Steve Dower added the comment:
Eryk is correct, the displayed version number is the one that determines
whether to update existing files or not, and the fourth field is (IIUC) not
used for this by WiX (our installer technology). We also cannot override the
displayed version using this
Eryk Sun added the comment:
FYI, the 3rd field is Field3Value, defined in "PCbuild/python.props" as the
value `MicroVersionNumber*1000 + ReleaseLevelNumber*10 + ReleaseSerial`. It
gets set as the FIELD3 macro in "PCbuild/pyproject.props", which gets used in
the definition of the PYVERSION64
Changes by Steve Dower :
--
title: Windows Installer Product Version 3.6.2150.0 Offset By 0.0.150.0 ->
Windows Installer Product does not include micro version in display name
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