I think I've fixed all crashes in 0.52, but it has a very serious performance issue opening notebooks that need to be fixed. Download the source tar.gz, untar it and apply the patch, then run zim from there. If you want to help me, this is what needs to be done for each new release: Download source code Run it from xterm, in no daemon mode and with debug output Test all new features and all changed features, look at the xterm output for crashes or problems Test with some big and complex notebook Fix any broken code Check usability of all new and modified dialogs Fix non usable dialogs Create patch Once zim is in good working state I'll build a new package (actually by hand but I want to get a working build script for the extras-devel autobuilder) and will upload it to the garage page. With the patch included here zim-0.52 will work, but the performance issue remains. If you feel up to the task, profiling will show where most of the time is spent, then looking at 0.48-0.49-0.50-0.51 will show what changes cause the issue.