[Hadoop Wiki] Update of "InvalidJiraIssues" by SteveLoughran

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The "InvalidJiraIssues" page has been changed by SteveLoughran:
https://wiki.apache.org/hadoop/InvalidJiraIssues?action=diff&rev1=2&rev2=3

Comment:
mention that issues with older versions of Hadoop don't stand a chance

   * [[http://wiki.apache.org/hadoop/Distributions%20and%20Commercial%20Support|Vendors of Hadoop-derived products]] provide their own mailing lists and forums. Please try there.
   * The [[http://hadoop.apache.org/general_lists.html#User|hadoop-user]] mailing list is the place at Apache where discussions on installation and configuration problems should take pace. Not JIRA, not hadoop-general. Not the -dev lists. Asking the developers for help on configuring your system is like emailing the linux-kernel mailing list for help getting /etc/fstab right.
   * There are a number of quality [[Books|Books on Hadoop]]. These are worthwhile investment.
-  * The source is all there [[http://svn.apache.org/viewvc/hadoop/common/trunk/|for you to explore]]. 
+  * The source is all there [[http://svn.apache.org/viewvc/hadoop/common/trunk/|for you to explore]].
+  
+ Finally: the development and testing goes on Hadoop 2.2+, with some maintenance of branch 1, with Hadoop 1.2.1 being the latest (as of December 2013). If you have a problem with an older version of Hadoop, upgrade -because that will be the likely first response from the user list *and absolutely the first response on any JIRA*. If you aren't prepared to upgrade, you aren't going to get any help at all.
  
  This may seem unfair for the developers not to care about your "critical" issue and close it as invalid, despite the fact they are clearly the experts in Hadoop internals. However they -we- are busy trying to build the future of Hadoop, ''the operating system for data''. Most of the people working on this are being paid to do so, either from companies whose business is built around selling supported Hadoop-based products, or from people who use in production internally. None of these people have the time to help you -because if they did help everyone with a problem, they'd never get anything done.