📝 Draft: Announcing Effection 4.1

[cowboyd]

Motivation

Six months of soft-launched work since 4.0 (context APIs, experimental entry point, allSettled(), using(), faster runtime, leaner npm package) need a single announcement to land the 4.1 release.

Approach

Draft a blog post at www/blog/2026-07-09-announcing-effection-4-1/ that mirrors the shape of the 3.0 and 4.0 announcements: brief opening callback to 4.0 → feature tour bullets → per-feature sections with code examples → what's next → get started. Structured skeleton first; prose gets filled in on this branch. CodSpeed numbers pulled from the dashboard are already baked into the perf section (~5.5× on effection.recursion, ~27% on effection.events).

Draft — not ready for review yet.

[pkg-pr-new]

Open in StackBlitz

npm i https://pkg.pr.new/effection@1214

commit: bab36ce

[codspeed-hq]

Merging this PR will degrade performance by 10.17%

❌ 1 regressed benchmark
✅ 5 untouched benchmarks

Warning

Please fix the performance issues or acknowledge them on CodSpeed.

Performance Changes

	Mode	Benchmark	BASE	HEAD	Efficiency
❌	Memory	effection-inline.recursion	3.3 KB	3.7 KB	-10.17%

Tip

Investigate this regression by commenting @codspeedbot fix this regression on this PR, or directly use the CodSpeed MCP with your agent.

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_{Comparing release-announcement (bab36ce) with v4 (3537660)}