In a modeless channel, there are no operators, the topic cannot be changed, and no modes may be set. The idea behind modeless channels is to create an environment where people do not fight about ops and everyone has equal privileges. If for some reason you find yourself running into these notices often, or you and your fellow ops communicate a lot through noticing each other, you'll love this addition. It is now possible to bypass the target flood limit checks by using these new commands. This is most useful for bots that need to communicate within the channel environment, such as channel game bots, and for help channels.
Invited users can now join through everything, including bans.
This rarely happened anyway, but is a nice addition to the code. This does exactly what the title states - a server can now hold up to 4096 local users. This creates more room for future expansion within the Undernet, and was useful for certain popular servers which would become full under the old limit. This is really only useful for debugging purposes, as the constant notices can be quite annoying and are relatively useless. The author appreciates his reviewing this article for technical merit.