Please be aware that the authors of PGP might not acknowledge bug reports sent directly to them. The following list of bugs is limited to version 2.4 and later, and is limited to the most commonly seen and serious bugs. For bugs in earlier versions, refer to the documentation included with the program. If you find a bug not on this list, follow the procedure above for reporting it. To build an ELF binary for PGP 2.6.2, two changes to source files 80386.S and zmatch.
S are necessary.
MIT PGP 2.6 had a bug in the key generation process which made keys generated by it much less random. Fixed in 2.6.1. The added text does not appear in the PGP output after the signature is checked. MIT PGP 2.6.2 now does not allow header lines before the text of a clearsigned message and enforces RFC 822 syntax on header lines before the signature. Since this bug appears at checking time, however, you should be aware of this bug even if you use MIT PGP 2.6.2 - the reader may check your signed message with a different version and not read the output.