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README.md

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 PHP PhantomJS
 =============
 
+**Please Note:** Version 4.0 of this library is currently waiting on an [unresolved issue](https://github.com/ariya/phantomjs/issues/12948) with PhantomJS 2.0. 
+
 PHP PhantomJS is a flexible PHP library to load pages through the PhantomJS 
 headless browser and return the page response. It is handy for testing
 websites that demand javascript support and also supports screen captures.