Core update
December 2025 core update
Rolled out 11 Dec – 29 Dec 2025, 18 days, 1 hour. Google’s page for it
What Google posted
Newest first. Times are UTC, with the Pacific time Google shows.
· 29 Dec 2025, 11:05 PST
The rollout was complete as of December 29, 2025.
· 11 Dec 2025, 09:25 PST
Released the December 2025 core update (developers.google.com). The rollout may take up to 3 weeks to complete.
Next to other core updates
Google’s 14th core update on its status dashboard, which lists them from November 2021.
It took 18 days, 1 hour. Of the 13 core updates before it, 4 took longer and 9 were shorter; they averaged 18 days, 3 hours.
The longest core update since the November 2024 core update.
- Before it: June 2025 core update, 30 Jun 2025
- After it: March 2026 core update, 27 Mar 2026
Get an alert next time
We email you when Google starts or finishes a ranking update. It’s free, and every email has an unsubscribe link. Sign up on the Google updates page.
Source: Google Search Status Dashboard. Names, dates and notes are Google’s own. See every Google update.
Join the SEOComet waitlist
SEOComet isn’t open to the public yet. Leave your email and we’ll tell you when you can add your sites. The SEO Toolbar Chrome extension is free and works today.