Databases

SIG-etcd released v3.4.45 alongside v3.5.31 and v3.6.12, marking the end of support for the v3.4 series and pushing remaining users to upgrade.

Weaviate's June release moves HFresh, an SPFresh-inspired disk index, to general availability and adds preview multi-tenant namespaces and a built-in MCP server.

The Linux Foundation's Redis fork ships multi-tenant access control, native JSON logs, and throughput gains, cutting per-key memory by up to 10 percent.

ClickHouse moved its NVMe-backed managed Postgres service to public beta at Open House 2026, pairing transactional Postgres with native CDC into ClickHouse. It stays free until metering starts June 15.

PostgreSQL 19 Beta 1, released June 4, brings parallel autovacuum, self-scaling async I/O workers, a new pg_plan_advice planner extension, SQL/PGQ graph queries, and turns JIT off by default. GA is targeted for September/October 2026.

AWS released ExtendDB v0.1 on May 20, an Apache 2.0 adapter implementing the DynamoDB wire protocol on pluggable backends including PostgreSQL and Apache Cassandra, targeting local dev, CI/CD, on-premises, and hybrid environments.

Google announced a downloadable edition of Cloud Spanner that runs on-premises, on rival clouds, or on a laptop, dismantling a dependency on proprietary infrastructure that its engineers once thought impossible to remove.

ClickHouse 26.5 arrives on May 21 with 38 new features, 51 performance optimizations, a 27x Merge table speedup, Iceberg V3 geometry support, and new SQL compatibility aliases for PostgreSQL, Snowflake, and BigQuery.

Amazon Aurora Serverless platform version 4 scales 45% faster and delivers up to 30% better throughput at no extra cost, targeting agentic AI workloads.

SIG-etcd has released the first beta of etcd 3.7.0, introducing streaming reads for large result sets, up to 2x faster lease operations, and the complete elimination of all v2 API code.

Apache Iceberg 1.11.0 arrives with at-rest encryption across all table files, Spark 4.1 and Flink 2.1 compatibility, and Deletion Vector write support for Flink.

Etsy has finished migrating its proprietary 1,000-shard MySQL infrastructure to Vitess after five years, 2,500 pull requests, and 6,000 query rewrites, eliminating a single point of failure while preserving its existing data layout through custom vindexes.