Six years ago Exchange took a bold step forward in product servicing. With Exchange Server 2007 we shifted to a cumulative model to deliver customer rollup updates (RU’s) instead of a traditional hot...
Updated Oct 08, 2020
Version 3.0
Blog Post
I think the lack of support every 6 months is ridiculous to be honest. It requires Exchange administrators to make major modifications to the Exchange environment every 6 months which is a lot to ask. Especially given that all customizations will need to be re-applied.
With Microsoft's track record in the lack of quality around Exchange patches, there really needs to be an uninstall option here. Either that or fix the testing process to catch whatever issues that keep slipping best your quality assurance process.
I do like the fact that new installs can go right to the latest CU though. That'll help speed up deployment new servers. It's just the ongoing operations that concerns me.