There are some problems I found with build 5209 so far:

1. Matching brackets are broken when going backwards in the file. Create some code such as the following

Now, move your cursor through the code backwards and you will see what I mean.

2. Code insight window does not remember the size you set and when moving down in the list the horizontal scroll bar comes and goes depending on the width of the currently selected function making the currently selected function hidden under the scroll bar until you hit the down arrow again. To reproduce this you must use your arrow keys rather than mouse.

both problems are fixed in v5.2 build 5210 which is already available.