Microsoftは8月15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 27686」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 27686の新機能
Build 27686では、新しいWindows Sandbox Client Previewが含まれています。ランタイムクリップボードリダイレクト、オーディオ/ビデオ入力コントロール、ランタイムでホストとフォルダを共有する機能が導入されています。
その他、PCのバッテリー駆動時間を改善するための最適化や、設定画面への仮想ハードディスク(VHD/`VHDx)のデタッチボタンの追加が行われています。
リリースノートは以下の通りです。
Changes and Improvements
[General]
- Some features that were previously rolled out to Insiders in the Canary Channel may disappear as we flight newer 27xxx series builds. These features should begin rolling out again to Insiders over time.
- We’ve made optimizations to improve battery life for PCs running Build 27686+ in the Canary Channel. Let us know what you think and if you are not seeing the battery life on your PC you are expecting, let us know via Feedback Hub. When filing feedback in Feedback Hub on any battery life issues you experience, be sure to use the “Start recording” button to capture additional logs.
[Settings]
- In response to feedback, we have added a detach virtual hard disk (VHD/`VHDx) button to Settings making it much simpler to detach your VHD/VHDx as needed. This option is available under Settings > System > Storage > Disks & Volumes, in the properties for your VHD/VHDx.
[Networking]
- To help us evaluate future improvements in network performance, your device may periodically run network tests in the background to collect diagnostic data. These tests will use a small amount of data (up to 10MB/day) and will only run on Ethernet and Wi-Fi connections that are not marked as metered. This will only occur on PCs in the Canary Channel running Build 27686 and higher.
[Storage]
- When formatting disks from the command line using the format command, we’ve increased the FAT32 size limit from 32GB to 2TB.
Fixes
[Dev Drive]
- Fixed an issue where Dev Drive VHDs weren’t automatically re-mounting when the underlying volume was dismounted and brought back online.
[Lock screen]
- Did some work to help address an issue where the battery icon displayed on the lock screen might be out of sync with the actual battery level of your PC.
[Windows Security]
- Fixed an issue in the Windows Security app where if you browsed the networks under Firewall & Network protection, it showed a broken glyph (a rectangle) next to the network name rather than a network icon.
[Settings]
- Fixed an issue under Settings > System > Storage > Disks and Volumes, where there was no space between the Create and Attach VHD buttons.
- Fixed an issue where the power mode option in Settings > System > Power & Battery was showing in cases where it couldn’t be changed, leading to a blank dropdown.
- Fixed an issue where if you searched in Settings for Kiosk and clicked the result for setting up kiosk mode, it wouldn’t navigate to the correct page for doing that.
[Other]
- Fixed an issue in Registry Editor where when editing a DWORD or QWORD if you pasted in a HEX value into the text box and saved it, the value saved might not be the one you had entered (for example, pasting 0x1 would become 0x411).
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”.
[Input]
- We are working on the fix for an issue causing the emoji panel to close when trying to switch to the kaomoji and symbols sections, or after selecting an emoji.
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。
