Releasing Windows 10 Build 19043.1023 (21H1) to Beta & Release Preview Channels

https://blogs.windows.com/windows-insider/2021/05/21/releasing-windows-10-build-19043-1023-21h1-to-beta-release-preview-channels/
Releasing Windows 10 Build 19042.1023 (20H2) to Release Preview Channel
内容は同じ(多分)

We fixed a memory leak in ctfmon.exe that occurs when you refresh an application that has an editable box.
We added support for the .hif file extension for High Efficiency Image File (HEIF) images.

いままで HEIF はサポートしていなかったのか (;^ω^)
6/5 オプションの品質プログラム
6/9 定例のパターンか