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feat: add app shims on macOS - #55073
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* feat: add app shims on macOS An app shim is a small app, in a bundle of its own, that shows windows on behalf of a host Electron app. The host still creates each window, loads its page and handles its events, but the NSWindow belongs to the shim's process, so the Dock, the app switcher, Mission Control and Stage Manager attribute the window to the shim and not to the host. - `app.startAppShimServer()` / `app.stopAppShimServer()` and the `app-shim-connected` event, which hands over an `AppShimHost`. - A `BaseWindow` / `BrowserWindow` created with the `appShim` option has its native window made in that shim's process, through Chromium's remote_cocoa. Such a window is a new NativeWindow implementation that only goes through views::Widget; what remote_cocoa has no call for is a no-op (see docs/api/app-shim-host.md). - The shim's executable is `Helpers/app_shim_loader` from the framework bundle. It links nothing from Electron: it loads the host's framework and calls the new `ElectronAppShimMain` export, which runs an `app-shim` process that connects back to the host over a Mach bootstrap server. - Electron Framework gains an rpath to the folder it is in, so that it finds its sibling frameworks when an executable in another bundle loads it. Not available in Mac App Store builds. Co-Authored-By: Claude <[email protected]> * feat: app shim menus, dialogs, window chrome and review fixes Follow-up to the first app shim commit. Fixes from review: - A window torn down from one of its own listeners (shim.quit() or win.destroy() in `show`) no longer frees the native host that is notifying. - The native close button no longer leaves the shim waiting on an answer that was dropped with the window. - Keys the page does not handle go back to the shim, whose menu they are shortcuts of, and not to the host's menu. - stopAppShimServer() drops shims that have connected and not said hello. - Quitting a shim asks the host without blocking and without cancelling a logout; quit-requested can now be answered with "no". - Size limits and useContentSize are in content sizes; restore() and unmaximize() each do one thing; webContents.isFocused() works. New: - shim.setMenu(): a menu bar of the shim's own, built in the shim from a description of the Menu, with clicks sent back. - Message boxes and open and save dialogs are sheets of the window in the shim's process. - titleBarStyle, traffic light position and visibility, vibrancy, tabs and Quick Look, applied in the shim to the NSWindow that remote_cocoa made. - A Chromium patch for what remote_cocoa has no call for: movable, closable, minimizable and fullscreenable, clearing an aspect ratio, and yielding activation to the hosting process by pid. - A shim that loaded another build of Electron than the running host tells the host and quits: app-shim-version-mismatch. The API is marked experimental in the docs. Co-Authored-By: Claude <[email protected]> * fix: address review of app shims - A window in an app shim can't be given a parent, at construction or with setParentWindow(), as the docs say. - shim.setMenu() is now shim.setApplicationMenu(). - A message box that is showing under an id makes way for a new one with that id, whichever process shows it. - Mac App Store builds no longer export the shim's entry point; they already had no loader. - setProgressBar() and setHasShadow() are listed among what does nothing on a window in a shim. - The spec no longer asserts inside an event listener. Co-Authored-By: Claude <[email protected]> * fix: clang-tidy findings in app shim code * docs: reword the app shim docs for clarity * chore: update patches Re-exported after rebasing onto Chromium 158.0.8105.0; only line offsets changed. Co-Authored-By: Claude <[email protected]> * test: use vitest matchers in the app shim spec --------- Co-authored-by: Claude <[email protected]> (cherry picked from commit 0edcdc4)
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October 16, 2026 21:07
Re-exported against this branch's Chromium (152.0.7977.167); only line offsets and index hashes changed. Co-Authored-By: Claude <[email protected]>
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Oct 16, 2026
