EPUB 3 Text-to-Speech Enhancements 1.0 publication history Date Status 21 December 2023 Note 19 May 2023 Note 10 May 2023 Note 2 April 2023 Note 30 March 2023 Note 13 January 2023 Note 10 August 2022 Note 24 July 2022 Note 19 May 2022 Note 17 May 2022 Note 20 April 2022 Note 19 April 2022 Note 15 April 2022 Note 14 April 2022 Note 11 April 2022 Note 6 April 2022 Note 31 March 2022 Note 10 March 2022 Note 8 December 2021 Note 25 November 2021 Note 1 November 2021 Note 13 October 2021 Note 7 October 2021 Note 29 September 2021 Note 28 September 2021 Note 21 September 2021 Note 14 September 2021 Note 3 September 2021 Note 25 August 2021 Note 3 August 2021 Note