: 2.3.8 dependency-type: direct:development update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2025-12-02 07:39:13 -05:00
Nick Cipollo	327ba10342	Fix phantom dependencies	2025-12-01 20:21:27 -05:00
Nick Cipollo	5e58a022dc	Migrate form yarn to pnpm	2025-12-01 20:07:09 -05:00
Nick Cipollo	7ffaa93f91	Install dependencies	2025-12-01 18:10:32 -05:00
Nick Cipollo	c266243d9d	Bump glob dependencies	2025-11-24 10:59:40 -05:00
dependabot[bot]	29d665a1e2	Bump actions/checkout from 5 to 6 (#569 )	2025-11-23 12:07:31 -05:00
dependabot[bot]	8c0975efae	Bump glob from 11.0.3 to 11.1.0 (#568 )	2025-11-17 19:49:35 -05:00
dependabot[bot]	015a5adb5c	Bump js-yaml from 3.14.1 to 3.14.2 (#567 )	2025-11-17 15:28:39 -05:00
dependabot[bot]	73edeebfa1	Bump @types/node from 24.6.1 to 24.9.2 (#563 )	2025-11-02 09:48:05 -05:00
dependabot[bot]	cacc3525a9	Bump @biomejs/biome from 1.9.4 to 2.3.2 (#564 )	2025-11-02 09:45:38 -05:00
dependabot[bot]	0dda22e486	Bump ts-jest from 29.3.4 to 29.4.5 (#561 )	2025-11-02 09:44:33 -05:00
dependabot[bot]	e00665902f	Bump actions/setup-node from 5 to 6 (#559 )	2025-11-02 09:44:21 -05:00
dependabot[bot]	a0e7822741	Bump @types/node from 22.15.29 to 24.6.1 (#555 ) Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 22.15.29 to 24.6.1. - [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases) - [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/node) --- updated-dependencies: - dependency-name: "@types/node" dependency-version: 24.6.1 dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2025-10-01 10:51:17 -04:00
dependabot[bot]	206b0f552d	Bump actions/setup-node from 4 to 5 (#551 ) Bumps [actions/setup-node](https://github.com/actions/setup-node) from 4 to 5. - [Release notes](https://github.com/actions/setup-node/releases) - [Commits](https://github.com/actions/setup-node/compare/v4...v5) --- updated-dependencies: - dependency-name: actions/setup-node dependency-version: '5' dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2025-10-01 10:50:49 -04:00
dependabot[bot]	fb82a3ec11	Bump typescript from 5.8.3 to 5.9.3 (#556 ) Bumps [typescript](https://github.com/microsoft/TypeScript) from 5.8.3 to 5.9.3. - [Release notes](https://github.com/microsoft/TypeScript/releases) - [Changelog](https://github.com/microsoft/TypeScript/blob/main/azure-pipelines.release-publish.yml) - [Commits](https://github.com/microsoft/TypeScript/compare/v5.8.3...v5.9.3) --- updated-dependencies: - dependency-name: typescript dependency-version: 5.9.3 dependency-type: direct:development update-type: version-update:semver-minor ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2025-10-01 10:49:10 -04:00
dependabot[bot]	4207a7677e	Bump jest-circus from 29.7.0 to 30.2.0 (#557 )	2025-10-01 09:28:00 -04:00
Nick Cipollo	b7eabc95ff	preparing release 1.20.0 Some checks failed Test / check_pr (push) Has been cancelled Details Release / Create Release (push) Has been cancelled Details	2025-09-02 16:01:27 -04:00
Nick Cipollo	e87de4c2e4	Fixes #542 Add previous tag option (#550 )	2025-09-02 15:56:40 -04:00
Nick Cipollo	98d25d4189	preparing release 1.19.2 Some checks failed Release / Create Release (push) Has been cancelled Details Test / check_pr (push) Has been cancelled Details	2025-09-02 12:53:03 -04:00
Nick Cipollo	d3601261f8	Fixes #548 Add support body + generated release notes (#549 )	2025-09-02 12:27:56 -04:00
Benoît Blanchon	571fe81601	Update `immutableCreate`'s default in the documentation (#547 ) The default of `immutableCreate` changed from `true` to `false` in version 1.9.1	2025-09-02 08:11:01 -04:00
Nick Cipollo	1c89adf398	preparing release 1.19.1 Some checks failed Release / Create Release (push) Has been cancelled Details Test / check_pr (push) Has been cancelled Details	2025-09-01 12:57:13 -04:00
Nick Cipollo	36bf8dd70f	References #545 Default immutable builds to false	2025-09-01 12:47:09 -04:00
Nick Cipollo	b12185d71f	preparing release 1.19.0 Some checks failed Release / Create Release (push) Has been cancelled Details Test / check_pr (push) Has been cancelled Details	2025-09-01 10:28:36 -04:00
Nick Cipollo	defcf131e4	Fixes #540 Add support for immutable releases (#544 )	2025-08-28 13:15:38 -04:00
Nick Cipollo	05013d58ed	Standardize on separate call to generate release notes	2025-08-21 20:33:00 -04:00
dependabot[bot]	20ce211d17	Bump glob from 11.0.2 to 11.0.3 (#534 ) Bumps [glob](https://github.com/isaacs/node-glob) from 11.0.2 to 11.0.3. - [Changelog](https://github.com/isaacs/node-glob/blob/main/changelog.md) - [Commits](https://github.com/isaacs/node-glob/compare/v11.0.2...v11.0.3) --- updated-dependencies: - dependency-name: glob dependency-version: 11.0.3 dependency-type: direct:production update-type: version-update:semver-patch ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2025-08-17 16:53:58 -04:00
dependabot[bot]	a262ce99ce	Bump actions/checkout from 4 to 5 (#541 ) Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 5. - [Release notes](https://github.com/actions/checkout/releases) - [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md) - [Commits](https://github.com/actions/checkout/compare/v4...v5) --- updated-dependencies: - dependency-name: actions/checkout dependency-version: '5' dependency-type: direct:production update-type: version-update:semver-major ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2025-08-17 16:53:46 -04:00