I have just upgraded to Gramps 5.1.1 under Win10 and noticed a small annoyance.
When entering data into any field in any data entry window and have the need to tab to another open window (to make sure I have got a detail correct for instance) and tab back to Gramps the cursor is now positioned at the beginning of the field, not the end where it was when I left. If I start (continue) typing the data is inserted at the start of the field. Therefore I have to remember to hit the ‘End’ key so as to position the cursor correctly.
But I already saw this on 5.0.2 (not 5.0.1) on my Ubuntu 18.04 box, and
now on 5.1.0 too, I haven't tried on 5.1.1 yet. A workaround for this,
for me, is not to type a space at the end of the line, then the cursor
is at the end when I move back to Gramps from another window. I haven't
created any bugreport about it just yet.