I received an email for the Creative Cloud Photography bonus saying it is good for 12 months (Thank you!!). My email doesn't actually have a code, it has a "redeem now" button. I assume this is normal?
 (I won't click on the button yet, because I don't need to use the code yet...already subscribed this year).

When you click on Redeem Now, it takes you to the redemption page redeem.adobe.com and auto-populates your code. If you have the exact same Creative Cloud Photography subscription as you received via the bonus, you can redeem the code now, it will push out your next billing by 12 months. Also if you received a Photography plan bonus code for 2018 which is still active and you got another one in 2019, you can also redeem it now, these are stackable.
But if you have a different plan, such as a Creative Cloud All Apps plan and you redeem the Photography plan - both plans would run in parallel, which doesn't make sense. In this case it's better to wait with the redemption until your paid plan ends or comes up for renewal. More info in the FAQ: https://helpx.adobe.com/stock/contributor/help/creative-cloud-bonus-FAQ.html [nofollow]

Once again - thank you Adobe and Matt.

I've just redeemed this year's code (last year's can wait till this one expires)
Everything worked brilliantly. I had been using CS6 and on opening PP2020 it warned me that the graphics driver was not up to the job. Luckily I was able to get a new driver (from Nvidia) that PP2020 is happy with.

I used the Adobe installer - and had a choice of which software and which version I wanted. As I have PP CS6, LR6 and PS5.5 I can keep them on the same computer side by side so can always go back to them in the future if the subscription gets too high or to use old projects as things are not backward compatible.

I might even dabble with Audition and AE

I had the same issue.  Mat checked and said I was good, but I still haven�t received the code and the one from last year expires soon.