The Internationalization Working Group @webi18nW3C Internationalization, i18n has published the first draft of a Group Note titled "Text-to-Speech Rendering of Electronic Documents Containing Ruby: User Requirements". This document describes user requirements related to text-to-speech rendering of electronic documents containing ruby annotations.

w3.org/news/2026/group-note-dr

 Double-sided ruby example 2
Figure 2 織田信長 features an upper-side ruby annotation "1534〜82" and a lower-side ruby annotation おだのぶなが
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