https://msdn.microsoft.com/en-us/library/8aea05e3-8c1e-4a9a-9614-31f71e679467 Internet Explorer 11 and later support the ECMA-402 ECMAScript Language Specification with no variations or extensions. https://msdn.microsoft.com/en-us/library/8aea05e3-8c1e-4a9a-9614-31f71e679467 <b>Protocol Revision:</b> 2.2<br/> Tue, 28 Aug 2018 MS-ECMA402-20180828 https://msdn.microsoft.com/en-us/library/8aea05e3-8c1e-4a9a-9614-31f71e679467 <b>Protocol Revision:</b> 2.2<br/> Fri, 23 Mar 2018 MS-ECMA402-20180323 https://msdn.microsoft.com/en-us/library/8aea05e3-8c1e-4a9a-9614-31f71e679467 <b>Protocol Revision:</b> 2.2<br/> Thu, 22 Feb 2018 MS-ECMA402-20180222 https://msdn.microsoft.com/en-us/library/8aea05e3-8c1e-4a9a-9614-31f71e679467 <b>Protocol Revision:</b> 2.2<br/> Tue, 03 Oct 2017 MS-ECMA402-20171003 https://msdn.microsoft.com/en-us/library/8aea05e3-8c1e-4a9a-9614-31f71e679467 <b>Protocol Revision:</b> 2.2<br/> Tue, 14 Mar 2017 MS-ECMA402-20170314 https://msdn.microsoft.com/en-us/library/8aea05e3-8c1e-4a9a-9614-31f71e679467 <b>Protocol Revision:</b> 2.2<br/> Wed, 02 Nov 2016 MS-ECMA402-20161102