topic Re: How to know if a version is LTS ? in FlexSim Installation & Licensing Forum

How to know if a version is LTS ?

leah_rifi — Wed, 17 Jun 2026 11:58:07 GMT

Hello,

I am using version FlexSim 25.0.9 (64-bit) and one of my student a 26.x.x version. Which LTS version should we use to work together? I do not mind upgrading, and she does not mind going for a lower version.

Thanks in advance,

Best,

Leah

Re: How to know if a version is LTS ?

leah_rifi — Sun, 21 Jun 2026 14:58:35 GMT

Hello,

Still looking for an answer.

Best,

Leah

Re: How to know if a version is LTS ?

Ben_WilsonADSK — Mon, 12 Oct 2026 12:17:12 GMT

FlexSim models saved in a newer version are not compatible with earlier versions. For instance, a model saved in FlexSim 26.0.x will not be able to be opened in FlexSim 25.0.y. This does not apply to bugfixes of the same feature release (for instance, a model created in 26.0.3 can be opened by 26.0.2), but in general you should always upgrade to the latest bugfix release of your licensed version. For this reason, the best answer is for you to upgrade to the newer version.

To directly answer your question, we only have one LTS version at a time. Currently that is 26.0.

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