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Couchbase Lite Release Notes

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      4.0.0 — October 2025

      Version 4.0.0 for C delivers the following features and enhancements:

      Couchbase Lite Release Notes

      Enhancements

      Issues and Resolutions

      Fixed Issues

      Known Issues

      Breaking Changes

      Deprecations

      For an overview of the latest features offered in Couchbase Lite 4.0.0, see New in 4.0