With "openssl version -a" you can see the built time.

  root@x ~ # openssl version -a
  OpenSSL 1.0.1 14 Mar 2012
  built on: Mon Apr  7 20:33:29 UTC 2014

Same here.

I got a "security warning" update when I logged in to the server (good), ran apt-get and installed, did openssl version, got the string as noted above (which seemed just a tad out of date).

So... I built and installed from source, and got... the same string.

Annoying.

My Linux Mint machine (based on 13.10) went from 1.0.1e Feb 2014 to 1.01 Mar 2012 int the last 2 hours, so that's definitely new.

try: dpkg -s openssl