Internet Explorer 1.5 was released several months later for Windows NT and added support for basic table rendering.
By including it free of charge on their operating system, they did not have to pay royalties to Spyglass Inc, resulting in a lawsuit and a US$8 million settlement on January 22, 1997.
Leading up to the release of the final browser, Microsoft released updated platform previews, each featuring improved Java Script compiling (32-bit version), improved scores on the Acid3 test, as well as additional HTML5 standards support, approximately every 6 weeks. The first public beta was released at a special event in San Francisco, which was themed around "the beauty of the web".
The release candidate was released on February 10, 2011, and featured improved performance, refinements to the UI, and further standards support.
Internet Explorer 10 became generally available on October 26, 2012, alongside Windows 8 and Windows Server 2012, but is by now supported on Windows Server 2012, while Windows Server 2012 R2 only supports Internet Explorer 11.