Does this support iPadOS 14 A12?

[waterdragon78]

What the title says. I have an iPad Pro 3 2018 WiFi and blobs for 13.6. I am on 14.0 if it helps.

[blanxd]

this one doesn't at the moment, there's a fork that should though, they say the current SEPOS (14.2) is good for anything 13.4 and up (but the baseband isn't).

[waterdragon78]

Also can I do without jailbreak?

[blanxd]

If you want to install an iPadOS that isn't signed any more by Apple, you'd need to have your shsh blob saved when it was still signed (with an additional procedure to get an apnonce off your device since you have an A12X device). Else it really depends if you have rebooted since saving that apnonce, if you haven't then it might even work without a jb (a jb would be necessary to set your nonce generator 1st so the apnonce would match what was saved earlier).

This would be a very compact explanation of the whole topic :) to get more into this you better search the topic on /r/jailbreak on reddit.com.