This plugin is outdated and might not be supported anymore
Ben’s Version Checker

Ben’s Version Checker

Details
View on WordPress

This plugin checks the version numbers of other wordpress sites. It will report the status of the site and its version number. The plugin gets this information from the readme.html file of the listed sites. The plugin uses wordpress to lookup the latest wordpress version and highlights the versions accordingly.

Details

Plugin code:
bens-version-checker
Plugin version:
1.0.0
Outdated:
Yes
WP version:
4.0.0 or higher
PHP version:
or higher
Test up to WP version:
4.1.41
Total installations:
0
Last updated:
2015-01-29
Rating:
Times rated:
0
1-0-0