Image Editor

In WordPress 2.9 whenever you upload an image, you can edit it using the edit image option.

The image editor contains several useful functions such as image cropping, image rotation and image flipping. In addition, you can also undo and redo your actions.
Post Trash Can

Wordpress 2.9 provides a very useful feature, called Post Trash Can. We all are very well aware of this feature and we use it for emails. However, you can use this feature for posts and comments from wordpress 2.9.

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The new Trash feature completely replaces the old Delete functionality, when you click on the Trash link, the status of the post will be moved to “Trash”, and can be restored for a certain time limit, 30 days by default.

To view all the posts or page in Trash, just visit the Trash menu in the top of the Edit Posts or pages section.

You can also limit the number of days the trash can/should hold deleted posts by adding the following line to your wp-config.php:

define(’EMPTY_TRASH_DAYS’, 7);

Change the number 7 to the number of days you want to store deleted copies in the trash can.
Restoring Deleted Posts

If you deleted posts by mistake, you can always get it back by visiting the Trash menu and clicking on the restore link.
Disabling Trash Can Feature in WP 2.9

To disable trash feature, just add the following code to wp-config.php: define (’EMPTY_TRASH_DAYS’, 0);

Once you do that, you will see Delete Permanently option instead of Trash.

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Embedding Videos and Images with oEmbed

oEmbed provides media providers with a way to provide additional information about a media used from their sites you are adding it from. For more information on this visit the oEmbed site.

In short, you can now embed videos directly into WordPress by providing the URL of the video, instead of having to add the entire embed code into it.

oEmbed support is enabled by default, you can disable it by visiting Settings -> Media.
Tackling Duplicate Content With rel=”canonical”

WordPress 2.9 adds a new tag to the page header which specifies the canonical path to the actual content. Using this tag is highly suggested if you want to tackle duplicate content.
Automatic Database Repairing

WordPress 2.9 introduces a new feature which can help you to automatically repair database problems. This can come in very handy as not many users usually manage their database or optimize them.

To setup Automatic DB repairs in WP 2.9, you will need to add a new constant to your wp-config.php file as follows:

define(’WP_ALLOW_REPAIR’, true);

Once you do that, WordPress will automatically repair the DB periodically