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[0.83] Use hermes 0.0.0-2604.21001-94aa5e1d#16034

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Apr 29, 2026
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[0.83] Use hermes 0.0.0-2604.21001-94aa5e1d#16034
vmoroz merged 2 commits intomicrosoft:0.83-stablefrom
vmoroz:PR/0.83-use-hermes-0.0.0-2604.21001-94aa5e1d

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@vmoroz vmoroz commented Apr 22, 2026 •
edited by microsoft-github-policy-service Bot
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@vmoroz vmoroz requested review from a team as code owners April 22, 2026 21:18
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Performance Test Results

Branch: PR/0.83-use-hermes-0.0.0-2604.21001-94aa5e1d
Commit: a5d43511
Time: 2026-04-29T04:06:00.894Z
Tests: 161/161 passed

✅ Passed

161 scenario(s) across 28 suite(s) — no regressions

SectionList

Scenario Mean Median StdDev Renders vs Baseline
SectionList mount 4.30ms 4.00ms ±0.48ms 1 -20.0%
SectionList unmount 0.10ms 0.00ms ±0.32ms 0 +0.0%
SectionList rerender 9.90ms 10.00ms ±1.10ms 2 -4.8%
SectionList with-3-sections-15-items 4.50ms 4.00ms ±0.71ms 1 -27.3%
SectionList with-5-sections-50-items 5.30ms 5.00ms ±0.67ms 1 -16.7%
SectionList with-10-sections-200-items 5.10ms 5.00ms ±1.45ms 1 -9.1%
SectionList with-20-sections-200-items 4.70ms 4.00ms ±2.31ms 1 -20.0%
SectionList with-section-separator 2.00ms 2.00ms ±0.00ms 1 +0.0%
SectionList with-item-separator 2.20ms 2.00ms ±0.63ms 1 +0.0%
SectionList with-header-footer 1.40ms 1.00ms ±0.52ms 1 -50.0%
SectionList with-section-footer 1.50ms 1.50ms ±0.53ms 1 -25.0%
SectionList with-sticky-section-headers 2.00ms 1.50ms ±1.56ms 1 -25.0%
SectionList with-empty-list 0.50ms 0.50ms ±0.53ms 1 -50.0%
SectionList with-50-sections-1000-items 1.50ms 1.50ms ±0.53ms 1 -25.0%

FlatList

Scenario Mean Median StdDev Renders vs Baseline
FlatList mount 4.00ms 4.00ms ±0.67ms 1 +0.0%
FlatList unmount 0.00ms 0.00ms ±0.00ms 0 +0.0%
FlatList rerender 9.10ms 8.00ms ±2.02ms 2 -11.1%
FlatList with-10-items 4.20ms 4.00ms ±0.42ms 1 +0.0%
FlatList with-100-items 4.90ms 4.00ms ±1.29ms 1 -20.0%
FlatList with-500-items 4.30ms 4.00ms ±0.48ms 1 +0.0%
FlatList with-1000-items 4.20ms 4.00ms ±0.42ms 1 +0.0%
FlatList horizontal 3.70ms 4.00ms ±0.95ms 1 -20.0%
FlatList with-separator 1.80ms 2.00ms ±0.42ms 1 +0.0%
FlatList with-header-footer 1.50ms 1.50ms ±0.53ms 1 -25.0%
FlatList with-empty-list 0.50ms 0.50ms ±0.53ms 1 +0.0%
FlatList with-get-item-layout 1.80ms 1.50ms ±1.23ms 1 +50.0%
FlatList inverted 1.40ms 1.00ms ±0.52ms 1 -33.3%
FlatList with-num-columns 2.70ms 3.00ms ±0.48ms 1 +0.0%

TouchableOpacity

Scenario Mean Median StdDev Renders vs Baseline
TouchableOpacity mount 0.80ms 1.00ms ±0.42ms 1 +0.0%
TouchableOpacity unmount 0.00ms 0.00ms ±0.00ms 0 +0.0%
TouchableOpacity rerender 1.10ms 1.00ms ±0.74ms 2 +0.0%
TouchableOpacity custom-active-opacity 0.80ms 1.00ms ±0.42ms 1 +0.0%
TouchableOpacity disabled 0.50ms 0.50ms ±0.53ms 1 -50.0%
TouchableOpacity with-all-handlers 1.00ms 1.00ms ±1.49ms 1 +0.0%
TouchableOpacity with-hit-slop 0.70ms 1.00ms ±0.48ms 1 +0.0%
TouchableOpacity with-delay 0.60ms 1.00ms ±0.52ms 1 +0.0%
TouchableOpacity nested 1.30ms 1.00ms ±0.48ms 1 +0.0%
TouchableOpacity multiple-10 5.87ms 5.00ms ±1.55ms 1 -16.7%
TouchableOpacity multiple-50 27.00ms 27.00ms ±2.36ms 1 -6.9%
TouchableOpacity multiple-100 47.20ms 48.00ms ±18.37ms 1 -4.0%

