honcho/CHANGELOG.md

Change Log

All notable changes to this project will be documented in this file.

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

[2.0.0]

Added

• Ability to get a peer's working representation
• Metadata to all data primitives (Workspaces, Peers, Sessions, Messages)
• Internal metadata to store Honcho's state no longer exposed in API
• Batch message operations and enhanced message querying with token and message count limits
• Search and summary functionalities scoped by workspace, peer, and session
• Ability to search message histories using semantic search with cosine similarity
• Session context retrieval with summaries and token allocation
• HNSW Index for Documents Table
• Centralized Configuration via Environment Variables or config.toml file

Changed

• API route is now /v2/
• New architecture centered around the concept of a "peer" replaces the former "app"/"user"/"session" paradigm
• Workspaces replace "apps" as top-level namespace
• Peers replace "users"
• Sessions no longer nested beneath peers and no longer limited to a single user-assistant model. A session exists independently of any one peer and peers can be added to and removed from sessions.
• Dialectic API is now part of the Peer, not the Session
• Dialectic API now allows queries to be scoped to a session or "targeted" to a fellow peer
• Database schema migrated to adopt workspace/peer/session naming and structure
• Authentication and JWT scopes updated to workspace/peer/session hierarchy
• Queue processing now works on 'work units' instead of sessions
• Message token counting updated with tiktoken integration and fallback heuristic
• Queue and message processing updated to handle sender/target and task types for multi-peer scenarios
• Resource filtering expanded to include logical operators

Fixed

• Improved error handling and validation for batch message operations and metadata
• Database Sessions to be more atomic to reduce idle in transaction time

Removed

• Metamessages removed in favor of metadata
• Collections and Documents no longer exposed in the API, solely internal
• Obsolete tests for apps, users, collections, documents, and metamessages

[1.1.0]

Added

• Normalize resources to remove joins and increase query performance
• Query tracing for debugging

Changed

• /list endpoints to not require a request body
• metamessage_type to label with backwards compatability
• Database Provisioning to rely on alembic
• Database Session Manager to explicitly rollback transactions before closing the connection

Fixed

• Alembic Migrations to include initial database migrations
• Sentry Middleware to not report Honcho Exceptions

[1.0.0]

Added

• JWT based API authentication
• Configurable logging
• Consolidated LLM Inference via ModelClient class
• Dynamic logging configurable via environment variables

Changed

• Deriver & Dialectic API to use Hybrid Memory Architecture
• Metamessages are not strictly tied to a message
• Database provisioning is a separate script instead of happening on startup
• Consolidated session/chat and session/chat/stream endpoints

[0.0.16]

Added

• Detailed custom exceptions for better error handling
• CLAUDE.md for claude code

Changed

• Deriver to use a new cognitive architecture that only updates on user messages and updates user representation to apply more confidence scores to its known facts
• Dialectic API token cutoff from 150 tokens to 300
• Dialectic API uses Claude 3.7 Sonnet
• SQLAlchemy echo changed to false by default, can be enabled with SQL_DEBUG environment flag

Fixed

• Self-hosting documentation and README to mention uv instead of poetry

[0.0.15]

Added

• Alembic for handling database migrations
• Additional indexes for reading Messages and Metamessages
• Langfuse for prompt tracing

Changed

• API validation using Pydantic

Fixed

• Dialectic Streaming Endpoint properly sends text in StreamingResponse
• Deriver Queue handles graceful shutdown

[0.0.14] — 2024-11-14

Changed

• Query Documents endpoint is a POST request for better DX
• String columns are now TEXT columns to match postgres best practices
• Docstrings to have better stainless generations

Fixed

• Dialectic API to use most recent user representation
• Prepared Statements Transient Error with psycopg
• Queue parallel worker scheduling

[0.0.13] — 2024-11-07

Added

• Ability to clone session for a user to achieve more loom-like behavior

[0.0.12] — 2024-10-21

Added

• GitHub Actions Testing
• Ability to disable derivations on a session using the deriver_disabled flag in a session's metadata
• /v1/ prefix to all routes
• Environment variable to control deriver workers

Changed

• public_ids to use NanoID and internal ID to use BigInt
• Dialectic Endpoint can take a list of queries
• Using uv for project management
• User Representations stored in a metamessage rather than using reserved collection
• Base model for Dialectic API and Deriver is now Claude 3.5 Sonnet
• Paginated GET requests now POST requests for better developer UX

Removed

• Mirascope Dependency
• Slowapi Dependency
• Opentelemetry Dependencies and Setup

[0.0.11] — 2024-08-01

Added

• session_id column to QueueItem Table
• ActiveQueueSession Table to track, which sessions are being actively processed
• Queue can process multiple sessions at once

Changed

• Sessions do not require a location_id
• Detailed printing using rich

[0.0.10] — 2024-07-23

Added

• Test cases for Storage API
• Sentry tracing and profiling
• Additional Error handling

Changed

• Document API uses same embedding endpoint as deriver
• CRUD operations use one less database call by removing extra refresh
• Use database for timestampz rather than API
• Pydantic schemas to use modern syntax

Fixed

• Deriver queue resolution

[0.0.9] — 2024-05-16

Added

• Deriver to docker compose
• Postgres based Queue for background jobs

Changed

• Deriver to use a queue instead of supabase realtime
• Using mirascope instead of langchain

Removed

• Legacy SDKs in preference for stainless SDKs

[0.0.8] — 2024-05-09

Added

• Documentation to OpenAPI
• Bearer token auth to OpenAPI routes
• Get by ID routes for users and collections
• NodeJS SDK support

Changed

• Authentication Middleware now implemented using built-in FastAPI Security module
• Get by name routes for users and collections now include "name" in slug
• Python SDK moved to separate respository

Fixed

• Error reporting for methods with integrity errors due to unique key constraints

[0.0.7] — 2024-04-01

Added

• Authentication Middleware Interface

[0.0.6] — 2024-03-21

Added

• Full docker-compose for API and Database

Fixed

• API Response schema removed unnecessary fields
• OTEL logging to properly work with async database engine
• fly.toml default settings for deriver set auto_stop=false

Changed

• Refactored API server into multiple route files

[0.0.5] — 2024-03-14

Added

• Metadata to all data primitives (Users, Sessions, Messages, etc.)
• Ability to filter paginated GET requests by JSON filter based on metadata
• Optional Sentry error monitoring
• Optional Opentelemetry logging
• Dialectic API to interact with honcho agent and get insights about users
• Automatic Fact Derivation Script for automatically generating simple memory

Changed

• API Server now uses async methods to make use of benefits of FastAPI

[0.0.4] — 2024-02-22

Added

• apps table with a relationship to the users table
• users table with a relationship to the collections and sessions tables
• Reverse Pagination support to get recent messages, sessions, etc. more easily
• Linting Rules

Changed

• Get sessions method returns all sessions including inactive
• using timestampz instead of timestamp

[0.0.3] — 2024-02-15

Added

• Collections table to reference a collection of embedding documents
• Documents table to hold vector embeddings for RAG workflows
• Local scripts for running a postgres database with pgvector installed
• OpenAI Dependency for embedding models
• PGvector dependency for vector db support

Changed

• session_data is now metadata
• session_data is a JSON field used python dict for compatability

[0.0.2] — 2024-02-01

Added

• Pagination for requests via fastapi_pagination
• Metamessages
• get_message routes
• created_at field added to each Table
• Message size limits

Changed

• IDs are now UUIDs
• default rate limit now 100 requests per minute

Removed

• Removed messages from session response model

[0.0.1] — 2024-02-01

Added

• Rate limiting of 10 requests for minute
• Application level scoping