AOLserver is a multithreaded, Tcl-enabled, massively scalable and extensible Web server tuned for large scale, dynamic Web sites. It includes complete database integration, dynamic page scripting, and an open, extensible architecture.
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Many contributions from the AOLserver community are included, and Tcl was upgraded to 8.3.2. Other new additions include many bug fixes, stable virtual hosting, a cleaner build environment, a new memory allocator with range checking, thread library fixes, smarter control port, fixes for Tcl problems with forked processes, BSAFE 4 and 5 support, cleaner logging, MSIE bug workarounds, Red Hat SPARC support, HTTPS keep-alive, sample SSL key and cert, and more.