The following recommended versions are published as an FYI for CM M3 / CM WebClient development. These are guidelines only, for alternative supported versions please consult the respective product documentation. These recommendations are current as of 1/2016.
Dev Tools
CA Plex: 7.1 R2. Obtain from support.ca.com or support.cmfirstgroup.com.
JDK: 8u74 or latest stable dot release. Obtain from http://www.oracle.com/technetwork/java/javase/downloads/index.html
Eclipse/Spring: 3.7.2. Obtain from http://spring.io/tools/sts
App Servers / Web
Tomcat: 8 latest stable dot release. Obtain from http://tomcat.apache.org/download-80.cgi
Apache: 2.4.18 or latest stable dot release. Obtain from https://httpd.apache.org/download.cgi
CM WebClient: Latest Stable Release 1.8.3. Obtain from support.cmfirstgroup.com
Dojo/Sencha: Use versions shipped with CM WebClient
DevOps
CM MatchPoint: Latest Stable Release. Obtain from support.cmfirstgroup.com
SVN: Subclipse plugin for Eclipse or Tortoise Client for Windows Explorer
Automated Test: Select per requirements. CMF recommends and works with SmartBear and WorkSoft Certify
Operating Systems
Linux / Windows / OS400: Consult CA Plex documentation. Wiki for 7.1