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# HyperCortex Mesh Protocol — Changelog

## HMP-0005 (February 2026) — Core Specification v5.0.5

**MCE Recommended Extensions:**
* Introduced optional On-Demand `container_index` retrieval via empty `container_request.payload` (Section 12.9.1).
* Introduced declarative `request_container_selection` filter hints (Section 12.9.2).
* Added optional `selection_status` signaling (`"processed"` / `"declined"`) in `container_response` (Section 12.9.3).
* Clarified union semantics between explicitly requested containers and declarative selection results.
* Explicitly defined non-RPC, policy-driven execution model for selection processing.

No changes to core container structure or mandatory message semantics.  
Fully backward-compatible within the 5.0.x series.

---

## HMP-0005 (February 2026) — Core Specification v5.0.4

**Naming Normalization:**
* Renamed container class `resonance-map` to `resonance_map` to maintain consistent container naming conventions.
* Deprecated the former identifier.

No semantic changes. Fully backward-compatible within the 5.0.x series.

---

## HMP-0005 (February 2026) — Core Specification v5.0.3

**Security & Confidentiality Extensions:**
* Introduced `container_key` container for Shared Key Domains (Section 12.7).
* Introduced `group_definition` container (subclass: `private`) for Private Groups (Section 12.8).
* Clarified shared symmetric key reuse and rotation semantics.
* Explicitly defined key compromise handling model.

No breaking changes. Fully backward-compatible within the 5.0.x series.

---

## HMP-0005 (February 2026) — Core Specification v5.0.2

**Security & Cryptography:**
* Introduced optional `key-disclosure` container for controlled symmetric key sharing.
* Enabled delayed and conditional decryption workflows (e.g., post-consensus, escrow, staged disclosure).

No breaking changes. Fully backward-compatible within the 5.0.x series.

---

## HMP-0005 (October 2025) — Core Specification v5.0

**Architecture:**
* Formalized immutable container model with explicit proof chains.
* Unified cognitive, container, and network layers into a single protocol stack.
* Introduced canonical container header and semantic `related.*` references.

**Security & Verification:**
* Standardized canonical JSON, hashing, and Ed25519 signatures.
* Defined encrypted + compressed container format.
* Enabled verification without payload decryption.

**Consensus & Reasoning:**
* Introduced formal `vote` and `consensus_result` containers.
* Enabled forked and parallel consensus results.
* Defined reproducible aggregation via explicit dependency references.

**Networking:**
* Integrated DHT-based discovery as a first-class layer.
* Defined TTL, propagation scope, and routing semantics.

**Extensibility:**
* Added Future Extensions framework (groups, reputation, streaming, bridges).
* Defined protocol evolution rules for the 5.x series.

This version supersedes all RFC-based HMP 4.x specifications.

---

## HMP-0004 (July 2025) — RFC Version 4.1

**Protocols:**
* **Added `5.8 Message Routing & Delivery` section** — including direct, broadcast, relay, and topic messaging modes.

**Data Models:**
* **Defined `6.5.8 Message Object Schema`** — standard JSON format for inter-agent communication.

**Cognitive Workflows:**
* **Added `7.9 Message Handling & Delivery Workflows`** — describing message processing, relay behavior, and routing.

## HMP-0004 (July 2025) — RFC Version 4.0

**Major Changes**
* Introduced new sections: *Cognitive Workflows*, *Agent Roles*, *Governance*, *Compression*, and *Simulation*.
* Added experimental APIs: *Consent Request*, *Explainability*, *Voice Interface*.
* Expanded *Quick Start Guide* and updated *Example Use Cases* with new flows and APIs.
* Integrated BitTorrent/IPFS snapshot syncing, pseudonymous voting, and ethical filters.

**Protocol and Architecture Updates**
* Enhanced *CogSync* with chunked syncing, selective edge sync, and experimental Dat/IPFS support.
* Refined *MeshConsensus* with adaptive models and EGP-integrated filters.
* Extended *EGP* with principle hierarchy, local norm integration, and modular ethics ontologies.
* Improved fallback and handshake logic across all protocols.

**Data Model Improvements**
* Added new objects: `CogDiarySnapshot`, `SnapshotIndex`, `EthicalConflict`.
* Introduced *Reputation Ontology Extension* and support for multi-format schema negotiation (JSON/YAML/Protobuf).
* Unified schema structure, examples, and versioning across `6.2` and `6.5`.

**Cognitive Layer Enhancements**
* Formalized cognitive workflows for reflection, delegation, and hypothesis validation.
* Refined semantic change tracking and diary summarization processes.
* Defined agent self-assessment and meta-reflection protocols.

**Trust & Security Enhancements**
* Added *Snapshot Security*: DID-signatures, ZKP verification, and trusted seeders.
* Extended *Sybil resistance*, post-quantum key support, and anonymized voting mechanisms.
* Improved trust-based access control and event auditability.

**Interoperability & Event Integration**
* Added *Event-Driven Architecture* and format negotiation layer.
* Documented integration patterns for REST, gRPC, MQTT, and message brokers.
* Clarified cross-protocol participation (e.g. Hyperon, TreeQuest, AutoGPT).

**Testing & Simulation**
* New Appendix C with *Ethical Stress Suite*, snapshot sync simulation, and open test datasets.
* Introduced *Agent-on-Agent Dialog Simulation* for consent learning and negotiation modeling.

