WordPress Development Stack Exchange is a question and answer site for WordPress developers and administrators. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I am running WPMU 2.9.2 and want to update to WP 3.2.1.

As I understand it, WP 3 took in WPMU. I imagine that involved some big changes to the implementation of WPMU. What steps do I need to take to perform the upgrade?

Thank you.


share|improve this question
up vote 2 down vote accepted

The codex has some very detailed advice: Upgrading_WPMU. Make sure to test it on a safe copy of the real site.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.