Redmine

For what it's worth, I'm in favor of

• Removing the experimental flag on the common_mark formatter
• Marking the previous markdown formatter as deprecated
• Making the common_mark formatter the default for new installations #34863

The timeline of this may be stretched out a bit, but does not necessarily have to. The deprecation / experimental "flags" on the formatters do not change anything in terms of functionality and can be set in a 5.0.x patch release.

The default formatter is only relevant for new installations. I have no strong opinion on whether this requires a major release (6.0.0) or minor release (5.1.0). I have a slight hunch that it might be surprising in a patch release (5.0.x).

I think we do all these changes in 5.1.0.

The experimental flag was already removed in r21594 and I will deprecate markdown right after we switch the default formatter to common_mark (#34863).

Marius BALTEANU wrote:

I'va marked in r21898 the legacy Markdown as deprecated, but I think we should show this deprecation also in admin/info for those instances that are using this option.

I agree. I think such a warning is helpful to encourage admins to migrate to CommonMark Markdown.