Pester Update Error: 'CN=Jakub Jareš, O=Jakub Jareš, L=Praha, C=CZ'

[ElvenSpellmaker]

Checklist

• Issue has a meaningful title
• I have searched the existing issues. See all issues
• I have tested using the latest version of Pester. See Installation and update guide.

What is the issue?

I believe this (see below) has come back, I'm trying to upgrade from 5.4.0, to 5.7.1 and I'm getting the certificate error again.

#2389

Untrusted repository
You are installing the modules from an untrusted repository. If you trust this
repository, change its InstallationPolicy value by running the Set-PSRepository
cmdlet. Are you sure you want to install the modules from 'PSGallery'?
[Y] Yes  [A] Yes to All  [N] No  [L] No to All  [S] Suspend  [?] Help
(default is "N"):y
Install-Package: Authenticode issuer 'CN=Jakub Jareš, O=Jakub Jareš, L=Praha, C=CZ' of the new module
'Pester' with version '5.7.1' from root certificate authority 'CN=DigiCert Trusted
Root G4, OU=www.digicert.com, O=DigiCert Inc, C=US' is not matching with the
authenticode issuer 'CN=Jakub Jareš, O=Jakub Jareš, L=Praha, C=CZ' of the
previously-installed module 'Pester' with version '5.4.0' from root certificate
authority 'CN=DigiCert Assured ID Root CA, OU=www.digicert.com, O=DigiCert Inc,
C=US'. If you still want to install or update, use -SkipPublisherCheck parameter.

Expected Behavior

Upgrade should work

Steps To Reproduce

Install-Module pester

Describe your environment

Pester version : 5.4.0 C:\Users<user>\Documents\PowerShell\Modules\Pester\5.4.0\Pester.psm1
PowerShell version : 7.4.6
OS version : Microsoft Windows NT 10.0.22631.0

Possible Solution?

None at the moment

[nohwnd]

Hello, this is a known issue, documented here: https://github.com/pester/Pester?tab=readme-ov-file#signing-certificates

Pester is signed, and over the years the issuing authority certificate had to change to remain safe. Powershell cannot accommodate that and assumes the code author changed, which could lead to substitution attacks so it warns you.

You are updating from 5.4.0 to 5.7.0, certificate changed in 5.6.0.

Using -SkipPublisherCheck is needed to complete the update. Or uninstalling and installing.

[ElvenSpellmaker]

Thanks for the clarification!