Minecraft Ores Not Re-Textured

Today I have just updated Minecraft for the Caves and Cliffs Update Part 1 (1.17) and loaded up one of my survival worlds that I have created just a few days ago. I am pretty late into the game, and have already found 15+ diamonds, and created a long strip mine in the process. I was trying to find some copper, but then just remembered that I have loaded the chunks around me, so I just decided to mine/explore caves. I found a cave shortly after, but then noticed that the ore textures are still the old same way they were before. Are they supposed to stay the same? Why aren’t they different? Am I supposed to turn on a setting? (Also, I’m on Nintendo Switch)

EDIT: I just went mining in my world and found a massive ravine, in which there were lots of ores. Some of the ores had the new texture, while others didn’t. Not sure why this happened though…