Maintenance and future-proofing release. This brings the project up-to-date with regard to dependencies, creates a more standardized directory structure, and streamlines the install footprint somewhat.
Bower, a dependency manager for front-end components, has been deprecated for some time now in favor of Yarn and NPM. In migrating away from Bower to Yarn, this was also a good time to refactor the project's Gulp build process.
End users of RaspAP won't notice a big difference here, as there are no new features or bug fixes in this release. Developers, however, will be able to more easily modify RaspAP's dependencies and create custom builds from their forked projects (prior releases mostly inherited SB Admin 2's dependencies). Now this is as simple as modifying package.json and executing:
yarn install
gulp
Most importantly, this release paves the way for a future upgrade to Bootstrap 4 and the latest release of Start Bootstrap's SB Admin 2. RaspAP still uses the last stable release of the legacy Bootstrap 3 version of this theme. Look for this to change soon.