Pancakeswap v2 router and factory?

Hi,

I’ve been cloning some smart contracts but I dont understant the interface for creating liquidity pairs that well, I’m developing for BSC, which is the same as ETH chain, now, pancakeswap is changing their router and factory to v2,

But I can’t find the new addresses anywhere, and I also dont understand this that much.

Can someone help me and point me to a tutorial about this interface and the router and factory function? Also, where do I find the new pancakeswap v2 addresses for these funcitons?

Thank you so much!