The Wayback Machine - https://web.archive.org/web/20110707224645/http://www.beonex.com/communicator/version/0.8/release-notes/

Last-minute information about bugs, changes etc.

Important

Information every user should read.

All platforms

Profile gone
Problem: The bookmarks, mails etc. from older versions (and from Netscape 6/7 and Mozilla) don't show up in version 0.8.
Reason: Version 0.6-pre Windows shared its base profile folder with (Mozilla and) Netscape 6. This caused major problems, from resetted preferences to a completely disfunctional user interface. Thus, version 0.8 and following versions use a base profile folder specific to Beonex Communicator. However, no import routines for the old profiles have been written.
Workaround: To import your old profile manually, copy the contents of the old profile folder (on your harddisk) to the new one (automatically created). Then, delete localstore.rdf and the sub-folder chrome and adjust the path names in prefs.js.
Blank emails in As Plaintext modes
Problem: Some messages in Mailnews show no content at all, if View|Message Body as|As Plaintext is activated. The problematic messages are usually bulk mail or spam.
Reason: This is a remaining bug in the new As Plaintext feature.
Workaround: Use the Simple HTML mode. It's much better, anyways, and does what you probably really want.

Almost everything from the Mozilla 1.0.2 release-notes also applies to Beonex Communicator 0.8.2-stable.

Some FAQs about Mozilla might also be helpful.