For any website administrator, having a content version history is an important asset. For Joomla, until recently, you had to find and install a third party add-on. But not anymore, finally content versioning is part of Joomla since Joomla 3.2.

Today I had a big surprise, several of my sites went out of business with the "Error: 500 - String could not be parsed as XML" message. I checked everything, and found no clues what can be happened. the sites weren't hacked, files or database has no signs to being tampered width or being damaged.

And usual bug-hunting tactics as unpublishing modules for example revealed also nothing.

While working on a new site I discovered, that reCaptcha - which used to be a rock solid part of the CMS since Joomla 1.7 - stopped working. Spent couple of hours googling around and checking and double-checking settings, just to discover, that Google, in his infinite wisdom, has changed things again without notice. The problem affects all Joomla versions from 1.7.1 to 3.2.0.

I was sure that ths is an error wich newer come back to me - was a relatively common one in early 2010-s, since dissappeared from my radar. Today one of my former students approached me with his problem. He took over a site running the latest Joomla, and when tried to change the blog list views to category blog views, as the siteowner requested, the respective pages ended up with a white PHP fatal error death screen.