Release log

History of the Release Notes for the Lucid Protocol specification.

Includes a summary and details of each version, showing what was done and with any impactful changes called out.

Version : 3.0

24/10/2024

Summary :

The key elements to this release are a major breaking change to the tag type referencing in data / alarm message structures, and multiple corrections / consistency checks on json element data types in the schema, allowing better automated testing of messages.

See here for Tickets

Compatibility :
  • this version introduces BREAKING CHANGES and is not compatible with the previous version
Updates / enhancements :
  • Ticket #51 : Data type enhancements. Types ( ai, bi, ao, bo, c etc. ) are now 1st class entities and not attributes of a point. For example :
    • from : {“p”: [{“n”: “ai:1”,”v”: [10],”q”: [192],”ts”: [1728886224273]},
    • to : {“p”: [{“ai”: 1,”v”: [10],”q”: [192],”ts”: [1728886224273]},
  • Ticket #45 : New ‘WhenUnableToRead‘ action on a point
  • Ticket #44 : all times are now consistently in milliseconds from Epoch
  • Various minor protocol document enhancements
Bug Fixes :
  • Ticket #35 / #18 : corrections on data types for various message fields
  • Various minor protocol document corrections
Deprecations and Removals :

 

Version : 2.0

17/05/2024

Summary :

This release consisted of a large number of detail changes, developed as a result of the various plugfests and one-to-one vendor tests using version 1.0, and moved the protocol from its original ‘prototyping / proof of concept’ release 1.0, to a more robust, proven implementation.

See here for Tickets

Compatibility:
  • this version introduces BREAKING CHANGES and is not compatible with the previous version
Updates:
  • various updates after multiple plugfests / workshops
Bug Fixes:
Deprecations and Removals:

 

Version : 1.0

08/10/2018

Initial release for prototyping, proof of concepts etc.


 

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Lucid is a free, open source protocol that bridges a gap between Operational Technology (OT) and IoT technology.

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