"Apache 2.0 offers numerous enhancements, improvements and
performance boosts over the 1.3 codebase. The most visible and
noteworthy addition is the ability to run Apache in a hybrid
thread/process mode on any platform that supports both threads and
processes. This has shown to improve the scalability of the Apache
HTTPD server significantly in our early testing, on some versions
of Unix. With this version of Apache, we have also added support
for filtered I/O. This allows modules to modify the output of other
modules before it is sent to the client. This release also greatly
improves the performance and robustness of Apache on the Microsoft
Windows Operating Systems. Lastly we are proud to announce support
for BeOS in this version of the server."