Hi,
In order to get Tails builds reproducible, we had to refactor the way we
use vagrant in our build system [1]. Under the hood, a lot of our build
scripts have changed, but for most use cases the transition should be
transparent.
We released today all this changes, so for developers that are building
Tails, we strongly advise to have a look at the build documentation
[2] and adapt your usage.
[1] see tickets #11972, #11979, #11980, #11981 or #12409
[2]
https://tails.boum.org/contribute/build
bert.