Oracle Fusion 26D release dates and cohorts
Typical test and production Fridays for Oracle Fusion Cloud 26D, by cohort, from Oracle's published update rule. Use them to plan the two-week window; confirm your own dates in the Oracle Cloud Console.
In short: Oracle Fusion Cloud 26D is the fourth 2026 quarterly update. Per Oracle's published rule, test environments take the update on the first Friday of the cohort month and production on the third Friday, two weeks later. Typical dates: Cohort A Fri 6 Nov 2026 / Fri 20 Nov 2026, Cohort B Fri 4 Dec 2026 / Fri 18 Dec 2026, Cohort C Fri 1 Jan 2027 / Fri 15 Jan 2027. These are derived from Oracle's rule, not a published per-environment calendar — confirm yours in the Oracle Cloud Console. On the content side, Oracle's 26D What's New lists 768 features across the modules we cover: 173 on by default, 89 opt-in, and 23 former opt-ins that are now standard with 26D (9 switch on for everyone, 14 need setup).
Source for the cohort rule: Oracle Fusion Insider, "Quarterly updates made easy" (published 10 Dec 2025). Oracle publishes the rule rather than a public list of dates for every environment. Confirm your own dates in the Oracle Cloud Console. Middle East regions update on the Thursday before each Friday.
Get the 26D checklist now: what switches on by itself, which former opt-ins are now standard, what to test
Inside the free 26D checklist (PDF):
- The 23 opt-ins Oracle lists as ending with 26D: 9 switch on for everyone, 14 need setup
- 9 HCM Redwood default switches and other HCM notices for 26D
- 9 baseline regression checks, plus typical 26D test and production dates by cohort
Then one plain-English email per Oracle quarterly update, linked to Oracle's docs. Free. 4 emails a year plus short opt-in alerts. Unsubscribe anytime. Read issue #1 (26C) → · Privacy
Typical 26D dates by cohort
| Cohort | Test environments | Production | Note |
|---|---|---|---|
| Cohort A | Fri 6 Nov 2026 | Fri 20 Nov 2026 | — |
| Cohort B | Fri 4 Dec 2026 | Fri 18 Dec 2026 | — |
| Cohort C | Fri 1 Jan 2027 | Fri 15 Jan 2027 | This date is New Year's Day. Oracle may schedule this cohort differently, so confirm yours in the Oracle Cloud Console. |
Cohort months for 26D (fourth 2026 release): A = November 2026, B = December 2026, C = January 2027.
What changes when 26D lands
Oracle's 26D What's New documents list 768 features across the modules Fusion Updates covers. Use these lists for the content of the update:
Frequently asked questions
When does Oracle Fusion 26D update my environments?
It depends on your cohort. Applying Oracle's published rule (test on the first Friday of the update month, production on the third) gives Cohort A Fri 6 Nov 2026 / Fri 20 Nov 2026, Cohort B Fri 4 Dec 2026 / Fri 18 Dec 2026, and Cohort C Fri 1 Jan 2027 / Fri 15 Jan 2027. Confirm your cohort and exact dates in the Oracle Cloud Console. Source: Oracle Fusion Insider.
Which months are Cohorts A, B and C?
Per Oracle Fusion Insider: Cohort A is February, May, August and November; Cohort B is March, June, September and December; Cohort C is April, July, October and January. 26D is the fourth 2026 release, so those months are November 2026, December 2026 and January 2027.
Are these Oracle-published dates for my pod?
No. Oracle publishes the cohort rule; it does not publish a public list of every environment's date. The table on this page applies that rule. Always confirm your own dates in the Oracle Cloud Console.
What should I do in the two-week test window?
Start with the 26D what-to-test checklist, review features on by default and opt-ins, and decide which of the 23 former opt-ins now standard need setup. See also Prepare for a quarterly update.
Related guides: How opt-in and enablement work · Redwood defaults calendar · Prepare for a quarterly update · AI and agentic features in 26D · 26D hub · Free downloads
Get the quarterly briefing
One email per update (plus short alerts before opt-in expirations): the changes that matter, by module, and what to test. Free 26D readiness checklist PDF when you subscribe.
Free. 4 emails a year plus short opt-in alerts. Unsubscribe anytime. Privacy