[Koha] Upgrading using apt-get

[Stefano Bargioni]

After some tests for migrating from Koha 3.2.7, I'm going to start using Koha 3.12.5 in a production environment, on Debian.
In the meanwhile Koha had two patches (3.12.6, 3.12.7) and one release (3.14).
Will my next apt-get upgrade Koha to 3.12.7? Or to Koha 3.14, if its deb package becomes available?
If to Koha 3.12.7, how can I upgrade to Koha 3.14 when my library will be ready to move?
Thanks. Stefano