The Community change is actually quite minor.
1) Add "offline" checkbox to the friends tab.
2) Add "checkboxLFW" to the pageSearch.
Everything else is positioning tweaks to accoumodate the new items.
Chat changes should be made as they are likely to affect how the chat tab border hides and is affected by window options.
I'm betting an LFW button gets added to the group window soon. I'm already adding one