Minecraft's Caves & Cliffs update is making a drastic change to the game's ore block textures in order to help more players be able to identify them. ... Minecraft version 1.17 aims to create more accessible caves by making them easier to explore, and it will also make ores easier to identify for colorblind players.

Did Minecraft change the ores?

All New Ores In Minecraft 1.17. A new material called the Deepslate ore has been added to the game. Since the Deepslate ore is found in much deeper levels, they are a bit harder than other ores and they take a little longer to mine. A Deepslate variant of all the existing and new ores in Minecraft 1.17 has been added.

Did they change the diamond ore texture?

The texture of diamond ore has been changed. Diamond ore now generates as a spread, generating below Y=16 and peaking at Y=-64.