# Performance Enhancements

Documentation Contents

> Version 1.4 of the JavaTM 2 SDK and Java 2 Runtime Environment contain many performance enhancements including improvements in startup time, memory footprint, and program execution speed. The most significant performance enhancements are detailed below.

Performance Enhancements

- Improvements to Program Execution Speed

See Also

- Improvements to Startup Time and Memory Footprint - These improvements were made in previous release J2SDK 1.3.
- Performance Documentation for the Java Platform (on java.sun.com web site)
- Performance and Scalability Guide (on the java.sun.com web site)
- Performance FAQ (on the java.sun.com web site)
- Java HotSpot VM Options (on the java.sun.com web site)

*As used on this web site, the terms "Java Virtual Machine" or "JVM" mean a virtual machine for the Java platform.

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