The "32 bit era" will not be "ending" for me.
I plan to "extend it" until at least 2025, 2026, 2027 or so.
How I'll accomplish this:
- I plan to buy either a 2017 iMac, 2018 Mini, or perhaps a 2019 iMac IF the latter will still run 10.14 Mojave (which is still 32-bit compatible).
These will be the last Macs that will be capable of running 32-bit software, as all later Macs will come with OS 10.15 which will NOT run 32 bits.
- Once I have it, the "new" Mac will NEVER be upgraded beyond the final version of Mojave (at least on its internal drive). Thus, all my 32-bit apps will still run.
- I will also maintain an EXTERNAL SSD boot drive that does "keep up" with more current OS releases, so I'll be able to "switch boot" back-and-forth as needed.
- I don't have any concerns about "keeping software up-to-date" or security issues. I just don't worry about these things, and they have never proved a problem to me in 32 years of Mac'ing. Others may care... I do not.
Thus... 32-bits, onward...!