I will only list three.
1) TMs must be re-indexed WAY too often when they didn't use to need to be re-indexed at all.
Context: I pull most TMs down from WorldServer. This last project was small and only had something like 52 TUs. I made a translation, added it to the TM, and the very next TU should have been a 99% hit from the previous TU. Nothing showed up. I had to re-index the TM to show the unit I had just added. This has happened in several projects and several times since the update.
2) MultiTerm term recognition decides if it wants to work or not.
Context: Term recognition is on-again, off-again....literally. In one unit, I'll get my suggestions. In the very next unit, nothing. This problem is solved temporarily by restarting Studio.
3) Deleting units in TM makes lingering ghost TUs until called back home to TM heaven, I suppose.
Context (also see above #1): If I add a unit to the TM and I discover an error later, I can delete the faulty TU from the TM with Ctrl+Del, but it doesn't disappear right away (it doesn't even disappear after Ctrl+Del!). It will still be presented as a suggestion even though it's not even in the TM anymore (checked the TM view). At some point, they do stop appearing as suggestions but seems very random. Re-indexing fixes this as well.
Not real happy about having to re-index all the time now even for extremely small memories. Or having to restart Studio because my term recognition breaks.