2026/03/25 - 5 updated api methods
Changes Add support for Mu-law and A-law codecs for output format
2026/03/19 - 1 new api methods
Changes Added bi-directional streaming functionality through a new API, StartSpeechSynthesisStream. This API allows streaming input text through inbound events and receiving audio as part of an output stream simultaneously.
2026/03/11 - 5 updated api methods
Changes Added support for the new voices - Ambre (fr-FR), Beatrice (it-IT), Florian (fr-FR), Lennart (de-DE), Lorenzo (it-IT) and Tiffany (en-US). They are available as a Generative voices only.
2025/08/19 - 4 updated api methods
Changes Added support for new output format - Opus.
2025/03/26 - 5 updated api methods
Changes Added support for the new voice - Jihye (ko-KR). Jihye is available as a Neural voice only.
2025/02/12 - 7 updated api methods
Changes Added support for the new voice - Jasmine (en-SG). Jasmine is available as a Neural voice only.
2024/08/27 - 7 updated api methods
Changes Amazon Polly adds 2 new voices: Jitka (cs-CZ) and Sabrina (de-CH).
2024/05/08 - 5 updated api methods
Changes Add new engine - generative - that builds the most expressive conversational voices.