GNUnet 0.21.0 released

We are pleased to announce the release of GNUnet 0.21.0.

GNUnet is an alternative network stack for building secure, decentralized and
privacy-preserving distributed applications.
Our goal is to replace the old insecure Internet protocol stack.
Starting from an application for secure publication of files, it has grown to
include all kinds of basic protocol components and applications towards the
creation of a GNU internet.

This release marks a noteworthy milestone in that it includes a completely
new

transport layer

.
It lays the groundwork for fixing some major design issues and may also
already alleviate a variety of issues seen in previous releases related to
connectivity.
This change also deprecates our testbed and ATS subsystem.

This is a new major release.
It breaks protocol compatibility with the 0.20.x versions.
Please be aware that Git master is thus henceforth (and has been for a
while)

INCOMPATIBLE

with
the 0.20.x GNUnet network, and interactions between old and new peers
will result in issues.
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 0.21.0 release is still

only suitable for early adopters
with some reasonable pain tolerance

.

Download links

• 
  gnunet-0.21.0.tar.gz
  
  (
  
  signature
  
  )
• 
  gnunet-0.21.0-meson.tar.gz
  
  (
  
  signature
  
  )
  
  NEW: Test tarball made using the meson build system.
  
• 
  gnunet-gtk-0.21.0.tar.gz
  
  (
  
  signature
  
  )
• 
  gnunet-fuse-0.21.0.tar.gz
  
  (
  
  signature
  
  )

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

http://ftp.gnu.org/gnu/gnunet/

Changes

A detailed list of changes can be found in the

git log

, the

NEWS

and
the

bug tracker

.

Known Issues

• There are known major design issues in the 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.

In addition to this list, you may also want to consult our bug tracker at

bugs.gnunet.org

which lists about 190 more specific issues.

Thanks

This release was the work of many people. The following people contributed code and were thus easily identified:
Christian Grothoff, t3sserakt, TheJackiMonster, Pedram Fardzadeh, dvn, Sebastian Nadler and Martin Schanzenbach.