This week is World Green Building Week with numerous events taking place around the Globe. Be sure to check out the World Green Building Council list for events taking place in your region:
Also improved with this release is the automatic zoning of the energy model. Previously zones were divided based on points of the compass, now they are divided based on the building geometry - which overcomes the sometimes rather odd divisions you got before:
Finally check out the parameters slider add-in that works with 2.1, more details here: