chore(deploy): Release v26.12.1 (electron-updater@6.8.7) (#9782)

Author: electron-builder-release-bot[bot]

.changeset/few-falcons-grin.md

@@ -1,3 +1,15 @@
+## [26.12.1](https://github.com/electron-userland/electron-builder/compare/electron-builder@26.12.0...electron-builder@26.12.1) (2026-05-30)
+
+
+### Bug Fixes
+
+* **codeql:** resolving GH CodeQL alerts ([#9783](https://github.com/electron-userland/electron-builder/issues/9783)) ([4866737](https://github.com/electron-userland/electron-builder/commit/4866737e4fe1f0cca210d318b9ce440f8e978a63))
+* harden generated-file output, argument construction, and download validation ([#9778](https://github.com/electron-userland/electron-builder/issues/9778)) ([d6a5aee](https://github.com/electron-userland/electron-builder/commit/d6a5aee821138449dc0c082606da6a1bf5ba0798))
+* **nsis:** `nsisEscapeString` incorrectly converting INSTDIR runtime var to double-$$ ([#9788](https://github.com/electron-userland/electron-builder/issues/9788)) ([3f4f773](https://github.com/electron-userland/electron-builder/commit/3f4f773970db92d8fbac31cbc90dfaa0cd08d2f1))
+* refactor mac/mas/mas-dev logic flows within MacPackager ([#9567](https://github.com/electron-userland/electron-builder/issues/9567)) ([2c4cfa4](https://github.com/electron-userland/electron-builder/commit/2c4cfa405303fe67008cce2d95a2645014e8e8e2))
+
+
+
 # [26.12.0](https://github.com/electron-userland/electron-builder/compare/electron-builder@26.11.1...electron-builder@26.12.0) (2026-05-29)
 
 

.changeset/fuzzy-birds-train.md

@@ -1,5 +1,31 @@
 # app-builder-lib
 
+## 26.12.1
+
+### Patch Changes
+
+- Fix: harden generated-file output, argument construction, and download validation _[`#9778`](https://github.com/electron-userland/electron-builder/pull/9778) [`d6a5aee`](https://github.com/electron-userland/electron-builder/commit/d6a5aee821138449dc0c082606da6a1bf5ba0798) [@mmaietta](https://github.com/mmaietta)_
+- Fix: `nsisEscapeString` incorrectly converting INSTDIR runtime var to double-$$ _[`#9788`](https://github.com/electron-userland/electron-builder/pull/9788) [`3f4f773`](https://github.com/electron-userland/electron-builder/commit/3f4f773970db92d8fbac31cbc90dfaa0cd08d2f1) [@mmaietta](https://github.com/mmaietta)_
+- Fix: properly parse and pass through `mas` configs to overwrite `mac` config when target is `mas` or `mas-dev` _[`#9567`](https://github.com/electron-userland/electron-builder/pull/9567) [`2c4cfa4`](https://github.com/electron-userland/electron-builder/commit/2c4cfa405303fe67008cce2d95a2645014e8e8e2) [@mmaietta](https://github.com/mmaietta)_
+- Fix(codeql): resolving GH CodeQL alerts _[`#9783`](https://github.com/electron-userland/electron-builder/pull/9783) [`4866737`](https://github.com/electron-userland/electron-builder/commit/4866737e4fe1f0cca210d318b9ce440f8e978a63) [@mmaietta](https://github.com/mmaietta)_
+- Chore: provide better error messaging when electron version in devDependencies or electronVersion property are not pinned _[`#9785`](https://github.com/electron-userland/electron-builder/pull/9785) [`f9ecb3c`](https://github.com/electron-userland/electron-builder/commit/f9ecb3c3f985ec999c3c8ba07e6054b0611284b6) [@mmaietta](https://github.com/mmaietta)_
+
+<details><summary>Updated 5 dependencies</summary>
+
+<small>
+
+[`d6a5aee`](https://github.com/electron-userland/electron-builder/commit/d6a5aee821138449dc0c082606da6a1bf5ba0798) [`4866737`](https://github.com/electron-userland/electron-builder/commit/4866737e4fe1f0cca210d318b9ce440f8e978a63)
+
+</small>
+
+- `builder-util-runtime@9.6.2`
+- `builder-util@26.12.1`
+- `dmg-builder@26.12.1`
+- `electron-builder-squirrel-windows@26.12.1`
+- `electron-publish@26.12.1`
+
+</details>
+
 ## 26.12.0
 
 ### Minor Changes

.changeset/six-rice-knock.md

@@ -1,7 +1,7 @@
 {
   "name": "app-builder-lib",
   "description": "electron-builder lib",
-  "version": "26.12.0",
+  "version": "26.12.1",
   "main": "out/index.js",
   "files": [
     "out",

.changeset/sweet-worlds-study.md

@@ -1,7 +1,21 @@
 import { SignOptions } from "@electron/osx-sign/dist/cjs/types"
 import { Identity } from "@electron/osx-sign/dist/cjs/util-identities"
 import { makeUniversalApp } from "@electron/universal"
-import { Arch, AsyncTaskManager, copyFile, deepAssign, exec, exists, getArchSuffix, InvalidConfigurationError, log, orIfFileNotExist, sanitizeDirPath, unlinkIfExists, use } from "builder-util"
+import {
+  Arch,
+  AsyncTaskManager,
+  copyFile,
+  deepAssign,
+  exec,
+  exists,
+  getArchSuffix,
+  InvalidConfigurationError,
+  log,
+  orIfFileNotExist,
+  sanitizeDirPath,
+  unlinkIfExists,
+  use,
+} from "builder-util"
 import { MemoLazy, Nullish } from "builder-util-runtime"
 import * as fs from "fs/promises"
 import { mkdir, readdir } from "fs/promises"

.changeset/wild-roses-carry.md

@@ -1 +1 @@
-export const PACKAGE_VERSION = "26.12.0"
+export const PACKAGE_VERSION = "26.12.1"