IMSC 1.3 Text Profile is now a W3C Recommendation!

🥁 IMSC 1.3 Text Profile is now a W3C Recommendation!

https://www.w3.org/news/2026/imsc-text-profile-1-3-is-now-a-w3c-recommendation/

ICYM, this edition of IMSC:

• adds support for superscript and subscript text
• improves Japanese language support

IMSC’s rich styling, extensible metadata and structured markup makes it an ideal choice for expressive subtitles and training sets.

#subtitle #caption #accessibility #imsc #ttml