ScrollView

Scenario Mean Median StdDev Renders vs Baseline
ScrollView mount 0.40ms 0.00ms ±0.52ms 1 +0.0%
ScrollView unmount 0.00ms 0.00ms ±0.00ms 0 +0.0%
ScrollView rerender 0.70ms 1.00ms ±0.48ms 2 +0.0%
ScrollView children-20 3.07ms 3.00ms ±1.44ms 1 -25.0%
ScrollView children-100 14.60ms 14.00ms ±2.82ms 1 -12.5%
ScrollView horizontal 3.50ms 3.00ms ±1.27ms 1 -25.0%
ScrollView sticky-headers 2.50ms 3.00ms ±0.85ms 1 +0.0%
ScrollView scroll-indicators 0.80ms 1.00ms ±0.42ms 1 +0.0%
ScrollView nested 1.70ms 1.00ms ±1.06ms 1 +0.0%
ScrollView content-container-style 1.00ms 1.00ms ±1.49ms 1 +0.0%
ScrollView children-500 19.27ms 19.00ms ±2.76ms 1 +0.0%

TouchableHighlight

Scenario Mean Median StdDev Renders vs Baseline
TouchableHighlight mount 0.30ms 0.00ms ±0.48ms 1 -100.0%
TouchableHighlight unmount 0.10ms 0.00ms ±0.32ms 0 +0.0%
TouchableHighlight rerender 0.60ms 1.00ms ±0.52ms 2 +0.0%
TouchableHighlight custom-underlay-color 0.40ms 0.00ms ±0.52ms 1 +0.0%
TouchableHighlight custom-active-opacity 0.40ms 0.00ms ±0.52ms 1 +0.0%
TouchableHighlight disabled 0.20ms 0.00ms ±0.42ms 1 +0.0%
TouchableHighlight with-all-handlers 0.40ms 0.00ms ±0.52ms 1 +0.0%
TouchableHighlight with-hit-slop 0.20ms 0.00ms ±0.42ms 1 +0.0%
TouchableHighlight nested-touchables 1.00ms 1.00ms ±1.49ms 1 +0.0%
TouchableHighlight multiple-touchables-10 2.10ms 2.00ms ±0.32ms 1 -33.3%
TouchableHighlight multiple-touchables-50 11.20ms 11.00ms ±1.69ms 1 -12.0%
TouchableHighlight multiple-touchables-100 21.10ms 21.00ms ±3.81ms 1 -6.7%

Pressable

Scenario Mean Median StdDev Renders vs Baseline
Pressable mount 0.30ms 0.00ms ±0.48ms 1 +0.0%
Pressable unmount 0.10ms 0.00ms ±0.32ms 0 +0.0%
Pressable rerender 0.30ms 0.00ms ±0.48ms 2 -100.0%
Pressable with-all-handlers 0.40ms 0.00ms ±0.52ms 1 +0.0%
Pressable with-style-function 0.40ms 0.00ms ±0.52ms 1 +0.0%
Pressable disabled 0.30ms 0.00ms ±0.48ms 1 +0.0%
Pressable with-hit-slop 0.10ms 0.00ms ±0.32ms 1 +0.0%
Pressable nested 0.70ms 1.00ms ±0.48ms 1 +0.0%
Pressable multiple-10 2.60ms 3.00ms ±0.51ms 1 +0.0%
Pressable multiple-50 13.80ms 13.00ms ±2.14ms 1 -7.1%
Pressable multiple-100 15.07ms 11.00ms ±9.26ms 1 -8.3%

Modal

Scenario Mean Median StdDev Renders vs Baseline
Modal mount 0.40ms 0.00ms ±0.52ms 1 +0.0%
Modal unmount 0.00ms 0.00ms ±0.00ms 0 +0.0%
Modal rerender 0.20ms 0.00ms ±0.42ms 2 +0.0%
Modal slide-animation 0.20ms 0.00ms ±0.42ms 1 +0.0%
Modal fade-animation 0.30ms 0.00ms ±0.48ms 1 +0.0%
Modal transparent 0.40ms 0.00ms ±0.52ms 1 +0.0%
Modal with-callbacks 0.20ms 0.00ms ±0.42ms 1 +0.0%
Modal rich-content 1.40ms 1.00ms ±0.52ms 1 -50.0%
Modal with-accessibility 0.30ms 0.00ms ±0.48ms 1 +0.0%

