Migrate v10.x dependency management to pnpm

[andrewiggins]

Summary

• migrate the v10.x branch from npm package-lock files to a pnpm workspace and committed pnpm-lock.yaml
• update package scripts, Husky, docs, and CI workflows to install/cache/run/pack with pnpm
• keep npm publishing behavior intact while matching PR Migrate dependency management to pnpm #5085's pnpm 11 and Node 24 toolchain policy

Verification

• pnpm --version -> 11.1.0
• pnpm install --frozen-lockfile
• pnpm run lint
• Used a temporary change to src to verify benchmmark and size action still passes

Notes

• pnpm run test:unit was attempted, but this Codespaces host is missing Playwright browser system libraries (libatk, libxcomposite, libgbm, libasound, etc.), so the browser portion cannot launch here.

GPT 5.5 was used to generate some parts of this PR

[github-actions]

📊 Tachometer Benchmark Results

Summary

duration

• create10k: unsure 🔍 -0% - +1% (-2.85ms - +7.36ms)
  ^{preact-local vs preact-main}
• filter-list: unsure 🔍 -0% - +1% (-0.03ms - +0.10ms)
  ^{preact-local vs preact-main}
• hydrate1k: unsure 🔍 -2% - +3% (-1.35ms - +1.64ms)
  ^{preact-local vs preact-main}
• many-updates: unsure 🔍 -1% - +3% (-0.15ms - +0.41ms)
  ^{preact-local vs preact-main}
• replace1k: unsure 🔍 -2% - +1% (-1.45ms - +0.67ms)
  ^{preact-local vs preact-main}
• text-update: unsure 🔍 -0% - +9% (-0.00ms - +0.18ms)
  ^{preact-local vs preact-main}
• todo: unsure 🔍 -1% - +1% (-0.40ms - +0.46ms)
  ^{preact-local vs preact-main}
• update10th1k: slower ❌ 1% - 6% (0.47ms - 1.94ms)
  ^{preact-local vs preact-main}

usedJSHeapSize

• create10k: unsure 🔍 -0% - +0% (-0.00ms - +0.00ms)
  ^{preact-local vs preact-main}
• filter-list: unsure 🔍 -0% - +0% (-0.00ms - +0.00ms)
  ^{preact-local vs preact-main}
• hydrate1k: unsure 🔍 -3% - +3% (-0.17ms - +0.17ms)
  ^{preact-local vs preact-main}
• many-updates: unsure 🔍 -0% - +0% (-0.00ms - +0.00ms)
  ^{preact-local vs preact-main}
• replace1k: unsure 🔍 -0% - +0% (-0.00ms - +0.00ms)
  ^{preact-local vs preact-main}
• text-update: unsure 🔍 -4% - +3% (-0.04ms - +0.03ms)
  ^{preact-local vs preact-main}
• todo: unsure 🔍 +0% - +0% (+0.00ms - +0.00ms)
  ^{preact-local vs preact-main}
• update10th1k: unsure 🔍 +0% - +0% (+0.00ms - +0.01ms)
  ^{preact-local vs preact-main}

Results

create10k

• Browser: chrome-headless
• Sample size: 50
• Built by: CI #5602

• Commit: 637c7be

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	833.34ms - 841.58ms	-	unsure 🔍 -0% - +1% -2.85ms - +7.36ms
preact-main	832.19ms - 838.22ms	unsure 🔍 -1% - +0% -7.36ms - +2.85ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	19.21ms - 19.21ms	-	unsure 🔍 -0% - +0% -0.00ms - +0.00ms
preact-main	19.21ms - 19.21ms	unsure 🔍 -0% - +0% -0.00ms - +0.00ms	-

