Walking between two sites at lunchtime today I realised that I wasn't aware of my knees. That shouldn't be worth noting but for the last 6 months I have been aware of them to greater or lesser degrees for much of the time. Moreover I ran 12km on road on Tuesday and last night did squats, lunges and step-ups in the circuit; as well as the 5km round trip slow run.
By the time I was walking home I could feel my left patellar tendon (the current weak spot) so the issue isn't behind me but perhaps it will be soon. This is still forward progress.