Image

Scenario Mean Median StdDev Renders vs Baseline
Image mount 0.20ms 0.00ms ±0.42ms 1 +0.0%
Image unmount 0.00ms 0.00ms ±0.00ms 0 +0.0%
Image rerender 0.20ms 0.00ms ±0.42ms 2 +0.0%
Image with-resize-mode 0.20ms 0.00ms ±0.42ms 1 +0.0%
Image with-border-radius 0.10ms 0.00ms ±0.32ms 1 +0.0%
Image with-tint-color 0.00ms 0.00ms ±0.00ms 1 +0.0%
Image with-blur-radius 0.20ms 0.00ms ±0.42ms 1 +0.0%
Image with-accessibility 0.20ms 0.00ms ±0.42ms 1 +0.0%
Image multiple-10 0.73ms 1.00ms ±0.46ms 1 +0.0%
Image multiple-50 3.47ms 3.00ms ±1.13ms 1 +0.0%
Image multiple-100 7.60ms 7.00ms ±1.64ms 1 -12.5%

ActivityIndicator

Scenario Mean Median StdDev Renders vs Baseline
ActivityIndicator mount 0.10ms 0.00ms ±0.32ms 1 +0.0%
ActivityIndicator unmount 0.10ms 0.00ms ±0.32ms 0 +0.0%
ActivityIndicator rerender 0.20ms 0.00ms ±0.42ms 2 +0.0%
ActivityIndicator size-large 0.10ms 0.00ms ±0.32ms 1 +0.0%
ActivityIndicator size-small 0.10ms 0.00ms ±0.32ms 1 +0.0%
ActivityIndicator with-color 0.10ms 0.00ms ±0.32ms 1 +0.0%
ActivityIndicator not-animating 0.10ms 0.00ms ±0.32ms 1 +0.0%
ActivityIndicator with-accessibility 0.10ms 0.00ms ±0.32ms 1 +0.0%
ActivityIndicator multiple-10 0.80ms 1.00ms ±0.41ms 1 +0.0%
ActivityIndicator multiple-50 3.53ms 3.00ms ±1.06ms 1 -25.0%
ActivityIndicator multiple-100 7.27ms 7.00ms ±0.70ms 1 +0.0%

Switch

Scenario Mean Median StdDev Renders vs Baseline
Switch mount 0.20ms 0.00ms ±0.42ms 1 +0.0%
Switch unmount 0.00ms 0.00ms ±0.00ms 0 +0.0%
Switch rerender 0.20ms 0.00ms ±0.42ms 2 -100.0%
Switch value-true 0.30ms 0.00ms ±0.48ms 1 +0.0%
Switch disabled 0.20ms 0.00ms ±0.42ms 1 +0.0%
Switch custom-colors 0.20ms 0.00ms ±0.42ms 1 +0.0%
Switch on-value-change 0.20ms 0.00ms ±0.42ms 1 +0.0%
Switch with-accessibility 0.30ms 0.00ms ±0.48ms 1 +0.0%
Switch multiple-10 1.67ms 1.00ms ±1.29ms 1 -50.0%
Switch multiple-50 8.27ms 7.00ms ±2.28ms 1 -22.2%
Switch multiple-100 16.13ms 15.00ms ±3.04ms 1 -6.3%

Button

Scenario Mean Median StdDev Renders vs Baseline
Button mount 0.60ms 1.00ms ±0.52ms 1 +0.0%
Button unmount 0.00ms 0.00ms ±0.00ms 0 +0.0%
Button rerender 1.10ms 1.00ms ±0.57ms 2 +0.0%
Button disabled 0.60ms 1.00ms ±0.52ms 1 +0.0%
Button with-color 0.50ms 0.50ms ±0.53ms 1 +0.0%
Button with-accessibility 0.50ms 0.50ms ±0.53ms 1 -50.0%
Button multiple-10 5.20ms 5.00ms ±0.86ms 1 -16.7%
Button multiple-50 20.27ms 24.00ms ±7.34ms 1 -11.1%
Button multiple-100 16.73ms 17.00ms ±2.34ms 1 -10.5%

TextInput

Scenario Mean Median StdDev Renders vs Baseline
TextInput mount 0.10ms 0.00ms ±0.32ms 1 +0.0%
TextInput unmount 0.00ms 0.00ms ±0.00ms 0 +0.0%
TextInput rerender 0.20ms 0.00ms ±0.42ms 2 +0.0%
TextInput multiline 0.20ms 0.00ms ±0.42ms 1 +0.0%
TextInput with-value 0.10ms 0.00ms ±0.32ms 1 +0.0%
TextInput styled 0.10ms 0.00ms ±0.32ms 1 +0.0%
TextInput multiple-100 6.80ms 7.00ms ±1.37ms 1 +0.0%

