Update 23-Jul-2017 -- Since #4036 experimental features are documented in docs/experimental-features.md.

IPFS currently has a few different features that are in the 'experimental' phase. This might be because we arent fully confident in releasing the code as an official feature yet, or because we don't want to make a certain change to the network yet. Whatever the case, we should have a log of all of those features and their states.

Lets use this issue to track the state of these features, and maybe think about putting this info in a doc that we commit to version control.

Originally posted by @whyrusleeping in ipfs/kubo#3397