Version 1.12.0:

Updated to MC 1.21.11

Additions

• Dialogue screens now have a proper name, which will be narrated for players using this accessibility feature. This name can be changed with a new optional name property on dialogues. The default name in English is "Dialogue" when there is no interlocutor, and "Dialogue with {entity name}" when there is one.
• The main text in dialogues now gets a scrollbar when it gets too long, and can be narrated
• The choices and the instructions in the dialogue screen can be narrated (kind of, not fully working yet)

see full changelog here