3.4.1

Fixes:

• Rename option contentType to contentLevel. (#300, #400, ca98e03)
• Correctly produce paragraph separators inside block-level elements. (#376, #377, #403, contributed by @lostenderman)

Deprecation:

• Replace \markdownInfo, \markdownWarning, and \markdownError with l3msg functions and deprecate them. (#383, #398, e3ca682, 48002f8)
• Use the TEXMF_OUTPUT_DIRECTORY environmental variable to set \markdownOptionOutputDir and deprecate it. (#405, #409, matrix.org)

Docker:

• Add support for TeX Live 2024 pretest. (#404, #406, e51738b, #410, 7ef64dd, a7cff81, contributed by @jspitz)