- title: "Known host required for GitLab Runner SSH executor"
  announcement_milestone: "14.5"  # The milestone when this feature was first announced as deprecated.
  removal_milestone: "15.0"  # the milestone when this feature is planned to be removed
  removal_date: "2022-05-22"
  breaking_change: true
  body: |  # Do not modify this line, instead modify the lines below.
    In [GitLab 14.3](https://gitlab.com/gitlab-org/gitlab-runner/-/merge_requests/3074), we added a configuration setting in the GitLab Runner `config.toml`. This setting, [`[runners.ssh.disable_strict_host_key_checking]`](https://docs.gitlab.com/runner/executors/ssh.html#security), controls whether or not to use strict host key checking with the SSH executor.

    In GitLab 15.0, the default value for this configuration option has changed from `true` to `false`. This means that strict host key checking will be enforced when using the GitLab Runner SSH executor.
  stage: Verify
  tiers: [Core, Premium, Ultimate]
  issue_url: https://gitlab.com/gitlab-org/gitlab-runner/-/issues/28192
  documentation_url: https://docs.gitlab.com/runner/executors/ssh.html#security
  announcement_date: "2021-11-22"