Hi, it’s Carl again. You may remember me as the guy who taught Claude to use Antithesis . Earlier this year, SQLite released (3.51.3) , which fixed a longstanding bug in their Write-Ahead Logging (WAL) subsystem called the WAL-Reset bug . The bug had been hanging around since 2010, but the SQLite team had apparently been unaware of its existence until earlier this year (more on this below). As they wrote at the time: “The bug is a data race with tight timing constraints. It is unlikely to occur in common use. The developers have never been able to reproduce the bug organically and had to add special testing logic to SQLite that deliberately triggers the circumstances of the bug in order to verify that the issue has been fixed.” I was actually on a road trip with my girlfriend when I read about this, but I’m also a giant database nerd, so I was immediately nerd-sniped, hard. Bugs in SQLite, after all, are legendarily rare.…