Oracle Fusion 26D reaches Cohort A test environments on November 6, 2026, with 884 features in Oracle’s Feature Listing. 55 of them are flagged as large-scale impact to existing processes, the most of any quarterly update in the current listing.
More of 26D lands in roles, privileges and setup than in new screens. This guide gives your team a plan for the two weeks between your test and production updates.

What’s inside
- 26D at a glance: the numbers that matter from Oracle’s Feature Listing
- Your 26D timeline: cohort dates mapped against holiday freezes and year-end close
- Three worksheets to fill before test: baseline, AI agent inventory and feature enablement map
- What to compare and test during the two-week window
- A go/no-go gate with sign-off before production
- What to capture after production, so 27A starts from a known state
- A RACI for functional, security, DevOps and finance leads
Who it’s for
Oracle Fusion Cloud application owners, functional leads, security administrators, and DevOps and release managers preparing for 26D.
26D dates
| Cohort | Test environment update | Production update |
|---|---|---|
| A | Friday, November 6, 2026 | Friday, November 20, 2026 |
| B | Friday, December 4, 2026 | Friday, December 18, 2026 |
| C | January 2027 (confirm in your Oracle Cloud Console) | Two weeks after test |

See 26D readiness in action
Flexagon Configuration Management and Flexagon DevOps handle the configuration work in this guide: baselines, environment comparison, promotion and audit evidence across Oracle Fusion Cloud and EBS.
