Will this support iPhone 6 plus

Yes.

iOS 13 - https://www.apple.com/ios/ios-13/

iOS 13 is compatible with these devices.

iPhone 11

iPhone 11 Pro

iPhone 11 Pro Max

iPhone XS

iPhone XS Max

iPhone XR

iPhone X

iPhone 8

iPhone 8 Plus

iPhone 7

iPhone 7 Plus

iPhone 6s

iPhone 6s Plus

iPhone SE

iPod touch (7th generation)

Yes and I admitted to that error. However, the list of supported devices was copied and pasted from the Apple document and only talks about the 6s.

So I was wrong about saying the 6 was supported (and acknowledge your correcting me, for a second time, about this). Your post in that regard was far superior to mine and I humble myself before you.

I was correct in the list I posted and the link I used to generate that and which I invite the original poster of this question to read. I was not wrong in the list nor in the link I posted so a reader can verify information (one way or the other) about statements I make.

By the way, the list indicates which models are supported and since it only mentions 6s and not 6 then by omission it indicates the 6 is not supported and therefore contains the correct information as I stated in my second post. My only error was in misreading the model number the OP has, and I apologize to you and the OP and the whole world about getting that wrong. Done.

No. The iPhone 6 Plus is not supported.

The iPhone 6s Plus which is a different device is.

Thanks, missed the "s". But the list I provided still supplies the correct answer (as well as the link from which I got the list).

Uhh no. The iPhone 6 (no S), is not supported with iOS 13.

The iPhone 6s is.

OP's question was, unless updated, about the iPhone 6, not the 6s

Yes, the link is the correct link. Was never arguing about that.

Just that you said the 6 was supported is all.

Its fine, its explained and hopefully understood by the OP.