- Stabilized multiple feature gates and removed the pdata.useCustomProtoEncoding gate, introducing breaking changes.
- Fixed memory corruption and fatal errors in the configgrpc Snappy implementation.
- Enhanced cmd/mdatagen with strict gate validation, config schema and Go type generation, and automatic README config tables; added scalar marshaling interfaces and storage walker support for extensions.
v1.59.0/v0.153.0
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Breaking: Histogram bucket boundaries for exporter and batch processor metrics changed to power‑of‑two 128 B‑16 MiB range; dashboards/alerts must be updated.
Added stability level support, semantic references, and configurable Go struct fields for resource attributes in cmd/mdatagen, plus enum validation and distinct Go types for primitive config schemas.
Removed multiple stabilized feature gates and renamed deprecated memory‑limiter metrics, introducing breaking API changes;