databases

ClickHouse's pg_clickhouse extension now pushes whole correlated subqueries down to ClickHouse, taking TPC-H pushdown coverage from 12 to 16 of 22 queries.

DuckDB's team previewed version 2.0, codenamed Cyanoptera, replacing its PostgreSQL-derived SQL parser with an extensible PEG-based parser and adding client/server mode and triggers.

QuestDB 10.0 introduces QWP, a binary columnar protocol that replaces separate ILP and PostgreSQL wire connections, cutting ingestion overhead and streaming query results into Apache Arrow at over 200 million rows a second.

Turso, which rewrote SQLite from scratch in Rust, is now building a Postgres-speaking frontend on the same engine, aiming to be what its CEO calls 'the LLVM of databases.'

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.

PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 landed May 14, fixing 11 security flaws and over 60 bugs, with four CVEs rated 8.8.

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.

Databricks has made Lakebase generally available on Azure across 14 regions, completing a multi-cloud rollout of its serverless PostgreSQL database built on technology from its Neon and Mooncake Labs acquisitions.

DuckDB 1.5.0 introduces a VARIANT type that speeds JSON queries up to 100x, promotes GEOMETRY into core, overhauls the CLI, and delivers broad performance gains across more than 6,500 commits from nearly 100 contributors.

Oracle ends security patches for MySQL 8.0 on April 30, leaving 58 percent of monitored instances on an unsupported version with no fix path for new vulnerabilities.