I assume you want a Vietnamese-compatible Tai font (UniShX) updated — here are likely actions and files you might need. If you meant something else, tell me which part to change.
Many of these have been modernized to Unicode while keeping the classic Vietnamese design aesthetics. tai font vn unishx upd
TCVN 6909:2001: This is the official Vietnamese standard for the Unicode character set. If you are writing a technical paper, this is the primary reference for how Vietnamese characters should be encoded. I assume you want a Vietnamese-compatible Tai font
Do not download from random "free font" aggregators. Use: Windows 11 / macOS / Linux : Full
The VN UNISHX font belongs to a legacy category of fonts used before Unicode became the global standard. Today, most designers and editors use Unicode-based fonts to ensure text displays correctly across all devices without needing specific legacy font installations. Modern Alternatives for Vietnamese Typography
revolutionized the field. By assigning a unique number to every character, Unicode eliminated the need for specialized "encoding switchers." Modern fonts like Be Vietnam Pro
Software Compatibility: Packages with "shx" in the name are almost exclusively for AutoCAD, where SHX fonts are vector-based and critical for technical drawings. Common Vietnamese Font Resources