The async methods in .net code which were working fine in RC2 and died in RC3 have been resolved. All of the issues between RC3 and final release having to do with crashing upon exit with lua and python were likely affecting me for the same reasons as well.
Thanks for all the cleanup with strings and memory this past month (Victor and Andres?). Your work seems to have fixed my issues as well.
Loving the final cut so far.