# Changelog
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
## [Unreleased]
## [0.5.0](https://github.com/lexoliu/aither/compare/v0.4.1...v0.5.0) - 2026-09-17
### Other
- release v0.4.1 ([#73](https://github.com/lexoliu/aither/pull/73))
- pin zenwave to hyper-rustls — default features drag in openssl-sys ([#67](https://github.com/lexoliu/aither/pull/67))
- model shared extensions and vendor-private surface ([#63](https://github.com/lexoliu/aither/pull/63))
## [0.4.0](https://github.com/lexoliu/aither/compare/v0.3.0...v0.4.0) - 2026-09-13
### Other
- Add session/resume and a generic stream transport ([#44](https://github.com/lexoliu/aither/pull/44))
## [0.3.0](https://github.com/lexoliu/aither/compare/v0.2.0...v0.3.0) - 2026-09-11
### Added
- *(acp)* add the client side of the Agent Client Protocol
- *(llm)* [**breaking**] adaptive thinking, wider effort ladder, reasoning-state round-trip
- provider-native tools, sandbox network audit, and handoff file index
- structured terminal errors + BackgroundReason with timer grace window
- add Event::ToolCallDelta for streaming tool call progress
- *(agent)* expose rolling KV-cache statistics on Agent
- *(agent)* add TerminalAgentBuilder::system_text
- *(agent)* add AgentBuilder::system_text for raw prose blocks
- *(agent)* add raw-text system blocks and prefix fingerprint
- apply local workspace changes
- add pdf-to-xml crate with in-process Paddle OCR backend
- add local mistral and llama providers
- add support for file attachments in OpenAI API
- *(openai)* enable parallel tool calls
- *(openai)* add Responses API streaming and subagent feedback
- *(cli)* add interactive CLI for testing agents
- *(core)* add ToolChoice enum for tool calling policy
- *(mcp)* add MCP client and server support
- *(webfetch)* add web fetching tool for agents
- *(core)* add Event-based streaming API for LanguageModel
- *(skills)* add aither-skills crate for dynamic workflow plugins
- *(ort)* add local ONNX Runtime embedding model support
- *(websearch)* add real web search providers using zenwave
- *(rag)* redesign crate with modular production-ready architecture
- remove obsolete documentation job and update release configuration
- streamline test workflow by removing redundant build and documentation test steps
- refactor CI/CD workflows by removing obsolete release management and enhancing test configurations
- enhance CI/CD workflows and add skip-check logic for release management
- Implement memory extraction and management tools
- enhance provider integrations and add convenience features in Cargo.toml files
- update error handling to use BoxHttpError across multiple modules
- add aither-llama integration with initial implementation and dependencies
- add Mem0 extraction/update demo and core library implementation for long-term memory management
- implement Coder and DeepResearchAgent for enhanced coding workflows and research capabilities
- enhance aither-rag with new indexing capabilities, async processing, and improved README examples
- enhance filesystem interface with async read, write, append, and directory operations
- add initial implementation of aither-rag with README, Cargo.toml, and example
- add thinking configuration and reasoning capabilities to moderation and content generation
- update CI workflows, add tests for multiple OS, and remove deprecated release-plz workflow
- enhance agent framework with memory management, planning, and execution capabilities
- implement conversation memory management with compression strategies
- Implement agent framework with planning and execution capabilities, add sub-agent and todo list management
- Add Gemini backend integration with audio, image, and moderation capabilities
- Add OpenRouter support and update API base URLs for Deepseek and OpenRouter
- Add OpenAI integration with support for various models and functionalities
### Fixed
- *(release)* drop config keys release-plz does not define
- normalise line endings to LF so templates render identically
- *(mcp)* drive stdio over blocking threads so Windows builds
- *(openai)* stop sending Chat-Completions-only params to the Responses API
- *(llama)* restore the thinking toggle and model-side tool-call parsing
- fix sandbox background terminal stdin and task tracking
- *(agent)* improve subagent display hook with detailed feedback
- *(openai)* improve Gemini compatibility and tool calling
- *(mem0)* wrap embedder in Mutex for interior mutability
- correct formatting of URL in Mem0 extraction/update demo documentation
- run Formatter
### Other
- describe how CRLF actually damages the wrapper script
- ignore the paste unmaintained advisory
- clear five advisories, and stop building two copies of Arrow
- state that commits carry no tool attribution
- drop the dependencies nothing uses, and fix a real typo
- collapse nested conditionals into let-chains
- *(sandbox)* depend on heel from crates.io instead of a sibling checkout
- release every workspace member, and let aither-browser be packaged
- declare the Rust 1.88 the code already requires
