This is a bugfix release for v188.8.131.52 beta.
There was a bug in older DropboxPortableAHK versions, which would lead to an error when using v184.108.40.206.
An error message would have been displayed, saying ‘Could not query instance db, probably the key was wrong.’
v220.127.116.11 fixes that.
Please check out the user group for more information, the download link, and to report any issues: https://groups.google.com/forum/#!forum/dropboxportableahk