Changes 2.1.9:
Feature improvements
* Add radmin command "stats detail <file>" to see what
  is going on inside of a detail file reader.
* Added documentation for CoA.  See raddb/sites-available/coa
* Add sub-option support for Option 82.  See dictionary.dhcp
* Add "server" field to default SQL NAS table, and documented it.

Bug fixes
* Reset "received ping" counter for Status-Server checks.  In some
  corner cases it was not getting reset.
* Handle large VMPS attributes.
* Count accounting responses from a home server in SNMP / statistics
  code.
* Set EAP-Session-Resumed = Yes, not "No" when session is resumed.
* radmin packet counter statistics are now unsigned, for numbers
  2^31..2^32.  After that they roll over to zero.
* Be more careful about expanding data in PAP and MS-CHAP modules.
  This prevents login failures when passwords contain '{'.
* Clean up zombie children if there were many "exec" modules being
  run for one packet, all with "wait = no".
* re-open log file after HUP.
* Fix "no response to proxied packet" complaint for Coa / Disconnect
  packets.  It shouldn't ignore replies to packets it sent.
* Calculate IPv6 netmasks correctly.
* Fix SQL module to re-open sockets if they unexpectedly close.
* Track scope for IPv6 addresses.  This lets us use link-local
  addresses properly.
* Updated Makefiles to no longer use the shell for recursing into
  subdirs.  "make -j 2" should now work.
* Updated raddb/sql/mysql/ippool.conf to use "= NULL".
* Updated Makefiles so that "make reconfig" no longer uses the shell
  for recursing into subdirs, and re-builds all "configure" files.
* Used above method to regenerate all configure scripts.
* Updated SQL module to allow "server" field of "nas" table
  to be blank: "".  This means the same as it being NULL.
* Fixed regex realm example.  Create Realm attribute with value
  of realm from User-Name, not from regex.
* If processing a DHCP Discover returns "fail / reject", ignore
  the packet rather than sending a NAK.
* Allow '%' to be escaped in sqlcounter module.
* Fix typo internal hash table.
* For PEAP and TTLS, the tunneled reply is added to the reply,
  rather than integrated via the operators.  This allows multiple
  VSAs to be added, where they would previously be discarded.
* Make request number unsigned.  This changes nothing other than
  the debug output when the server receives more than 2^31 packets.
* Don't block when reading child output in 'exec wait'.  This means
  that blocked children get killed, instead of blocking the server.
* Enabled building without any proxy functionality
* radclient now prefers IPv4, to match the default server config.
* Print useful error when a realm regex is invalid
* relaxed rules for preprocess module "with_cisco_vsa_hack".  The
  attributes can now be integer, ipaddr, etc.  (i.e. non-string)
* Allow rlm_ldap to build if ldap_set_rebind_proc() has only
  2 arguments.
* Update configure script for rlm_python to avoid dynamic linking
  problems on some platforms.
* Do suid to "user" when running in debug mode as root
* Make "allow_core_dumps" work in more situations.
* In detail file reader, treat bad records as EOF.
  This allows it to continue working when the disk is full.
* Fix Oracle default accounting queries to work when there are no
  gigawords attributes.  Other databases already had the fix.
* Fix rlm_sql to show when it opens and closes sockets.  It already
  says when it cannot connect, so it should say when it can connect.
* "chmod -x" for a few C source files.
* Pull update spec files, etc. from RedHat into the redhat/ directory.
* Allow spaces when parsing integer values.  This helps people who
  put "too much" into an SQL value field.


(adam)