**Future Directions**
* Extended roadmap with *Snapshot Markets*, *Meta-Protocol Proposals*, and *Multi-Agent Training Environments*.
* Prototype tools proposed: *MeshGit*, *CogForge*, and *HyperCortex Forge* for cognitive source control and collaborative evolution.

---

## HMP-0003 (July 2025) — RFC Version 3.0

**Major Changes**
* Rewritten and expanded full RFC document structure.
* Added Quick Start Guide with demo commands and cross-protocol notes.
* Introduced a detailed Deployment Scenarios section describing Core, Edge, IoT, and Hybrid environments.
* Created the Interoperability with External Systems section (API Gateway, Event-driven integrations, Auth).
* Extended Future Roadmap with Federated Meta-Learning, Quantum Mesh, Multi-Protocol Nodes, DAO integration, and Cognitive Source Control.
* Enhanced clarity and modularity across all sections for easier reference and further evolution.

**Protocol and Architecture Updates**
* Refined protocol descriptions for CogSync, MeshConsensus, GMP, EGP, and NDP.
* Improved fallback scenarios, error handling, and adaptive consensus algorithms.
* Detailed internal/external agent interactions and cross-mesh collaboration patterns.
* Clarified Trust Layer roles in distributed governance and dynamic trust scoring.

**Data Model Improvements**
* Reworked all JSON Schemas with clear required/optional fields and examples.
* Added archival fields (archived, archived_at) to CognitiveDiaryEntry.

* Unified Relation (Link) schema and listed recommended relation types.

* Split schema examples and validation-ready JSON Schema files into /docs/schemas.



**Cognitive Layer Enhancements**

* Extended support for metacognition, semantic graph evolution, and task/goal tracking.

* Formalized Cognitive Diaries as traceable reasoning logs with explainability focus.

* Expanded discussion on cognitive workflows, agent autonomy, and ethics.



**Trust & Security Enhancements**

* Specified Post-Quantum Cryptography (PQC) considerations for future-proofing the Mesh.

* Improved Sybil resistance through layered identity verification (DID + trust scoring + optional ZKP).

* Clarified authentication and authorization bridging for external systems.



**Reference Implementation Roadmap**

* Defined Alpha, Beta, and Release 1.0 milestones with indicative dates.

* Listed planned CI/CD, Sandbox, and Public Test Mesh infrastructure.

* Outlined Open Source licensing and contribution strategy (Apache 2.0 / MIT).



**Future Directions**

* Federated Meta-Learning, Cognitive DAO Governance, Quantum Networking exploration.

* Cross-Mesh cognitive federation and collaborative evolution of reasoning engines.

* Potential prototype tools like MeshGit and CogForge for cognitive source control.



---



## HMP-0002 (July 2025) — RFC Version 2.0



**Major Changes**

* Reorganized the document structure for clarity and consistency.

* Added **Versioning** and **Use Case** definitions in the Definitions section.

* Expanded **Trust Layer** with clearer explanations of key management, social recovery, and Sybil resistance.

* Introduced the concept of **Edge Optimization** for lightweight agents.

* Enhanced descriptions in **Mesh Operation Modes**, particularly around resilience and agent autonomy.



**Protocol Updates**

* Refined **Node Discovery Protocol (NDP)** with better NAT traversal and bootstrap node handling.

* Updated **Cognitive Sync Protocol (CogSync)** to include partial sync, compression, and data prioritization.

* Improved **Mesh Consensus Protocol (MeshConsensus)** with fallback mechanisms and trust-weighted voting adjustments.

* Clarified responsibilities of the **Ethical Governance Protocol (EGP)**, including ethics versioning and dynamic adjustment.

* Added clarification on **Goal Management Protocol (GMP)** error handling and task reassignment.



**Data Model Improvements**

* Formalized JSON Schemas for all major data models (**Concept**, **CognitiveDiaryEntry**, **Goal**, **Task**, **ConsensusVote**, **ReputationProfile**).

* Improved field descriptions and added optional fields for better interoperability.

* Added versioning and metadata fields to support long-term data evolution.



**Cognitive Layer Enhancements**

* Clarified the role of semantic graphs in reasoning and memory.

* Expanded description of cognitive diaries as auditable reasoning chains.



**Trust & Security Enhancements**

* Introduced key rotation and social recovery mechanisms.

* Detailed Sybil resistance strategies combining Web-of-Trust with optional resource verification.

* Refined privacy considerations for sensitive data in semantic graphs and diaries.



**Future Work Roadmap Expanded**

* New focus areas added: interoperability testing, UX tools for semantic and cognitive layers, and resilience simulations.



---



## HMP-0001 (June 2025) — RFC Version 1.0



**Initial Draft**

* Defined the core purpose and vision of HyperCortex Mesh Protocol (HMP).

* Described key architecture layers: Cognitive Layer, Protocol Layer, and Trust Layer.

* Outlined fundamental concepts: Agents, Semantic Graph, Cognitive Diaries, and Consensus.

* Drafted the first versions of core protocols:

    * CogSync (Cognitive Sync Protocol)

    * MeshConsensus

    * Goal Management Protocol (GMP)

    * Ethical Governance Protocol (EGP)

    * Node Discovery Protocol (NDP)

* Introduced the Cognitive Diary and Semantic Graph as core agent data structures.

* Presented initial Trust Layer design, including Decentralized Identifiers (DID) and basic Sybil resistance ideas.

* Provided high-level example workflows (goal creation, task delegation, concept consensus).

* Laid out an initial Future Work list, covering scalability, cross-mesh interoperability, and quantum networking as exploratory directions.

* Established the RFC document structure and versioning approach for further evolution.