I've scanned the thread looking for someone to mention "look for a red/green light from the Tower" while on final without radio, which I guess might be the same as while on final and unable to call due to congestion.
You will of course have checked the approach visually for another aircraft ahead of you, or on a long final, before turning cross-wind, and again before turning on to final approach. Won't you? Or has that changed as well?
Am I absurdly out of touch with modern ATC systems? Do VCRs still have red and green lamps hanging ready for instant use if needed?
Edit; I just reread I42's post, which - sort - of asks the same question!
Another edit; ....and there are other posts mentioning red/green lights. But what's the definitive answer? Are they still required to be available - and used - in a VCR providing a full ATC service?