15.0.0-alpha.6

Feature

• DatetimeWidget 'noPastDates' option: Take widgetOptions?.pattern_options?.noPastDates of backend schema into account. @ksuess
• Add a new type of filter facet for the Search block. Heavily refactor some searchblock internals. @tiberiuichim
• Add date range facet to the search block @robgietema

Internal

• Improve flaky test in coresandbox search Cypress tests @sneridagh

Documentation

• (Experimental) Prepare documentation for MyST and importing into plone/documentation@6-dev. @stevepiercy
• Fix broken links and redirects in documentation to be compatible with MyST. @stevepiercy
• Update add-on internationalization. @ksuess
• Add MyST and Sphinx basic configuration for rapid build and comparison against MkDocs builds. @stevepiercy
• Fix many MyST and Sphinx warnings. @stevepiercy
• Remove MkDocs configuration. See #3042 @stevepiercy
• Add Plone docs to Intersphinx and fix broken link. @stevepiercy
• Get version from package.json @sneridagh
• Remove legacy folder in docs @sneridagh
• Backport docs of RAZZLE_TESTING_ADDONS environment variables. See https://github.com/plone/volto/pull/3067/files#diff-00609ed769cd40cf3bc3d6fcc4431b714cb37c73cedaaea18fe9fc4c1c589597 @stevepiercy
• Add missing developer-guidelines/typescript to toctree @stevepiercy
• Add Netlify for preview of Sphinx builds for pull requests against master and plone6-docs. @stevepiercy
• Clean up toctree errors by removing obsolete files, adding :orphan: field list, and reorganizing some files. @sneridagh and @stevepiercy
• Switch to using netlify.toml to configure Netlify Python environment. @stevepiercy
• Convert admonition syntax from Markdown to MyST. @sneridagh