Will CI 3.x work properly with PHP 8.x?

All of our webapps are using CI 3.1.11 with PHP 7.3.x.   To get ready for the upgrade to PHP 8.x on our webservers, I am trying to determine if the current CI 3.1.11 will officially work on PHP 8.x or not.   The documentation just states the min PHP version, but not whether PHP 8 is (or is not) supported.   

If not, I noticed their is a unreleased version of CI 3.2.x in the git repo.   
Will 3.2.x support PHP 8.x when it is released?   

One more thing:   Perhaps CI 3.1.x works in PHP 8.x very well, except for some of its libraries and/or helpers that break if called in PHP 8.x.   It would be helpful to know this as well with a list of those libraries and helpers that break under PHP 8.x.   My webapps only use a very limited set of these components, so that might not prevent me from upgrading to PHP 8.x - and then I can make the migration from CI 3.x to CI 4.x later as time permits. 

I have been using CI 3.x for many years and found it to be very easy to learn and build great webapps.
Thank you all developers and maintainers of CI for keeping it a great framework!