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To upgrade from a release prior to ExtendSim 10, go to Upgrade to ExtendSim 10.

To identify the ExtendSim release you are using, either:

  • from within ExtendSim go to Help > About ExtendSim.
  • or right-click the ExtendSim application icon in the Program Files folder and go to the Properties/Details tab.

Updating ExtendSim 10

ExtendSim 10.1.1 was released March 2, 2024. This free update not only optimizes the stability and quality of ExtendSim 10, but adds some new features and improves existing ones.

Updating ExtendSim 10.1.0 to 10.0.4...

If your current release is 10.0.4 or later, this single updater has the ability to update the following ExtendSim products.

  • Individual licenses of Pro, DE, CP, Analysis RunTime, or Student
  • Floating licenses (Client installations only) of Pro, DE, CP, or Analysis RunTime
  • Node-Locked licenses of Pro, DE, CP, or Analysis RunTime
  • Cloud licenses (ExtendSim portion only)
Updating ExtendSim 10.0.3 to 10.0.0...

If you are using ExtendSim Pro, DE, or CP (Individual or Floating) released prior to 10.0.4, the Trial version of ExtendSim is your updater. Download the Trial version of the package you purchased and install over your current installation of ExtendSim 10 (be sure you install 10.1.1 in the same location, using the same name as the previous installation). When you restart ExtendSim, you will be running 10.1.1.

ExtendSim 9.3.1 Updaters

ExtendSim 9.3.1 was released October 28, 2019. If you choose to continue to use ExtendSim 9, please be sure you are using the most current release. This free update for registered users not only optimized the stability and quality of ExtendSim, but added a number of new features. See the complete list at Added Features + Quality & Stability Enhancements in ExtendSim 9.

Updaters for earlier versions of ExtendSim


If you are using an earlier release of ExtendSim, be sure you are using the most current version of that release. If you need a patch file to update to the most current version as specified below, please contact the ExtendSim Team.

 Most current releaseDate of release
ExtendSim 9.3 9.3.1 October 28, 2019
ExtendSim 9.2 9.2.0 February 13, 2015
ExtendSim 9.1 9.1.0 February 10, 2014
ExtendSim 9.0 9.0.0 July 17, 2013
ExtendSim 8 8.0.2 August 18, 2011
ExtendSim 7 7.0.6 November 2, 2009
Extend 6 6.0.8 March 1, 2007