Frameworks in Spring

•  Technology's / frameworks in Spring
• Spring core
• Spring MVC
• Spring boot
• Spring data
• Hibernate

minimum web version required to use JSTL

 Q What is the minimal web version required to use JSTL?

And : 2.4

For example following tag from web.xml uses web 4.0

 <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd" version="4.0">  
 </web-app>  

d