What is the difference between tomcat versions

The differences between major versions are reflected in support for new specifications, performance improvements, security, and adaptability to new technologies. Detailed introduction: 1. Tomcat 7 is a very stable and mature version, supports Servlet 3.0 and JSP 2.2 specifications, introduces some new management and monitoring functions, including JMX and JMX proxy, and improves support for WebSocket; 2. Tomcat 8Introduced support for Servlet 3.1 and JSP 2.3 specifications, improved support for HTTP/2, etc.

## Operating system for this tutorial: Windows 10 system, Dell G3 computer.

Apache Tomcat has multiple versions, each version has some new features and improvements. Here are the differences between some major versions:

Tomcat 7:

Tomcat 7 is a very stable and mature version that supports Servlet 3.0 and JSP 2.2 specifications.

Introduced some new management and monitoring features, including JMX and JMX agents.

Improved support for WebSocket.

Tomcat 8:

Tomcat 8 introduces support for the Servlet 3.1 and JSP 2.3 specifications.

Improved support for HTTP/2.

Introduced support for non-blocking I/O to improve performance.

Tomcat 9:

Tomcat 9 supports Servlet 4.0 and JSP 2.3 specifications.

Introduced improved support for HTTP/2.

Improved support for SSL and TLS, including support for ALPN.

Tomcat 10:

Tomcat 10 supports Servlet 5.0 and JSP 3.0 specifications.

Removed dependencies on no longer supported Java EE technologies in favor of the Jakarta EE specification.

Introduced support for Java 9 and above.

The differences between these versions are mainly reflected in support for new specifications, performance improvements, security and adaptability to new technologies. Choosing the Tomcat version that suits your needs depends on your project requirements, need for new features, and compatibility requirements with older versions. When choosing a Tomcat version, it is recommended that you check the official release notes to learn about the specific changes and improvements in each version.

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