There hasn't been any change in the functionality of the Section Tags.
When you define a Section Tag type you choose a symbol for the Section Head and a symbol for the Section Tail.
The Section Head will always link to the view that the Section refers to. The Section Tail will not.
The reason for the blue vs black is that difference (the one in blue is a live link, the one in black is a "dumb" symbol).
You can cycle through the symbol options for each end of the Section Tag by selecting the tag near the desired end, then picking the little circular symbol that appears. It will cycle through: None, Section Tail, Section Head (the order may vary depending on the symbol definition and which end you are working on).
When the Symbol selection matches the symbol defined for the Section Head it will become a link just like the actual Section Head, when it is a link it will be blue.
-G