Microsoftは3月19日(現地時間)、Windows 11のWindows Insider ProgramのCanaryチャンネル向けの最新ビルド「Windows 11 Insider Preview Build 27818」をリリースしました(Windows Blog)。
Canaryチャンネルで公開されるビルドは、将来の機能アップデートで追加される可能性のある、さまざまな新機能が先行して実装されています。プレビューチャンネルの中で最も不安定な可能性があり、提供されるドキュメントも限定的なものとなっています(例えば既知の不具合は掲載されないなど)。
Windows Insider Programの更新オプションでCanaryチャンネルを選択し、Windows 11のプレビュー版を使用しているユーザーは、Windows Updateを利用して最新版に更新することができます。
Build 27818の新機能
Build 27818では、Windowsセキュリティアプリの改良が行われ、Pluton TPMチップが搭載されている場合、「デバイスのセキュリティ」>「セキュリティプロセッサの詳細」の下に、製造元や製造元のバージョンなどの詳細が表示されるようになります。
ファイルエクスプローラーでは、ZIPファイルを解凍する際のパフォーマンスの改良が行われたほか、ホームが正しく読み込まれず、「Name」というランダムなフローティングテキストが表示されることがある問題の修正が行われています。
リリースノートは以下の通りです。
Changes and Improvements
[General]
- This update includes a small set of general improvements and fixes that improve the overall experience for Insiders running this build on their PCs.
[Windows Security]
- We are beginning to roll out a change in the Windows Security app where will show more details such as manufacturer and manufacturer version for Pluton TPM chips if your PC has one under Device security > Security processor details.
[Other]
- Suggested actions that appear when you copy a phone number or future date in Windows 11 are now deprecated. We are disabling this feature.
Fixes
[General]
- Fixed a d3d9.dll crash which was causing multiple apps to fail to launch starting with Build 27802 for some Insiders.
[File Explorer]
- Did some more work to improve the performance of extracting zipped files in File Explorer, particularly where you’re unzipping a large number of small files.
- Fixed an issue where File Explorer Home might not load correctly and just show random floating text saying “Name”.
[Taskbar & System Tray]
- Fixed an issue with the taskbar app window previews, where the corners of the flyout weren’t drawn with the correct radius in certain cases.
- Fixed an issue where the underlines under app icons in the taskbar may get stuck showing even if the app had been closed.
[Input]
- Fixed a high hitting ctmon.exe crash, which could impact the ability to type.
[Settings]
- Fixed an underlying issue which could result in Settings failing to launch with “The instruction at 0x00007FFEDEBDC003 referenced memory at 0x0000000000000010. The memory could not be read”. If impacted, you might also see a similar error message with RuntimeBroker.exe.
- Fixed an issue for Japanese users, where the name displayed at the top of Settings > Accounts showed First Name Last Name instead of Last Name First Name.
[Graphics]
- Fixed an issue which could cause sluggish video when using multiple monitors after changing from Second Screen Only to Duplicate display mode in the latest Canary builds.
- Made a couple of fixes to address issues which could cause Settings > System > Display > Graphics to crash.
- “Fixed an underlying issue which could lead to certain games failing to launch after an upgrade, saying DirectX function CreateComputePipelineState failed with E_INVALIDARG or StorePipeline failed with E_UNEXPECTED.
[Admin Protection]
- Fixed an issue which could cause Visual Studio Code to not be able to be installed when Admin Protection was enabled.
[Remote Desktop]
- Fixed an issue which could lead to Remote Desktop freezing when connecting.
[Other]
- Fixed an underlying issue which was causing certain apps to fail to open with an error saying “The application was unable to load a required virtual machine component”.
Known issues
[General]
- [IMPORTANT NOTE FOR COPILOT+ PCs] If you are joining the Canary Channel on a new Copilot+ PC from the Dev Channel, Release Preview Channel or retail, you will lose Windows Hello pin and biometrics to sign into your PC with error 0xd0000225 and error message “Something went wrong, and your PIN isn’t available”. You should be able to re-create your PIN by clicking “Set up my PIN”.
[Taskbar]
- [NEW] We’re working on the fix for an issue where the taskbar icons aren’t increasing in size as they should when using your PC in a tablet posture.
公式ブログには細かな変更内容がリストアップされていますので、インストールする前に確認することをおすすめします。
