C.A.N. System Changelog

All notable changes to the Curtiss Annotation Nomenclature (CAN) Guide will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Versioning Policy

The Official Guide to The CAN System of Codes and Emphasizers uses Semantic Versioning. Version changes (generally) follow this framework:

• Major version increase – Any CAN Code or CAN Emphasizer value changes
• Minor version increase – Any explanation is added, edited, or removed, or contact information is updated
• Patch version increase – Spelling or grammar changes

Changes are reviewed as feedback is submitted and updates to the Guide are grouped together to minimize the number of new versions.

Version History

Click on any version number to view that version’s PDF.

1.1.0 - 2025-12-22

Changed

• Updated the Contact information

Added

• Added to the Usage Guide, a brief explanation of the number’s position and meaning in the standard CAN System annotation

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1.0.0 - 2025-12-18

Added

• Initial release of the Curtiss Annotation Nomenclature Guide
• PDF documentation (CAN_Guide.pdf)
• SHA-256 hash verification for document integrity
• README with download and verification instructions