Unclear if label or annotations work for controlling Pod injection

[mikebryant]

For Pods:

• https://istio.io/latest/docs/setup/additional-setup/sidecar-injection/#controlling-the-injection-policy suggests the label sidecar.istio.io/inject should be used.
• https://istio.io/latest/docs/ops/common-problems/injection/ suggests it's the annotation

Do both of these work, or are the docs wrong in one of these locations?

[zirain]

see https://preliminary.istio.io/latest/docs/setup/additional-setup/sidecar-injection/#controlling-the-injection-policy