Version 3.0.0-rc2 Released
Lorenz Kästle, January 2, 2026
The Monitoring Plugins Development Team announces version 3.0.0-rc2 of the Monitoring Plugins!
This is the second release candidate for version 3.0.0.
It contains mostly fixes to the 3.0.0-rc1 version and is also not a full release, but serves as a basis for test until we are mostly sure not to break production setups.
Changes
- check_nt was removed check_nt is no long useful in current setups and hasn't been for some time. Therefore it was removed without a replacement.
- check_ntp was removed check_ntp was marked as deprecated for a long time due to systematic problems. It should not be in use anywhere and gets now removed to reduce code size and avoid misleading users. The replacements are check_ntp_time and check_ntp_peer
- Bugfix for check_ntp_time An errournous change in check_ntp_time made it fail in almost all use cases. This has been fixed
- Properly separate perfdata from different subchecks A missing separator caused errors in perfdata strings (from C plugins) where two different data points where not properly separated and showed up as a single invalid data point
- check_curl: append the query string from parsed uri
When using the old style follow method (
-f follow) with check_curl the query string was not appended to the new target after redirect. This was fixed. (Thanks Ahmet Oeztuerk) - Fixing different problems on OpenBSD A few different things did prevent proper compilation and usage on OpenBSD, partly due to different naming conventions there. These are hopefully fixed now. Thanks to Alvar Penning and Stuart Henderson.
- Gnulib update to stable-202507