OpenAI: ChatGPT gets a major upgrade, will now remember conversations from years ago; only certain users will be able to use this feature..

OpenAI has rolled out a major and essential feature for ChatGPT Plus and Pro users. ChatGPT can now search across your entire chat history. This new system, internally called the Personal Context Agent Tool, allows users to ask questions and get accurate answers based on all their conversations since their account was created. Importantly, ChatGPT now displays the source of the information from previous chats as a clickable link, making the answers more reliable and transparent.

What's New?
Previously, while ChatGPT stored your old chats, retrieving specific information from them was often difficult. With the new update, ChatGPT Plus and Pro users can now search their entire chat history, even conversations that are months or years old.

What is the Personal Context Agent Tool?
The technical name for this new feature is the Personal Context Agent Tool (codename: q7dr546). This tool is activated for history-based queries and helps ChatGPT understand what topics the user has discussed previously. For example, finding an old recipe, a previously created workout plan, or a discussion about a project or idea. You no longer need to open multiple chats to find this information; it's all accessible in one place.

Source Link Below
When ChatGPT uses information from one of your old chats, it will display a source link below the answer. You can click on this link to go directly to the previous conversation where the context was taken from. This increases the reliability of the information.

What were the previous problems?
Previously, the chat history search feature often displayed incorrect or irrelevant chats. It would get confused with multiple similar threads and fail to find the correct information. The new system largely addresses these shortcomings.

Which users will get this feature?
Currently, this feature is only available to ChatGPT Plus and Pro subscribers. This feature is being rolled out globally and will cover all chats from the time the account was created. While this is a significant upgrade for ChatGPT, Google's Gemini already offered the ability to reference past conversations back in February 2025.

Gemini users have been experiencing more context-aware chats for quite some time. Nevertheless, OpenAI has recently introduced several major improvements, including the rollout of GPT-5, the release of ChatGPT-5.1, new personalities, a more natural tone, and faster responses.

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