Rumor suggests iOS 14 will run on all iOS 13 capable devices
The next major version of iOS will be supported on all devices capable of running iOS 13. In contrast, two models of iPad will not support the shift to iPadOS 14, according to a source with a dubious track record.

Apple periodically updates the list of devices that are compatible with iOS, removing older models, and reducing the number of devices the company has to support the software. Last year, Apple phased out the iPhone 5s, iPhone 6, and iPhone 6 Plus, as well as the sixth-generation iPod Touch.
With WWDC on the horizon, we're expecting to get news of the new iOS 14 and iPadOS 14 during the event, and with that, the possibility of device compatibility changes. France-based iPhonesoft has proposed that iOS 14 and will support all the same devices as iOS 13 does. They also include the iPhone 12, iPhone 12 Pro, and the rumored iPhone SE 2.
As far as iPadOS goes, they suggest the supported devices list will not include all the same iPadOS 13 compatible devices, with Apple dropping support for the iPad mini 4 and the iPad Air 2. They suggest the A8 and A8X chips will not be compatible with the new iPadOS.

Apple periodically updates the list of devices that are compatible with iOS, removing older models, and reducing the number of devices the company has to support the software. Last year, Apple phased out the iPhone 5s, iPhone 6, and iPhone 6 Plus, as well as the sixth-generation iPod Touch.
With WWDC on the horizon, we're expecting to get news of the new iOS 14 and iPadOS 14 during the event, and with that, the possibility of device compatibility changes. France-based iPhonesoft has proposed that iOS 14 and will support all the same devices as iOS 13 does. They also include the iPhone 12, iPhone 12 Pro, and the rumored iPhone SE 2.
- iOS 14 supported devices
- iPhone 11 Pro
- iPhone 11 Pro Max
- iPhone 11
- iPhone XS
- iPhone XS Max
- iPhone X
- iPhone 8 Plus
- iPhone 7
- iPhone 7 Plus
- iPhone 6s
- iPhone 6s Plus
- iPhone SE
- iPod touch (7th generation)
As far as iPadOS goes, they suggest the supported devices list will not include all the same iPadOS 13 compatible devices, with Apple dropping support for the iPad mini 4 and the iPad Air 2. They suggest the A8 and A8X chips will not be compatible with the new iPadOS.
- iPadOS 14 supported devices:
- 12.9-inch iPad Pro (2016 and 2017)
- 10.5-inch iPad Pro
- 9.7-inch iPad Pro
- 11-inch iPad Pro (2018)
- iPad Air 3
- iPad 7
- iPad 6
- iPad 5
- iPad Mini 5
Comments
The iPhone 6s survives another round of updates.
I remember all of the bogus false rumors about it not supporting iOS 13 and I was very happy when it was finally confirmed that it would indeed support 13.
If it were to support 14 also, that would be nothing short of amazing and a very nice surprise.
Even then, even if all the internal components were exactly the same—which they aren't, but I'd argue that most aren't a very big deal in terms of how the device operates between updates (e.g.: lack of barometer in the SE or the larger battery and bighter display in the 6S)— there is still other aspects of these complex devices. For example, Apple may have been able to increase performance with a larger iOS update or made it more efficient which the larger battery of the 6S could better utilize; and while I doubt that's the case, especially when looking at Primate Lab results for single and multi-core reports, that's not the only measure of these devices or way Apple can adjust how the device performs as they evolve their OS.
But none of that really matters as much as what Apple is willing to invest in testing for an old device to make sure it's reasonably safe and functional for users to upgrade. If there are 100x more 6S users than SE users out there then it would probably make financial sense to stop supporting the SE as a device. Personally, I wish Apple would support their devices even less than they do as people simply bitch every year that they aren't supporting them enough despite leading the industry by a large margin and then complain when a more complex and robust update may have the effect of making certain aspects feel slower than the previous version. They can't seem to win, and yet they continue to updates long after I think they should, which means they've done the math and figured out that this is the best strategy.
Details? I use Mail across several providers and there's zero issues.
1. Full adaptivity for touchpad/mouse and keyboard controls, aka when mouse is connected a macOS interaction model versus a ‘finger simulation mode’. This means right-click for contextual menus and a recent text selection mode, amongst other tweaks. When not using a mouse it shouldn’t dilute/deteriorate iPadOS concept as a touch-first OS.
3. A solution for multiple split windows that isn’t as horrible as the current one. I still find it very confusing and slow to manage multiple windows.
4. The ability to connect the iPad to an external monitor and get the native resolution of the monitor supported for multiple windows.
5. Better / faster Files management power options for when used with a mouse.
I don’t have problems with Mail at all when it comes to bugs and annoyances, other than that I feel they should rewrite the app entirely tech-wise and look at fresh ideas. It feels like one of these legacy apps they kept adding on to and patching throughout the years, versus ‘resetting‘ it altogether. It’s quite slow too (even more so it’s macOS counterpart).
The only reason I use Apple Mail is that I love their ‘card approach’ for emails that are drafted. You can easily reply to a mail and instead of sending, slide a card to the bottom and in a way keep a list of to-do’s. That is genius and no third party mail dev seems to have copied that.