The Software Update Stack was updated to receive fixes and enhancements.
- Adapt to work with GnuPG 2.1.23. (bsc#1054088)
- Support signing with subkeys. (bsc#1008325)
- Enhance sort order for media.1/products. (bsc#1054671)
- Also show a gpg key's subkeys. (bsc#1008325)
- Improve signature check callback messages. (bsc#1045735)
- Add options to tune the GPG check settings. (bsc#1045735)
- Adapt download callback to report and handle unsigned packages.
- Report missing/optional files as 'not found' rather than 'error'.
This update was imported from the SUSE:SLE-12-SP3:Update update project.