[Moderator note: Please send all comments and problem reports to the news group news://news.mozilla.org/mozilla.dev.ports.os2]
"Thunderbird 2 RC 1 is the next generation release of the award-winning Thunderbird email client from Mozilla."
http://www.mozilla.org/ports/os2/
April 19, 2007 Thunderbird 2 has been released.
Release Notes: http://www.mozilla.com/en-US/thunderbird/2.0.0.0/releasenotes/
Requires a libc0.5.1 based version of the GCC runtime library.
http://www.innotek.de/index.php...
Note: This is EXACTLY the same build as Thunderbird 2 Release Candidate 1. If you installed that build, you do not need to upgrade.
Source: OS2VOICE