New Features

• Added log rotation functionality as alternative to log truncation (#211, #596)
  • New --log-rotate option to enable rotation instead of truncation
  • New --log-max-files option to specify number of backup files
  • New --log-allowlist-dir option for allowed log directories
• Added --no-container-partial-message option (#335, #583)
• Added systemd priority prefix parsing to journald logging (#595, #601)
• Added container labels to journald log entries via --log-label option (#562)

Improvements

• Restored use of writev() system call for better performance (#609)
• Added optional systemd support for static builds via DISABLE_SYSTEMD flag (#348, #573)
• Documented all CLI options in conmon.8.md (#606)
• Fixed meson install path to match Makefile behavior (#304, #585)
• Enhanced terminal size validation with upper bound checks (#610, #612)

Code Quality

• Fixed multiple buffer safety and memory allocation issues (#582, #587)
• Fixed memory leak in seccomp_accept_cb (#557)
• Replaced sprintf with snprintf for security
• Improved error handling and logging throughout codebase (#554, #555)
• Modernized Go code: removed pkg/errors dependency, updated to ioutil replacements (#559)
• CI/CD improvements and Go version updates to 1.23+ (#560, #561, #569)

Reverts

• Reverted exec exit status handling fix that caused regression (#589, #590)

Issues Fixed

#211, #252, #304, #328, #335, #348, #391, #426, #490, #493, #532, #540, #545, #551, #554, #555, #557, #559, #560, #561, #562, #563, #566, #569, #570, #571, #572, #573, #574, #575, #579, #581, #582, #583, #584, #585, #586, #587, #589, #590, #592, #593, #594, #595, #596, #597, #600, #601, #602, #603, #604, #605, #606, #607, #609, #610, #612, #613, #617, #618, #619, #620, #621, #623, #624, #625

External Issues Fixed

• https://bugzilla.redhat.com/show_bug.cgi?id=2348843
• https://github.com/containers/podman/issues/27335
• https://github.com/containers/podman/issues/26981

Contributors

Special thanks to all contributors who made this release possible:

• Ayato Tokubi atokubi@redhat.com
• Dan Cermak dcermak@suse.com
• Daniel J Walsh dwalsh@redhat.com
• Giuseppe Scrivano gscrivan@redhat.com
• Jan Kaluza jkaluza@redhat.com
• Jindrich Novy jnovy@redhat.com
• Kir Kolyshkin kolyshkin@gmail.com
• Lokesh Mandvekar lsm5@fedoraproject.org
• Peter Portante peter.portante@redhat.com
• Povilas Kanapickas povilas@radix.lt
• Sohan Kunkerkar sohank2602@gmail.com
• renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Installation

Download from GitHub and build from source:

git clone https://github.com/containers/conmon.git
cd conmon
git checkout v2.2.0
make
sudo make install