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Client later version than AOS

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Posted on by BrandonSA

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Hi everyone

If you update Ax 2012 CU9 to CU 13, you'll need to update the clients that connect to it as well. If you don't, (ie. If you use an outdated client) you'll run into problems.

Can you however, update the client (to CU13) and still connect to a CU9 AOS? (ie. run a NEWER client with an older AOS). There are situations where this might be needed.

Is it possible?

Thanks

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André Arnaud de Cal... 292,884 Super User 2025 Season 1 on at

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RE: Client later version than AOS

Hi Brandon,

It might be possible to connect newer clients on an older AOS, but it is not recommended and not supported. There might be dependencies between the client and server executables.

As example, at a customer, we got a hotfix from Microsoft which solved an AOS crash. It was working for all updated clients. However the installation push to the clients failed to some machines and these clients caused the same AOS crash.

Can you tell about the situation where you need this?
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Fangyuan Hou on at

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RE: Client later version than AOS

Hi BrandonSA,

Technically, we need make sure the client and AOS version are in the same version, there may have some unexpected exceptions happens if there is a big gap between client and Server.