Upgrade dependencies. Prepare 1.5.0 release

Entire-Checkpoint: 37abb99fe6a7

ReleaseNotes.md

@@ -1,19 +1,34 @@
-# `cc-metric-store` version 0.1.1
+# `cc-metric-store` version 1.5.0
 
-This is a bugfix release of `cc-metric-store`, the metric timeseries cache
+This is a major release of `cc-metric-store`, the metric timeseries cache
 implementation of ClusterCockpit.
 For release specific notes visit the [ClusterCockpit Documentation](https://clusterockpit.org/docs/release/).
 
-Notable changes in version 0.1.0:
-
-- Cleanup of code and restructuring
-- Document REST API with Swagger
-- Introduce REST API versioning
-- Provide Swagger UI test web-frontend
-- Introduce re-sampling of metric data
-- Support also ms, ns in line protocol
-- Support NATS credentials
-
 ## Breaking changes
 
-None
+- The internal `memorystore`, `avro`, `resampler`, and `util` packages have been
+  removed. The storage engine is now provided by the
+  [`cc-backend`](https://github.com/ClusterCockpit/cc-backend) package
+  (`cc-backend/pkg/metricstore`). This repository is now the HTTP API wrapper
+  only.
+- The configuration schema has changed. Refer to `configs/config.json` for the
+  updated structure.
+
+## Notable changes
+
+- **Storage engine extracted to `cc-backend` library**: The entire in-memory
+  time-series storage engine was moved to `cc-backend/pkg/metricstore`. This
+  reduces duplication in the ClusterCockpit suite and enables shared maintenance
+  of the storage layer.
+- **HealthCheck API endpoint**: New `GET /api/healthcheck/` endpoint reports the
+  health status of cluster nodes.
+- **Dynamic memory management**: Memory limits can now be adjusted at runtime via
+  a callback from the `cc-backend` library.
+- **Configuration schema validation**: The config and metric config JSON schemas
+  have been updated and are now validated against the structs they describe.
+- **Startup refactored**: Application startup has been split into `cli.go` and
+  `server.go` for clearer separation of concerns.
+- **`go fix` applied**: Codebase updated to current Go idioms.
+- **Dependency upgrades**: `nats.go` bumped from 1.36.0 to 1.47.0;
+  `cc-lib` updated to v2.8.0; `cc-backend` updated to v1.5.0; various other
+  module upgrades.