You can now select the latest major version PostgreSQL 15 in Azure Cosmos DB for PostgreSQL for a new cluster. Existing clusters can be upgraded to PostgreSQL 15 using the in-place upgrade feature. With PostgreSQL 15 available on Azure Cosmos DB for PostgreSQL clusters, you can benefit from improved in-memory and on-disk sorting algorithms, improved flexibility in regular expressions via new functions, and query performance improvements such as SELECT DISTINCT that now can be executed in parallel among other improvements.
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