6.4.0

What's Changed

• Optionally speed up validation by @gwincr11 in #1672
• Adding missing div compared to JupyterLab DOM structure by @SylvainCorlay in #1678
• Allow passing extra args to code highlighter by @yuvipanda in #1683
• Prevent page breaks in outputs when printing by @SylvainCorlay in #1679
• Add collapsers to template by @SylvainCorlay in #1689
• Fix recent pandoc latex tables by adding calc and array (#1536, #1566) by @cgevans in #1686
• Add an invalid notebook error by @gwincr11 in #1675
• Fix typos in execute.py by @TylerAnderson22 in #1692
• Modernize latex greek math handling (partially fixes #1673) by @cgevans in #1687
• Fix use of deprecated API and update test matrix by @blink1073 in #1696
• Update nbconvert_library.ipynb by @letterphile in #1695
• Changelog for 6.4 by @blink1073 in #1697

New Contributors

• @gwincr11 made their first contribution in #1672
• @cgevans made their first contribution in #1686
• @TylerAnderson22 made their first contribution in #1692
• @letterphile made their first contribution in #1695

Full Changelog: 6.3.0...6.4.0