Bug 4111 - Unable to downgrade MFA using MonoDevelop updater
Summary: Unable to downgrade MFA using MonoDevelop updater
Alias: None
Product: Visual Studio Extensions
Classification: Xamarin
Component: Android ()
Version: unspecified
Hardware: PC Windows
: --- normal
Target Milestone: ---
Assignee: Bugzilla
Depends on:
Reported: 2012-03-27 15:24 UTC by PJ
Modified: 2016-08-03 15:23 UTC (History)
7 users (show)

Is this bug a regression?: ---
Last known good build:

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Description PJ 2012-03-27 15:24:00 UTC
Can't install over a newer MFA.

If this is the expected behavior, then the bug would be that the updater does not indicate this issue.

Expected Result:
Either the downgrade works through MD or I am warned about uninstalling before I see the error message.

Actual Result:
[Show Details]=> https://gist.github.com/2219419
Comment 1 Mikayla Hutchinson [MSFT] 2012-03-27 17:47:31 UTC
This is a bug in the MfA package, it explicitly checks to prevent downgrades.
Comment 3 Jonathan Pobst 2012-03-28 00:46:58 UTC
I think not being able to downgrade is expected behavior on Windows.
Comment 6 Jonathan Pobst 2012-03-29 11:24:37 UTC
Fixed for 4.2.
Comment 9 Jonathan Pobst 2012-05-10 11:31:17 UTC
Reopening, as this change was reverted:

When downgrading, this causes both version to exist in Add/Remove Programs, and produces a potentially broken install.
Comment 10 Duncan Mak 2012-05-10 20:53:16 UTC
Zane and I changed how MajorUpgrade works. We need to test this again.
Comment 11 PJ 2012-05-11 08:04:12 UTC
Verified fixed in MFA 4.2.0 RC5

Mandroid + MSBuild\Novell dir
4.3.0 installed on machine with no MFA: http://screencast.com/t/QPXkz1uo
4.2.0 installed over that: http://screencast.com/t/dBpKR8S2

Note: this problem will persist for downgrades from 4.2.x to 4.0.6 as the code that prevents the downgrade is in the 4.0.6 msi. 

4.2.0 will be the first stable release that can be downgraded *to*. The next release will be the first one that can be downgraded *from*.