ChatGPT & Codex changelog

ChatGPT — August 27, 2026

Expanded functionality for temporary chats introduces new personalization settings, allowing responses to incorporate memory, plugins, and custom instructions when a conversation begins. While non-personalized remains the default, users now have the flexibility to create tailored temporary chats. Additionally, the ability to save any temporary chat transforms it into a permanent entry within your chat history, adopting your account's full personalization and model-improvement preferences.

Added

  • We’re rolling out new controls in temporary chat. You can now choose to personalize responses in a temporary chat with memory, plugins, and custom instructions from your regular chat settings. You can also choose to save a temporary chat.
  • Personalized: When you create a temporary chat, you can choose to have personalized responses. Personalized temporary chats can use your memories, custom instructions, and plugins to tailor responses. They do not create new memories and remain out of your chat history unless you save them. Personalization can be set only when you start a temporary chat and cannot be changed after the conversation begins.
  • Non-personalized: By default, temporary chats are not personalized. Non-personalized temporary chats do not use memory, custom instructions, or plugins, and they do not create new memories.

Changed

  • More controls in temporary chat
  • How it works
  • Saving a temporary chat: When a conversation becomes useful for the future, you can add it to your chat history. Saving converts it into a regular chat, so it then follows your account-level personalization settings and model-improvement preferences. For example, if you have memory enabled and save a temporary chat, this will become part of your chat history and can be referenced to personalized future responses.