Fill the missing 2.0.1, 2.1.0 and 2.1.1 changelog entries

CHANGELOG.md

@@ -11,6 +11,83 @@ Planned: GCS chunk-store backend; an opt-in read-your-writes barrier in
 the wire proxy (hold a write's ack until the ingester confirms the WAL
 entry — a synchronization barrier, not in-proxy capture).
 
+## [2.1.1] - 2026-09-07
+
+### Fixed
+
+- Fix a monitor mutex deadlock that could leave `argon console` hanging on
+  shutdown after its first health check. Alert updates now reuse the lock
+  held by the health loop. Regression tests cover ticker shutdown, repeated
+  failures and recovery.
+
+## [2.1.0] - 2026-09-07
+
+Correctness and workflow hardening for native MongoDB writes, reviewed
+merges and undo. See the [release notes](docs/RELEASE_2_1.md) for regression
+coverage and operating requirements.
+
+### Added
+
+- `argon doctor` checks connectivity, replica-set readiness, capture
+  permissions, exact document images and transactions with temporary probes.
+- `argon collections prepare` enables the document images needed to capture
+  updates to new collections before application writes begin.
+- Capture status includes persisted health, the last captured event and its
+  observed delay. The delay is an event sample, not a live queue-lag estimate.
+- Executable CLI and Python examples for pinned agent runs and native writes.
+
+### Fixed
+
+- Preserve BSON types in document keys. Repair legacy keys from authoritative
+  document images and refuse ambiguous historical deletes.
+- Capture exact document images for replay and undo. Missing update images or
+  unsupported collection drop/rename operations mark history as degraded.
+- Wait for durable capture readiness, retry transient failures, resume capture
+  and drain acknowledged writes before release. Persist branch actor labels
+  and trigger snapshots from native capture.
+- Apply merge and undo changes transactionally with head and version checks.
+  Reject stale plans and incomplete undo history before partial data changes.
+- Coordinate snapshot publication and garbage collection across processes,
+  and refuse reset while a branch is checked out.
+- Make CLI JSON output usable by callers and validate installer behavior
+  against published release assets.
+
+### Security
+
+- Disable native MongoDB checkout and sandbox credentials in the anonymous
+  demo. Keep native-driver examples on the local deployment path.
+- Bind control-plane listeners to loopback by default. Public listeners
+  require explicit authentication outside restricted demo mode; cross-origin
+  requests require an allowed origin.
+
+### Changed
+
+- Use one version source for the CLI, npm package and MCP manifest. Release
+  automation publishes binaries before npm and the MCP Registry.
+- Expand CI coverage for native-driver capture and undo, all Go modules,
+  release metadata, installers and reachable dependency vulnerabilities.
+  Source builds require Go 1.26.6 or newer.
+- Document physical sandbox copying costs, retained-history requirements,
+  branch/run actor attribution and capture lifecycle constraints. Benchmark
+  reports distinguish metadata creation from full sandbox readiness.
+
+## [2.0.1] - 2026-07-09
+
+### Added
+
+- `argon console` with an embedded browser UI, REST read endpoints and
+  configurable server options.
+- A scoped anonymous demo mode with request limits and sandbox cleanup.
+- MCP Registry metadata and a GitHub OIDC publishing workflow. The npm
+  package includes the server's `mcpName`.
+
+### Fixed
+
+- Recover managed capture after a control-plane restart.
+- Include npm executable entry points in the published package and select
+  the `.exe` release asset on Windows.
+- Serve the console HTML without caching while caching hashed assets.
+
 ## [2.0.0] - 2026-07-07
 
 The v2 engine: a ground-up rebuild around a deterministic physical WAL.
@@ -82,4 +159,10 @@ Earlier changelog entries claiming a 2024 release history, and the
 performance/benchmark tables that accompanied them, were inaccurate — the
 project's first commit is 2025-05-27 — and have been removed. Performance
 numbers now live only in the reproducible benchmark suite
-(https://github.com/argon-lab/benchmarks).
+(https://github.com/argon-lab/benchmarks).
+
+[Unreleased]: https://github.com/argon-lab/argon/compare/v2.1.1...HEAD
+[2.1.1]: https://github.com/argon-lab/argon/releases/tag/v2.1.1
+[2.1.0]: https://github.com/argon-lab/argon/releases/tag/v2.1.0
+[2.0.1]: https://github.com/argon-lab/argon/releases/tag/v2.0.1
+[2.0.0]: https://github.com/argon-lab/argon/releases/tag/v2.0.0