Windows 10 going 64 bit only, sort of
lazarus / 34-Windows

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trev · 2020-05-15 04:30

From Minimum hardware requirements still dated 05/02/2017:

* Beginning with Windows 10, version 2004, all new Windows 10 systems
will be required to use 64-bit builds and Microsoft will no longer
release 32-bit builds for OEM distribution. This does not impact
32-bit customer systems that are manufactured with earlier versions of
Windows 10; Microsoft remains committed to providing feature and
security updates on these devices, including continued 32-bit media
availability in non-OEM channels to support various upgrade
installation scenarios.

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nanobit · 2020-05-15 06:39

Quote from: trev on May 15, 2020, 06:30:45 amWindows 10 going 64 bit
only, sort of

But Windows support will continue "endlessly" for win32 apps which run
on Wow64.
A prominent example is MS Visual Studio 2019: It's available only as
32-bit process
and installs to Program Files (x86), regardless of install options
(even if the installer
refers to 64-bit in its name, this has effect only on subcomponents of
Visual Studio).

And current Win10 on ARM64 can run only x86-apps (via x86-emulation)
and native AArch64 apps, but not yet x64-apps (via x64-emulation).

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lucamar · 2020-05-15 10:28

Please note the really relevant part:
Quote from: trev on May 15, 2020, 06:30:45 amBeginning with Windows
10, version 2004, all new Windows 10 systems will be required to use
64-bit builds and Microsoft will no longer release 32-bit builds for
OEM distribution.It affects only hardware manufacturers and system
builders, as the rest of the quote explains.

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Thaddy · 2020-05-15 11:08

And those OEM distributors that still distribute 32 bit  are not many
if any.
I do not understand that 64 bit windows is mainstream for over 5 years
and people still ask. You should not develope new code on 32 bit intel
windows at all. Maintenance is OK of course.