What's new in 2.10?

• +a (away) user mode

  This user mode is used to propagate users' away status between servers.

• added channel mode +e (exceptions to bans).

• added channel mode +I (invitations).

• invites can now be used to override channel bans and limit.

• banned users cannot speak on channel without +o/+v.

• ! channels introduced (can't be collided);

• NJOIN for 2.10 - 2.10 communication on connect bursts instead of the combined JOIN/MODE introduced by 2.9 (and now deprecated)

• a slave process is now used to authenticate incoming connections.

  The slave's modular design makes it easy to add new authentication modules.