Hypixel server 1.6.4 and 1.7.2 : How is it possible?

Hi guys,
Recently i knew that the server of hypixel allows players to play with two different versions at the same time, so if i have got 1.6.4 version i can see another player with 1.7.2 version.

Can someone else explain me how is this possible please?

Thank you guys!

 

DardoTheMaster
There is a line in the code that confirms if the client has the correct version.
Someone edited this code to allow not only clients with 1.6.4 to join, but 1.7.2 too.

 

They cant use any of the new stuff though, it just allows people with 1.7.2 to connect

 

The change to allow 1.7 was not 1 line of code...

It was a full network rewrite (<1000 lines)

1.7 completely changed the networking system.

 

Let us not be misleading here. Minecraft changed over to netty - that doesn't mean to support 1.7 hypixel had to too.

Chances are Hypixel just translate 1.7 packets into the 1.6.4 counterparts and drop any new fields. - Oh, and drop the new header and <-> back to the client.

1.7 completely changed how minecraft handles it - regarding updating the protocol not much changed, some packet structures were modified and headers were properly implemented. (finally)

 

It's not possible without either a proxy or ugly hacking the server. We don't support either here. Just wait until 1.7's out!