- Added exporter‑helper metric to track in‑flight export requests per exporter.
- Fixed multiple bugs: HTTP snappy handling, request body closing, gRPC log verbosity, Prometheus config defaults, noop tracer provider, and HTML escaping in pdata values.
- Introduced confmap.Validator API, deprecated xconfmap.Validator, and added go struct.ignore flag to mdatagen.
v1.58.0/v0.152.0
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Add pkg.exporterhelper.queueBatchEnabled feature gate to enable batch settings by default.
Introduced queuebatchprocessor to replace the legacy batchprocessor, promoted memory‑limiter extension to beta stability, and marked configgrpc as stable.