Microsoft 365 バージョン 2512 ビルド 19530.20074

https://learn.microsoft.com/en-us/officeupdates/current-channel 未更新
https://learn.microsoft.com/en-us/officeupdates/current-channel-preview 未更新
https://learn.microsoft.com/en-us/officeupdates/current-channel-preview#version-2512-december-18