There is a question about getting the path to Static Resources dynamically in apex and it has some good answers. Here it is for reference.
However, I've noticed that at some point, (I'm not sure when). Using the static resource url without the timestamp in it has started working fine.
works just as well as
I haven't been able to find anything about this in the documentation or release notes. So my question is...
Is using the first method without the timestamp dangerous and unsupported? Can anyone think of drawbacks? Is caching behavior changed?