Thunderbird Release Notes
Here is a list of the security fixes for 2.0.0.24 along with a link for the listing.
Fixed in Thunderbird 2.0.0.24
MFSA 2010-07 Fixes for potentially exploitable crashes ported to the legacy branch
MFSA 2009-68 NTLM reflection vulnerability
MFSA 2009-62 Download filename spoofing with RTL override
MFSA 2009-59 Heap buffer overflow in string to number conversion
MFSA 2009-49 TreeColumns dangling pointer vulnerability
Fixed in Thunderbird 2.0.0.24
There is a mozilla wiki section on 2.0.0.24 that discusses bugs.
mozilla wiki: Releases/Thunderbird 2.0.0.24
This 2.0.0.24 update is being offered to me via Thunderbird's "Software Update" feature. I will be installing it right after this post. You may, unless I post otherwise, assume that the upgrade went without a hitch.
I plan on sticking with the 2.0.0.x branch until the 3.x branch appears a bit more "problem free."
[Edited to reflect appearance of the security fixes. profman 3/18/2010]
UserAgent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2) Gecko/20100115 Firefox/3.6 GTB6 (.NET CLR 3.5.30729)

