GNUnet 0.15.0 released

We are pleased to announce the release of GNUnet 0.15.0.
This is a new major release. It breaks protocol compatibility with the 0.14.x versions. Please be aware that Git master is thus henceforth INCOMPATIBLE with the 0.14.x GNUnet network, and interactions between old and new peers will result in issues. 0.14.x peers will be able to communicate with Git master or 0.14.x peers, but some services - in particular GNS - will not be compatible.
The MESSENGER service goes out of experimental to be used by libraries and applications as dependency. It handles decentralized messaging in flexible groups by using the CADET service and messages can be signed with your ego from the IDENTITY service. The service is still in an early stage, so its protocol (currently version 0.1) will likely adapt or change in future releases to some degree.
In terms of usability, users should be aware that there are still a number of known open issues in particular with respect to ease of use, but also some critical privacy issues especially for mobile users. Also, the nascent network is tiny and thus unlikely to provide good anonymity or extensive amounts of interesting information. As a result, the 0.15.0 release is still only suitable for early adopters with some reasonable pain tolerance.

Download links

The GPG key used to sign is: 3D11063C10F98D14BD24D1470B0998EF86F59B6A

Note that due to mirror synchronization, not all links might be functional early after the release. For direct access try

Noteworthy changes in 0.15.0 (since 0.14.1)

  • GNS:
  • SCALARPRODUCT: Crypto ported to libsodium improving performance. #6818
  • RECLAIM: Added support for BBS+ blind signature credentials for selective disclosure.
  • UTIL:
    • Swap gnunet-config's default behaviour for the rewrite flag.
    • Config file is not not always written
    • Introduced new TIME helper functions
  • SETU: Implemented set union subsystem along with technical specification LSD0003.
  • MESSENGER: New messenger component moved out of experimental.

A detailed list of changes can be found in the ChangeLog and the bug tracker.

Known Issues

  • There are known major design issues in the TRANSPORT, ATS and CORE subsystems which will need to be addressed in the future to achieve acceptable usability, performance and security.
  • There are known moderate implementation limitations in CADET that negatively impact performance.
  • There are known moderate design issues in FS that also impact usability and performance.
  • There are minor implementation limitations in SET that create unnecessary attack surface for availability.
  • The RPS subsystem remains experimental.
  • Some high-level tests in the test-suite fail non-deterministically due to the low-level TRANSPORT issues.

In addition to this list, you may also want to consult our bug tracker at which lists about 190 more specific issues.


This release was the work of many people. The following people contributed code and were thus easily identified: Christian Grothoff, Daniel Golle, Alessio Vanni, Thien-Thi Nguyen, Elias Summermatter, t3sserakt, TheJackiMonster and Martin Schanzenbach.