Merge pull request #2292 from ably/release/2.28.0f

2.28.0 (2026-08-21)

Full Changelog

• Roll out e2e encryption of data payloads on annotations. They were previously a message type whose publish path deliberately did not apply the channel's encryption (and were documented accordingly), but the reasons for this no longer apply, so there is no reason now not to enable e2e encryption on annotation payloads. #2277