The following is a summarised list of the main differences between the
release versions of hyb7 and ircd-ratbox.

- persistent channels were removed from hybrid7, they still exist here
  but will only be used when someone splits leaving a channel empty.
- temp dlines
- temp klines/dlines are more efficient and maxed at 4 weeks.
- /quote XLINE to set xlines via the ircd, checked against existing
  clients.
- /quote UNXLINE to remove xlines via the ircd.
- remote unkline support, similar to remote klines
- remote xline support
- remote resv support
- networkwide user@host limits
- CIDR glines
- vchans, lazylinks, anonops and halfops were removed
- umode +g uses numerics instead of notices
- rewritten config parser, allowing oper "opername" { etc.
- RPL_WHOISACTUALLY, a numeric in whois that helps to show the source
  of host spoofing
- stats v shows sendq and connect duration
- tkline expire notices are optional
- redundant mode code for channels (disallowing multiple +o) was removed
- support for REHASH TKLINES/TDLINES/PGLINES/GLINES
- RESVs set via the ircd are now stored in resv.conf and will keep through
  a server restart
- encrypted passwords in auth {}; are supported
- an operator {}; flag allowing/disallowing use of operwall
- support for hidden admins - people with admin privileges who arent
  shown to be admins
- protection against sendq exceeded on /list
- 'paranoid' notices were removed
- optional delayed kline checking
- functionality to specify an outgoing IP per connect {};
- cluster code, to share klines/unklines/xline/resv/locops automatically 
  with other servers (a version of hyb6s SLAVE_SERVERS)
- trace is reallowed for non-opers
- ETRACE, a version of trace with gecos information
- CIDR limits per class
- a reject cache, which handles clients repeatedly connecting and being
  rejected which lowers load significantly
- split delay, delay after split ends to disable splitmode
- /quote set operstring
- /quote set adminstring
- quitstorms actually work and dont kill a server
- user@host spoofs
- spambot_exempt in auth {};, exempting a user from spambot checks
- "sendq after burst", allows servers to have a smaller sendq after the
  burst has finished so dead links are dropped quicker.
- topic bursting system, optional per connect {};
- ziplinks actually work.
- xline characters '#' to match [0-9] and '@' to match [A-Za-z]