Blender MSI installers refuse to install older versions when newer exists #68279

New Issue

Nathan Letwory · 2019-08-06T00:03:26+02:00

Nathan Letwory commented

2019-08-06 00:03:26 +02:00

System Information
Operating system: Windows

Blender Version
Broken: 2.79, 2.80

Short description of error
Installing 2.79 from installer after installing 2.80 from installer is not possible

Exact steps for others to reproduce the error

install 2.80 from installer
try installing 2.79 from installer

**System Information** Operating system: Windows **Blender Version** Broken: 2.79, 2.80 **Short description of error** Installing 2.79 from installer after installing 2.80 from installer is not possible **Exact steps for others to reproduce the error** - install 2.80 from installer - try installing 2.79 from installer

Nathan Letwory commented

2019-08-06 00:03:26 +02:00

Added subscriber: @jesterking

Ray molenkamp was assigned by Nathan Letwory

2019-08-06 00:03:42 +02:00

Ray molenkamp commented

2019-08-06 00:07:53 +02:00

That's how it always has worked, I'm not saying i agree with it, but that how it has worked for all the installers we have done for the 2.7x series.

If we want to change that behavior, fine with me, but that's more of a design or todo item than a bug though.

That's how it always has worked, I'm not saying i agree with it, but that how it has worked for all the installers we have done for the 2.7x series. If we want to change that behavior, fine with me, but that's more of a design or todo item than a bug though.

Ray molenkamp commented

2019-08-06 00:16:16 +02:00

Couple of things, i can't go back in time, there is no re-issuing the installers for 2.7x or 2.80.

for the future:

I'd like 2.80 and 2.81 to install side by side, but 2.81a/b/c should upgrade older 2.81 in place

Couple of things, i can't go back in time, there is no re-issuing the installers for 2.7x or 2.80. for the future: I'd like 2.80 and 2.81 to install side by side, but 2.81a/b/c should upgrade older 2.81 in place

Harley Acheson commented

2019-08-06 00:18:58 +02:00

Added subscriber: @Harley

Harley Acheson commented

2019-08-06 00:18:58 +02:00

I think the installer should use a target folder with the following pattern:

C:\Program Files\Blender Foundation\Blender [ver]\

Where [ver] represents the current full version number without "RC", "a", "b", etc

So we can have multiple versions at once installed but release candidates and other smaller changes are overwritten:

C:\Program Files\Blender Foundation\Blender 2.79
C:\Program Files\Blender Foundation\Blender 2.81\

I think the installer should use a target folder with the following pattern: C:\Program Files\Blender Foundation\Blender [ver]\ Where [ver] represents the current full version number without "RC", "a", "b", etc So we can have multiple versions at once installed but release candidates and other smaller changes are overwritten: C:\Program Files\Blender Foundation\Blender 2.79\ C:\Program Files\Blender Foundation\Blender 2.81\

gbayliss commented

2019-08-15 17:43:37 +02:00

Added subscriber: @merlinstail

gbayliss commented

2019-08-15 17:43:37 +02:00

This is a valid case for switching to semver numbering instead of blender's uniquely (and I have to say confusing to the vast majority) version numbers

That way you can set the upgrade GUID on the installer to only upgrade bug fixes while retaining major or minor versions side-by-side.

This is a valid case for switching to semver numbering instead of blender's uniquely (and I have to say confusing to the vast majority) version numbers That way you can set the upgrade GUID on the installer to only upgrade bug fixes while retaining major or minor versions side-by-side.

Campbell Barton commented

2020-02-12 07:46:58 +01:00

Changed status from 'Needs Triage' to: 'Confirmed'

Ray molenkamp commented

2020-02-12 13:38:05 +01:00

Changed status from 'Confirmed' to: 'Resolved'

Ray molenkamp closed this issue

2020-02-12 13:38:05 +01:00

Ray molenkamp commented

2020-02-12 13:38:05 +01:00

Resolved since 2.81

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Blender MSI installers refuse to install older versions when newer exists #68279