Even though the new version of Pidgin (2.5.2) does not appear on http://pidgin.im/, it seems it was released, as you can see here.

Changes:
version 2.5.2 (10/19/2008):
libpurple:
* Fixed a crash on removing a custom buddy icon on a buddy.
* Fixed a crash caused by certain self-signed SSL certificates.
* Enable a number of strong ciphers which were previously disabled
when using NSS. (Thanks to Marcus Trautwig.)

.......