Upgrade scheduler for AKS enables you to have a flexible schedule for your auto-upgrade channel. This helps provide more control to the set and forget model with additional cadence possibilities and a ‘Not allowed’ timeframe.
If you are currently using the planned maintenance preview feature, you are encouraged to use the upgrade scheduler feature instead. The existing planned maintenance preview will eventually be relegated only for AKS weekly releases and the new auto upgrade scheduler will become the de facto maintenance scheduler for auto-upgrades.
Learn more.