Postgres 19 is late because the models found the bugs
Robert Haas now expects November, a month late. Back-patched fixes are up 60% on last year and committers were no sloppier: LLMs made decades of latent bugs findable, and fixing them got only somewhat easier. Robert Haas
AI
Five 27B models beat one frontier model. Five Qwen3.8-27B agents sharing only files on disk scored 9.8/10 on ten LiveCodeBench Hard problems against 8.0 for single-shot Fable 5. AI Weekly
A 109M text JEPA out-aligns 72B LLMs. Balestriero and LeCun prove JEPAs on different modalities converge; next-token prediction is a JEPA with bad views. arXiv
China’s first frontier-model export controls. MOFCOM No. 48 would restrict exporting models over 10^26 FLOPs, 2T parameters or a global top-10; open-source exempt. CSA
Hardware & infra
100% CPU usually means waiting on RAM. A 99M-row GROUP BY spent half its cycles stalled on DRAM; cache-sized radix partitions halved it. Epsio Labs
Tools & harnesses
Prospero, a harness with deadlines on everything. Chris Wellons’ lean C++ agent. null program
Repo of the day: OmniDiff. Tree-sitter structural diffs in Rust, 24 languages, git difftool. GitHub
Security angle
One shared link took over ChatGPT accounts. A postMessage listener with no origin check, an unsandboxed srcdoc iframe and a CSP-allowed JSONP endpoint, chained. Parameter Labs
Wider tech
White LEDs without rare earths. Seoul Viosys is mass-producing a 10µm phosphor-free GaN emitter at half the cost of a white LED. Semiconductor Today
World
Bulgaria’s first woman president. Iliana Yotova took 57.5% in Sunday’s runoff. Novinite
Attic seeds, seven ears per stalk. A lost drought-tolerant wheat, regrown. Smithsonian
Spark
Postgres is spending a month on what the models found; spend an hour on your oldest open ticket.