This page explains the current status of the translations in GnuCash. There is a separate introduction into Translation in general, but this page explains where you are invited to work on and where not.
See also http://lists.gnucash.org/pipermail/gnucash-devel/2009-January/024700.html but the branch names there are not any longer up to date.
Unstable 2.7.x releases
As of October 2017, we are releasing 2.7.x versions regularly and they should now include the correct translation as well. Releases are planned for the last week of each month until we're satisfied with the quality, at which point we will release 3.0, with a current target of last week of March 2018. String Freeze is active as of January 2018 (release 2.7.3) in order to provide translators 2 months, including a release, before the stable release.
The 2.7.x release series ("unstable" branch) is now the current place where translation work should be done. All translations from the 2.6 branch have been copied over to unstable on 2018-01-13 (and subsequently merged with unstable's pot template).
Again: Please work on the "unstable" branch of Git for your translation work, if you retrieve the code from Git.
Committers: Gnucash Documentation 2.7.x Series
There is a separate unstable branch for documentation.
As with the application translations all documentation translations should happen on that branch. Double check Documentation Release Process#Branching Policy.
Gnucash 2.6.x is nearing end of life, with one final release planned together with the 3.0 release. If you still have translation fixes that need to be applied before that release, please coordinate with the gnucash developers (via mailto:firstname.lastname@example.org or IRC) on how best to handle this.
No more gnucash-2.4.x
The development of the 2.4.x branch has ended in winter 2013 Gnucash-2.4.15 was the last release of that branch. Please do not continue any translation work on the 2.4 branch of GnuCash!
No more gnucash-2.2.x
The development of the 2.2.x branch has ended in spring 2009! Gnucash-2.2.9 was the last release of that branch. Please do not continue any translation work on the 2.2 branch of GnuCash!
No more gnucash-2.0.x
The development of the 2.0.x branch has ended in spring 2007! Gnucash-2.0.5 was the last release of that branch. Please do not continue any translation work on the 2.0.x branch of GnuCash!
No more gnucash-1.8.x
The development of the 1.8.x branch has ended in fall 2005! gnucash-1.8.12 was the last release of that branch. Please do not continue any translation work on the 1.8.x branch of GnuCash!