PGNexus Weekly News This Week in PostgreSQL This week covers PostgreSQL 18 logical replication enhancements on Amazon RDS, a critical JDBC security fix patching a channel-binding downgrade vulnerability, CloudNativePG 1.30.0 with new CVE fixes and a DatabaseRole CRD, and multi-region disaster recovery using CloudNativePG distributed topology on Kubernetes. Together these updates highlight replication improvements, security hardening, operator maturity, and cloud-native resilience for PostgreSQL practitioners. [image: Logical replication improvements in Amazon RDS for PostgreSQL 18] <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Faws.amazon.com%2Fblogs%2Fdat...> Jul 07, 2026 | Ramdas Gutlapalli Logical replication improvements in Amazon RDS for PostgreSQL 18 <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Faws.amazon.com%2Fblogs%2Fdat...> PostgreSQL 18 introduces four targeted improvements to logical replication. First, STORED generated columns can now be included in the replication stream via a new `publish_genera… Read the Blog <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Faws.amazon.com%2Fblogs%2Fdat...> [image: Going Multi-Region: How to Set Up CloudNativePG(CNPG) Distributed Topology] <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Fwww.cybertec-postgresql.com%...> Jul 07, 2026 | Wellingtone Luvonga Going Multi-Region: How to Set Up CloudNativePG(CNPG) Distributed Topology <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Fwww.cybertec-postgresql.com%...> This article demonstrates how to configure CloudNativePG (CNPG) distributed topology across multiple Kubernetes clusters for PostgreSQL disaster recovery. The setup uses MinIO as… Read the Blog <https://pgnexus.ai/tech-blogs?url=https%3A%2F%2Fwww.cybertec-postgresql.com%...> Top 5 Hacker Discussions Index prefetching (V29) adds microoptimizations reducing amgetbatch calls and per-tuple stat overhead, plus EXPLAIN (ANALYZE, IO) instrumentation. Row pattern recognition review surfaces a wrong-result bug in context-absorption and disputes over walker refactoring. REPACK CONCURRENTLY deadlock fix is deferred to pg20. Logical replication sees active debate on conflict-log safety and a decision to leave UNLOGGED publication handling unchanged pending unresolved restore semantics. Proposal: Conflict log history table for Logical Replication <https://pgnexus.ai/hacker-discussions?subject=Proposal%3A%20Conflict%20log%2...> The discussion concerns a proposed conflict log history table for logical replication. Robert Haas raised two concerns about the v63-0001 patch design: (1) saving aside an error m… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=Proposal%3A%20Conflict%20log%2...> Skipping schema changes in publication <https://pgnexus.ai/hacker-discussions?subject=Skipping%20schema%20changes%20...> Vignesh C proposed a patch to handle UNLOGGED table conversions in PostgreSQL publications. The issue occurs when tables listed in publication EXCEPT clauses are converted to UNLO… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=Skipping%20schema%20changes%20...> Adding REPACK [concurrently] <https://pgnexus.ai/hacker-discussions?subject=Adding%20REPACK%20%5Bconcurren...> A potential deadlock issue in the REPACK [concurrently] feature risks losing large amounts of work. Mihail Nikalayeu proposed a patch to address it. Alvaro Herrera reviewed the pa… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=Adding%20REPACK%20%5Bconcurren...> Row pattern recognition <https://pgnexus.ai/hacker-discussions?subject=Row%20pattern%20recognition> Henson Choi reviews several aspects of the row pattern recognition patch. First, he acknowledges Jian's offset resolution consolidation as a useful direction—it enables EXPLAIN to… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=Row%20pattern%20recognition> index prefetching <https://pgnexus.ai/hacker-discussions?subject=index%20prefetching> Peter Geoghegan posted V29 of the index prefetching patch, noting V28 no longer applies cleanly. Key changes include two microoptimizations: index AMs can now set knownEndBackward… Read Discussion <https://pgnexus.ai/hacker-discussions?subject=index%20prefetching> This Week's Industry Movements Microsoft launched a $2.5B AI deployment company while separately shifting toward in-house models to cut costs. Anthropic is negotiating a custom chip deal with Samsung, joining an industry push for proprietary silicon. Alibaba banned Claude Code internally, citing security risks around Western AI tools. Meta's Zuckerberg admitted AI agent progress has lagged internal expectations, offering a rare candid signal amid the broader AI investment frenzy. [image: Microsoft launches its own AI deployment company with $2.5 billion commitment] <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F07%2F...> techcrunch.com Microsoft launches its own AI deployment company with $2.5 billion commitment <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F07%2F...> Microsoft has launched a new AI deployment company backed by a $2.5 billion commitment, joining Amazon, OpenAI, and Anthropic in establishing dedicated AI deployment operations. T… [image: Anthropic Discusses Custom AI Chip Development with Samsung] <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F07%2F...> techcrunch.com Anthropic Discusses Custom AI Chip Development with Samsung <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F07%2F...> Anthropic is in discussions with Samsung to develop a new custom AI chip, according to a TechCrunch report. The news follows OpenAI's recent announcement of its own custom AI chip… [image: Alibaba Reportedly Bans Employees from Using Claude Code] <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F07%2F...> techcrunch.com Alibaba Reportedly Bans Employees from Using Claude Code <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F07%2F...> Alibaba has reportedly classified Claude Code, Anthropic's AI-powered coding assistant, as high-risk software and banned its employees from using it. The move signals growing tens… [image: Mark Zuckerberg Tells Staff Meta's AI Agents Progressing Slower Than Expected] <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F07%2F...> techcrunch.com Mark Zuckerberg Tells Staff Meta's AI Agents Progressing Slower Than Expected <https://pgnexus.ai/tech-news?url=https%3A%2F%2Ftechcrunch.com%2F2026%2F07%2F...> Meta CEO Mark Zuckerberg reportedly told employees at an internal meeting that the company's AI agent development has not advanced as quickly as he had hoped. The candid admission… Want to stay up to date with the PostgreSQL community and industry news? Visit PGNexus <https://pgnexus.ai> to learn more