Should I learn XML 1.0 or XML 1.1?
Unless you have a specific requirement to work with XML 1.1 (which is very rare), you should read the XML 1.0 Recommendation. Tim Bray, one of the original editors of the specification, has created an excellent annotated version of it which you can find at http://www.xml.com/axml/axml.html For a bit more info/opinion on XML 1.1, check … Read more