Update CHANGELOG.md in place per beta policy and add a compat note on the `sub_agent.actions` field flagging it as drop-on-cleanup once clients <= 0.1.65-beta.3 are out of the field.
Update CHANGELOG.md in place per beta policy and add a compat note on the `sub_agent.actions` field flagging it as drop-on-cleanup once clients <= 0.1.65-beta.3 are out of the field.