I still use version 1 and just used the “Update Libraries” command. Suddenly the library content was gone.
Then I realised that the URLs have changed. silverbullet.md is running version 2 and it seems things have changed there Libraries in v2 - #2 by zef so in SETTINGS we have to change
libraries:
- import: "[[!silverbullet.md/Library/Core/*]]"
to
libraries:
- import: "[[!v1.silverbullet.md/Library/Core/*]]"
The corresponding info on Libraries needs to be changed as well as it is not up to date @zef