- Introduced queuebatchprocessor to replace the legacy batchprocessor, promoted memory‑limiter extension to beta stability, and marked configgrpc as stable.
- Enhanced mdatagen with first‑class type aliases (int64, duration, opaque types) and auto‑enable of v1 metrics; fixed bugs in mdatagen metric handling, exporter/debug attribute formatting, and a goroutine/file‑descriptor leak in configtls.
- Breaking change: removed Validator and Validate from pkg/xconfmap; users must migrate to the equivalent symbols in confmap.
v1.64.0/v0.158.0
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Add pkg.exporterhelper.queueBatchEnabled feature gate to enable batch settings by default.