chore: librarian release pull request: 20260324T002237Z

[ohmayr]

PR created by the Librarian CLI to initialize a release. Merging this PR will auto trigger a release.

Librarian Version: v0.7.0
Language Image: us-central1-docker.pkg.dev/cloud-sdk-librarian-prod/images-prod/python-librarian-generator@sha256:b8058df4c45e9a6e07f6b4d65b458d0d059241dd34c814f151c8bf6b89211209

google-cloud-spanner: 3.64.0

3.64.0 (2026-03-24)

Features

• implement native asyncio support via Cross-Sync (feat: implement native asyncio support via Cross-Sync #1509) (0aa1eda5)

• add TLS/mTLS support for experimental host (feat: add TLS/mTLS support for experimental host #1479) (12773d77)

• use inline begin to eliminate BeginTransaction RPC (feat(dbapi): use inline begin to eliminate BeginTransaction RPC #1502) (15eebdfb)

• add Client Context support to options (feat(spanner): add Client Context support to options #1499) (9fcb6470)

[gemini-code-assist]

Summary of Changes

Hello, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request automates the release process for the google-cloud-spanner library, updating it to version 3.64.0. This new version introduces significant enhancements, including native asyncio capabilities, improved security with TLS/mTLS support, and performance optimizations for transaction management, alongside new client context options.

Highlights

• Asyncio Support: Implemented native asyncio support for the library via Cross-Sync.
• TLS/mTLS Support: Added support for TLS/mTLS for experimental hosts.
• Transaction Optimization: Optimized transaction handling by using inline begin to eliminate BeginTransaction RPC calls.
• Client Context: Introduced Client Context support to options.

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[gemini-code-assist]

Code Review

This pull request is an automated release for google-cloud-spanner version 3.64.0. The changes consist of version bumps in configuration files, source code, and sample metadata, along with an updated CHANGELOG.md. The changes are consistent and correct for a release. I have not found any issues to report.