← ChatGPT & Codex changelog
ChatGPT — January 22, 2026
v2026-01-22-f474fd75 includes 0 new features and 0 fixes. 2 changes
Changed
- 5.2 Personality System Prompt Update
- We’re updating GPT-5.2 Instant’s default personality to be more conversational and better at adapting its tone contextually, making exchanges feel smoother and more natural. You can still select a different base style and tone for ChatGPT, along with tuning characteristics like warmth and emoji use, within the Personalization menu in settings.