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@github-actions github-actions released this 05 Jun 14:10
· 43 commits to main since this release
v5.10.0
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Learn about vigilant mode.

Unified daemon-lifecycle substrate (RDR-149): T1, T2, and T3 now ride one
leased/fenced/atomic service registry, ending the recurring discovery /
single-writer / self-heal / version-skew bug class.

Fixed

  • T3 daemon no longer keeps serving the old binary after a CLI upgrade
    (#1112).     The T3 daemon now rides the shared supervisor, which owns the
    version-skew upgrade-cycle uniformly across tiers — the same mechanism T2
    already had. After an upgrade the stale daemon is cycled automatically
    instead of persisting until a manual nx daemon t3 stop && start.
  • T1 scratch no longer strands sibling shells when the discovery record is
    lost (#1114).     T1 now self-heals: the MCP server's lease heartbeat
    re-asserts a transiently-lost discovery record, so a sibling nx scratch
    succeeds whenever the T1 server is up (previously it raised
    T1ServerNotFoundError until the session restarted).
  • T1 discovery is immune to PID reuse. Liveness is now lease freshness
    (TTL), not a PID-liveness probe, so a recycled PID can no longer keep a dead
    owner's record alive.

Added

  • nx doctor flags a CLI-vs-T3-daemon version mismatch. The
    operator-visible counterpart to the #1112 fix: a soft warning (the daemon
    still works, it is merely stale) with a restart suggestion when the running
    T3 daemon's version diverges from the installed CLI. Local mode only.

Changed

  • T1/T2/T3 daemon lifecycle unified onto one leased ServiceRegistry
    primitive (RDR-149).     Owner discovery, single-writer election,
    ungraceful-death reap, restart fencing, self-heal re-assert, and version-skew
    cycling now live in one place (src/nexus/daemon/service_registry.py),
    consumed by each tier. T1 keys its lease on the Claude session-id (re-keyed
    from a transient server-pid at cold start) rather than the parent PID; the
    change is transparent to users. A standing process gate (mechanically
    enforced by tests/daemon/test_lifecycle_gate.py) keeps future lifecycle
    fixes in the shared primitive instead of per-tier copies.
    nx doctor --check-t1 reports the session-id lease model.
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