Joomla 4 is approaching its official release, and can be expected before the end of the year. I won't be updating any sites initially, as I like to let it settle in as there are often a few releases in quick succession as things get ironed out. It's a major release, and the last major release (Joomla 3) was September 2012 - so it's been a while! Joomla 4 is not compatible with your existing site, so it's not the usual quick update between versions.
