Latest release for O2 in the U.K. is G935FXXU1APDH, build date 18th April. Still waiting for the latest updates in the U.K. are... Virgin, EE and Three. Unbranded U.K. and Vodafone are up-to-date.
I know this doesn't help but I've got the June update on my edge duos so you should get yours soon. Syncing your phone to smart switch I think it is called on a computer allows you to download updates manually.