Qdrant 1.16.2 release notes, 4 Dec 2025

https://github.com/qdrant/qdrant/pull/7607 - Improve request timeout handling for telemetry and metrics
https://github.com/qdrant/qdrant/pull/7623 - Add user agent to HTTP requests sent by Qdrant server

https://github.com/qdrant/qdrant/pull/7674 - Fix critical WAL bug that could break consensus or cause data corruption on restart
https://github.com/qdrant/qdrant/pull/7684 - Fix consensus crash when applying consensus snapshot with non-replicated collection
https://github.com/qdrant/qdrant/pull/7620 - Fix panic during search on segments with empty HNSW graph
https://github.com/qdrant/qdrant/pull/7629, https://github.com/qdrant/qdrant/pull/7640, https://github.com/qdrant/qdrant/pull/7673 - Fix shard resource cleanup when shard is replaced, prevent deadlock on small CPUs
https://github.com/qdrant/qdrant/pull/7621, https://github.com/qdrant/qdrant/pull/7626 - Fix payload index storage still flushing after removal, fixing data corruption and IO errors on Windows
https://github.com/qdrant/qdrant/pull/7624, https://github.com/qdrant/qdrant/pull/7627 - Fix Gridstore storage still flushing after wipe, fixing data corruption and IO errors
https://github.com/qdrant/qdrant/pull/7614, https://github.com/qdrant/qdrant/pull/7618 - Fix Docker/WSL on Windows with bind mount corrupting storage
https://github.com/qdrant/qdrant/pull/7678 - Fix collections_vector_total metric reporting -0.0 if there are no vectors
https://github.com/qdrant/qdrant/pull/7649 - Also report collection_indexed_only_excluded_points metric if zero