Subsystem stability

This page documents the current stability of the various GNUnet subsystems. Stability here describes the expected degree of compatibility with future versions of GNUnet.

For each subsystem we distinguish between compatibility on the P2P network level (communication protocol between peers), the IPC level (communication between the service and the service library) and the API level (stability of the API).

P2P compatibility is relevant in terms of which applications are likely going to be able to communicate with future versions of the network. IPC communication is relevant for the implementation of language bindings that re-implement the IPC messages. Finally, API compatibility is relevant to developers that hope to be able to avoid changes to applications built on top of the APIs of the framework.

The following table summarizes our current view of the stability of the respective protocols or APIs:

Todo

Make table automatically generated individual pages?

Subsystem

P2P

IPC

C API

util

n/a

n/a

stable

arm

n/a

stable

stable

ats

n/a

unstable

testing

block

n/a

n/a

stable

cadet

testing

testing

testing

consensus

experimental

experimental

experimental

core

stable

stable

stable

datacache

n/a

n/a

stable

datastore

n/a

stable

stable

dht

stable

stable

stable

dns

stable

stable

stable

dv

testing

testing

n/a

exit

testing

n/a

n/a

fragmentation

stable

n/a

stable

fs

stable

stable

stable

gns

stable

stable

stable

hello

n/a

n/a

testing

hostlist

stable

stable

n/a

identity

stable

stable

n/a

multicast

experimental

experimental

experimental

mysql

stable

n/a

stable

namestore

n/a

stable

stable

nat

n/a

n/a

stable

nse

stable

stable

stable

peerinfo

n/a

stable

stable

psyc

experimental

experimental

experimental

pt

n/a

n/a

n/a

regex

stable

stable

stable

revocation

stable

stable

stable

social

experimental

experimental

experimental

statistics

n/a

stable

stable

testbed

n/a

testing

testing

testing

n/a

n/a

testing

topology

n/a

n/a

n/a

transport

experimental

experimental

experimental

tun

n/a

n/a

stable

vpn

testing

n/a

n/a

Here is a rough explanation of the values:

Todo

0.10.x is outdated - rewrite “stable“ to reflect a time-independent meaning.

stable

No incompatible changes are planned at this time; for IPC/APIs, if there are incompatible changes, they will be minor and might only require minimal changes to existing code; for P2P, changes will be avoided if at all possible for the 0.10.x-series

testing

No incompatible changes are planned at this time, but the code is still known to be in flux; so while we have no concrete plans, our expectation is that there will still be minor modifications; for P2P, changes will likely be extensions that should not break existing code

unstable

Changes are planned and will happen; however, they will not be totally radical and the result should still resemble what is there now; nevertheless, anticipated changes will break protocol/API compatibility

experimental

Changes are planned and the result may look nothing like what the API/protocol looks like today

unknown

Someone should think about where this subsystem headed

n/a

This subsystem does not implement a corresponding API/protocol