Hey everyone :)
We made changes to the component structure of our software and had to change a few repositories in the process. This was necessary among other things to improve our architecture, make the code continuously deployable and to facilitate reuse. I want to give you a short overview of the changes so you can adapt your setups as needed.
The biggest change is probably that you should now use Composer to install Wikibase and no longer need to get all the components manually. For details about this you can have a look at https://www.mediawiki.org/wiki/Wikibase/Contribution_workflow. It has details about how to get the code, make changes and contribute those changes back to the project. To get an overview of all repositories and where they are located you can check the table at https://www.mediawiki.org/wiki/Wikibase/Components
If you have any issues with the switch please let us know here or in #wikidata on IRC. Sorry for the hassle but it will improve things long-term.
Cheers Lydia