v25.2.0-rc.2

🦖 Deprecations

• Deprecate device methods in MatrixClient (#3357).

✨ Features

• Total summary count (#3351). Contributed by @toger5.
• Audio concealment (#3349). Contributed by @toger5.

🐛 Bug Fixes

• Correctly accumulate sync summaries. (#3366). Fixes element-hq/element-web#23345.
• Keep measuring a call feed's volume after a stream replacement (#3361). Fixes element-hq/element-call#1051.
• Element-R: Avoid uploading a new fallback key at every /sync (#3338). Fixes element-hq/element-web#25215.
• Accumulate receipts for the main thread and unthreaded separately (#3339). Fixes element-hq/element-web#24629.