Disclaimer This protocol specification is a draft. It's currently under constant revision by its team members or by its reviewers: Nik Unger or Ian Goldberg.
This is the protocol specification for Off-the-Record Messaging Protocol version 4.
The work made hare was partially supported by the NlNet Foundation. Find information here.
Licensing and Use
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
The OTR team does not review implementations or specify which ones are compliant are not. Software implementers are free to implement this specification in any way they choose - under limitations of software licenses if using existing software.