[Bug]: Windows installer keeps installation files

[mr-manuel]

⚠️ Before submitting, please verify the following: ⚠️

• This is a bug, not a question or a configuration issue.
• This issue is not already reported on Github (I've searched it).
• Nextcloud Server and Desktop Client are up to date. See Server Maintenance and Release Schedule and Desktop Releases for supported versions.
• I agree to follow Nextcloud's Code of Conduct

Bug description

After a Windows client update a config backup is made and when auto updating, the installer is saved to %APPDATA%%\Nextcloud, but old versions are never deleted. After a while this could take multiple GB of disk space.

Steps to reproduce

1. Auto update Nextcloud for a few versions

Expected behavior

Only the latest or the latest three installers and configuration backups should be preserved.

Which files are affected by this bug

Installation files

Operating system

Windows

Which version of the operating system you are running.

Windows 11 24H4

Package

Official Windows MSI

Nextcloud Server version

28.0.4

Nextcloud Desktop Client version

3.15.2

Is this bug present after an update or on a fresh install?

Updated from a minor version (ex. 3.4.2 to 3.4.4)

Are you using the Nextcloud Server Encryption module?

Encryption is Disabled

Are you using an external user-backend?

• Default internal user-backend
• LDAP/ Active Directory
• SSO - SAML
• Other

Nextcloud Server logs

Additional info

No response

[karlisi]

At least 2 installers should be kept. It helps if new versions are buggy and rollback is needed