Will Anthropic bring back the thinking-chain feature?

Pretty much the title. I am a graduate student and I use AI sparingly so I never really know what is going on with updates, etc. I use Claude because of the feature that shows it's reasoning so I can improve my prompting and have noticed that it is now gone. I have seen some fuss about this change on this forum and so I am wondering if anyone knows if Anthropic intends to bring this feature back or if its a permanent change? If so, does anyone know of any other companies that have a similar feature?