Eino: v0.2.*-second release

v0.2.6

Release Date: 2024-11-27

Features

• Added streaming Pre and Post StateHandler
• Support for StateChain
• Added MessageParser node to convert ChatModel output Message to business-customized structures
  • Parse(ctx context.Context, m *Message) (T, error)
• Support for WithNodeKey() when Chain AppendNode

BugFix

• Fixed the issue where the first Chunk was modified during ConcatMessage due to lack of deep Copy.
• During ConcatMessage, FinishReason now only retains the valid value from the last Chunk

v0.2.5

Release Date: 2024-11-21

BugFix

• Fixed panic caused by disabling keywords like include in Gonja

v0.2.4

Release Date: 2024-11-20

Features

• Added TokenUsage field in Eino Message ResponseMeta
• Eino Message ToolsCall sorted by index

BugFix

v0.2.3

Release Date: 2024-11-12

Features

• Support for context Timeout and Cancel during Graph invocation

BugFix

• FinishReason may be returned in any chunk, not necessarily in the last chunk
• callbacks.HandlerBuilder no longer provides a default Needed() method. This method defaults to returning false, which causes all aspect functions to fail in embedded callbacks.HandlerBuilder scenarios

v0.2.2

Release Date: 2024-11-12

Features

• Added FinishReason field in Message
• Added GetStateT method to get State struct in nodes
• Lazy Init Gonja SDK

BugFix

v0.2.1

Release Date: 2024-11-07

BugFix

• Fixed the SSTI vulnerability in the Jinja chat template langchaingo has gonja template injection vulnerability

v0.2.0

Release Date: 2024-11-07

Features

• Callback API refactoring (compatible update)

  • For component implementers: Hidden and deprecated callbacks.Manager, providing simpler utility functions for injecting callback aspects.
  • For Handler implementers: Provides template methods for quick callbacks.Handler implementation, encapsulating details such as component type checking, input/output type assertion and conversion. Users only need to provide specific implementations of specific callback methods for specific components.
  • Runtime mechanism: For a specific callback aspect timing during a run, additional filtering of handlers to execute is performed based on component type and specific methods implemented by Handler.

• Added Host Multi-Agent: Implemented Host mode Multi-Agent, where Host performs intent recognition and then redirects to various Specialist Agents for specific generation.

• React Agent API changes (incompatible)

  • Removed AgentCallback definition, changed to quickly inject ChatModel and Tool CallbackHandlers through BuildAgentCallback utility function. Usage:

    func BuildAgentCallback(modelHandler *model.CallbackHandler, toolHandler *tool.CallbackHandler) callbacks.Handler {
        return template.NewHandlerHelper().ChatModel(modelHandler).Tool(toolHandler).Handler()
    }
    

    • This achieves semantic alignment between AgentCallback and components, allowing ctx to be returned and using extended tool.CallbackInput, tool.CallbackOutput.

  • Removed react.Option definition. React Agent now uses the common agent.Option definition for Agent, facilitating orchestration at the multi-agent level.

    • WithAgentCallback is no longer needed to inject special AgentCallback, new usage:

    agent.WithComposeOptions(compose.WithCallbacks(xxxCallbackHandler))
    

• Added Document Parser interface definition: As a dependency of the Loader component, responsible for parsing io.Reader into Document, and provides ExtParser implementation for parsing based on file extension.

BugFix

• Fixed potential null pointer exception caused by embedding.GetCommonOptions and indexer.GetCommonOptions not checking apply for null.
• During Graph runtime, preProcessor and postProcessor use the current ctx.

v0.2.0-dev.1

Release Date: 2024-11-05

Features

• Initial design and support for Checkpoint mechanism, available for early trial

BugFix