From the webpage:
TeX Live 2015 is available for download now. It is also available on DVD from TUG and other user groups.
You can acquire TeX Live in many ways. For typical use, we recommend the first two:
- Installing TeX Live over the Internet (recommended, for installation over the network).
- Getting TeX Live on DVD (recommended, for installation from media).
- Downloading one huge ISO file (typically to burn your own DVD).
- Downloading several big tarballs (typically to do downstream development work).
- Mirroring/downloading the TeX Live repository (typically because you have problems with network installation, or have several machines to keep updated).
Enjoyable weekend update task!