v0.19.0

🚨 Breaking Changes

• Removed BufferConversationMemory.
• Simplified Event Listener format.
• Restrict Python support to >=3.9,<3.12. 3.12 support is coming, but is currently blocked by several downstream libraries.
• Removed Tokenizer's encode and decode methods.
• Removed TextToolMemory and BlobToolMemory.

🆕 New Features

• Combined TextToolMemory and BlobToolMemory under ToolMemory.
• Added Conversation Memory buffering via max_runs parameter.
• Added Conversation Memory pruning to prevent long running conversations from exceeding prompt token limit.
• Added prompt streaming to Prompt Drivers that can support it.
• Added EmailLoader.
• Added support for more file extensions in FileManager Tool.
• Added share_file activity to GoogleDriveClient Tool.
• Added serialization and deserialization for all Events.

🔧 Improvements

• Added BaseVectorStoreDriver.QueryResult.id.
• Fixed SummaryConversationMemory bugs.
• Refactored EmailClient to use EmailLoader.
• Refactored Embedding Drivers to use Chunkers for improvements on embedding large text.
• Added parsing of OpenAi rate limit headers for future use.
• Added __len__ magic methods for Artifacts (thanks @Bubble-Interface!).
• Fixed boto3 session not being passed from BedrockTitanEmbeddingDriver into BedrockTitanTokenizer.

📖 Docs

• Updated docs for new Event Listener format.
• Added page for Extraction Engines.
• Added sections for additional Task types.
• Added page for OpenWeatherClient Tool.
• Added example for PgVectorStoreDriver
• Updated page for Conversation Memory buffering changes.