APT version 1.0
From Phoronix:
Debian developers announced this week version 1.0 of APT, their Advanced Packaging Tool, on the day that the packaging project turned sixteen years old.If this where Chrome or Firefox, they would be in the hundreds by now.
APT was conceived sixteen years ago on 1 April and on 1 April of this year they celebrated its "sweet sixteen" by releasing APT 1.0. This was no April Fool's Joke. One of the new features to APT 1.0 is a new apt binary that has most of the commonly used commands from apt-get and apt-cache.