- make the workspace clippy-clean under -D warnings
- *(sandbox)* [**breaking**] follow heel's IpcCommand onto per-instance naming
- Merge production-readiness work into dev
- *(skills)* drop prompt-trigger auto-activation
- *(sandbox)* enable tokio macros feature
- *(browser)* extract browser tool protocol into aither workspace
- *(search)* extract search tool into aither workspace crate
- checkpoint current workspace changes
- Finish tool result and terminal refactors
- Improve terminal stdin wait detection
- Actorize mem0 runtime
- Run ORT inference on a worker thread
- Store HNSW index state as snapshots
- Collapse mem0 runtime locks
- Store CLI domain approvals as snapshots
- Store request approver state as snapshots
- Store virtual filesystem state as snapshots
- Drop unused container IPC socket field
- Refine MCP tool service loop
- Read Claude attachments asynchronously
- Read Gemini attachments asynchronously
- Read Copilot attachments asynchronously
- Read OpenAI attachments asynchronously
- Fetch model cache asynchronously
- Stop blocking inside mem0 async paths
- Simplify CLI domain approval state
- Load llama model listings asynchronously
- Drop synchronous subagent file loaders
- Remove mutex from mistral model cache
- Store todo list as snapshots
- Simplify aither string assembly
- Advertise skill resource catalogs
- Test terminal first tool exposure
- Remove mutex from request approver
- Advertise skill resource catalogs
- Cover skill allowlist enforcement
- Cover skill checkpoint restoration
- Emit permission pause lifecycle from bash
- Normalize aither runtime formatting
- Structure subagent tool results
- Emit pause lifecycle for interactive tools
- Avoid duplicate skill prompt entries
- Bind ask-user requests to session context
- Persist active skills in checkpoints
- Wire skill registries into runtime activation
- Activate skills during agent runs
- Preserve turn accounting after background continuation
- Emit background terminal lifecycle events
- Include tool surface details in checkpoints
- Bind workspace requests to session context
- Unify container IPC argument decoding
- Add checkpoint export API
- Version subagent schemas and emit run lifecycle events
- Emit turn-boundary checkpoints from agent runtime
- Structure compaction handoff documents
- Serialize ask context as XML
- Remove bash agent format string helpers
- Remove direct command format strings
- Type bash agent prompt sections
- Template command CLI error surfaces
- Type container shell runtime for IPC
- Reassemble context after idle gaps
- Make IPC CLI argument flattening deterministic
- Template container IPC wrapper generation
- Add typed cloud embedding provider
- Support sandboxed bash execution mode
- Remove sandbox permission compatibility alias
- Make IPC tool responses typed and fail-fast
- Track tasks diffs in aither agent context
- Reassemble context before compaction
- Infer default SSH targets for bash runtimes
- Preserve seeded system blocks on context restore
- Add turn-boundary hooks to aither-agent
- Serialize tool error reminders structurally
- Serialize agent XML context structurally
- Template agent reminder prompts
- Prefer handoff over automatic compaction
- Track assembled context windows in aither-agent
- Expose serializable agent context snapshots
- Rename agent working docs and sandbox mounts
- Tighten native terminal tools for bash agents
- Introduce Context and container/terminal support
- Rename Task tool to SubagentTool
- Enhance RAG and sandbox with semantic processing
- Add wasm32 compatibility to aither-gemini
- Add wasm32 target compatibility for aither-openai
- Refactor and improve code quality across multiple modules
- remove pdf_process crate and switch to CLI document tools (Docling/Marker)
- make pdf bundle export async with strict Pdfium and typed OCR config
- improve code formatting and readability across multiple files
- Add shell session management, multi-question ask_user, and transcript
- Add UI tool request infrastructure and tools
- Merge fix-code-smells
- Integrate new features
- Derive tool descriptions from args rustdoc comments
- Add ask command and YAML frontmatter for subagents
- Add sandboxed bash tool and bash-first agent
- Add WebFetch tool and improve tool handling
- Add model registry and tiered model groups
- Add permission prompts and filesystem delete support
- *(mcp)* add Context7 example and fix HTTP transport
- format code with cargo fmt
- remove llama crate and update release config
- *(examples)* update for Event-based streaming API
- add skills and webfetch to workspace
- *(agent)* redesign with minimal core and hook system
- *(providers)* update to Event-based streaming API
- add aither-ort to workspace dependencies
- *(rag)* update to use &mut self for embedding operations
- *(core)* change EmbeddingModel::embed to take &mut self
- Update OpenAI Responses integration
- Add repository guidelines, integrate Claude and OpenAI modules, and update workspace configuration
- Update rust-version in Cargo.toml to 1.87 and optimize methods in ModerationResult to const
