Pyscript 2.0.0 release

The 2.0.0 release supports HASS 2026.5+, and is backward compatible with earlier versions.

This release has a major refactoring of the decorator subsystem, plus compatibility updates and bug fixes.

Thanks to @dmamelin for the significant contributions and improvements in this release!

The major change is a new decorator manager that replaces the monolithic decorator implementation with a modular architecture organized by decorator type (state, event, timing, service, mqtt, webhook, task). The new implementation is the default; if you encounter a regression you can temporarily set legacy_decorators: true in your pyscript configuration to revert to the prior behavior while filing a bug report. The legacy code will be removed in a future version.

There are no intentional breaking changes.

Summary of changes:

• Refactored decorator subsystem into a modular decorator manager (PR #818 from @dmamelin); also see #795
• Added legacy_decorators config option to revert to the prior decorator implementation if issues are discovered (PR #818 from @dmamelin)
• Significantly improved internal error handling for more accurate error messages and tracebacks (PR #813 from @dmamelin)
• Fixed regression in legacy trigger expressions (PR #823 from @dmamelin)
• Fixed AST slice handling (PR #816 from @dmamelin)
• Fixed EvalFuncVar binding via descriptor (PR #790 from @dmamelin)
• Fixed module context starting before Home Assistant is ready (PR #785 from @dmamelin)
• Migrated linting from black/isort/flake8/bandit to ruff (PR #805 from @dmamelin)
• Documented reload limitation when using legacy_decorators (PR #822 from @dmamelin)
• Added HA 2026.5 compatibility for StateVal helpers, with backward compatibility for older HA versions, and support for Python 3.14 (PR #828 from @dmamelin)
• Added webhook_trigger IDE stub (PR #825 from @nolsto)
• Added support for None as hold_off in time_active and watch in state_trigger (PR #822 from @dmamelin)
• Documentation updates

The release includes contributions from @dmamelin, @nolsto, and @mefranklin6. Thanks to everyone who contributed PRs and reported issues.

Enjoy!