Changes to Update an application announcement

added the pattern ^[0-9a-f]{8}-[0-9a-f]{4}-[1-8][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$ to the path request parameter id

the request property subtitle became required

the request property title became required

added the new payload_too_large enum value to the code response property for the response status 400

added the new payload_too_large enum value to the code response property for the response status 401

added the new payload_too_large enum value to the code response property for the response status 404

added the new unprocessable_entity enum value to the code response property for the response status 400

added the new unprocessable_entity enum value to the code response property for the response status 401

added the new unprocessable_entity enum value to the code response property for the response status 404

api operation id updateAppAnnouncement was added

the endpoint scheme security BotToken was added to the API

the endpoint scheme security ApiKeyAuth was removed from the API

request property ends_at list-of-types was widened by adding types null to media type application/json

added the non-success response with the status 409

added the non-success response with the status 413

added the non-success response with the status 415

added the non-success response with the status 503

the response property code became required for the status 400

the response property code became required for the status 401

the response property code became required for the status 404

the response property created_at became required for the status 200

the response property details/items/field became required for the status 400

the response property details/items/field became required for the status 401

the response property details/items/field became required for the status 404

the response property details/items/message became required for the status 400

the response property details/items/message became required for the status 401

the response property details/items/message became required for the status 404

the response property id became required for the status 200

the response property message became required for the status 400

the response property message became required for the status 401

the response property message became required for the status 404

the response property starts_at became required for the status 200

the response property status became required for the status 200

the response property subtitle became required for the status 200

the response property target became required for the status 200

the response property title became required for the status 200

the response property updated_at became required for the status 200