Thanks for the quick turnaround, Stefano. I have the test build (3.13.5-2+deb13u4 from your debusine workspace) installed on seven of my nine trixie/arm64 machines as of this morning, including five of the seven weewxd instances that exercised the crash. Each of those five has now completed its first post-install gc.collect() pass cleanly. The remaining two weewxd hosts go tonight; I'll follow up in a couple of days with the accumulated pass count across the fleet (for reference: deb13u3 crashed 4 times in ~130 passes; deb13u2 and, so far, deb13u4 have zero).
John Kline