The app shim code was written against two refactors that this branch does not have, so it did not compile here. - ElectronMenuModel is still a ui::SimpleMenuModel on this branch. The shim's menu now fills such a model and answers for its items as the model's delegate, by command id, instead of handing it item objects. - There is no NativePeer helper on this branch. The native half of an AppShimHost is owned through a deleter that posts its deletion to the UI thread, refers to its wrapper weakly, and is torn down before the isolate goes away as a gin::PerIsolateData::DisposeObserver. - NativeWindow::ClampOpacity() does not exist here; clamp in place, as NativeWindowMac does. Co-Authored-By: Claude <[email protected]>
On this branch a gin_helper::Promise holds its isolate, and As() moves the promise, isolate included. OpenDialogCompletion converted the promise and read its isolate in the same call, so the isolate could already be null and resolving an open dialog crashed. Co-Authored-By: Claude <[email protected]>
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##### [v44.9.0](https://github.com/electron/electron/releases/tag/v44.9.0) ### Release Notes for v44.9.0 #### Features - Added app shims on macOS to show windows under another app's Dock icon. [#55073](electron/electron#55073) <sup>(Also in [45](https://github.com/electron/electron/pull/55072))</sup> #### Fixes - Fixed link-opened windows not using the opener's session and `webPreferences`. [#55048](electron/electron#55048) <sup>(Also in [42](electron/electron#55050), [43](electron/electron#55049), [45](https://github.com/electron/electron/pull/55051))</sup> - Fixed `setCertificateVerifyProc` occasionally not being applied to a request issued concurrently with the first request to a host. [#55046](electron/electron#55046) <sup>(Also in [42](electron/electron#55054), [43](electron/electron#55047), [45](https://github.com/electron/electron/pull/55045))</sup> ##### [v44.8.0](https://github.com/electron/electron/releases/tag/v44.8.0) ### Release Notes for v44.8.0 #### Features - Added support for `Notification` action buttons on Linux. [#54890](electron/electron#54890) <sup>(Also in [45](https://github.com/electron/electron/pull/54889))</sup> #### Fixes - Fixed mouse cursor missing over native dialogs in certain scenarios on Windows. [#54987](electron/electron#54987) - Fixed `net.fetch` and `session.fetch` failing permanently with `net::ERR_FAILED` after the Network Service process restarts. [#54909](electron/electron#54909) <sup>(Also in [42](electron/electron#54925), [43](electron/electron#54908), [45](https://github.com/electron/electron/pull/54910))</sup> - Fixed `utilityProcess` dropping messages posted with `process.parentPort.postMessage()` right before the process exits. [#54960](electron/electron#54960) <sup>(Also in [42](electron/electron#55000), [43](electron/electron#54962), [45](https://github.com/electron/electron/pull/54956))</sup> - Fixed `win.isFullScreen()` being stale in fullscreen events on Windows. [#55009](electron/electron#55009) <sup>(Also in [45](https://github.com/electron/electron/pull/55008))</sup> #### Other Changes - Backported fixes from upstream Chromium and V8. [#55034](electron/electron#55034) - Updated Chromium to 152.0.7977.167. [#54928](electron/electron#54928) - Updated Node.js to v24.22.0. [#55004](electron/electron#55004) ##### [v44.7.2](https://github.com/electron/electron/releases/tag/v44.7.2) ### Release Notes for v44.7.2 #### Fixes - Fixed an issue where clicks posted to a background app were dropped on macOS. [#54819](electron/electron#54819) <sup>(Also in [45](https://github.com/electron/electron/pull/54818))</sup> - Fixed interrupted macOS updates leaving a broken app behind. [#54844](electron/electron#54844) <sup>(Also in [45](https://github.com/electron/electron/pull/54843))</sup> #### Other Changes - Backported fixes from upstream ANGLE, Chromium, PDFium and V8. [#54898](electron/electron#54898) #### Documentation - Documentation changes: [#54880](electron/electron#54880) ##### [v44.7.1](https://github.com/electron/electron/releases/tag/v44.7.1) ### Release Notes for v44.7.1 #### Fixes - Fixed a crash when starting without an available display server on Linux. [#54794](electron/electron#54794) <sup>(Also in [45](https://github.com/electron/electron/pull/54781))</sup> - Fixed a Linux crash creating a window with a menu bar when GTK failed to load. [#54859](electron/electron#54859) <sup>(Also in [45](https://github.com/electron/electron/pull/54846))</sup> - Fixed a `WebContentsView` that was removed with `removeChildView()` and re-added with `addChildView()` staying hidden behind its sibling views on Linux. [#54798](electron/electron#54798) - Fixed asar archives in non-ASCII folders failing to load on Linux. [#54849](electron/electron#54849) <sup>(Also in [45](https://github.com/electron/electron/pull/54848))</sup> - Fixed renderer