Hi Everyone, in 7.15 CU4 site, we want to upgrade VDA (app servers) to CU9 (only the VDA software on the app servers). Does this cause any corruption in the 7.15 CU4 site?

No it shouldn't. Mixing CU4 and CU9 VDA's in the same pool or site shouldn't cause any corruptions, but double check migration path in Citrix doco perhaps. 🙂 Otherwise create a new MC with the updated image and add those VDA's to the same Delivery group, if you want to keep them separate.

You can update the VDA here. Not sure why things are 7.15 still. But I'm sure you have environmental reasons

Thank you guys.. To us, 7.15 is still new. we run old environments still.