v1.2.0

Changed

• Replace manual PDF layout with embedded Typst, preserving YAML and Markdown inputs.
• Resolve contents page numbers and total pages from the typeset document.
• Bundle fallback fonts and retain existing source syntax themes.
• Source builds now require Rust 1.89 or later.
• PDF layout and page breaks may differ from previous releases; no external Typst installation is required.

Fixed

• Extract release notes from the matching version section when the unreleased section is empty.