[rmcdaniel]

Release metadata for 2.24.0: product-train → 2.24.0, and the CHANGELOG Unreleased section moves under 2.24.0.

• Keep activity liveness heartbeats from growing run history unboundedly #870 (Bound the run history activity heartbeats write #1092): heartbeats no longer grow history with every call. This is a behavior change, and it adds a nullable migration.
• Make schedule create-or-update idempotent and let deleted schedule ids be reused #876 (Make re-applying an unchanged schedule a no-op #1089, Refuse a taken schedule id with a typed conflict #1090): unchanged schedule re-apply is a no-op, and a taken schedule id raises a typed conflict.
• Count runs with blocked or failing workflow tasks in fleet operator metrics #861 (Count replay-blocked runs in operator metrics and health #1091): replay-blocked runs appear in operator metrics and an advisory health check.

Why a minor: #1092 adds an additive migration (three nullable columns, no backfill) and changes how many heartbeat history events are written. #1090 adds a new public exception type. After merge: tag once main is green, run release verification, publish the GitHub Release.

🤖 Generated with Claude Code

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[rmcdaniel]

Released: tag 2.24.0 at 66deaf6 (after #1094). Main build 43116766807 was green, with the six feature shards taking 9–11 min. release verification 43119811149 passed: package plus all five upgrade cells. Packagist source and dist match, and the GitHub Release is Latest. Upgrade note: run migrations (three nullable columns on activity_attempts). Consumers: PHP Server is frozen, Waterline's Workflow dependency is development-only, and Sample App is locked to 2.20.5, so no downstream change is needed.