Microsoft has announced that (the embedded) Flash for IE11/ActiveX & Edge on Win10 was finally updated to 20.0.0.272
https://technet.microsoft.com/library/security/2755801
https://support.microsoft.com/en-us/kb/3133431
Remark: Based on the change in wording in the above document... as well as "confirmed" on my Win8.1 tablet... there has NOT (yet?) been a corresponding update for Win8.x