crashes during garbage collection inside ShadowRealms. [#54865](electron/electron#54865) <sup>(Also in [45](https://github.com/electron/electron/pull/54864))</sup> #### Other Changes - Refactored mouse forwarding on Windows to fix `setIgnoreMouseEvents(true, { forward: true })` related issues. [#54802](electron/electron#54802) <sup>(Also in [45](https://github.com/electron/electron/pull/54803))</sup> - Updated Chromium to 152.0.7977.149. [#54085](electron/electron#54085) ##### [v44.7.0](https://github.com/electron/electron/releases/tag/v44.7.0) ### Release Notes for v44.7.0 #### Features - The macOS `autoUpdater` now streams update downloads to disk, resumes an interrupted download on the next check instead of starting over, and applies a binary delta when the update feed offers one for the running version. [#54204](electron/electron#54204) #### Fixes - Fixed an uncatchable TypeError in `net.fetch` when receiving response headers with non-ASCII characters, and preserved multiple Set-Cookie headers. [#54672](electron/electron#54672) #### Other Changes - Backported fixes from upstream ANGLE, Chromium, Dawn, fontconfig, Skia, V8 and WebRTC. [#54666](electron/electron#54666) - Backported fixes from upstream ANGLE, Chromium, Skia, V8 and WebRTC. [#54657](electron/electron#54657) ##### [v44.6.0](https://github.com/electron/electron/releases/tag/v44.6.0) ### Release Notes for v44.6.0 #### Features - Added the experimental `protocol.registerSource()` to serve a custom scheme from directories on disk without a JavaScript handler. [#54522](electron/electron#54522) <sup>(Also in [45](https://github.com/electron/electron/pull/54521))</sup> #### Fixes - Fixed a crash on launch on macOS when the system refused to register the app for sleep/wake notifications. [#54596](electron/electron#54596) - Fixed a crash on `navigator.usb.requestDevice()` in in-memory sessions. [#54616](electron/electron#54616) <sup>(Also in [45](https://github.com/electron/electron/pull/54615))</sup> - Fixed `webview.findInPage()` hanging when the host page also has an iframe. [#54586](electron/electron#54586) <sup>(Also in [43](electron/electron#54584), [45](https://github.com/electron/electron/pull/54585))</sup> - Updated time zone data to tzdata 2026d, including British Columbia's move to permanent UTC-7. [#54623](electron/electron#54623) #### Documentation - Documentation changes: [#54589](electron/electron#54589)
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##### [v44.9.0](https://github.com/electron/electron/releases/tag/v44.9.0) ### Release Notes for v44.9.0 #### Features - Added app shims on macOS to show windows under another app's Dock icon. [#55073](electron/electron#55073) <sup>(Also in [45](https://github.com/electron/electron/pull/55072))</sup> #### Fixes - Fixed link-opened windows not using the opener's session and `webPreferences`. [#55048](electron/electron#55048) <sup>(Also in [42](electron/electron#55050), [43](electron/electron#55049), [45](https://github.com/electron/electron/pull/55051))</sup> - Fixed `setCertificateVerifyProc` occasionally not being applied to a request issued concurrently with the first request to a host. [#55046](electron/electron#55046) <sup>(Also in [42](electron/electron#55054), [43](electron/electron#55047), [45](https://github.com/electron/electron/pull/55045))</sup> ##### [v44.8.0](https://github.com/electron/electron/releases/tag/v44.8.0) ### Release Notes for v44.8.0 #### Features - Added support for `Notification` action buttons on Linux. [#54890](electron/electron#54890) <sup>(Also in [45](https://github.com/electron/electron/pull/54889))</sup> #### Fixes - Fixed mouse cursor missing over native dialogs in certain scenarios on Windows. [#54987](electron/electron#54987) - Fixed `net.fetch` and `session.fetch` failing permanently with `net::ERR_FAILED` after the Network Service process restarts. [#54909](electron/electron#54909) <sup>(Also in [42](electron/electron#54925), [43](electron/electron#54908), [45](https://github.com/electron/electron/pull/54910))</sup> - Fixed `utilityProcess` dropping messages posted with `process.parentPort.postMessage()` right before the process exits. [#54960](electron/electron#54960) <sup>(Also in [42](electron/electron#55000), [43](electron/electron#54962), [45](https://github.com/electron/electron/pull/54956))</sup> - Fixed `win.isFullScreen()` being stale in fullscreen events on Windows. [#55009](electron/electron#55009) <sup>(Also in [45](https://github.com/electron/electron/pull/55008))</sup> #### Other Changes - Backported fixes from upstream Chromium and V8. [#55034](electron/electron#55034) - Updated