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Upgrade to Visual Studio 2026#16170

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JunielKatarn wants to merge 18 commits into
microsoft:mainfrom
jurocha-ms:vs18
Open

Upgrade to Visual Studio 2026#16170
JunielKatarn wants to merge 18 commits into
microsoft:mainfrom
jurocha-ms:vs18

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@JunielKatarn
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@JunielKatarn JunielKatarn commented May 21, 2026

Description

Add support for Visual Studio 2026 (MSVC 14.5).

Type of Change

Erase all that don't apply.

  • New feature (non-breaking change which adds functionality)

Why

Visual Studio 2026 has reached enouth adoption and maturity to be considered the standard IDE for Windows development.
Keeping Visual Studio 2022 as the default may force developers to have two different VS versions in their computers.

What

  • Updated dependency installation script to install Visual Studio 2026 and .NET 10.
  • Conditioned deprecated async-related flags and namespaces to older MSVC versions (14.4 and earlier).
  • Converted APIs that use std::future as coroutines to WinRT async types.

Microsoft Reviewers: Open in CodeFlow

@JunielKatarn JunielKatarn requested review from a team as code owners May 21, 2026 01:44
Comment thread vnext/Microsoft.ReactNative/Utils/LocalBundleReader.cpp Outdated
Comment thread vnext/Shared/DevSupportManager.cpp Outdated
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github-actions Bot commented May 21, 2026

Performance Test Results

Branch: vs18
Commit: 9e579346
Time: 2026-05-22T05:16:35.638Z
Tests: 161/161 passed

✅ Passed

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

SectionList

Scenario Mean Median StdDev Renders vs Baseline
SectionList mount 5.40ms 5.00ms ±1.84ms 1 +0.0%
SectionList unmount 0.20ms 0.00ms ±0.42ms 0 +0.0%
SectionList rerender 13.70ms 13.00ms ±3.06ms 2 +23.8%
SectionList with-3-sections-15-items 6.50ms 7.00ms ±1.27ms 1 +27.3%
SectionList with-5-sections-50-items 6.50ms 6.00ms ±1.90ms 1 +0.0%
SectionList with-10-sections-200-items 5.90ms 5.50ms ±1.10ms 1 +0.0%
SectionList with-20-sections-200-items 6.50ms 6.00ms ±2.07ms 1 +20.0%
SectionList with-section-separator 2.20ms 2.00ms ±0.63ms 1 +0.0%
SectionList with-item-separator 2.90ms 3.00ms ±0.99ms 1 +50.0%
SectionList with-header-footer 2.40ms 2.00ms ±0.97ms 1 +0.0%
SectionList with-section-footer 2.30ms 2.00ms ±0.67ms 1 +0.0%
SectionList with-sticky-section-headers 2.40ms 2.00ms ±1.07ms 1 +0.0%
SectionList with-empty-list 0.70ms 1.00ms ±0.48ms 1 +0.0%
SectionList with-50-sections-1000-items 2.50ms 2.50ms ±0.53ms 1 +25.0%

FlatList

Scenario Mean Median StdDev Renders vs Baseline
FlatList mount 4.80ms 4.50ms ±1.23ms 1 +12.5%
FlatList unmount 0.50ms 0.50ms ±0.53ms 0 +Infinity%
FlatList rerender 10.60ms 10.00ms ±2.12ms 2 +11.1%
FlatList with-10-items 7.00ms 6.00ms ±1.49ms 1 +50.0%
FlatList with-100-items 7.20ms 7.00ms ±1.23ms 1 +40.0%
FlatList with-500-items 5.00ms 4.00ms ±1.70ms 1 +0.0%
FlatList with-1000-items 4.30ms 4.00ms ±0.67ms 1 +0.0%
FlatList horizontal 4.30ms 4.50ms ±0.95ms 1 -10.0%
FlatList with-separator 2.00ms 2.00ms ±0.82ms 1 +0.0%
FlatList with-header-footer 2.10ms 2.00ms ±1.45ms 1 +0.0%
FlatList with-empty-list 0.50ms 0.50ms ±0.53ms 1 +0.0%
FlatList with-get-item-layout 1.30ms 1.00ms ±0.48ms 1 +0.0%
FlatList inverted 1.30ms 1.00ms ±0.48ms 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 1.00ms 1.00ms ±0.00ms 1 +0.0%
TouchableOpacity unmount 0.00ms 0.00ms ±0.00ms 0 +0.0%
TouchableOpacity rerender 1.00ms 1.00ms ±0.00ms 2 +0.0%
TouchableOpacity custom-active-opacity 0.70ms 1.00ms ±0.67ms 1 +0.0%
TouchableOpacity disabled 0.60ms 1.00ms ±0.52ms 1 +0.0%
TouchableOpacity with-all-handlers 1.20ms 1.00ms ±1.40ms 1 +0.0%
TouchableOpacity with-hit-slop 0.70ms 1.00ms ±0.48ms 1 +0.0%
TouchableOpacity with-delay 0.70ms 1.00ms ±0.48ms 1 +0.0%
TouchableOpacity nested 1.40ms 1.00ms ±0.52ms 1 +0.0%
TouchableOpacity multiple-10 5.53ms 5.00ms ±1.25ms 1 -16.7%
TouchableOpacity multiple-50 26.07ms 26.00ms ±2.28ms 1 -10.3%
TouchableOpacity multiple-100 34.60ms 35.00ms ±11.95ms 1 -30.0%

