This is a list of the licenses used in the different TrueCrypt versions.

**Note:** 4.3a and 5.1a were re-released in the _past versions_ section on truecrypt.org, with newer licenses. This means that if you downloaded the earlier release, you can use it under the earlier license.

* 1.0, 1.0a: `TRUECRYPT LICENSE`
* 2.0: `GNU GPLv2` (No, I'm not kidding)
* 2.1, 2.1a, 3.0, 3.0a, 3.1, 3.1a: `TRUECRYPT LICENSE`
* 4.0, 4.1, 4.2: `TrueCrypt License Version 2.0`
* 4.2a: `TrueCrypt Collective License Version 1.0` (`TrueCrypt License Version 2.1`)
* 4.3: `TrueCrypt Collective License Version 1.1` (`TrueCrypt License Version 2.2`)
* 4.3a (`truecrypt-4.3a.zip`): `TrueCrypt Collective License Version 1.2` (`TrueCrypt License Version 2.3`)
    * 4.3a re-release (`TrueCrypt Setup 4.3a.exe`): `TrueCrypt Collective License Version 1.3` (`TrueCrypt License Version 2.4`)
    * 4.3a second re-release (`TrueCrypt Setup 4.3a-2.exe`): `TrueCrypt Collective License Version 1.4` (`TrueCrypt License Version 2.5`)
* 5.0, 5.0a, 5.1, 5.1a: `TrueCrypt Collective License Version 1.3` (`TrueCrypt License Version 2.4`)
    * 5.1a re-release (`TrueCrypt Setup 5.1a-2.exe`): `TrueCrypt Collective License Version 1.4` (`TrueCrypt License Version 2.5`)
* 6.0, 6.0a: `TrueCrypt Collective License Version 1.4` (`TrueCrypt License Version 2.5`)
* 6.1, 6.1a, 6.2: `TrueCrypt License Version 2.6`
* 6.2a: `TrueCrypt License Version 2.7`
* 6.3, 6.3a: `TrueCrypt License Version 2.8`
* 7.0, 7.0a, 7.1, 7.1a: `TrueCrypt License Version 3.0`
* 7.2: `TrueCrypt License Version 3.1`