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24. mod_perl 2.0: Installation and Confi... > 24.1. What’s New in Apache 2.0

What’s New in Apache 2.0

Whereas Apache 1.2 and 1.3 were based on the NCSA httpd code base, Apache 2.0 rewrote big chunks of the 1.3 code base, mainly to support numerous new features and enhancements. Here are the most important new features:

Apache Portable Runtime (APR)

The APR presents a standard API for writing portable client and server applications, covering file I/O, logging, shared memory, threads, managing child processes, and many other functionalities needed for developing the Apache core and third-party modules in a portable and efficient way. One important effect is that it significantly simplifies the code that uses the APR, making it much easier to review and understand the Apache code, and increasing the number of revealed bugs and contributed patches.


  

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