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Bump reported React version to 19.0.0 - #5171

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JoviDeCroock merged 3 commits into
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JoviDeCroock/compat-react-19-version
Aug 1, 2026
Merged

Bump reported React version to 19.0.0#5171
JoviDeCroock merged 3 commits into
mainfrom
JoviDeCroock/compat-react-19-version

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@JoviDeCroock

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If we support use we could probably justify this bump

@github-actions

github-actions Bot commented Jul 18, 2026

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📊 Tachometer Benchmark Results

Summary

duration

  • create10k: unsure 🔍 -1% - +0% (-4.37ms - +2.78ms)
    preact-local vs preact-main
  • filter-list: unsure 🔍 -1% - +0% (-0.08ms - +0.06ms)
    preact-local vs preact-main
  • hydrate1k: unsure 🔍 -0% - +2% (-0.26ms - +1.27ms)
    preact-local vs preact-main
  • many-updates: unsure 🔍 -1% - +0% (-0.09ms - +0.02ms)
    preact-local vs preact-main
  • replace1k: unsure 🔍 -2% - +2% (-1.14ms - +0.90ms)
    preact-local vs preact-main
  • text-update: unsure 🔍 -5% - +3% (-0.09ms - +0.07ms)
    preact-local vs preact-main
  • todo: unsure 🔍 -0% - +1% (-0.15ms - +0.27ms)
    preact-local vs preact-main
  • update10th1k: unsure 🔍 -2% - +5% (-0.57ms - +1.69ms)
    preact-local vs preact-main

usedJSHeapSize

  • create10k: unsure 🔍 -0% - +0% (-0.02ms - +0.03ms)
    preact-local vs preact-main
  • filter-list: unsure 🔍 -0% - +0% (-0.00ms - +0.00ms)
    preact-local vs preact-main
  • hydrate1k: unsure 🔍 -1% - +4% (-0.04ms - +0.21ms)
    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: faster ✔ 0% - 6% (0.00ms - 0.07ms)
    preact-local vs preact-main
  • todo: unsure 🔍 -0% - +0% (-0.00ms - +0.00ms)
    preact-local vs preact-main
  • update10th1k: unsure 🔍 -0% - +0% (-0.01ms - +0.01ms)
    preact-local vs preact-main

Results

create10k

duration

VersionAvg timevs preact-localvs preact-main
preact-local792.94ms - 798.08ms-unsure 🔍
-1% - +0%
-4.37ms - +2.78ms
preact-main793.81ms - 798.79msunsure 🔍
-0% - +1%
-2.78ms - +4.37ms
-

usedJSHeapSize

VersionAvg timevs preact-localvs preact-main
preact-local19.23ms - 19.27ms-unsure 🔍
-0% - +0%
-0.02ms - +0.03ms
preact-main19.23ms - 19.26msunsure 🔍
-0% - +0%
-0.03ms - +0.02ms
-
filter-list

duration

VersionAvg timevs preact-localvs preact-main
preact-local16.51ms - 16.58ms-unsure 🔍
-1% - +0%
-0.08ms - +0.06ms
preact-main16.49ms - 16.62msunsure 🔍
-0% - +1%
-0.06ms - +0.08ms
-

usedJSHeapSize

VersionAvg timevs preact-localvs preact-main
preact-local1.57ms - 1.57ms-unsure 🔍
-0% - +0%
-0.00ms - +0.00ms
preact-main1.57ms - 1.57msunsure 🔍
-0% - +0%
-0.00ms - +0.00ms
-
hydrate1k

duration

VersionAvg timevs preact-localvs preact-main
preact-local55.49ms - 56.65ms-unsure 🔍
-0% - +2%
-0.26ms - +1.27ms
preact-main55.06ms - 56.06msunsure 🔍
-2% - +0%
-1.27ms - +0.26ms
-

usedJSHeapSize

VersionAvg timevs preact-localvs preact-main
preact-local5.02ms - 5.24ms-unsure 🔍
-1% - +4%
-0.04ms - +0.21ms
preact-main5.00ms - 5.09msunsure 🔍
-4% - +1%
-0.21ms - +0.04ms
-
many-updates

duration

VersionAvg timevs preact-localvs preact-main
preact-local16.48ms - 16.58ms-unsure 🔍
-1% - +0%
-0.09ms - +0.02ms
preact-main16.54ms - 16.59msunsure 🔍
-0% - +1%
-0.02ms - +0.09ms
-

usedJSHeapSize

VersionAvg timevs preact-localvs preact-main
preact-local3.75ms - 3.76ms-unsure 🔍
-0% - +0%
-0.00ms - +0.00ms
preact-main3.76ms - 3.76msunsure 🔍
-0% - +0%
-0.00ms - +0.00ms
-
replace1k
  • Browser: chrome-headless
  • Sample size: 100
  • Built by: CI #5780
  • Commit: 98b61ad

duration

VersionAvg timevs preact-localvs preact-main
preact-local58.99ms - 60.53ms-unsure 🔍
-2% - +2%
-1.14ms - +0.90ms
preact-main59.20ms - 60.55msunsure 🔍
-2% - +2%
-0.90ms - +1.14ms
-

