Download section has been updated with Medivia game client version 4.10 for tomorrow's patch.
Please note you cannot play with this game client as of today, but you will need it by tomorrow, so it might be worth getting it beforehand.
Also, please make sure to install Medivia to e.g. C:/Medivia and to avoid installation within Program Files directory like before
since the auto-update will have no rights in that path to make any changes (e.g. to download new files when a new patch is released).