releasenotes/notes/coalesce_heartbeats-fb8899a5f9fe4709.yaml


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---
features:
  - |
    Heartbeats to the conductor are grouped when they are scheduled or
    requested within a time interval of five seconds to avoid sending
    them in quick succession.
fixes:
  - |
    Fixes an issue where a quick succession of heartbeats exposes a race
    condition in the conductor's RPC handling.