There is a code syntax highlighting problem which had been fixed a long time ago, but for the last couple of weeks appears again. Usually it would automatically detect that the code sample is VB.NET (because of vb.net
tag I think) and format it properly. In the last weeks I have to add the markup <!-- language-all: lang-vb -->
for my code samples to display properly.
For example, if you look at my answer from this question you can see that code is highlighted properly, because I added the markup tag to specify that the language is VB. But if you remove the hint, then it doesn't recognize VB (comments aren't displayed properly).
'' like this
.vb.net
are OK, but it seemed to me that even when mixing tags, VB.NET code was correctly detected before, but not anymore (it happens with other tags not just mysql).