| Servlet API version |
Released |
Platform |
Important Changes
|
| Servlet 4.0 |
Under development |
Java EE 8 |
HTTP/2
|
| Servlet 3.1 |
May 2013 |
Java EE 7 |
Non-blocking I/O, HTTP protocol upgrade mechanism (WebSocket)[1]
|
| Servlet 3.0 |
December 2009 |
Java EE 6, Java SE 6 |
Pluggability, Ease of development, Async Servlet, Security, File Uploading
|
| Servlet 2.5 |
September 2005 |
Java EE 5, Java SE 5 |
Requires Java SE 5, supports annotation
|
| Servlet 2.4 |
November 2003 |
J2EE 1.4, J2SE 1.3 |
web.xml uses XML Schema
|
| Servlet 2.3 |
August 2001 |
J2EE 1.3, J2SE 1.2 |
Addition of Filter
|
| Servlet 2.2 |
August 1999 |
J2EE 1.2, J2SE 1.2 |
Becomes part of J2EE, introduced independent web applications in .war files
|
| Servlet 2.1 |
November 1998 |
Unspecified |
First official specification, added RequestDispatcher, ServletContext
|
| Servlet 2.0 |
|
JDK 1.1 |
Part of Java Servlet Development Kit 2.0
|
| Servlet 1.0 |
June 1997 |
|
|
