0.26 is in experimental for quite a while. As far as I can see the
problem is that it needs a transition but that is not happening. I don't
know how that works, but from what I read the next steps would be
opening a transition bug and starting binNMUs against the rdeps. I think
the two versions
Package: exiv2
Version: 0.25-3.1
Severity: wishlist
There have been many bugs fixed and features added since the last release two
years ago. There has been progress on topic related to open bugs, so these
might be fixed. Also digiKam now depends on exiv2 0.26 due to many stability
improvements