Version 0.18.3

What's Changed

Added

• Slot signal (createSlot, isSlot): A stable reactive source that delegates reads and writes to a swappable backing signal. Designed for integration layers (e.g. custom element systems) where a property position must switch its backing signal — from a local writable State to a parent-controlled Memo — without breaking existing subscribers. The slot object doubles as a property descriptor for Object.defineProperty(). replace(nextSignal) swaps the backing signal and invalidates downstream subscribers; current() returns the currently delegated signal. Options mirror State: optional guard and equals.

Fixed

• match() now preserves tuple types: The ok handler correctly receives per-position types (e.g., [number, string]) instead of a widened union (e.g., (number | string)[]). The signals parameter and MatchHandlers type now use readonly [...T] to preserve tuple inference.

Full Changelog: v0.18.2...v0.18.3