Updates

What just changed?

New models, rollouts into products, new capabilities. Every change is backed by its source and dated by when it happened, not by when we wrote it down. Whether a statement still holds today is a separate check — where that is pending, it says “not verified”.

Last change recorded (yesterday)957 sourced entries · 166 source documents

Most recent changeDeployment5 months ago

GPT-5.5 is rolling out in Microsoft 365 Copilot — as reported then; current state not verified

An existing model reached — or left — a product. Wider use, not a new capability.

Provider
OpenAI
In products
confirmed in 2 products
Open the model →
20262025-03: 1 sourced changes12025-06: 1 sourced changes12025-08: 1 sourced changes12025-09: 2 sourced changes22025-12: 1 sourced changes12026-03: 1 sourced changes12026-04: 1 sourced changes1
Sourced changes per month · max 2Month of the time each update states (effective time).

ModelsDeploymentProductCorrectionThe date is when it happened according to the source.

Also show 17 entries without movement (record-keeping, confirmations)

March 2026

  1. 7 months agoadded to the record on 29 Sept 2026

December 2025

  1. 10 months agoadded to the record on 29 Sept 2026

September 2025

  1. 12 months agoadded to the record on 29 Sept 2026
  2. 12 months agoadded to the record on 29 Sept 2026

August 2025

  1. 14 months agoadded to the record on 29 Sept 2026

June 2025

  1. 16 months agoadded to the record on 29 Sept 2026

    Microsoft 365 Copilot · Deep research: now available

    ProductMicrosoftpreviously: announced

March 2025

  1. 19 months agoadded to the record on 29 Sept 2026