How do we tell what version of the platform we are on?

Well from the Dynamics CRM 2013 Deployment we can see the list of Organisations along with their version numbers.

 
The version can also be found by clicking on the Settings (Cog) > About within CRM 2013:


So what are the version numbers for Dynamics CRM 2013 and Dynamics CRM 2013 SP1?

Dynamics CRM 2013 SP1

Initial Release 6.01.00.0581

Cumulative Update / Rollup
Version
Released
Update Rollup 1
6.01.01.0132
September 2014
 
Dynamics CRM 2013

Initial Release 6.00.00.0809

Cumulative Update / Rollup
Version
Released
6.00.01.0061
December 2013
6.00.02.0051     
April 2014
6.00.03.0106
July 2014
 
Until next time

@simonjen1