View

Scenario Mean Median StdDev Renders vs Baseline
View mount 0.20ms 0.00ms ±0.42ms 1 +0.0%
View unmount 0.00ms 0.00ms ±0.00ms 0 +0.0%
View rerender 0.10ms 0.00ms ±0.32ms 2 +0.0%
View nested-50 3.00ms 3.00ms ±0.53ms 1 +0.0%
View nested-100 7.07ms 7.00ms ±1.44ms 1 +0.0%
View shadow 0.10ms 0.00ms ±0.32ms 1 +0.0%
View border-radius 0.10ms 0.00ms ±0.32ms 1 +0.0%
View nested-500 18.87ms 13.00ms ±11.72ms 1 +30.0%

Text

Scenario Mean Median StdDev Renders vs Baseline
Text mount 0.20ms 0.00ms ±0.42ms 1 +0.0%
Text unmount 0.10ms 0.00ms ±0.32ms 0 +0.0%
Text rerender 0.10ms 0.00ms ±0.32ms 2 +0.0%
Text long-1000 0.10ms 0.00ms ±0.32ms 1 +0.0%
Text nested 0.30ms 0.00ms ±0.48ms 1 +0.0%
Text styled 0.20ms 0.00ms ±0.42ms 1 +0.0%
Text multiple-100 7.80ms 8.00ms ±1.74ms 1 +14.3%

SectionList.native-perf-test.ts

Scenario Mean Median StdDev Renders vs Baseline
SectionList native mount 4.90ms 4.77ms ±0.78ms 1 -26.6%

FlatList.native-perf-test.ts

Scenario Mean Median StdDev Renders vs Baseline
FlatList native mount 5.01ms 4.48ms ±1.35ms 1 -51.5%

TouchableHighlight.native-perf-test.ts

Scenario Mean Median StdDev Renders vs Baseline
TouchableHighlight native mount 1.71ms 1.51ms ±0.75ms 1 -27.9%

TouchableOpacity.native-perf-test.ts

Scenario Mean Median StdDev Renders vs Baseline
TouchableOpacity native mount 1.61ms 1.54ms ±0.24ms 1 -51.1%

Pressable.native-perf-test.ts

Scenario Mean Median StdDev Renders vs Baseline
Pressable native mount 1.37ms 1.35ms ±0.09ms 1 -46.1%

ScrollView.native-perf-test.ts

Scenario Mean Median StdDev Renders vs Baseline
ScrollView native mount 2.97ms 2.69ms ±0.67ms 1 -33.6%

ActivityIndicator.native-perf-test.ts

Scenario Mean Median StdDev Renders vs Baseline
ActivityIndicator native mount 1.37ms 1.35ms ±0.15ms 1 -45.6%

TextInput.native-perf-test.ts

Scenario Mean Median StdDev Renders vs Baseline
TextInput native mount 2.32ms 2.17ms ±0.55ms 1 -47.0%

Switch.native-perf-test.ts

Scenario Mean Median StdDev Renders vs Baseline
Switch native mount 1.31ms 1.29ms ±0.11ms 1 -25.6%

Button.native-perf-test.ts

Scenario Mean Median StdDev Renders vs Baseline
Button native mount 2.20ms 2.15ms ±0.50ms 1 -17.3%

Modal.native-perf-test.ts

Scenario Mean Median StdDev Renders vs Baseline
Modal native mount 1.01ms 1.01ms ±0.09ms 1 -17.3%

Image.native-perf-test.ts

Scenario Mean Median StdDev Renders vs Baseline
Image native mount 1.60ms 1.44ms ±0.48ms 1 -36.3%

View.native-perf-test.ts

Scenario Mean Median StdDev Renders vs Baseline
View native mount 0.97ms 0.94ms ±0.10ms 1 -34.4%

Text.native-perf-test.ts

Scenario Mean Median StdDev Renders vs Baseline
Text native mount 1.24ms 1.17ms ±0.19ms 1 -33.0%

@vmoroz vmoroz enabled auto-merge (squash) April 22, 2026 22:46
@vmoroz vmoroz force-pushed the PR/0.83-use-hermes-0.0.0-2604.21001-94aa5e1d branch from 954f42a to 0ad6444 Compare April 29, 2026 03:38
@vmoroz vmoroz merged commit d86709f into microsoft:0.83-stable Apr 29, 2026
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