NotReadyToDie

Hi everyone. I would want to know why there is no 1.7.2 recommended version on the website minecraftforge.net. Is it because the versions are still pre-releases ? And another question. Are 1.7.2 forge versions compatible with 1.7.4 minecraft versions ? Thanks to answer, i'm new and sorry if my english is a bit bad i'm 16 years old and I'm from France. Anyway, LexManos and all of yours are making a remarkable stuff. Thanks to make Minecraft better with mods