# 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).
## [2.0.0-rc.0] - 2026-02-22
### Added
- `Jido.AI.Plugins.Chat` as the conversational anchor plugin with built-in tool-calling paths.
- New strategy capability plugins:
- `Jido.AI.Plugins.Reasoning.ChainOfThought`
- `Jido.AI.Plugins.Reasoning.TreeOfThoughts`
- `Jido.AI.Plugins.Reasoning.GraphOfThoughts`
- `Jido.AI.Plugins.Reasoning.TRM`
- `Jido.AI.Plugins.Reasoning.Adaptive`
- `Jido.AI.Actions.Reasoning.RunStrategy` for isolated strategy execution (`:cot | :tot | :got | :trm | :adaptive`).
- Internal dedicated strategy runner agents for plugin-driven strategy execution.
- Shared strategy module-action fallback execution in `Jido.AI.Reasoning.Helpers`.
- Migration guide for plugin/signal changes: `guides/user/migration_plugins_and_signals_v3.md`.
### Changed
- Published the first 2.0.0 release-candidate line for Hex (`2.0.0-rc.0`)
- Aligned ecosystem dependency ranges to stable releases: `jido ~> 2.0`, `jido_action ~> 2.0`
- Updated dev/test smoke dependency to `jido_browser ~> 1.0`
- Strategy runtimes now execute plugin-routed `Jido.Action` module instructions instead of no-oping unknown module actions.
- Plugin-routed action context is standardized to include `state`, `agent`, and `plugin_state`.
- LLM/tool-calling actions now consistently read mounted defaults from context/plugin state.
- `Jido.AI.Actions.ToolCalling.CallWithTools` and `ListTools` now resolve tools from broader fallback context sources.
- Public docs updated to the new plugin taxonomy and strategy-run capability model.
### Removed
- Public plugin modules:
- `Jido.AI.Plugins.LLM`
- `Jido.AI.Plugins.ToolCalling`
- `Jido.AI.Plugins.Reasoning`
- Legacy public plugin signal contracts tied to those modules (`llm.*`, `tool.*`, and `reasoning.analyze|infer|explain` plugin routes).
### Migration Notes
- This is a hard-replace breaking release for the plugin surface (no compatibility adapters).
- Replace removed plugins/signals using:
- `guides/user/migration_plugins_and_signals_v3.md`
## [2.0.0] - Previous
### Added
- Complete rewrite with clean architecture
- Splode-based error handling via `Jido.AI.Error`
- Zoi schema validation support
- Integration with ReqLLM for LLM provider abstraction
- Integration with jido_action for composable AI actions
### Changed
- **Breaking**: Complete API redesign for v2
- Module namespace changed from `JidoAi` to `Jido.AI`
<!-- changelog -->
## [v2.1.0](https://github.com/agentjido/jido_ai/compare/v2.0.0...v2.1.0) (2026-03-29)
### Features:
* request: enrich completed request metadata (#233) by mikehostetler
* request: enrich completed request metadata by mikehostetler
* react: add queued mid-run steering controls (#225) by mikehostetler
* react: add mid-run steering controls by mikehostetler
* split out reasoning lifecycle parity (#231) by mikehostetler
* split out reasoning lifecycle parity by mikehostetler
* split out AI tool error contract (#230) by mikehostetler
* split out AI observability core (#229) by mikehostetler
* split out AI observability core by mikehostetler
* context: carry refs through context entries and projection (#213) by Julian Scheid
* context: carry refs through context entries and projection by Julian Scheid
* react: allow callers to attach extra refs to thread entries by mikehostetler
* react: allow callers to attach extra refs to thread entries (#211) by Julian Scheid
* react: allow callers to attach extra refs to thread entries by Julian Scheid
### Bug Fixes:
* preserve formatter imports during jido_ai.install (#237) by mikehostetler
* stop importing jido_ai formatter config by mikehostetler
* avoid dialyzer warnings in model input by mikehostetler
* adaptive: preserve compatibility strings for failures (#234) by mikehostetler
* request: normalize compatibility last_answer by mikehostetler
* strategy: preserve raw error terms in snapshot result (#223) by Julian Scheid
* strategy: preserve raw error terms in snapshot result by Julian Scheid
* cli: preserve compatibility strings for raw failures by Julian Scheid
* react: harden steering queue lifecycle by mikehostetler
* react: align queue error types by mikehostetler
* react: preserve input injected compatibility events by mikehostetler
* remove dead lifecycle telemetry fallback by mikehostetler
* unblock split PR CI by mikehostetler
* tool_adapter: ensure modules are loaded before validating (#226) by Philip Munksgaard
* pass details as keyword to `execution_error` (#214) by Julian Scheid
* pass details as keyword to execution_error by Julian Scheid
* examples: preserve action error details maps by Julian Scheid
* context: preserve refs during replay and restore by Julian Scheid
* preserve multimodal tool result content parts (#209) by mikehostetler
