@u4iia you can break a network switch upgrade into stages now. Once you schedule the upgrade there is an option under Switch / Staged Upgrades where you can edit the schedule and add additional upgrade windows:
![Screenshot_20211028-092325_Chrome.jpg Screenshot_20211028-092325_Chrome.jpg](https://community.meraki.com/t5/image/serverpage/image-id/20673i8DC1380F4959B37F/image-size/medium?v=v2&px=400)
I have successfully used this on a stack of three MS355X switches to upgrade the master first and then the other two switches 5 minutes later. I was onsite and it did follow the plan with no obvious negative issues.
I have also used it on non-stacked switches many times without a problem.
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