Versioning

tosca_definitions_version is a top level property of the blueprint which is used to specify the DSL version used.

The currently defined versions are

Conductor Manager Version	DSL 1.3	DSL 1.4
5.1 and higher	supported/valid	supported/valid
6.4 and higher		supported/valid

Example

tosca_definitions_version: cloudify_dsl_1_4

node_templates:
    ...

The version declaration must be included in the main blueprint file.