+Client blocks (previously I: lines), Operator blocks (previously O:
+and o: lines), channel bans and silences may use CIDR notation instead
+of simple wildcards. You may also have silence exceptions by putting
+'~' before the mask; for example, if you wish to silence everyone
+except X, you could use SILENCE *!*@*,~X!cservice@undernet.org.
+
+The server will no longer kick "net riders" in keyed (+k) channels if
+both sides of the net join have the same key.
+
+IP masks (as used in bans, G-lines, etc) are now parsed in a more
+forgiving manner. 127.0.0.0/8, 127.* and 127/8 are all accepted and
+mean the same thing. Ambiguous expressions like 127/8 are interpreted
+as IPv4 masks; to interpret it as an IPv6 mask, use 127:/8.
+