Slava Pestov

I landed some performance improvements for the Swift type checker recently, and I'm currently finishing up the next set of changes which I hope to merge soon.

There are two main improvements. The first is a new "disjunction pruning" optimization to help skip impossible overload choices, and the second set of improvements concern implicit conversions and the constraints they generate.

An interesting cultural phenomenon is prefixing swift-ci commands with “please”. It warms my heart to see new hires adopt this convention. Maybe some of them don’t even realize the “please” does nothing! (Although I like to believe it reduces the odds I’ll hit a flaky test.) I actually don’t even remember how this started and I was around when pull request testing was introduced

Be sure to keep up with your text editor’s security updates, fellow Notepad users! I heard that vi fans are exploiting this in the wild to install ransomware on people’s computers. The ransomware won’t let you exit vi until you pay up https://www.cve.org/CVERecord?id=CVE-2026-20841