Qdrant 1.18.1 release notes, 22 May 2026

https://github.com/qdrant/qdrant/pull/8988 - Refactor quantized multi-vector scorers for io_uring support
https://github.com/qdrant/qdrant/pull/9058 - Validate vector dimensions before WAL write for async upserts

https://github.com/qdrant/qdrant/pull/8990 - Notify pending consensus ops on snapshot apply
https://github.com/qdrant/qdrant/pull/9054 - Fix indexed integer range filter with float values
https://github.com/qdrant/qdrant/pull/9055 - Fix {match: {except: []}} returning zero results with payload index
https://github.com/qdrant/qdrant/pull/9070 - Fix empty vector panic
https://github.com/qdrant/qdrant/pull/9099 - Fix TurboQuant heap memory under-reporting
https://github.com/qdrant/qdrant/pull/9107 - Do not use unnecessary sequential mmaps
https://github.com/qdrant/qdrant/pull/9014 - Fix resharding cleanup data race with update queue
https://github.com/qdrant/qdrant/pull/9120 - Use cluster default shard transfer method for fallback
https://github.com/qdrant/qdrant/pull/9121 - Recreate workers/optimizers async to not block consensus
https://github.com/qdrant/qdrant/pull/9110 - Restart optimizer on conflicting vector schema
https://github.com/qdrant/qdrant/pull/9122 - Do not remove shard for snapshot transfer receiver
https://github.com/qdrant/qdrant/pull/9125 - Fix snapshot transfer cancellation on external malformed requests
https://github.com/qdrant/qdrant/pull/9116 - Fix deleted mask race on optimization and snapshot creation

https://github.com/qdrant/qdrant/pull/9031 - Authorize request before we accept snapshot file upload