The team behind the Open Crypto Audit Project has posted a verified repository of TrueCrypt 7.1a on GitHub. There are versions for Windows, Linux and OS X. The developers behind TrueCrypt posted a notice on their Web site and SourceForge page in late May saying that the software was not safe to use because it might contain unfixed security vulnerabilities. Speculation arose immediately that perhaps the team had been targeted by a National Security Letter, a la Lavabit, or maybe the developers were sending a subtle message about a backdoor in the application.
Source: https://threatpost.com/audit-project-releases-verified-repositories-of-truecrypt-7-1a/106569/