usedJSHeapSize

VersionAvg timevs preact-localvs preact-main
preact-local3.03ms - 3.03ms-unsure 🔍
-0% - +0%
-0.00ms - +0.00ms
preact-main3.03ms - 3.03msunsure 🔍
-0% - +0%
-0.00ms - +0.00ms
-

run-warmup-0

VersionAvg timevs preact-localvs preact-main
preact-local27.74ms - 28.45ms-unsure 🔍
-2% - +1%
-0.62ms - +0.37ms
preact-main27.88ms - 28.57msunsure 🔍
-1% - +2%
-0.37ms - +0.62ms
-

run-warmup-1

VersionAvg timevs preact-localvs preact-main
preact-local34.24ms - 35.66ms-unsure 🔍
-3% - +3%
-0.89ms - +1.13ms
preact-main34.11ms - 35.55msunsure 🔍
-3% - +3%
-1.13ms - +0.89ms
-

run-warmup-2

VersionAvg timevs preact-localvs preact-main
preact-local33.09ms - 34.56ms-unsure 🔍
-4% - +3%
-1.26ms - +0.87ms
preact-main33.24ms - 34.79msunsure 🔍
-3% - +4%
-0.87ms - +1.26ms
-

run-warmup-3

VersionAvg timevs preact-localvs preact-main
preact-local27.66ms - 27.88ms-unsure 🔍
-0% - +1%
-0.01ms - +0.33ms
preact-main27.48ms - 27.74msunsure 🔍
-1% - +0%
-0.33ms - +0.01ms
-

run-warmup-4

VersionAvg timevs preact-localvs preact-main
preact-local28.40ms - 29.42ms-unsure 🔍
-2% - +3%
-0.66ms - +0.79ms
preact-main28.33ms - 29.35msunsure 🔍
-3% - +2%
-0.79ms - +0.66ms
-

run-final

VersionAvg timevs preact-localvs preact-main
preact-local22.03ms - 22.38ms-unsure 🔍
-1% - +1%
-0.31ms - +0.18ms
preact-main22.09ms - 22.44msunsure 🔍
-1% - +1%
-0.18ms - +0.31ms
-
text-update
  • Browser: chrome-headless
  • Sample size: 210
  • Built by: CI #5780
  • Commit: 98b61ad

duration

VersionAvg timevs preact-localvs preact-main
preact-local1.96ms - 2.08ms-unsure 🔍
-5% - +3%
-0.09ms - +0.07ms
preact-main1.98ms - 2.08msunsure 🔍
-3% - +5%
-0.07ms - +0.09ms
-

usedJSHeapSize

VersionAvg timevs preact-localvs preact-main
preact-local1.03ms - 1.07ms-faster ✔
0% - 6%
0.00ms - 0.07ms
preact-main1.06ms - 1.11msslower ❌
0% - 6%
0.00ms - 0.07ms
-
todo

duration

VersionAvg timevs preact-localvs preact-main
preact-local31.82ms - 32.16ms-unsure 🔍
-0% - +1%
-0.15ms - +0.27ms
preact-main31.81ms - 32.05msunsure 🔍
-1% - +0%
-0.27ms - +0.15ms
-

usedJSHeapSize

VersionAvg timevs preact-localvs preact-main
preact-local1.28ms - 1.28ms-unsure 🔍
-0% - +0%
-0.00ms - +0.00ms
preact-main1.28ms - 1.28msunsure 🔍
-0% - +0%
-0.00ms - +0.00ms
-
update10th1k

duration

VersionAvg timevs preact-localvs preact-main
preact-local33.83ms - 35.47ms-unsure 🔍
-2% - +5%
-0.57ms - +1.69ms
preact-main33.31ms - 34.87msunsure 🔍
-5% - +2%
-1.69ms - +0.57ms
-

usedJSHeapSize

VersionAvg timevs preact-localvs preact-main
preact-local2.98ms - 2.99ms-unsure 🔍
-0% - +0%
-0.01ms - +0.01ms
preact-main2.98ms - 2.99msunsure 🔍
-0% - +0%
-0.01ms - +0.01ms
-

tachometer-reporter-action v2 for CI

@github-actions

github-actions Bot commented Jul 18, 2026

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Size Change: -1 B (-0.01%)

Total Size: 15.9 kB

📦 View Changed
Filename Size Change
compat/dist/compat.mjs 3.88 kB -1 B (-0.03%)
ℹ️ View Unchanged
Filename Size
debug/dist/debug.mjs 3.88 kB
devtools/dist/devtools.mjs 274 B
dist/preact.mjs 5 kB
hooks/dist/hooks.mjs 1.5 kB
jsx-runtime/dist/jsxRuntime.mjs 861 B
test-utils/dist/testUtils.mjs 473 B

compressed-size-action

@coveralls

coveralls commented Jul 18, 2026

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Coverage Status

coverage: 99.292%. remained the same — JoviDeCroock/compat-react-19-version into main

@JoviDeCroock
JoviDeCroock merged commit 6bb8272 into main Aug 1, 2026
13 checks passed
@JoviDeCroock
JoviDeCroock deleted the JoviDeCroock/compat-react-19-version branch August 1, 2026 09:57
@JoviDeCroock JoviDeCroock mentioned this pull request Aug 5, 2026
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3 participants