Ubuntu Trusty - pgRouting is 2.0

I just recently tried to use apt.postgresql.org to install PostgreSQL 9.5 on
a Ubuntu 14.04 box.

All went well and I even noticed it seems you now carry pgRouting.  However
you are carrying pgRouting 2.0 instead of the latest stable pgRouting 2.1.

Is there a reason for that or did I miss something?

I installed with this command:

sudo apt-get install postgresql-9.5-pgrouting


Thanks,
Regina