← ChatGPT & Codex changelog
ChatGPT — January 15, 2026
v2026-01-15-415f7d21 includes 0 new features and 0 fixes. 2 changes
Improved
- Improved memory for finding details from past chats (Plus & Pro)
Changed
- When reference chat history is enabled, ChatGPT can now more reliably find specific details from your past chats when you ask. Any past chat used to answer your question now appears as a source so you can open and review the original context. This memory improvement is now available for Plus and Pro users globally.