Airways/Fixes
I last flew in 1998 when I retired holding an ATPL/H IR. I have had little direct contact with aviation since.
I have just seen a modern airways chart and noted the vast difference between that and an old one from 1998. Am I right in thinking that airways and fixes are no longer necessarily defined by VOR/DME or NDB's but may be defined simply by Lat/Long?
If that is so, presumably GPS is now a primary navaid. If so, are VOR/DME/ADF used for anything other than approaches.
Thank you in advance for any information.