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Couchbase Lite Release Notes

3.4.0 — June 2026

Version 3.4.0 for Objective-C delivers the following features and enhancements:

Enhancements

Fixed Issues

CBL-7766 — SQL++ fails to parse the IN operator
CBL-7873 — Replicator ignores proxy settings from a PAC file on iOS and Mac Catalyst
CBL-7960 — Purging a deleted document does not trigger query change listener events
CBL-7985 — MultipeerReplicator may crash when registering a replication task while stopping
CBL-8282 — WebSocket wrapper could throw an uncaught ObjectDisposedException during connection shutdown
CBL-8363 — Crash due to buffer overrun in Encoder::snip while saving a Version Vector document
CBL-8380 — A peer connection that closes before the TLS handshake completes may hang the MultipeerReplicator
CBL-8382 — Stopping a replicator with pending conflict tasks could throw an uncaught exception
CBL-8475 — Use-after-free crash (EXC_BAD_ACCESS) when a replicator is torn down
CBL-8515 — A stalled inbound P2P TLS handshake can wedge the MultipeerReplicator
CBL-8561 — Replicator may time out when replicating a large number of collections

Known Issues

None for this release.

Deprecations

None for this release.

For an overview of the latest features offered in Couchbase Lite 3.4, see New in 3.4.