Update Checker is a small plugin that can be used bu other plugins to check for the availability of upgrades.
Plugin makers: if you want to use this it's really easy.
Add a few lines to your plugins admin menu file (or files) and upload a version file to your website. When the Admin using your plugin visits the admin section for your plugin they will be notified by a message at the top of the page about the availabilty of updates to your plugin.
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It can be obtained from [color=#ff0000][u][link=http://www.bugrain.com/download.php?view.10]Update Checker v1.0[/link][/u][/color].