This version brings several important new features:

Wildcard support

http://example.com/?field=abc* will fetch all posts that have a meta key field with any value beginning with abc: ‘abc’, ‘abcd’ etc.

The ‘*’ character can appear multiple times, anywhere: http://example.com/?field=*ab*c*&another=foo*bar

Relevance:

There’s a new checkbox in the settings page that allow the following behaviour:

http://example.com/?key1=value1&key2=value2 will fetch posts that have at least one of those key=value pairs.

There is also a new template tag that displays the relevance for each post: meta_relevance()

Enhanced search & replace

Now you can select in which meta taxonomy you want values replaced. This allows for better control over your custom fields.

Important: The parameters for meta_cloud() have changed. Check template-tags.php to learn more.