Little bits and pieces but mostly bug fixes - I like my shit working but maintenance is not my strong suit, more of a traveling contributor or drive-thru fixer.
I believe I fixed calling in one electron messenger.com wrapper before - that was fun but these days I usually try to help the game BAR whenever I have extra time.

Edit: Keep forgetting but I am also maintaining few apps on AUR, nothing big except for maybe one helper tool/calculator for EVE online