Servlet Spec JSP Spec EL Spec WebSocket Spec JASPIC Spec Apache Tomcat version Actual release revision Supported Java Versions
4.0 TBD (2.4?) TBD (3.1?) TBD (1.2?) 1.1 9.0.x 9.0.0.M6 (alpha) 8 and later
3.1 2.3 3.0 1.1 1.1 8.5.x 8.5.2 (beta) 7 and later
3.1 2.3 3.0 1.1 N/A 8.0.x 8.0.35 7 and later
3.0 2.2 2.2 1.1 N/A 7.0.x 7.0.69 6 and later
(7 and later for WebSocket)
2.5 2.1 2.1 N/A N/A 6.0.x 6.0.45 5 and later
2.4 2.0 N/A N/A N/A 5.5.x (archived) 5.5.36 (archived) 1.4 and later
2.3 1.2 N/A N/A N/A 4.1.x (archived) 4.1.40 (archived) 1.3 and later
2.2 1.1 N/A N/A N/A 3.3.x (archived) 3.3.2 (archived) 1.1 and later