Open Magento Connect Manager

Navigate to System > Magento Connect > Magento Connect manager

Log In

Read the following warnings, and take them into consideration when you upgrade

Don't put your store into Maintenance mode unless you know the ramifications. Anytime you install Codisto Connect, we suggest unticking the "Put store on the maintenance mode while installing/upgrading/backup creation" as this can lead to problems with Magento's installation functionality having issues and your store entering maintenance mode.

Make sure that Magento compilation is disabled before installing Codisto Connect. After installation, you may re-enable compilation. You can access the compilation options via System -> Tools -> Compilation.

For more information regarding Magento Compilation please see  here under the heading "Magento Compilation / Cache Problems"

Click "Check for Upgrades"

Find the codistoconnect Plugin in the plugin list

It will have a yellow background if there is an upgrade available.

Select the latest version from the drop down list

Click "Commit Changes"

Confirm successful upgrade

You will get output like the following:

Click "Refresh"

Confirm version

After refreshing, the plugin list will show the installed version for codistoconnect

Return to Admin

Click the "Return to Admin" link

That's it. The plugin is upgraded.