- Joined
- Jul 21, 2021
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- 23
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- 13
We are testing 3CX 18 and the new Windows client. We started with 18.1.6, this then auto-updated to 18.3.6.
During the first start it asks to add Firewall Rules, then after upgrade it asks to add them again. If approved it adds new rules, but after upgrading it does not remove old rules.

Do upgrades clean-up the old versions?
During the first start it asks to add Firewall Rules, then after upgrade it asks to add them again. If approved it adds new rules, but after upgrading it does not remove old rules.

Do upgrades clean-up the old versions?