Will Unity4 publish a 64bit Editor like Unity5?

Our game has a big amount of assets, and a complex build pipeline. 32bit Editor can not afford the memory support, it often crashes at building phase because of out of memory exception.
We've tried 64bit Editor of Unity5, which can successfully complete the building pipeline, but after our evaluation we have a conclusion that Unity5 will bring too many risk to our game and Mono3.x is slower than Mono2.x. So we can not migrate to Unity5 because there are over 5 million people play our game everyday, any small mistake will be crushing.
So we wonder if there is any possible that we can get the 64bit Editor of Unity5?

 

Nope. Try 5.3 - it may be worth the upgrade especially since there's been a lot of fixes and performance increases.

You could reach out to support@unity3d.com and get advice, maybe even paid support.

 

Thx for your quick reply, where can I find 5.3? I can only find download link of 5.2.3 and 5.2.3p1 and homepage.

 

Oh, I've found it!