As you probably know, the release of new versions of WordPress usually faces themes and plugins issues. WordPress 3.3 is no exemption to this so this is probably the primary reason why it is recommended to update plugins and themes each and everytime throughout the developmental process. Venturing into WordPress 3.3 is not as complicated as you think, as long as you know what to keep an eye out once you upgrade.

To help you get started easily, here are some major plugin compatibility issues and plugin errors to watch out when upgrading:

But first off, there is no need to fret, okay? Breathe in and out and go ahead if you want to upgrade. These issues should not keep you from trying out WordPress 3.3, but just know that while plugins and themes get their WordPress 3.3 act together, it may not be a perfect transition. Refer to this list when you notice any glitch.

4 Common Plugin Problems
1. Postie plugin – As reported, this specific plugin is usually causing problems such as being presented with a “white screen” after upgrading or keeps the user from getting to the Dashboard. The reason for this could be due to plugins that remained active when the upgrade was performed.

What to do? Rename the plugin directory to plugins-old located in ./wp-content/plugins on your webserver, then create a new directory. Log in and click on Plugins from your main menu. Go to Dashboard and click on Updates and Reinstall WordPress 3.3. After completing the installation, delete the ./wp-content/plugins and rename plugins-old to plugins. Finally, reactive each plugin and ensure that all the blogs work successfully.

2. qTranslate – This plugin usually disable itself upon activation.
3. Organize Series plugin
4. Markdown QuickTags plugin

Note: It is suggested that developers must use wp_enqueue_scripts. Now if you have enqueue styles in your plugin or theme, it’s best to update it to usewp_enqueue_scripts so you don’t mess up styles on your Dashboard.

4 Precautions before Upgrading

1. Always back up your database.
2. Don’t forget to update all your WordPress plugins and themes. Click on Dashboard, then go to Updates.
3. Deactivate each of your plugins before performing the upgrade. Take note the common WordPress 3.3 update problems are caused by plugins. However, make sure to reactivate the plugins one by one after finishing the upgrade.
4. Clear blog cache once the updated is complete.