v8.1.0

8.1.0 (2025-07-28)

Features

• Add Custom OpenTelemetry Exporter in for Service Metrics (#2272) (610d1b9)
• Add methods from gax to cache proto root and process custom error details (#2330) (1b3931a)
• Add metrics tracers (#2319) (192bf2b)
• Add support for AFE latency metrics (#2348) (0666f05)
• Add throughput_mode to UpdateDatabaseDdlRequest to be used by Spanner Migration Tool. See https://github.com/GoogleCloudPlatform/spanner-migration-tool (#2304) (a29af56)
• Operation, Attempt, and GFE metrics (#2328) (646e6ea)
• Proto changes for an internal api (#2356) (380e770)
• spanner: A new field snapshot_timestamp is added to message .google.spanner.v1.CommitResponse (#2350) (0875cd8)
• spanner: Add new change_stream.proto (#2315) (57d67be)
• spanner: Add tpc support (#2333) (a381cab)
• Track precommit token in r/w apis(multiplexed session) (#2312) (3676bfa)

Bug Fixes

• Docs-test (#2297) (61c571c)
• Ensure context propagation works in Node.js 22 with async/await (#2326) (e8cdbed)
• Pass the Span correctly (#2332) (edaee77)
• System test against emulator (#2339) (2a6af4c)
• Unhandled exceptions from gax (#2338) (6428bcd)

Performance Improvements

• Skip gRPC trailers for StreamingRead & ExecuteStreamingSql (#2313) (8bd0781)