For the past several years, Joomla has been using the 1.5 version, which is more stable than it has ever been and is used by millions. With the release of Joomla 1.6 early in 2011, then the subsequent release of Joomla 1.7 in July of 2011, leading to the discontinuation of Joomla 1.6, many Joomla developers and users are left wondering what to do. More confusion comes when you consider the release of Joomla 1.8 is scheduled for early 2012, and Joomla 1.7 support will be discontinued at that time.
What this means for the average Joomla user remains to be seen, but the bottom line is that Joomla 1.5 will be supported until at least the middle of 2012 so there is no reason not to continue using it. All of the extensions, components and templates for 1.5 are well established and more stable than ever. We feel upgrading to one of these new versions should be held off until they become stable, or Joomla can decide on a stable version that won't require massive upgrades every few months.
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