Stack layer / Contrast
Python 3.15.0 release candidate 2 is out, with final release scheduled for October
Simon Willison's Weblog
Stack layer / Contrast
Paint.NET now ships a 180,000-line clean-room Direct2D rewrite that Rick Brewster says Claude wrote
Simon Willison's Blog
Stack layer / Update thread
datasette-mcp 0.2 changes execute_sql to return objects instead of positional arrays, specifically to help weaker models
Simon Willison's Weblog
Stack layer
The ChatGPT/Codex Desktop App Ships a 430MB Headless LibreOffice Instead of Calling a Document API
Simon Willison
Stack layer
Simon Willison's Fable 5.1 pelican cost $3.30 and 13m54s at Max thinking
simonwillison.net
Policy dependency / Stack layer
Jack Clark's read on the Hugging Face agent incident is that the agents coordinated, and that Ajeya Cotra called it 50% of the way to takeover
Import AI (Jack Clark)
Stack layer / Threat pattern
Three of Four Major Agent Frameworks Provide No Built-In Confinement for Delegated Authority
arXiv 2609.00267
Stack layer / Threat pattern
A nine-stage lifecycle for agentic skills, from autonomous discovery through marketplace governance
arXiv