Release 2021_015 (2021-05-03)

Impact

  • [NixOS 20.09] Postfix (mailserver, mailstub) and clamav (antivirus) will be restarted.

  • [NixOS 20.09] VMs will schedule a reboot to activate the new kernel version.

NixOS 20.09 platform

  • Machines with database roles (percona, mongodb, mysql and postgresql) now disable I/O scheduling when running on SSDs for better performance (#PL-129792).

  • Upgrade our backup software (backy) with a variety of improvements. Most notably we implemented a hot reload feature so that backup schedules will be more consistent when many config changes are processed, which previously led to frequent restarts and aborted backups that had to be retried later on (#PL-129718).

  • Merge upstream NixOS changes that include security fixes and other updates (#PL-129805):

    • clamav: add patch for CVE-2021-1405

    • imagemagick6: 6.9.12-3 -> 6.9.12-8

    • imagemagick: 7.0.11-6 -> 7.0.11-8

    • linux: 5.4.109 -> 5.4.111

    • phpPackages.composer2: 2.0.0 -> 2.0.12

    • postfix: 3.5.6 -> 3.5.10

Detailed Changes