filter-list

• Browser: chrome-headless
• Sample size: 50
• Built by: CI #5602

• Commit: 637c7be

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	16.56ms - 16.67ms	-	unsure 🔍 -0% - +1% -0.03ms - +0.10ms
preact-main	16.56ms - 16.61ms	unsure 🔍 -1% - +0% -0.10ms - +0.03ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	1.56ms - 1.57ms	-	unsure 🔍 -0% - +0% -0.00ms - +0.00ms
preact-main	1.56ms - 1.57ms	unsure 🔍 -0% - +0% -0.00ms - +0.00ms	-

hydrate1k

• Browser: chrome-headless
• Sample size: 50
• Built by: CI #5602

• Commit: 637c7be

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	60.40ms - 62.47ms	-	unsure 🔍 -2% - +3% -1.35ms - +1.64ms
preact-main	60.21ms - 62.36ms	unsure 🔍 -3% - +2% -1.64ms - +1.35ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	5.01ms - 5.26ms	-	unsure 🔍 -3% - +3% -0.17ms - +0.17ms
preact-main	5.01ms - 5.25ms	unsure 🔍 -3% - +3% -0.17ms - +0.17ms	-

many-updates

• Browser: chrome-headless
• Sample size: 50
• Built by: CI #5602

• Commit: 637c7be

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	16.31ms - 16.75ms	-	unsure 🔍 -1% - +3% -0.15ms - +0.41ms
preact-main	16.23ms - 16.57ms	unsure 🔍 -2% - +1% -0.41ms - +0.15ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	3.73ms - 3.74ms	-	unsure 🔍 -0% - +0% -0.00ms - +0.00ms
preact-main	3.73ms - 3.73ms	unsure 🔍 -0% - +0% -0.00ms - +0.00ms	-

replace1k

• Browser: chrome-headless
• Sample size: 100
• Built by: CI #5602

• Commit: 637c7be

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	57.21ms - 58.55ms	-	unsure 🔍 -2% - +1% -1.45ms - +0.67ms
preact-main	57.45ms - 59.09ms	unsure 🔍 -1% - +3% -0.67ms - +1.45ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	3.02ms - 3.02ms	-	unsure 🔍 -0% - +0% -0.00ms - +0.00ms
preact-main	3.02ms - 3.02ms	unsure 🔍 -0% - +0% -0.00ms - +0.00ms	-

run-warmup-0

Version	Avg time	vs preact-local	vs preact-main
preact-local	26.92ms - 27.63ms	-	unsure 🔍 -1% - +2% -0.39ms - +0.60ms
preact-main	26.83ms - 27.51ms	unsure 🔍 -2% - +1% -0.60ms - +0.39ms	-

run-warmup-1

Version	Avg time	vs preact-local	vs preact-main
preact-local	31.56ms - 32.38ms	-	unsure 🔍 -2% - +2% -0.55ms - +0.61ms
preact-main	31.53ms - 32.35ms	unsure 🔍 -2% - +2% -0.61ms - +0.55ms	-

run-warmup-2

Version	Avg time	vs preact-local	vs preact-main
preact-local	31.50ms - 32.58ms	-	unsure 🔍 -4% - +1% -1.15ms - +0.43ms
preact-main	31.83ms - 32.97ms	unsure 🔍 -1% - +4% -0.43ms - +1.15ms	-

run-warmup-3

Version	Avg time	vs preact-local	vs preact-main
preact-local	26.41ms - 27.45ms	-	unsure 🔍 -0% - +4% -0.10ms - +1.04ms
preact-main	26.23ms - 26.69ms	unsure 🔍 -4% - +0% -1.04ms - +0.10ms	-

run-warmup-4

Version	Avg time	vs preact-local	vs preact-main
preact-local	22.41ms - 23.25ms	-	unsure 🔍 -4% - +1% -1.00ms - +0.27ms
preact-main	22.72ms - 23.67ms	unsure 🔍 -1% - +4% -0.27ms - +1.00ms	-

