WordPress.org

0.9.1

• Now detects and adds absent MySQL indexes to wp_comments.user_id and wp_links.link_owner columns. Greatly speeds performance and enables use on much larger databases. Big props to Raph Koster for help debugging!
• Enables MySQL sql_big_selects config var at runtime for use on shared hosts and other installations where this is disabled by default.
• MySQL SELECT errors now logged/shown to the user as appropriate.
• Hard limit of 1000 users per deletion to prevent long-running operations. Upped limit to 10000 records per SELECT, thanks to improved SQL and indexes.
• No longer deletes users with only comments marked as "spam." This is a small functional regression, but it speeds SQL performance. Once the spam is permanently removed these users will be deleted anyway.
• Minor bug fix affecting settings page user list display w/ bbPress users.
• Changes to method visibility. Many previously public methods now protected.
• Code refactoring.

0.9

• Version/compatibility bump so that wordpress.org plugin repository info is accurate.
• Added check for wp_usermeta 'last_posted' record so that users of database-integrated bbPress installations are not deleted if they have ever posted anything.
• Added hard limit of 5000 records to prevent long-running operations.
• Added a list of user accounts pending deletion to the settings page.
• Style fix to inline error messages per r16205 changes to WordPress core file wp-admin/css/colors-fresh.dev.css.
• Miscellaneous minor style fixes.

0.3

• Added standard WordPress Users section icon and printing of status message on options update.
• Updated deprecated PHP syntax for string access by character in lcfirst().
• Very minor refactoring and tweak of message text.

0.2

• Fixed weird edge case where no usermeta records exist for a given user. Before: this caused user removal to abort and an error message to be logged. Now: any such users are deleted.
• Added nonce checking to "Remove now" button on admin page.
• Slight code refactor to remove buried strings.
• Cosmetic change to log strings so plural "s" not added to singular words.

0.1

• Initial public release.
• Tested using WordPress 3.0.1 and PHP 5.2.6 and 5.2.14.