3.10
HTML reader: parse aside as a Div.
Docx writer: fix FirstParagraph style lost after heading with footnote.
Update copyright dates to 2024.
Add `xlsx` (Microsoft Excel) as an input format.
Fix test suite parallel execution failures.
HTML templates: include pandoc-version in generator meta tag.
Avoid use of 'head' in Tests.Shared.
New `xml` format exactly representing a Pandoc AST.