Gateway Changelog

v1.2.3

2026-04-22

Reworked the observability model around profile-driven controls (prod_min, ops, incident, debug) with fine-grained override support.
Unified the runtime telemetry pipeline around structured trace events and sampled high-signal emissions (startup, dispatch failures, private transport failures, HTTP 5xx, etc.).
Consolidated diagnostics routing around private-channel operational endpoints and removed redundant legacy handlers.
Removed deprecated delivery-audit modules, database tables, and associated storage paths.
Finalized diagnostics and stats matrix transitions by updating storage schema to 20260422_001_observability_v9.
Aligned glibc baselines for release artifacts and runtime Docker images by migrating to debian:bookworm-slim.

2026-04-19

Release baseline now includes all gateway changes accumulated after v1.2.1 and before this publication checkpoint.
Gateway runtime package/version metadata is aligned to v1.2.2 for consistent rollout and diagnostics.
Release documentation and audit metadata are synchronized for this production release line.

2026-04-15

Improved ACK + pull delivery reliability by ensuring provider wakeup deliveries are cached before dispatch.
Improved first-sync behavior for provider pull routes, reducing missed pulls right after subscribe/sync.
Improved cross-database startup consistency for provider-pull subscription initialization (SQLite/Postgres/MySQL).

2026-04-10

Gateway now adopts SemVer-aligned release naming (vX.Y.Z, vX.Y.Z-beta.N) for consistent cross-platform release governance.
Added formal release notes and changelog governance for clearer operator-facing release communication.
Wakeup notification consistency is now aligned across APNS/FCM/WNS title propagation paths.
Private channel fallback reliability is improved by keeping ACK-timeout retries on private transport.