Changelog
All notable changes to FusionPact will be documented in this file.
[2.0.0] - 2026-03-06
🚀 Major Release — The Agent-Native Retrieval Engine
This release transforms FusionPact from a vector database into a full hybrid retrieval engine combining vector search, reasoning-based tree retrieval, and agent memory.
Added
- TreeIndex — Hierarchical document indexing with LLM-powered reasoning-based retrieval. Inspired by the insight that similarity ≠ relevance. Supports Markdown, HTML, and plain text.
- HybridRetriever — Multi-strategy retrieval combining vector (HNSW), tree reasoning, and keyword (BM25) search with Reciprocal Rank Fusion.
- Adaptive Retrieval — System learns which strategy works best for different query patterns.
- Multi-Agent Orchestration —
AgentOrchestratorfor coordinating multiple AI agents with message routing, capability-based task delegation, and collaborative retrieval. - Shared Memory — Cross-agent knowledge sharing pool with access control.
- Conversation Memory — Thread-aware chat history management per agent.
- LLM Provider — Unified interface for Ollama, OpenAI, and Anthropic for tree reasoning.
- HTTP API Server — RESTful API alongside MCP server.
- Comprehensive Documentation — Full API reference, architecture docs, integration guides.
- ATTRIBUTION.md — Clear attribution guidelines for users.
Changed
- Repositioned from "Agent-Native Vector Database" to "Agent-Native Retrieval Engine"
- Enhanced MCP server with hybrid retrieval and orchestration tools
- Improved RAG pipeline with hybrid retrieval support
- Better CLI with demo, serve, mcp, and bench commands
Architecture
FusionPact 2.0 Architecture:
├── Core: FusionEngine + HNSWIndex
├── Index: TreeIndex (reasoning-based)
├── Retrieval: HybridRetriever (vector + tree + keyword fusion)
├── Memory: AgentMemory (episodic + semantic + procedural + shared)
├── Orchestration: AgentOrchestrator (multi-agent)
├── RAG: RAGPipeline (one-click ingestion)
├── MCP: MCPServer (stdio + HTTP)
└── Embedders: Ollama, OpenAI, Mock
[1.0.0] - 2025-01-15
Initial Release
- HNSW vector indexing
- Agent Memory (episodic, semantic, procedural)
- MCP server
- RAG pipeline
- Multi-tenancy
- Ollama + OpenAI embedders
Built by [FusionPact Technologies Inc.](https://fusionpact.com)# Changelog
All notable changes to FusionPact will be documented in this file.
[2.0.0] - 2026-03-06
🚀 Major Release — The Agent-Native Retrieval Engine
This release transforms FusionPact from a vector database into a full hybrid retrieval engine combining vector search, reasoning-based tree retrieval, and agent memory.
Added
- TreeIndex — Hierarchical document indexing with LLM-powered reasoning-based retrieval. Inspired by the insight that similarity ≠ relevance. Supports Markdown, HTML, and plain text.
- HybridRetriever — Multi-strategy retrieval combining vector (HNSW), tree reasoning, and keyword (BM25) search with Reciprocal Rank Fusion.
- Adaptive Retrieval — System learns which strategy works best for different query patterns.
- Multi-Agent Orchestration —
AgentOrchestratorfor coordinating multiple AI agents with message routing, capability-based task delegation, and collaborative retrieval. - Shared Memory — Cross-agent knowledge sharing pool with access control.
- Conversation Memory — Thread-aware chat history management per agent.
- LLM Provider — Unified interface for Ollama, OpenAI, and Anthropic for tree reasoning.
- HTTP API Server — RESTful API alongside MCP server.
- Comprehensive Documentation — Full API reference, architecture docs, integration guides.
- ATTRIBUTION.md — Clear attribution guidelines for users.
Changed
- Repositioned from "Agent-Native Vector Database" to "Agent-Native Retrieval Engine"
- Enhanced MCP server with hybrid retrieval and orchestration tools
- Improved RAG pipeline with hybrid retrieval support
- Better CLI with demo, serve, mcp, and bench commands
Architecture
FusionPact 2.0 Architecture:
├── Core: FusionEngine + HNSWIndex
├── Index: TreeIndex (reasoning-based)
├── Retrieval: HybridRetriever (vector + tree + keyword fusion)
├── Memory: AgentMemory (episodic + semantic + procedural + shared)
├── Orchestration: AgentOrchestrator (multi-agent)
├── RAG: RAGPipeline (one-click ingestion)
├── MCP: MCPServer (stdio + HTTP)
└── Embedders: Ollama, OpenAI, Mock
[1.0.0] - 2025-01-15
Initial Release
- HNSW vector indexing
- Agent Memory (episodic, semantic, procedural)
- MCP server
- RAG pipeline
- Multi-tenancy
- Ollama + OpenAI embedders
Built by [FusionPact Technologies Inc.](https://fusionpact.com)