This blog is built on an unreleased CMS called Drupal 8.
Drupal 8 even now is a joy to choose. Without downloading any additional modules I get a decent editting experience thanks to a wysiwyg editor. Since views is in core preparing the blog for Drupal Planet is a cinch. Creating a listing with all by posts tagged with Drupal and a feed has never been simpler!
Oh and did I mention that this site looks good on mobiles (aka responsive) out-of-the-box!
Building with unreleased software means I've found bugs.
I was unable to change the title of the frontpage view due. As a result of a quick IRC conversation in #drupal-vdc dawehner was able to quickly discern what the issue was and http://drupal.org/node/1956912 was raised. Relately I was really confused by the views user interface with respect to title setting and rasied http://drupal.org/node/1957214 as a result.
When I added the welcome block to the front page featured region this same region was disaply on all other pages even though the block was configured to only appear there. After searching the issue queue using xdebug and PHPStorm I was able to track down and fix the bug - see http://drupal.org/node/1957104.
Contibuted modules need upgrading
Obviously a lot of contributed modules are not upgraded yet. There are serveral notable examples that buck this trend (devel and admin_menu) but I wanted to use the codefilter so with a little bit of work I ported it to Drupal 8 - although this will be much more interesting once filters are plugins. Porting modules is a fantastic way to learn Drupal 8's new APIs and differences.