No bug reports since rc4, so here it is.

v0.99.10 2003-06-26 Timo Sirainen <tss@iki.fi>

* Default PAM service name changed to "dovecot". This means that
  if you're using PAM, you most likely have to do
    mv /etc/pam.d/imap /etc/pam.d/dovecot
  If you wish to keep using imap, see doc/auth.txt.

* ~/rawlog directory changed to ~/dovecot.rawlog

+ Faster and better maildir synchronization. We support read-only
  maildirs and out-of-quota conditions are handled a lot better.
  dovecot-uidlist file still isn't out-of-quota-safe though, but you
  can keep it in another location where quota isn't checked. For
  example:
    default_mail_env = Maildir:~/Maildir:
      INDEX=/noquota/%u:CONTROL=/noquota/%u
+ Read-only mboxes are supported now.
+ Only NOOP and CHECK now always do a mailbox sync checking. Other
  commands sync max. once in 5 seconds, plus always from indexes.
  This should reduce I/O a bit.
+ All NUL characters are translated to ascii #128 before sending to
  client. RFC prohibits sending NULs and this is how UW-IMAP handles
  it as well.
+ Make ENVELOPE, BODY and BODYSTRUCTURE replies more compact by
  removing multiple LWSPs and translating TABs to spaces. RFC doesn't
  specifically require this, but this seems to be the wanted
  behaviour..
+ Added ANONYMOUS SASL mechanism.
+ More flexible user chrooting configuration in home directories:
  "<chroot>/./<homedir>"
+ Added support for dynamically loadable IMAP/POP3 modules. See
  INSTALL file for more information.
- Partial fetches were broken if mails had CR+LF linefeeds
- SEARCH DELETED didn't return anything if all messages were deleted
- OpenSSL support was broken in many installations because we were
  chrooted and it couldn't open /dev/urandom.
- PAM: Giving wrong password blocked the whole process for two
  seconds. Now we create a new process for each check.
- Lots of other smaller bugfixes and better error handling