いつもの。何事もなければ、来週 3/24(火)夜 ～ 3/25(水)朝ごろに来るはず。

Release Notes — Thunderbird
https://www.thunderbird.net/en-US/thunderbird/149.0/releasenotes/
> Version 149.0 | Released March 24, 2026

Release Notes — Thunderbird
https://www.thunderbird.net/en-US/thunderbird/140.9.0esr/releasenotes/
> Version 140.9.0esr | Released March 24, 2026