capital · May 17, 2026
ClickHouse to Host 26.5 Release Call on May 21 Ahead of Open House
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ClickHouse announced plans for a 26.5 release call on May 21, 2026, ahead of its Open House event. The release adds support for negative LIMIT BY, a SYSTEM PAUSE VIEW feature, and dotProduct as a distance function for vector similarity indexes. These capabilities expand analytical and vector-search options in the open-source columnar database. ClickHouse previously raised $400 million in a Series D round at a $15 billion valuation in January 2026.
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