Chromium to 152.0.7977.167. [#54928](electron/electron#54928) - Updated Node.js to v24.22.0. [#55004](electron/electron#55004) ##### [v44.7.2](https://github.com/electron/electron/releases/tag/v44.7.2) ### Release Notes for v44.7.2 #### Fixes - Fixed an issue where clicks posted to a background app were dropped on macOS. [#54819](electron/electron#54819) <sup>(Also in [45](https://github.com/electron/electron/pull/54818))</sup> - Fixed interrupted macOS updates leaving a broken app behind. [#54844](electron/electron#54844) <sup>(Also in [45](https://github.com/electron/electron/pull/54843))</sup> #### Other Changes - Backported fixes from upstream ANGLE, Chromium, PDFium and V8. [#54898](electron/electron#54898) #### Documentation - Documentation changes: [#54880](electron/electron#54880) ##### [v44.7.1](https://github.com/electron/electron/releases/tag/v44.7.1) ### Release Notes for v44.7.1 #### Fixes - Fixed a crash when starting without an available display server on Linux. [#54794](electron/electron#54794) <sup>(Also in [45](https://github.com/electron/electron/pull/54781))</sup> - Fixed a Linux crash creating a window with a menu bar when GTK failed to load. [#54859](electron/electron#54859) <sup>(Also in [45](https://github.com/electron/electron/pull/54846))</sup> - Fixed a `WebContentsView` that was removed with `removeChildView()` and re-added with `addChildView()` staying hidden behind its sibling views on Linux. [#54798](electron/electron#54798) - Fixed asar archives in non-ASCII folders failing to load on Linux. [#54849](electron/electron#54849) <sup>(Also in [45](https://github.com/electron/electron/pull/54848))</sup> - Fixed renderer crashes during garbage collection inside ShadowRealms. [#54865](electron/electron#54865) <sup>(Also in [45](https://github.com/electron/electron/pull/54864))</sup> #### Other Changes - Refactored mouse forwarding on Windows to fix `setIgnoreMouseEvents(true, { forward: true })` related issues. [#54802](electron/electron#54802) <sup>(Also in [45](https://github.com/electron/electron/pull/54803))</sup> - Updated Chromium to 152.0.7977.149. [#54085](electron/electron#54085) ##### [v44.7.0](https://github.com/electron/electron/releases/tag/v44.7.0) ### Release Notes for v44.7.0 #### Features - The macOS `autoUpdater` now streams update downloads to disk, resumes an interrupted download on the next check instead of starting over, and applies a binary delta when the update feed offers one for the running version. [#54204](electron/electron#54204) #### Fixes - Fixed an uncatchable TypeError in `net.fetch` when receiving response headers with non-ASCII characters, and preserved multiple Set-Cookie headers. [#54672](electron/electron#54672) #### Other Changes - Backported fixes from upstream ANGLE, Chromium, Dawn, fontconfig, Skia, V8 and WebRTC. [#54666](electron/electron#54666) - Backported fixes from upstream ANGLE, Chromium, Skia, V8 and WebRTC. [#54657](electron/electron#54657) ##### [v44.6.0](https://github.com/electron/electron/releases/tag/v44.6.0) ### Release Notes for v44.6.0 #### Features - Added the experimental `protocol.registerSource()` to serve a custom scheme from directories on disk without a JavaScript handler. [#54522](electron/electron#54522) <sup>(Also in [45](https://github.com/electron/electron/pull/54521))</sup> #### Fixes - Fixed a crash on launch on macOS when the system refused to register the app for sleep/wake notifications. [#54596](electron/electron#54596) - Fixed a crash on `navigator.usb.requestDevice()` in in-memory sessions. [#54616](electron/electron#54616) <sup>(Also in [45](https://github.com/electron/electron/pull/54615))</sup> - Fixed `webview.findInPage()` hanging when the host page also has an iframe. [#54586](electron/electron#54586) <sup>(Also in [43](electron/electron#54584), [45](https://github.com/electron/electron/pull/54585))</sup> - Updated time zone data to tzdata 2026d, including British Columbia's move to permanent UTC-7. [#54623](electron/electron#54623) #### Documentation - Documentation changes: [#54589](electron/electron#54589)
