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For Version 4.0, the database version (db_version in wp_options) changed to 29630, and the Trac revision was 29711.

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Installation/Upgrade Information

To download WordPress 4.0, visit http://wordpress.org/download/release-archive/

For step-by-step instructions on installing and upgrading WordPress:

• Upgrading WordPress

If you are new to WordPress, we recommend that you begin with the following:

• New To WordPress - Where to Start
• First Steps With WordPress or Upgrading WordPress Extended
• WordPress Lessons