From the Ardour forum
For those who build ardour from source, please read: git/master is now considered an unstable pre-release branch. The “pianorule” branch has been merged, and will cause significant breakage for a while yet.
master has been tagged 9.0-pre0 which will (a) cause a major version switch (b) will generally display the pre-release warning dialog every time unless you grep the source code to find the name of the file to create to disable it.
If you need to build an earlier version of Ardour from a git repository, please use git checkout VERSION first to avoid building this unstable master branch.
We will be working over the next few months to get this into shape for a 9.0 release with several notable new features (region FX, clip recording and clip editing among them).
Pinned Comments
Gimmeapill commented on 2017-08-18 10:40 (UTC) (edited on 2018-02-14 11:01 (UTC) by Gimmeapill)
This package will automatically retrieve and build the latest development snapshot of Ardour from git.
It does not need to be updated on every release, so please do not flag out of date unless the build breaks.