[ucha]

If your machine is 6 months old, you have a 2018 MBP keyboard. The 2019 keyboard came out 4 months ago.

[nbevans]

That is true. I did not realise this, so thanks. Indeed it says mine is a 2018 model in the "About this Mac" screen.

All this time I thought I had a 2019 model because I ordered it in 2019 and it came direct from the factory in China (not from existing stock).