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lbliii 1 min read 214 words Updated 23 days ago

Milo 0.2.0

Saga effects, structured concurrency, extended theme colors, pipeline TUI, and orchestration hardening.

Feature release focused on saga effect expansion, structured concurrency primitives, extended theming, and orchestration-layer resilience.

Highlights

  • Saga effects expansion — Race (first-wins with loser cancellation), All (wait-all with fail-fast), Take (pause until action dispatched), and Debounce (cancel-and-restart timer)
  • Structured concurrency — SagaContext for cancellation trees, EffectResult handler registry, TakeEvery/TakeLatest higher-order effects, configurable thread pool withmax_workers and on_pool_pressure
  • Orchestration hardening — Timeout wrapper effect, TryCall structured error handling, saga cancellation tokens, PhasePolicy (retry/skip/stop), DFS cycle detection, phase context forwarding
  • Extended theme colors —ThemeStyle now supports 256-color (int index), truecolor (#rrggbb hex), and background colors (bgfield)
  • Pipeline TUI — Interactivebuildpipeexample with real-time phase visualization and progress bar
  • pipeline_progress macro — Reusable component for rendering PipelineStatewith status and progress bar
  • kida-templates 0.4.0 — Match blocks, try/fallback error boundaries, unless conditionals, and publicterminal_colorAPI

MCP gateway improvements

  • Per-request timeout enforcement
  • Graceful child restart on failure
  • Gateway test suite covering namespacing, routing, proxying, idle reaping, and error handling

Schema improvements

  • Tuple, set, and frozenset schema support
  • $reffor recursive dataclasses
  • Fallback warnings for unsupported types

Infrastructure

  • Adopted Towncrier for changelog management with CI enforcement
  • Comprehensive benchmarks and free-threading stress tests for saga effects