Recently, Adobe released the Adobe Firefly Image 2 Model, which is said to "significantly advances Firefly creative control and image quality, with continued focus on being safe for commercial use".
Apart from better image quality, the new model also promises new features such as Generative Match, which can replicate the style of an existing image, and it also claims to have better text prompt capabilities.
Sources:
https://helpx.adobe.com/firefly/using/whats-new/2024.html
https://news.adobe.com/news/news-details/2023/Adobe-Releases-Next-Generation-of-Firefly-Models/default.aspx