title: Is gcc 4.9.x stable version?
body: <p><em>Hu, I was surprised at read-only mode...</em></p>
  <p>Anyway, I know many program uses <a href="http://en.wikipedia.org/wiki/Software_versioning#Odd-numbered_versions_for_development_releases" rel="nofollow noreferrer">even-odd version numbering</a>, like linux kernel 2.x.</p>
  <blockquote>
  <p>[major version].[major revision].[minor revision]</p>
  <p>If major revision is odd, it's unstable version.</p>
  </blockquote>
  <p>But in <a href="http://en.wikipedia.org/wiki/gcc" rel="nofollow noreferrer">wikipedia page</a>, it says that gcc 4.9.0 is stable version.</p>
  <p>Does <em>NOT</em> gcc uses that version numbering? But I've heard that gcc 4.7 has many bugs, so I can't make sure..</p>