https://docs.openshift.com/container-platform/4.14/release_notes/ocp-4-14-release-notes.html#ocp-4-14-monitoring-updates-to-monitoring-stack-components-and-dependencies
OCP 4.14 used prom-label-proxy to 0.7.0
see 4.14 prom-label-proxy version from: https://github.com/openshift/prom-label-proxy/blob/release-4.14/VERSION
4.15 prom-label-proxy version is also 0.7.0, see:
https://github.com/openshift/prom-label-proxy/blob/release-4.15/VERSION
so there is no need to mention prom-label-proxy in 4.15 release note: https://docs.openshift.com/container-platform/4.15/release_notes/ocp-4-15-release-notes.html#ocp-4-15-monitoring-updates-to-monitoring-stack-components-and-dependencies this is right

but for

https://docs.openshift.com/container-platform/4.16/release_notes/ocp-4-16-release-notes.html#ocp-4-16-monitoring-updates-to-monitoring-stack-components-and-dependencies
missed prom-label-proxy 0.8.1
see 4.16 prom-label-proxy version from: https://github.com/openshift/prom-label-proxy/blob/release-4.16/VERSION

https://docs.openshift.com/container-platform/4.17/release_notes/ocp-4-17-release-notes.html#ocp-4-17-monitoring-updates-to-monitoring-stack-components-and-dependencies
missed prom-label-proxy 0.11.0
see 4.17 prom-label-proxy version from: https://github.com/openshift/prom-label-proxy/blob/release-4.17/VERSION