Hi Dan,
Sorry for the long wait for a reply. We are still working on an upgrade document, but I thought I would respond to your specific points in any case.
2) The tiny ToolBar height has been fixed in post 6.4.0Beta1c codebase. See this thread here.
3) You are correct about the ToolBar EventArg changes. This has been discussed multiple times on the forums and is explained in the breaking changes documentation on the wiki here. The reason being that the Click event on the ToolBar itself is now for the ToolBar only, but not it's buttons where you would use ToolBar.ButtonClick.
4) I would like more specifics on this. Do you mean there is a property name(s) that is not supported on 6.4 but where supported on 6.3, or do you mean that the functionality is not there any more. Please explain.
5) I assume you are refering to the theme samples, downloadable seperately, right ? If so, then these themes are from a very early stages of version 6.4 and they do need an update and they will be in due time.
6) Can you please clarify if you are comparing to a version 6.3.x performance here, or if you mean this just as a general statement for the DataGridView? In any case, a major effort has been made in the upcoming Beta2 release for performance so I am sure you will get a much better performance once Beta2 is out.
7. I must admit that I have never noticed this. Did this not occur on 6.3? Any situation more than others that will show this message?
8. I again reference the Wiki breaking changes article. If you do have some more compile errors please let us know the specifics so we can add them to the list.
Thank you very much for your notes.
Palli