1.21.26 | California drought-free for 25 years, PostgreSQL optimizations, Anthropic's open-sourced assignment

Hacker News Highlights · Jan 21, 2026 · 10m

This is a recap of the top 10 posts on Hacker News on Jan 21, 2026.

Feel free to leave feedback on Github: https://github.com/denolfe/hacker-news-highlights

(00:00) - Intro

(00:21) - California is free of drought for the first time in 25 years

(01:26) - Unconventional PostgreSQL Optimizations

(02:34) - Anthropic's original take home assignment open sourced

(03:36) - Ask HN: Do you have any evidence that agentic coding works?

(04:43) - cURL removes bug bounties

(05:47) - The Unix Pipe Card Game

(06:37) - Instabridge has acquired Nova Launcher

(07:44) - IPv6 is not insecure because it lacks a…