Version 0.18.4

What's Changed

Fixed

• Watched invalidate() now respects equals at every graph level: Previously, calling invalidate() from a Memo or Task watched callback propagated FLAG_DIRTY directly to effect sinks, causing unconditional re-runs even when the recomputed value was unchanged. Now invalidate() delegates to propagate(node), which marks the node itself FLAG_DIRTY and propagates FLAG_CHECK to downstream sinks. During flush, effects verify their sources via refresh() — if the memo's equals function determines the value is unchanged, the effect is cleaned without running. This eliminates unnecessary effect executions for watched memos with custom equality or stable return values.

Changed

• propagate() supports FLAG_CHECK for effect nodes: The effect branch of propagate() now respects the newFlag parameter instead of unconditionally setting FLAG_DIRTY. Effects are enqueued only on first notification; subsequent propagations escalate the flag (e.g., CHECK → DIRTY) without re-enqueuing.
• flush() processes FLAG_CHECK effects: The flush loop now calls refresh() on effects with either FLAG_DIRTY or FLAG_CHECK, enabling the check-sources-first path for effects.
• Task invalidate() aborts eagerly: Task watched callbacks now abort in-flight computations immediately during propagate() rather than deferring to recomputeTask(), consistent with the normal dependency-change path.

Full Changelog: v0.18.3...v0.18.4