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In case you specify a version like v5 for example, it will be tried to load the command with this exact version. In case no such command with this version exists, the next lower version will be looked up, like v4 for example. If no command with this version exists, the next lower version v3 is tried, and so on until v1 is reached which is the most minimal version and must be available for any existing command.

Default version (latest)

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headers:
  version: latest
pipeline:
  - log:latest:
      message: "Hello World!"  

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