This message "WARNING: Using TrueCrypt is not secure as it may contain unfixed security issues" is very disturbing.
It can be a hidden message "do not use newer versions of TrueCrypt, programmers are forced to advertise Microsoft software with backdoor and to include backdoor to the version 7.2".
On the bottom of the website the message is different: "WARNING: Using TrueCrypt is not secure". It can be interpreted: "this version of TrueCrypt contains backdoor, do not use it".
This red warning above the download links should be enough to convince you not to click on the links! (Archive.)
I am still using the old version.
The latest version (before 7.2) was 7.1a: Google Drive.
$ sha512sum TrueCrypt\ 7.1a\ Source.tar.gz b5e766023168015cb91bfd85c9e2621055dd98408215e02704775861b5070c5a0234a00c64c1bf7faa34e6d0b51ac71cd36169dd7a6f84d7a34ad0cfa304796a TrueCrypt 7.1a Source.tar.gz $ md5sum TrueCrypt\ 7.1a\ Source.tar.gz 102d9652681db11c813610882332ae48 TrueCrypt 7.1a Source.tar.gz
The PGP key of the TrueCrypt Foundation may be compromised. Therefore, you should not trust to their signatures - compare the sha512sum with the checksum of the my copy of TrueCrypt (downloaded from TrueCrypt.org several months ago) and other copies.
Ask your trusted friends about checksums of their copy of TrueCrypt (downloaded months before). And install only from the genuine source code version 7.1a.
It is not possible to be disproved that BitLocker contains a backdoor! Do not use closed source encryption software!