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##### [v44.9.3](https://github.com/electron/electron/releases/tag/v44.9.3) ### Release Notes for v44.9.3 #### Other Changes - Backported fixes from upstream ANGLE, Chromium, PDFium, Skia and V8. [#55149](electron/electron#55149) ##### [v44.9.2](https://github.com/electron/electron/releases/tag/v44.9.2) ### Release Notes for v44.9.2 ##### [v44.9.1](https://github.com/electron/electron/releases/tag/v44.9.1) ### Release Notes for v44.9.1 > \[!NOTE] > This release contains the fix for <GHSA-jr5w-w6x2-84p9>, the mitigation for compromised eMudhra intermediate certificates ##### [v44.9.0](https://github.com/electron/electron/releases/tag/v44.9.0) ### Release Notes for v44.9.0 #### Features - Added app shims on macOS to show windows under another app's Dock icon. [#55073](electron/electron#55073) <sup>(Also in [45](https://github.com/electron/electron/pull/55072))</sup> #### Fixes - Fixed link-opened windows not using the opener's session and `webPreferences`. [#55048](electron/electron#55048) <sup>(Also in [42](electron/electron#55050), [43](electron/electron#55049), [45](https://github.com/electron/electron/pull/55051))</sup> - Fixed `setCertificateVerifyProc` occasionally not being applied to a request issued concurrently with the first request to a host. [#55046](electron/electron#55046) <sup>(Also in [42](electron/electron#55054), [43](electron/electron#55047), [45](https://github.com/electron/electron/pull/55045))</sup> ##### [v44.8.0](https://github.com/electron/electron/releases/tag/v44.8.0) ### Release Notes for v44.8.0 #### Features - Added support for `Notification` action buttons on Linux. [#54890](electron/electron#54890) <sup>(Also in [45](https://github.com/electron/electron/pull/54889))</sup> #### Fixes - Fixed mouse cursor missing over native dialogs in certain scenarios on Windows. [#54987](electron/electron#54987) - Fixed `net.fetch` and `session.fetch` failing permanently with `net::ERR_FAILED` after the Network Service process restarts. [#54909](electron/electron#54909) <sup>(Also in [42](electron/electron#54925), [43](electron/electron#54908), [45](https://github.com/electron/electron/pull/54910))</sup> - Fixed `utilityProcess` dropping messages posted with `process.parentPort.postMessage()` right before the process exits. [#54960](electron/electron#54960) <sup>(Also in [42](electron/electron#55000), [43](electron/electron#54962), [45](https://github.com/electron/electron/pull/54956))</sup> - Fixed `win.isFullScreen()` being stale in fullscreen events on Windows. [#55009](electron/electron#55009) <sup>(Also in [45](https://github.com/electron/electron/pull/55008))</sup> #### Other Changes - Backported fixes from upstream Chromium and V8. [#55034](electron/electron#55034) - Updated Chromium to 152.0.7977.167. [#54928](electron/electron#54928) - Updated Node.js to v24.22.0. [#55004](electron/electron#55004) ##### [v44.7.2](https://github.com/electron/electron/releases/tag/v44.7.2) ### Release Notes for v44.7.2 #### Fixes - Fixed an issue where clicks posted to a background app were dropped on macOS. [#54819](electron/electron#54819) <sup>(Also in [45](https://github.com/electron/electron/pull/54818))</sup> - Fixed interrupted macOS updates leaving a broken app behind. [#54844](electron/electron#54844) <sup>(Also in [45](https://github.com/electron/electron/pull/54843))</sup> #### Other Changes - Backported fixes from upstream ANGLE, Chromium, PDFium and V8. [#54898](electron/electron#54898) #### Documentation - Documentation changes: [#54880](electron/electron#54880) ##### [v44.7.1](https://github.com/electron/electron/releases/tag/v44.7.1) ### Release Notes for v44.7.1 #### Fixes - Fixed a crash when starting without an available display server on Linux. [#54794](electron/electron#54794) <sup>(Also in [45](https://github.com/electron/electron/pull/54781))</sup> - Fixed a Linux crash creating a window with a menu bar when GTK failed to load. [#54859](electron/electron#54859) <sup>(Also in [45](https://github.com/electron/electron/pull/54846))</sup> - Fixed a `WebContentsView` that was removed with `removeChildView()` and re-added with `addChildView()` staying hidden behind its sibling views on Linux. [#54798](electron/electron#54798) - Fixed asar archives in non-ASCII folders failing to load on Linux. [#54849](electron/electron#54849) <sup>(Also in [45](https://github.com/electron/electron/pull/54848))</sup> - Fixed renderer crashes during garbage collection inside ShadowRealms. [#54865](electron/electron#54865) <sup>(Also in [45](https://github.com/electron/electron/pull/54864))</sup> #### Other Changes - Refactored mouse forwarding on Windows to fix `setIgnoreMouseEvents(true, { forward: true })` related issues. [#54802](electron/electron#54802) <sup>(Also in [45](https://github.com/electron/electron/pull/54803))</sup> - Updated Chromium to 152.0.7977.149. [#54085](electron/electron#54085) ##### [v44.7.0](https://github.com/electron/electron/releases/tag/v44.7.0) ### Release Notes for v44.7.0 #### Features - The macOS `autoUpdater` now streams update downloads to disk, resumes an