Issues? with iPhone on IOS 13 and iPad on IOS 14

[CTHarrryH]

Any issues with different devices on same Apple ID running these different versions of IOS? Although I haven't done before I'm tempted to update my iPad to IOS 14 to get used to it. However, I don't want problems on my iPhone.
Thanks

 

[gwang73]

I updated both to B6 now but before B6, I was running iPadOS 14 with iPhone 13 and Big Sur on my Mac and there was no issues at all between the devices syncing via iCloud.
The only issue I've seen is that some have reported that Notes was crashing but I haven't experienced that myself.

 

[IowaLynn]

After putting iOS 14 and having WiFi issue with new Private Address, I got out older iPhone X that was factory reset to compare iOS 13.

trouble began after using phone with 14 to setup the X and now keep seeing it wants but can’t complete the setup, even after going through Settings to turn off anything.

But yes normally ok except when there were changes to iCloud and photo structure so that older versions had trouble if converted during update.