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PostgreSQL's isolation levels hold surprises: read uncommitted silently becomes read committed, repeatable read forbids phantom reads the standard permits, and…

TL;DR: This advisory covers the two most important high-severity memory-safety vulnerabilities affecting MongoDB Community and our downstream Percona Server for MongoDB – CVE-2026-11933 and CVE-2026-9740. Both will be addressed in a single…
PostgreSQL's `DEFERRABLE` transaction mode only works with `SERIALIZABLE READ ONLY` transactions, where it waits for a safe snapshot to eliminate…
What's new in pgstream v1.1.0: env vars in YAML config, JSON logs, Kubernetes health probes, custom TLS for OpenSearch, and fixes for composite primary keys.