I may totally turn out to be wrong about some of this since this is the first day I encountered the latest change to ChatGPT. I use it a lot. I have about 20 custom GPTs and I'm very happy with the way they respond. It took some time to get each one just the way I wanted it.

But the last few days it kept putting a bar above the prompt box telling you they're going to get rid of custom GPTs on December 11 and that you should convert your custom GPTs to plugins.

 Okay that sounds structural or whatever but how different could it be?

 I converted one of my most-used custom GPTs to a plugin. And that's where the trouble started. 

* You can't edit the plugins the same way you did a custom GPT if you wanted to update it. Now you have to give it skills.
* And just a warning to anybody else who uses custom UPTs: you're not going to be able to get back those instructions once you convert it to a plugin because it's just gone. 
* And I had already started a chat with the plugin. I closed ChatGPT and then came back and reopened it. Looked in the sidebar to find the chat that I had started. It wasn't there. 
* Unless somebody can tell me differently, the only thing I see is you have to start a new chat every time. 
* The instructions in the custom GPTs are supposed to end up in the skills section of the plugin but yet it's empty. 

I can just see how that went. They all had a meeting. And some doofus raised his hand and said 'I know. Let's just completely change everything all at one time because nobody will mind learning how to use these cool new plugins."

But that's perfectly fine there are other companies. It's a shame because I really was comfortable using ChatGPT and it's working for me really well. But goodbye ChatGPT. 

Some Doofus At OpenAI Must Have Raised Their Hand In A Meeting And Said "I Know Let's Really Mess It Up!"