Why are Linux Distros Ending 32-Bit Versions?

We asked this question Why are Linux Distros Ending 32-Bit Versions? on Quora. We got most of them good answers. Here are some picks.

Answer by: Yowan Rajcoomar,
32-bit only Intel/AMD are increasingly rare and the last non 64-bit CPUs over a decade old (excluding aome obscure Intel Atoms).

Maintaining official 32-bit ports is not only time consuming because packages and kernels have to be tested but also costly in terms of manpower. For that reason, some distros have officially phased out 32-bit (aka i686) support while focusing development on modern hardware.

Answer by: Norman Jobling

Because 32-bit hardware is becoming a rarity.It has gradually become a diminishing return to support Linux for very old computers, there's only so many maintainers to go around.

Answer by: Leslie Satenstein 
For many years, new computer chips are designed for 64bit integers with 56bit addressing. Some computer programs are need a larger than the amount of memory that a 32bit computer can address. It is also expensive in manpower to support 32bit systems when the new computers and peripherals are engineered for 64bit architectures.
If it takes one month to implement a new system on a 64bit system, it may take longer time and more costs, as, with 32bit systems, some functionality within the program may not be possible to provide.

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