| 28 Sep 2011 | | Updated language: Serbian | |
| 21 Sep 2011 | | Ultimate Calendar 1.5 Final released | |
| 30 Aug 2011 | | Ultimate Calendar 1.5 RC2 released | |
| 18 Aug 2011 | | Ultimate Calendar 1.5 RC released | |
| 20 Jun 2011 | | Ultimate Calendar 1.5 Beta 2 released | |
| 25 Nov 2010 | | Added additional dates set: Name-days, Ukrainian | |
| 20 Sep 2010 | | Additional dates sets are avaliable for downloading | |
| 30 Mar 2010 | | Added language: Spanish | |
| 08 Mar 2010 | | Ultimate Calendar 1.1 Final released | |
| 10 Dec 2009 | | Added language: Croatian | |
| 08 May 2009 | | Added language: Hebrew | |
| 04 May 2009 | | Trial version: Cut the restriction on the use languages – to release included all available language files | |
| 29 Apr 2009 | | Ultimate Calendar 1.0 Final released | |
