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Easy Theme and Plugin Upgrades was created to make the life of WordPress users easier. Without this plugin, the only upgrade path you have for download zip plugins and themes is to deactivate the theme/plugin, delete it, upload, and reactivate. With this plugin, upgrading is as simple as selecting the zip file to upload, selecting "Yes" from a drop-down, and clicking "Install Now".

Upgrading a Theme

1. Download the latest zip file for your theme.
2. Log into your WordPress site.
3. Go to Appearance > Themes.
4. Click the "Install Themes" tab.
5. Click the Upload link below the main page tabs.
6. Select the zip file with the new theme version to install.
7. Select "Yes" from the "Upgrade existing theme?" option.
8. Click "Install Now".

Upgrading a Plugin

1. Download the latest zip file for your plugin.
2. Log into your WordPress site.
3. Go to Plugins > Add New and click the Upload tab at the top of the page.
4. Select the zip file with the new plugin version to install.
5. Select "Yes" from the "Upgrade existing plugin?" option.
6. Click "Install Now".