BF3 moved to Monolith. All old launchers will not work.
You can continue playing without ZLOrigin. But in ZLOrigin works friends and in-game overlay, also some other EA games aviable. And BF4 too.
How to update:
1. Download ZClient from FAQ
2. Download and unpack with overwrite Client.zip
3. Download new launcher here
How to run:
1. Run ZClient, wait for "Auth success.."
2. Run launcher.
FAQ will be updated with time.
Also new R40 BF3 server with crack here
Also new ban system, which you can saw as Wahaha bans, in short - its much better, but can be some wrong bans.