50 lines
2.4 KiB
Markdown
50 lines
2.4 KiB
Markdown
# Changelog
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All notable changes to TradingAgents will be documented in this file.
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The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
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and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
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## [Unreleased]
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### Added
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- OpenRouter API provider support for unified access to multiple LLM models
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- Support for `provider/model-name` format (e.g., `anthropic/claude-sonnet-4.5`)
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- Proper API key handling with OPENROUTER_API_KEY environment variable
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- Custom headers for OpenRouter attribution (HTTP-Referer, X-Title)
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- Embedding fallback to OpenAI when using OpenRouter (since OpenRouter lacks embeddings)
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- Comprehensive test suite for OpenRouter provider integration [file:tests/test_openrouter.py](tests/test_openrouter.py)
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- Expanded .env.example with all supported LLM provider API keys
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- Detailed LLM Provider Options section in README.md with examples for:
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- OpenAI (default)
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- Anthropic
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- OpenRouter (new)
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- Google Generative AI
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- Ollama (local)
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- OpenRouter configuration example in Python usage section
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- Documentation updates in PROJECT.md for OpenRouter support
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### Changed
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- Updated trading_graph.py LLM provider initialization to handle OpenRouter separately with proper API key and header management [file:tradingagents/graph/trading_graph.py:75-105](tradingagents/graph/trading_graph.py)
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- Enhanced memory.py embedding logic to support OpenRouter's embedding fallback behavior [file:tradingagents/agents/utils/memory.py:6-27](tradingagents/agents/utils/memory.py)
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- Main.py now includes OpenRouter configuration example (commented out) for easy reference
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### Fixed
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- ChromaDB collection persistence issue by using `get_or_create_collection()` instead of `create_collection()` to prevent "collection already exists" errors and enable persistent memory across application restarts [file:tradingagents/agents/utils/memory.py:29](tradingagents/agents/utils/memory.py) (Issue #30)
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- Improved error messages for missing OPENROUTER_API_KEY when using openrouter provider
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- Better embedding client initialization for different LLM providers
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---
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## [1.0.0] - 2025-01-01 (Example - Update with actual release date)
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### Added
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- Initial multi-agent trading framework release
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- Support for multiple LLM providers
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- Analyst team (fundamental, sentiment, news, technical)
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- Researcher debate mechanism
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- Risk management workflow
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- CLI interface
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- Integration with financial data APIs
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