A weekly digest of client library updates from across the Cloud SDK

## Library A weekly digest of client library updates from across the [Cloud SDK](https://cloud.google.com/sdk). ### Node.js ### Changes for [@google-cloud/bigtable](https://github.com/googleapis/nodejs-bigtable) #### [6.4.0](https://github.com/googleapis/nodejs-bigtable/compare/v6.3.0...v6.4.0) (2025-08-21) ##### Features * Enable csm by default ([#1695](https://github.com/googleapis/nodejs-bigtable/issues/1695)) ([9744aa3](https://github.com/googleapis/nodejs-bigtable/commit/9744aa355e87c2170019c52b58d1045160f19e7c)) * For application latencies timed stream a few cosmetic changes are needed ([#1645](https://github.com/googleapis/nodejs-bigtable/issues/1645)) ([75d1a6f](https://github.com/googleapis/nodejs-bigtable/commit/75d1a6f5bc8d8cd74214bdf3c9db9d06786f9575))