Describe the bug a clear and concise description of what the bug is.

[Disclaimer: I may have filed this under the wrong repo initially: https://github.com/prometheus-operator/kube-prometheus/issues/2719]

This should be incredibly easy, but it's not.

I have an existing chart, call it my-chart. I update my-chart with the following command:

helm upgrade --install \
    --create-namespace -n some-namespace \
    --reuse-values \
    my-chart /path/to/my/chart

I want to add kube-prometheus-stack as a dep of my-chart. So I add the following to my Chart.yaml:

- name: kube-prometheus-stack
  version: 76.5.1
  repository: https://prometheus-community.github.io/helm-charts
  condition: kube-prometheus-stack.enabled

And the following to my values.yaml:

kube-prometheus-stack:
  enabled: true

I then run my helm dep update and my script, and get a sea of various no matches for kind "ServiceMonitor" in version "monitoring.coreos.com/v1" type errors.

I tried all the following values additions, with no luck:

kube-prometheus-stack:
  enabled: true
  crds:
    enabled: true
    upgradeJob:
      enabled: true

I understand kube is dumb about CRDs but I feel like all the CRD subchart and upgrade hook stuff made it dumber here. How do I install this without babysitting some outdated CRD definitions myself just to kick it on?

Helm is v3.18.4:

$ helm version
version.BuildInfo{Version:"v3.18.4", GitCommit:"v3.18.4", GitTreeState:"", GoVersion:"go1.24.5"}

This should live somewhere in the docs. There's a brief mention of CRD common issues in a very old version of the chart, but the latest docs make no mention of it:
https://artifacthub.io/packages/helm/prometheus-community/kube-prometheus-stack/10.0.1
https://artifacthub.io/packages/helm/prometheus-community/kube-prometheus-stack

What's your helm version?

version.BuildInfo{Version:"v3.18.4", GitCommit:"v3.18.4", GitTreeState:"", GoVersion:"go1.24.5"}

What's your kubectl version?

Client Version: v1.33.3 Kustomize Version: v5.6.0 Server Version: v1.33.2-gke.1240000

Which chart?

kube-prometheus-stack

What's the chart version?

76.5.1

What happened?

I get a sea of various no matches for kind "ServiceMonitor" in version "monitoring.coreos.com/v1" type errors on first upgrade with kube-prometheus-stack as a dep.

What you expected to happen?

I get a shiny new prom stack.

How to reproduce it?

I have an existing release in kube. I add the following to my Chart.yaml:

- name: kube-prometheus-stack
  version: 76.5.1
  repository: https://prometheus-community.github.io/helm-charts
  condition: kube-prometheus-stack.enabled

And the following to my values.yaml:

kube-prometheus-stack:
  enabled: true

I then run my helm dep update and my upgrade.

Enter the changed values of values.yaml?

NONE

Enter the command that you execute and failing/misfunctioning.

helm upgrade --install
--create-namespace -n some-namespace
--reuse-values
my-chart /path/to/my/chart

Anything else we need to know?

No response