drl431 , Nov 23, 2020 : When its ready, maybe Q2 next year (considering the OP5/5T and OP3/3T final updates). But you should try using the forum search tool as this question comes up every day.
the_o2 , Nov 23, 2020 : Furthermore https://forums.oneplus.com/threads/software-update-excitement-thread.993639/
Prasiii , via OnePlus 6 , Nov 24, 2020 : Yes My Friend! We will get for sure on or before March 2021.
L1582210487141 , via OnePlus 6 , Nov 25, 2020 : actually I have oneplus 6 with hydrogen os it's pretty fast but I wanna use oxygen and I don't wanna root my oneplus so I thought maybe I can install android os 11 with oxygen os instead of hydrogen Hope you get that
Vigneshxchan , via OnePlus 6 , Nov 28, 2020 : Maybe December end or early next year ! Actually very much looking forward how Android 11 will run on my OnePlus 6. Kinda a deciding factor for many !
Matt 80 , Nov 28, 2020 : Nope. If previous updates are anything to go by, it will almost certainly get the 11 update during Q2 next year.