interrupted download on the next check instead of starting over, and applies a binary delta when the update feed offers one for the running version. [#54204](electron/electron#54204) #### Fixes - Fixed an uncatchable TypeError in `net.fetch` when receiving response headers with non-ASCII characters, and preserved multiple Set-Cookie headers. [#54672](electron/electron#54672) #### Other Changes - Backported fixes from upstream ANGLE, Chromium, Dawn, fontconfig, Skia, V8 and WebRTC. [#54666](electron/electron#54666) - Backported fixes from upstream ANGLE, Chromium, Skia, V8 and WebRTC. [#54657](electron/electron#54657) ##### [v44.6.0](https://github.com/electron/electron/releases/tag/v44.6.0) ### Release Notes for v44.6.0 #### Features - Added the experimental `protocol.registerSource()` to serve a custom scheme from directories on disk without a JavaScript handler. [#54522](electron/electron#54522) <sup>(Also in [45](https://github.com/electron/electron/pull/54521))</sup> #### Fixes - Fixed a crash on launch on macOS when the system refused to register the app for sleep/wake notifications. [#54596](electron/electron#54596) - Fixed a crash on `navigator.usb.requestDevice()` in in-memory sessions. [#54616](electron/electron#54616) <sup>(Also in [45](https://github.com/electron/electron/pull/54615))</sup> - Fixed `webview.findInPage()` hanging when the host page also has an iframe. [#54586](electron/electron#54586) <sup>(Also in [43](electron/electron#54584), [45](https://github.com/electron/electron/pull/54585))</sup> - Updated time zone data to tzdata 2026d, including British Columbia's move to permanent UTC-7. [#54623](electron/electron#54623) #### Documentation - Documentation changes: [#54589](electron/electron#54589)
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##### [v44.10.1](https://github.com/electron/electron/releases/tag/v44.10.1) ### Release Notes for v44.10.1 #### Fixes - Fixed DevTools "Save" prompting for a location every time instead of reusing the previously chosen file. [#55484](electron/electron#55484) - Fixed DevTools "Save As" using the old file and Linux cancels treated as saved. - Fixed `webContents.adjustSelection()` ignoring the `end` option. [#55461](electron/electron#55461) <sup>(Also in [45](electron/electron#55462), [46](https://github.com/electron/electron/pull/55463))</sup> #### Performance Improvements - Improved performance of `net.fetch()` requests without a body. [#55445](electron/electron#55445) <sup>(Also in [43](electron/electron#55447), [45](electron/electron#55446), [46](https://github.com/electron/electron/pull/55444))</sup> - Improved performance of repeated `net.fetch()` calls for `file:` URLs. [#55458](electron/electron#55458) <sup>(Also in [45](electron/electron#55459), [46](https://github.com/electron/electron/pull/55457))</sup> #### Other Changes - Backported fixes from upstream Chromium, Dawn, Skia and V8. [#55492](electron/electron#55492) ##### [v44.10.0](https://github.com/electron/electron/releases/tag/v44.10.0) ### Release Notes for v44.10.0 #### Features - Added filtering options to `session.registerPreloadScript` - `matches`, `excludeMatches`, `includeGlobs`, `excludeGlobs`, `matchOriginAsFallback`. [#55182](electron/electron#55182) <sup>(Also in [45](https://github.com/electron/electron/pull/55181))</sup> #### Fixes - Fixed a crash on Linux when a D-Bus method call was made on a disconnected bus. [#55290](electron/electron#55290) <sup>(Also in [45](electron/electron#55292), [46](https://github.com/electron/electron/pull/55289))</sup> - Fixed a main process crash when `onSendHeaders` observed Blob uploads. [#55168](electron/electron#55168) <sup>(Also in [45](https://github.com/electron/electron/pull/55169))</sup> - Fixed `app.getLoginItemSettings()` not finding login items on Windows when the executable path contains spaces. [#55207](electron/electron#55207) <sup>(Also in [45](https://github.com/electron/electron/pull/54419))</sup> - Fixed Europe/London and Europe/Dublin time zone names showing as "GMT+00:00" in winter by updating ICU to tzdata 2026e. [#55335](electron/electron#55335) - Fixed File System Access blocklist gaps for `.git/hooks` writes and hypervisor UNC shares. [#55330](electron/electron#55330) - Fixed handling of malformed asar archives whose size fields do not match the file length. [#55176](electron/electron#55176) <sup>(Also in [43](electron/electron#55179), [45](https://github.com/electron/electron/pull/55175))</sup> - Fixed inconsistent handling of asar archive paths between the main process and child processes. [#55183](electron/electron#55183) <sup>(Also in [43](electron/electron#55185), [45](https://github.com/electron/electron/pull/55184))</sup> - Fixed `Menu.popup()` on macOS sometimes not showing a menu after another closed. [#55325](electron/electron#55325) <sup>(Also in [45](electron/electron#55326), [46](https://github.com/electron/electron/pull/55324))</sup> - Fixed MV3 extension events not arriving to background service workers. [#55152](electron/electron#55152) <sup>(Also in [43](electron/electron#55153), [45](https://github.com/electron/electron/pull/55154))</sup> - Fixed paste hanging indefinitely on Linux X11 until the app was restarted. [#55327](electron/electron#55327) - Fixed `protocol.registerSource` schemes not applying the same fetch rules as `protocol.handle` schemes. [#55177](electron/electron#55177) <sup>(Also in [45](https://github.com/electron/electron/pull/55178))</sup> - Fixed `utilityProcess` not emitting an `exit` event when the app quit while the process was still launching. [#55273](electron/electron#55273) <sup>(Also in [43](electron/electron#55272), [45](electron/electron#55274), [46](https://github.com/electron/electron/pull/55264))</sup> #### Other Changes - Updated Chromium to 152.0.7977.169. [#55033](electron/electron#55033) - Updated Node.js to v24.22.1. [#55162](electron/electron#55162) ##### [v44.9.3](https://github.com/electron/electron/releases/tag/v44.9.3) ### Release Notes for v44.9.3 #### Other Changes - Backported fixes from upstream ANGLE, Chromium, PDFium, Skia and V8. [#55149](electron/electron#55149) ##### [v44.9.2](https://github.com/electron/electron/releases/tag/v44.9.2) ### Release Notes for v44.9.2 ##### [v44.9.1](https://github.com/electron/electron/releases/tag/v44.9.1) ### Release Notes for v44.9.1 > \[!NOTE] > This release contains the fix for <GHSA-jr5w-w6x2-84p9>, the mitigation for compromised eMudhra intermediate certificates ##### [v44.9.0](https://github.com/electron/electron/releases/tag/v44.9.0) ### Release Notes for v44.9.0 #### Features - Added app shims on macOS to show windows under another app's Dock icon. [#55073](electron/electron#55073) <sup>(Also in [45](https://github.com/electron/electron/pull/55072))</sup> #### Fixes - Fixed link-opened windows not using the opener's session and `webPreferences`. [#55048](electron/electron#55048) <sup>(Also in [42](electron/electron#55050), [43](electron/electron#55049), [45](https://github.com/electron/electron/pull/55051))</sup> - Fixed `setCertificateVerifyProc` occasionally not being applied to a request issued concurrently with the first request to a host. [#55046](electron/electron#55046) <sup>(Also in [42](electron/electron#55054), [43](electron/electron#55047), [45](https://github.com/electron/electron/pull/55045))</sup> ##### [v44.8.0](https://github.com/electron/electron/releases/tag/v44.8.0) ### Release Notes for v44.8.0 #### Features - Added support for `Notification` action buttons on Linux. [#54890](electron/electron#54890) <sup>(Also in [45](https://github.com/electron/electron/pull/54889))</sup> #### Fixes - Fixed mouse cursor missing over native dialogs in certain scenarios on Windows. [#54987](electron/electron#54987) - Fixed `net.fetch` and `session.fetch` failing permanently with `net::ERR_FAILED` after the Network Service process restarts. [#54909](electron/electron#54909) <sup>(Also in [42](electron/electron#54925), [43](electron/electron#54908), [45](https://github.com/electron/electron/pull/54910))</sup> - Fixed `utilityProcess` dropping messages posted with `process.parentPort.postMessage()` right before the process exits. [#54960](electron/electron#54960) <sup>(Also in [42](electron/electron#55000), [43](electron/electron#54962), [45](https://github.com/electron/electron/pull/54956))</sup> - Fixed `win.isFullScreen()` being stale in fullscreen events on Windows. [#55009](electron/electron#55009) <sup>(Also in [45](https://github.com/electron/electron/pull/55008))</sup> #### Other Changes - Backported fixes from upstream Chromium and V8. [#55034](electron/electron#55034) - Updated Chromium to 152.0.7977.167. [#54928](electron/electron#54928) - Updated Node.js to v24.22.0. [#55004](electron/electron#55004) ##### [v44.7.2](https://github.com/electron/electron/releases/tag/v44.7.2) ### Release Notes for v44.7.2 #### Fixes - Fixed an issue where clicks posted to a background app were dropped on macOS. [#54819](electron/electron#54819) <sup>(Also in [45](https://github.com/electron/electron/pull/54818))</sup> - Fixed interrupted macOS updates leaving a broken app behind. [#54844](electron/electron#54844) <sup>(Also in [45](https://github.com/electron/electron/pull/54843))</sup> #### Other