Features of jsp2.1
Features of jsp2.1      ...; Enterprise Edition (Java EE) 5 is to ease development. Now the Jsp2.1 includes..., therefore jsp2.1 was developed to enhance the expression language to meet 

Difference between JSP 2.0 & JSP 2.1
; Features of jsp2.1 The main purpose of Java Platform,  Enterprise Edition...;       Features of Jsp 2.0 JSP 2.0... new and interesting features. This version is fully compatible with JSP1.2. 

JSP Tutorials
below.    JSP Versions: Features of JSP 2.1... is to ease development. Now the Jsp2.1 includes the Java Standard Tag Library...; New Features in JSP 2.0 In this tutorial you will know the features added