This is bugfix release for aptly 1.1.0 series.
aptly 1.1.0 contained bug (#600) with aptly mirror update - if package files are already downloaded, aptly mirror update was clearing fields in internal package database, which resulted in failures for subsequent publishing.
If you are running aptly 1.1.0 upgrading to 1.1.1 and running aptly mirror update once again should be sufficient to mitigate that issue.
For more information on new features in 1.1.x, please see 1.1.0 release notes.
Download
Debian packages and binary distributions for various platforms are available at https://www.aptly.info/download/