# The case for a \`\<!CommonMark\>\` declaration tag

**URL:** <https://talk.commonmark.org/t/the-case-for-a-commonmark-declaration-tag/584>\
**Category:** Spec\
**Created:** [September 13, 2014, 7:32am UTC](https://talk.commonmark.org/t/the-case-for-a-commonmark-declaration-tag/584 "2014-09-13T07:32:19Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![mofosyne](https://cdn.commonmark.org/user_avatar/talk.commonmark.org/mofosyne/32/1438_2.png) [@mofosyne](https://talk.commonmark.org/u/mofosyne)\
**Post date:** [September 13, 2014, 7:54am UTC](https://talk.commonmark.org/t/the-case-for-a-commonmark-declaration-tag/584/2 "2014-09-13T07:54:22Z")

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If my suggestion below is adopted. How would you include multiple different ‘editions’ of CommonMark? e.g. `barebone`, `core`, `programmer's extension packages` etc…

[http://talk.commonmark.org/t/multiple-levels-of-commonmark-specification/541](http://talk.commonmark.org/t/multiple-levels-of-commonmark-specification/541)

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