- upgrade to Asciidoctor Tabs 1.0.0-beta.3
- upgrade to Antora Release Line Extension 1.0.0
- upgrade to Spring.io Antora Extensions 1.0.0
- fix require path of tabs migration extension in local playbook
- add reminder to update dependency versions in playbook template for branches
- declare atlas extension as package
- declare release line extension as package
- enable release line extension by default
- configure atlas extension, but do not enable by default (enable using --extension @antora/atlas-extension)