What are WordPress installation percentages by version?

I’m in the process of developing a plugin, and I’d like to figure out which versions of WordPress to support. But to get a good idea I’d need to know what percentages of old WordPress versions make up the install base. Does such information exist?

Alternatively if such information doesn’t exist, does anyone have a suggested version I should support my plugin back to?

2 Answers
2

There’s a page in the Codex that shows exactly that:

  • WordPress > About » Statistics

But really, it all depends on what features you’re using. A safe bet for a new plugin would be to support WordPress 3.1.X and above (since that’s the current stable release). You’re setting yourself up for a lot of hurt if you try to do too much backwards compatibility work.

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