Changes - Backported fixes from upstream ANGLE, Chromium, PDFium and V8. [#54898](electron/electron#54898) #### Documentation - Documentation changes: [#54880](electron/electron#54880) ##### [v44.7.1](https://github.com/electron/electron/releases/tag/v44.7.1) ### Release Notes for v44.7.1 #### Fixes - Fixed a crash when starting without an available display server on Linux. [#54794](electron/electron#54794) <sup>(Also in [45](https://github.com/electron/electron/pull/54781))</sup> - Fixed a Linux crash creating a window with a menu bar when GTK failed to load. [#54859](electron/electron#54859) <sup>(Also in [45](https://github.com/electron/electron/pull/54846))</sup> - Fixed a `WebContentsView` that was removed with `removeChildView()` and re-added with `addChildView()` staying hidden behind its sibling views on Linux. [#54798](electron/electron#54798) - Fixed asar archives in non-ASCII folders failing to load on Linux. [#54849](electron/electron#54849) <sup>(Also in [45](https://github.com/electron/electron/pull/54848))</sup> - Fixed renderer crashes during garbage collection inside ShadowRealms. [#54865](electron/electron#54865) <sup>(Also in [45](https://github.com/electron/electron/pull/54864))</sup> #### Other Changes - Refactored mouse forwarding on Windows to fix `setIgnoreMouseEvents(true, { forward: true })` related issues. [#54802](electron/electron#54802) <sup>(Also in [45](https://github.com/electron/electron/pull/54803))</sup> - Updated Chromium to 152.0.7977.149. [#54085](electron/electron#54085) ##### [v44.7.0](https://github.com/electron/electron/releases/tag/v44.7.0) ### Release Notes for v44.7.0 #### Features - The macOS `autoUpdater` now streams update downloads to disk, resumes an interrupted download on the next check instead of starting over, and applies a binary delta when the update feed offers one for the running version. [#54204](electron/electron#54204) #### Fixes - Fixed an uncatchable TypeError in `net.fetch` when receiving response headers with non-ASCII characters, and preserved multiple Set-Cookie headers. [#54672](electron/electron#54672) #### Other Changes - Backported fixes from upstream ANGLE, Chromium, Dawn, fontconfig, Skia, V8 and WebRTC. [#54666](electron/electron#54666) - Backported fixes from upstream ANGLE, Chromium, Skia, V8 and WebRTC. [#54657](electron/electron#54657) ##### [v44.6.0](https://github.com/electron/electron/releases/tag/v44.6.0) ### Release Notes for v44.6.0 #### Features - Added the experimental `protocol.registerSource()` to serve a custom scheme from directories on disk without a JavaScript handler. [#54522](electron/electron#54522) <sup>(Also in [45](https://github.com/electron/electron/pull/54521))</sup> #### Fixes - Fixed a crash on launch on macOS when the system refused to register the app for sleep/wake notifications. [#54596](electron/electron#54596) - Fixed a crash on `navigator.usb.requestDevice()` in in-memory sessions. [#54616](electron/electron#54616) <sup>(Also in [45](https://github.com/electron/electron/pull/54615))</sup> - Fixed `webview.findInPage()` hanging when the host page also has an iframe. [#54586](electron/electron#54586) <sup>(Also in [43](electron/electron#54584), [45](https://github.com/electron/electron/pull/54585))</sup> - Updated time zone data to tzdata 2026d, including British Columbia's move to permanent UTC-7. [#54623](electron/electron#54623) #### Documentation - Documentation changes: [#54589](electron/electron#54589)
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Backport of #54932
See that PR for details.
Manual backport. The cherry-pick conflicted in six files, each because
mainhad neighbouring code this branch doesn't:BUILD.gn: this branch lists the Crashpad helper underdepsrather thanbundle_deps, so the app shim loader's bundle data is added todepshere.filenames.gni: kept only the app shim sources (the prefetch and passkeys sources next to them onmainaren't on this branch).shell/app/electron_library_main.mm: kept only the app shim helper in the anonymous namespace (HasProcessTypeSwitchbelongs to prefetch).shell/browser/api/electron_api_base_window.cc: keptIsAppShimValidandIsParentValid; left outGetConstructorTemplate, which is amain-only refactor.shell/browser/ui/file_dialog_mac.mm,shell/browser/ui/message_box_mac.mm: kept both sides' includes.Not built or tested locally yet. The Chromium patch applies to this branch's Chromium (152.0.7977.167) but has not been re-exported against it.
Notes: Added app shims on macOS to show windows under another app's Dock icon.
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