The biggest new feature in this the Flatpak 1.10 series is the implementation of a new format for the indexed summary file, which is being used when accessing an OSTree repository on the network. With this, the OSTree dependency was bumped to version 2020.8. This major change also makes several underlying enhancements to Flatpak’s behavior, such as faster fetching of the initial metadata required for most operations and therefore less network bandwidth usages, as well as the ability for Flatpak repos to scale to more apps and more architectures without having an impact on clients.