* agent: accept full ReqLLM model inputs by mikehostetler
* preserve multimodal tool result content parts by mikehostetler
* react: preserve extra thread refs by mikehostetler
* context: normalize restored multimodal tool content by mikehostetler
* react: preserve extra thread refs by Julian Scheid
* agent: accept full ReqLLM model inputs (#206) by mikehostetler
* format mix.exs for CI by mikehostetler
### Refactoring:
* react: tighten queued control boundaries (#235) by mikehostetler
* remove ModelInput helper (#238) by mikehostetler
* remove ModelInput helper by mikehostetler
* react: clarify queued steering semantics by mikehostetler
* cli: codify non-interactive mix task contract (#205) by mikehostetler
## [2.0.0](https://github.com/agentjido/jido_ai/compare/v2.0.0-rc.0...2.0.0) (2026-03-15)
### Breaking Changes:
* remove Jido.AI.Thread compatibility shim by dbhowmick
* remove public Jido.AI.set_context API by dbhowmick
* react: project context lifecycle onto core thread by dbhowmick
### Features:
* react: add request-scoped tool controls (#200) by mikehostetler
* react: add request-scoped tool controls by mikehostetler
* add Igniter installer for automated setup (#169) by Nickcom4
* add Igniter installer for automated package setup by Nickcom4
* ai: add prompt builder and context lifecycle helpers (#188) by austin macciola
* react: add set_thread for conversation session resumption (#184) by dbhowmick
* react: add set_thread for conversation session resumption by dbhowmick
* add effect policy gating and runtime tool-effect application (#172) by mikehostetler
* reasoning: add effect policy and runtime tool-effect application by mikehostetler
### Bug Fixes:
* react: resolve lint issues by mikehostetler
* unify ReAct stream liveness and reasoning continuity (#196) by mikehostetler
* unify react stream liveness and reasoning continuity by mikehostetler
* use req_llm keepalive callbacks by mikehostetler
* test: align rebased stream timeout option names by mikehostetler
* react: remove unreachable assistant context clause by mikehostetler
* examples: restore weather tool compatibility by mikehostetler
* add LICENSE file (#194) by mikehostetler
* preserve OpenAI Responses continuation across tool loops (#192) by mikehostetler
* preserve openai responses tool continuation by mikehostetler
* preserve responses continuation in tool loops by mikehostetler
* align react runner with quality checks by mikehostetler
* raise and forward react max_tokens defaults by mikehostetler
* install jido as dependency via installs field by Nickcom4
* installer: satisfy doctor docs coverage by Nickcom4
* react: defer thread replacement until terminal run state by dbhowmick
* react: resolve dialyzer failures in context ops by dbhowmick
* forward streaming option from agent macro to strategy config (#186) by Edgar Gomes
* forward streaming option from agent macro to strategy config by Edgar Gomes
* break compile-connected ReAct cycle from xref issue #181 (#182) by mikehostetler
* react: break compile-connected ReAct dependency cycle by mikehostetler
* add runtime state snapshots to tool execution contexts (#180) by mikehostetler
* reasoning: inject runtime state snapshots into tool contexts by mikehostetler
* react: normalize standalone tool state snapshot aliases by mikehostetler
* react: remove unreachable snapshot fallback for dialyzer by mikehostetler
* harden Thread inspect for truncated telemetry payloads (#178) by mikehostetler
* effects: harden policy parsing and ToT policy wiring by mikehostetler
* dialyzer: remove unreachable tuple branches by mikehostetler
* reasoning: enforce deterministic tool effect ordering by mikehostetler
* dialyzer: remove unreachable fallback in ToT ordering helper by mikehostetler
* agent: preserve literal option evaluation after rebase by mikehostetler
* effects: enforce constraint normalization and ToT fallback ordering by mikehostetler
* reasoning: normalize canonical llm_result envelopes by mikehostetler
* react: forward llm opts and http options end-to-end (#171) by mikehostetler
* react: forward llm opts and http options end-to-end by mikehostetler
* react: harden llm option normalization and provider option translation by mikehostetler
* react: resolve dialyzer unreachable clauses in option mapping by mikehostetler
### Refactoring:
* examples: move examples to top-level folder (#190) by mikehostetler
* examples: move examples into standalone project by mikehostetler
* examples: keep examples in top-level folder by mikehostetler
* ai: adopt Context API and deprecate Thread shim by dbhowmick
* react: remove set_thread compatibility surface by dbhowmick
* reasoning: remove internal agent_state snapshot alias by mikehostetler
