Likely because Version 25 was released to the live game on November 13, 2019.
Perhaps you’re looking for Beta Version 30? 🧪 The Beta Beat (v30) – Hero Balance Updates; Updated Alchemy Lab; Hero Academy; Updated Sand Empire Seasonal Event; Updated Path of Valor; New Season 3 Heroes; Jun/Jul/Aug/Sep HOTM – Sharing the Big Picture on What's Going on in Beta