Version 11.0 checklist

[joshgoebel]

This is still a ways away but I wanted to start a list of the breaking changes we intend to introduce so we don't forget anything later.

• rip out beforeMatch in lue of multi-match?
• .title--class or .title__class enh(parser) multi-class in a single mode #3081
• Throttle deprecation logging (chore) Throttle logging of deprecation messages #3069
• Remove lexemes

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• Pull Vue plugin out of main build
• Remove aliases that are "also works with" not true aliases Todo: Remove aliases that are "also works with" not true aliases #3049
• Remove fixMarkup (deprecated via Deprecate fixMarkup public API #2534)
• Remove useBR (parser) Deprecate useBR #2559
• Remove tabReplace (deprecated via (parser) Deprecate: tabReplace parser option  #2874)
• Remove php3, 4, 5, 6, etc. aliases
• Remove sql_more grammar
• relevance returned by highlight is allowed to be a floating point number now
• Remove HTML merging (deprecated via Deprecate HTML auto-merging from core (plugin may be needed) #2889)
• Consider status of ESM support in Node Discuss: Should Highlight.js version 11 npm release be ESM only? #2600
• rename regex.join to indicate it's internal
• remove re key from element.result (highlightBlock)
• remove the old htmlbars stub
• remove the old c-like stub
• remove schoolbook or remove it's funky background ref
• change default padding of all themes to be more generous
• rename second_best to secondBest
• remove apache, http, nginx, properties, coffeescript from :common Discuss: 2021: Inclusion of new languages in :common set #2848
• move CSS_NUMBER_MODE into css-shared (it's too specific to be a general rule)
• review notes on [Request] Expose TypeScript types. #2945 and consider making some attributes of Result "private"... ie, __top vs top... since those are intended more for debugging rather than public use.
• initHighlighting* needs to be aliased to highlightAll()

[joshgoebel]

This isn't a general discussion thread for version 11 (esp not this early), it's more of a todo-list scratch pad for maintainers. Please open a separate issue if you want to discuss an individual aspect of the future version 11 release.