This build (by Philip Chee) includes the latest security fixes like Mozilla Foundation Security Advisory 2015-78. SeaMonkey and Thunderbird do not ship the Firefox integrated PDF reader so we are not affected by this. However there are other security and crash fixes so do please help test these latest builds.
Rainer
The checksums for the zip file do not match the actual downloadable file. It seems that “seamonkey-2.35.en-US.win32-20150807.txt” contains the sums of the exe installer and not of the zip file.
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Combination of this build and (german) langpack looks good here. Thanks for providing! =)
Lightning upgraded to 4.0.2, and works, too.