run-final

Version	Avg time	vs preact-local	vs preact-main
preact-local	21.55ms - 21.94ms	-	unsure 🔍 -1% - +2% -0.33ms - +0.34ms
preact-main	21.46ms - 22.00ms	unsure 🔍 -2% - +1% -0.34ms - +0.33ms	-

text-update

• Browser: chrome-headless
• Sample size: 230
• Built by: CI #5602

• Commit: 637c7be

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	2.08ms - 2.20ms	-	unsure 🔍 -0% - +9% -0.00ms - +0.18ms
preact-main	1.98ms - 2.12ms	unsure 🔍 -9% - +0% -0.18ms - +0.00ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	1.02ms - 1.07ms	-	unsure 🔍 -4% - +3% -0.04ms - +0.03ms
preact-main	1.03ms - 1.08ms	unsure 🔍 -3% - +4% -0.03ms - +0.04ms	-

todo

• Browser: chrome-headless
• Sample size: 50
• Built by: CI #5602

• Commit: 637c7be

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	34.77ms - 35.31ms	-	unsure 🔍 -1% - +1% -0.40ms - +0.46ms
preact-main	34.67ms - 35.35ms	unsure 🔍 -1% - +1% -0.46ms - +0.40ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	1.26ms - 1.26ms	-	unsure 🔍 +0% - +0% +0.00ms - +0.00ms
preact-main	1.26ms - 1.26ms	unsure 🔍 -0% - -0% -0.00ms - -0.00ms	-

update10th1k

• Browser: chrome-headless
• Sample size: 130
• Built by: CI #5602

• Commit: 637c7be

duration

Version	Avg time	vs preact-local	vs preact-main
preact-local	32.99ms - 34.06ms	-	slower ❌ 1% - 6% 0.47ms - 1.94ms
preact-main	31.82ms - 32.83ms	faster ✔ 1% - 6% 0.47ms - 1.94ms	-

usedJSHeapSize

Version	Avg time	vs preact-local	vs preact-main
preact-local	2.99ms - 3.00ms	-	unsure 🔍 +0% - +0% +0.00ms - +0.01ms
preact-main	2.99ms - 2.99ms	unsure 🔍 -0% - -0% -0.01ms - -0.00ms	-

_{tachometer-reporter-action v2 for CI}

[github-actions]

Size Change: 0 B

Total Size: 79.6 kB

ℹ️ View Unchanged

Filename	Size
compat/dist/compat.js	4.22 kB
compat/dist/compat.mjs	4.14 kB
compat/dist/compat.module.js	4.14 kB
compat/dist/compat.umd.js	4.28 kB
debug/dist/debug.js	3.85 kB
debug/dist/debug.mjs	3.85 kB
debug/dist/debug.module.js	3.85 kB
debug/dist/debug.umd.js	3.93 kB
devtools/dist/devtools.js	260 B
devtools/dist/devtools.mjs	274 B
devtools/dist/devtools.module.js	274 B
devtools/dist/devtools.umd.js	346 B
dist/preact.js	4.83 kB
dist/preact.min.js	4.85 kB
dist/preact.min.module.js	4.86 kB
dist/preact.min.umd.js	4.87 kB
dist/preact.mjs	4.86 kB
dist/preact.module.js	4.86 kB
dist/preact.umd.js	4.88 kB
hooks/dist/hooks.js	1.51 kB
hooks/dist/hooks.mjs	1.54 kB
hooks/dist/hooks.module.js	1.54 kB
hooks/dist/hooks.umd.js	1.58 kB
jsx-runtime/dist/jsxRuntime.js	1.01 kB
jsx-runtime/dist/jsxRuntime.mjs	985 B
jsx-runtime/dist/jsxRuntime.module.js	985 B
jsx-runtime/dist/jsxRuntime.umd.js	1.08 kB
test-utils/dist/testUtils.js	473 B
test-utils/dist/testUtils.mjs	477 B
test-utils/dist/testUtils.module.js	477 B
test-utils/dist/testUtils.umd.js	555 B

_{compressed-size-action}