I was recently baffled by the behaviour of one of my wordpress sites.
The site only loaded its header and then stopped. Further investigation showed that the site was using Suffusion 3.9.0 as a theme.
I have previously experienced many problems with various software with version x.x.0, so I suspected a bug in the theme.
A further runtime debugging showed the following error:
Parse error: syntax error, unexpected ‘<‘
After backing up the site, I manually upgraded the site to Suffusion 3.9.2 and voila … I was right. Everything was back to normal.
One last touch was updating the credit line on the footer and I was happy again 🙂