1.10

Process improvements

Make autobuilds reliable (and fast-enough, but mainly reliable)
Rename master to main (and fix references in CI, website, etc.)
Discuss: reduce reviewers to 2?
Discuss: enforce a CHANGES.md entry with every PR (because we so often forget), or not (because we're retiring CHANGES.md in favor of out-of-tree release notes)
Retire .md docs to notqmail.org for historical preservation
#17 Integrate the patch checker to fail CI if the usual patches fail to apply
#189 Turn up warnings in local builds, fix everything that doesn't break patches, ratchet CI conf-cc -Wthis -Wthat to match
Reconsider alternatives to check now that warnings are no longer rampant
#48 Make regular use of code analysis tools

#7 Stop redeclaring system functions
Remove everything from 1.09 "What's going away?" that we're sure now is the time

#89 Fix leap second handling on systems running TAI (original patch)
#90 Improve Maildir file uniqueness in qmail-local.c (original patch)
Sergio Gelato's fixed version of Andy Repton's outgoingip patch to configure qmail-remote's IP in control/outgoingip
RCPTCHECK or qmail-spp (or both?)

#94 Sprinkle fsync() to make syncdir unnecessary
Tiny changes to qmail-smtpd to support running under a qmail-popup-alike SMTP AUTH parent program

#227 Import qmail-qfilter
- #232 Test qmail-inject recipient address qualification
#233 Import qmail-rcptcheck, qmail-rcptcheck-realrcptto, and qmail-rcptcheck-badrcptto
- Enable realrcptto by default?
Import qmail-spp-spf

#35 FHS (#2)
- split conf-qmail in to conf-qmail-bin, conf-qmail-queue, conf-qmail-man, etc.
- /var/qmail/DIR unless /var/qmail not in conf-qmail
- Configuration sugar: ./configure && make && make install (#9)
Debian (deb), RedHat (rpm), and /package packaging
- #76 binary builds on openSUSE build service and locally
  - deb and rpm builds. (was #59)
- FHS-aware (default on): /var/qmail contains symlinks to FHS-compatible paths
- FHS-strict (default off): /var/qmail does not exist
- #91

Incrementally integrate inbound STARTTLS and AUTH
Incrementally redesign qmail-remote for outbound TLS, AUTH, SIZE, PIPELINING, SMTPUTF8, IPv6
#50 Add spawn-filter for filtering messages from qmail-remote and qmail-local
Add SRS and DKIM filters
(see Designs)

new build time defaults for on-disk queue
add queue repair tool
- #67 remove qmail-upq
- including the ability to upgrade a 1.x queue to 2.x in-place
merge big-todo (changes queue layout)
increase default conf-split to 31 (changes queue layout)
merge ext-todo
- add a qmail-todo manpage, #23
merge netqmail-big-concurrency

Merge changes for high-volume installations that are harmless defaults in 2020 (taking care to migrate smoothly)
qmail-ldap, or enough interfaces to let extensions provide LDAP integration
make sure everything works with vmailmgr, vpopmail, other approaches to "virtual users"
remove deprecated code
- #71 remove install script

Port to the latest DJB libraries. Remove local copies. Depend on external libowfat or skalibs.

Replace stralloc with array
Replace substdio with buf fer
Replace time-handling code with libtai
Replace DNS resolver code with djbdns's
#88 Use mess822
Replace poll/select with iopause
- Possibly add kqueue and/or epoll support to iopause
Replace exec (and related env_puts) with pathexec
Update to latest cdb
Use socket for any remaining networking code that's still necessary