Release candidate: 1.2.0-RC1

Sam Tuke Jan 26 2021 Share

Note: a follow-on RC release, RC3, includes a fix for showing new log lines arriving after the application start. Please use that instead of RC1.

This is an early release of the upcoming Lightmeter Control Center 1.2.0. It provides an opportunity to test the latest changes before the final release scheduled for next week. Please check old issues which affect you and are reported as fixed, as well as any brand new features, and also existing features for regressions.

Changes for testing

Major changes
  1. New log processing system: the email status storage system has been completely replaced and pre-existing stored logs (in `logs.db`) are incompatible and will be re-imported
  2. Zimbra logs support
  3. Newly generated nightly Docker images (for Master and Develop branches)
Minor changes
  1. The observatory now greets users by name
  2. Log files can be read while being moved by logrotate
  3. Logfile timestamps from file Unix modification times are adapted to the local timezone

The full list of merge requests and commits is on GitLab.

How to test

The best way to test this Release Candidate is to use it as you normally use Control Center, in a non-critical environment. Known issues with this release are documented in the README.


Upgrading to an RC release is the same as for any other Control Center release.

Downgrading is also supported, but because downgrading depends upon features which may not yet be stable, successful downgrading should not be relied upon.

Testing specific features

Features which are user-facing can be easily tested using the Web-UI — see the associated GitLab issues for the expected behaviour and screenshots (sometimes) of how they are intended to look.

Where back-end changes affect a particular component (such as Internationalisation, parsing, etc.), deliberately using functionality which depends on those components provides good opportunities to test for regressions.

Reporting issues

Any found issues should be reported to GitLab, clearly stating the version number of the copy of Control Center that you’re using (e.g. 1.0.0-RC1).


Missing your favourite packaging system? Tell us in the comments.

Supported by

This release was funded through the NGI0 PET Fund, a fund established by NLnet with financial support from the European Commission’s Next Generation Internet programme, under the aegis of DG Communications Networks, Content and Technology under grant agreement No 825310.

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