Microsoft says it will provide a preview version of Internet Explorer 10 for Windows 7 users in mid-November. The software maker has been suspiciously quiet about its Internet Explorer plans for Windows 7, always promising that the latest version, available in Windows 8, would make its way to the operating system.

In a company blog post, Microsoft's Rob Mauceri explains that a final version will follow after the company has collected developer and customer feedback. "IE10 brings improved real-world site performance and additional standards support to Windows 7 that Web developers have been asking for," says Mauceri. "IE10 on Windows 7 has the same standards based platform for developers to target as IE10 on Windows 8."

It's not clear why the company has opted to ship a preview version instead of final code for web developers. Initial reaction from the comments on Microsoft's blog post suggest that some developers were expecting a final release soon, rather than a preview. "Why preview?" asks one. "We want to develop optimized sites now!" Another says "I thought IE10 rtm would be out on 26th oct along with windows 8. Not happy microsoft!"