Purpose:
The Semantic Versioning Codex governs the structure, evolution, and interpretability of version-controlled systems and specifications across software, firmware, hardware, and hybrid AI architectures. It defines a universal grammar of update identity and system progression, binding numerical versioning schemes to semantically meaningful shifts.

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Core Components

• Version Triad Schema (X.Y.Z):
  • X – Major: Incompatible or structural changes to core functionality or logic.
  • Y – Minor: Feature additions that remain backward compatible.
  • Z – Patch: Bug fixes or performance improvements that do not alter logic or interface.
• Pre-release & Metadata Identifiers:
  Supports extended tags such as alpha, beta, rc, or build hashes (e.g., 1.0.0-beta.2+exp.sha.5114f85) to track experimental, staging, or production tiers.
• Delta Semantics Mapping:
  Each shift in version is semantically mapped to:
  • Behavioral Impact
  • Systemic Dependencies
  • Backward Compatibility Index (BCI)
  • Ethical/Security Trigger Flags

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Codified Functions

• Version Integrity Verification:
  Ensures that downstream components validate against versioned interfaces before execution. Tied to Dependency Management Codices and Update Protocol Layers.
• Chrono-Semantic Update Registry (CSUR):
  Logs temporal and semantic relevance of updates, forming a multidimensional ledger of code evolution tied to System Codex and Memory Codex.
• Recursive Semantic Alignment (RSA):
  Facilitates interpretability by LLMs, agents, and compilers—allowing them to “understand” the meaning of version shifts and act accordingly.

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Interconnected Codices

• Compiler Codex – for compatibility thresholds.
• Audit Codex – for traceable logs of changes.
• Signal Codex – when updates affect protocol frequencies or data frame structures.
• Ontology Codex – binds semantic tags to versioning labels.

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Applications

• API lifecycle management
• Autonomous agent firmware governance
• Modular AI architecture updates
• Compliance with real-time regulatory interfaces
• Recursive protocol negotiation in federated systems

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Codex Principle:
“A version number is not a number. It is a contract. It declares intention, embeds trust, and defines evolution.”