Web Stack 1.5 is now available.  

New in this release are the Web Stack Enterprise Manager, and support for fully relocatable IPS(5) based Update Center distribution. In addition, Web Stack 1.5 ships with the most recent evolutions of the open source releases including latest releases of Apache web server, MySQL 5.1 and more. At a glance, Web Stack 1.5 release includes the following:

Web Stack Enterprise Manager
Fully relocatable Update Center ips(5) image distribution
Apache HTTP Server 2.2.11
lighttpd 1.4.21
memcached 1.2.5
MySQL 5.0.67 and 5.1
PHP 5.2.9
Python 2.6
Ruby 1.8.7
Squid 2.7.STABLE5
Tomcat 6.0.18
GlassFish v2.1
Sun Continuous Integration Server 1.312

Web Stack page has more information including data sheet and links to download and documentation: 
http://sun.com/webstack
http://www.sun.com/software/webstack/get.jsphttp://wikis.sun.com/display/WebStack/Sun+GlassFish+Web+Stack+Documentation 

Source/Kaynak : http://blogs.sun.com/JenniferGlore/entry/web_stack_1_5_released