ScrollView

Scenario Mean Median StdDev Renders vs Baseline
ScrollView mount 0.30ms 0.00ms ±0.48ms 1 +0.0%
ScrollView unmount 0.00ms 0.00ms ±0.00ms 0 +0.0%
ScrollView rerender 0.80ms 1.00ms ±0.42ms 2 +0.0%
ScrollView children-20 3.40ms 3.00ms ±1.59ms 1 -25.0%
ScrollView children-100 16.87ms 17.00ms ±2.00ms 1 +6.3%
ScrollView horizontal 3.20ms 3.00ms ±0.42ms 1 -25.0%
ScrollView sticky-headers 2.80ms 3.00ms ±1.23ms 1 +0.0%
ScrollView scroll-indicators 1.30ms 1.00ms ±1.34ms 1 +0.0%
ScrollView nested 1.40ms 1.00ms ±0.52ms 1 +0.0%
ScrollView content-container-style 0.50ms 0.50ms ±0.53ms 1 -50.0%
ScrollView children-500 20.20ms 21.00ms ±2.51ms 1 +10.5%

TouchableHighlight

Scenario Mean Median StdDev Renders vs Baseline
TouchableHighlight mount 0.20ms 0.00ms ±0.42ms 1 -100.0%
TouchableHighlight unmount 0.00ms 0.00ms ±0.00ms 0 +0.0%
TouchableHighlight rerender 0.60ms 1.00ms ±0.52ms 2 +0.0%
TouchableHighlight custom-underlay-color 0.50ms 0.50ms ±0.53ms 1 +Infinity%
TouchableHighlight custom-active-opacity 0.40ms 0.00ms ±0.52ms 1 +0.0%
TouchableHighlight disabled 0.30ms 0.00ms ±0.48ms 1 +0.0%
TouchableHighlight with-all-handlers 0.40ms 0.00ms ±0.52ms 1 +0.0%
TouchableHighlight with-hit-slop 0.80ms 0.50ms ±1.23ms 1 +Infinity%
TouchableHighlight nested-touchables 0.80ms 1.00ms ±0.42ms 1 +0.0%
TouchableHighlight multiple-touchables-10 2.70ms 3.00ms ±0.67ms 1 +0.0%
TouchableHighlight multiple-touchables-50 13.40ms 13.00ms ±2.07ms 1 +4.0%
TouchableHighlight multiple-touchables-100 23.80ms 23.50ms ±3.46ms 1 +4.4%

Pressable

Scenario Mean Median StdDev Renders vs Baseline
Pressable mount 0.30ms 0.00ms ±0.48ms 1 +0.0%
Pressable unmount 0.00ms 0.00ms ±0.00ms 0 +0.0%
Pressable rerender 0.60ms 1.00ms ±0.52ms 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 0.30ms 0.00ms ±0.48ms 1 +0.0%
Pressable nested 0.60ms 1.00ms ±0.52ms 1 +0.0%
Pressable multiple-10 2.93ms 3.00ms ±0.46ms 1 +0.0%
Pressable multiple-50 15.47ms 16.00ms ±1.73ms 1 +14.3%
Pressable multiple-100 16.80ms 12.00ms ±9.75ms 1 +0.0%

Modal

Scenario Mean Median StdDev Renders vs Baseline
Modal mount 0.30ms 0.00ms ±0.48ms 1 +0.0%
Modal unmount 0.10ms 0.00ms ±0.32ms 0 +0.0%
Modal rerender 0.50ms 0.50ms ±0.53ms 2 +Infinity%
Modal slide-animation 0.30ms 0.00ms ±0.48ms 1 +0.0%
Modal fade-animation 0.20ms 0.00ms ±0.42ms 1 +0.0%
Modal transparent 0.30ms 0.00ms ±0.48ms 1 +0.0%
Modal with-callbacks 0.30ms 0.00ms ±0.48ms 1 +0.0%
Modal rich-content 1.90ms 2.00ms ±1.20ms 1 +0.0%
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 0.20ms 0.00ms ±0.42ms 1 +0.0%
Image with-tint-color 0.10ms 0.00ms ±0.32ms 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 1.07ms 1.00ms ±0.26ms 1 +0.0%
Image multiple-50 3.93ms 4.00ms ±1.22ms 1 +33.3%
Image multiple-100 8.27ms 8.00ms ±1.03ms 1 +0.0%

ActivityIndicator

Scenario Mean Median StdDev Renders vs Baseline
ActivityIndicator mount 0.20ms 0.00ms ±0.42ms 1 +0.0%
ActivityIndicator unmount 0.00ms 0.00ms ±0.00ms 0 +0.0%
ActivityIndicator rerender 0.20ms 0.00ms ±0.42ms 2 +0.0%
ActivityIndicator size-large 0.20ms 0.00ms ±0.42ms 1 +0.0%
ActivityIndicator size-small 0.20ms 0.00ms ±0.42ms 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 0.93ms 1.00ms ±0.26ms 1 +0.0%
ActivityIndicator multiple-50 4.00ms 4.00ms ±0.93ms 1 +0.0%
ActivityIndicator multiple-100 7.73ms 8.00ms ±1.10ms 1 +14.3%

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 0.10ms 0.00ms ±0.32ms 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 0.20ms 0.00ms ±0.42ms 1 +0.0%
Switch multiple-10 1.47ms 1.00ms ±0.52ms 1 -50.0%
Switch multiple-50 9.53ms 9.00ms ±2.00ms 1 +0.0%
Switch multiple-100 18.80ms 19.00ms ±2.62ms 1 +18.8%

Button

Scenario Mean Median StdDev Renders vs Baseline
Button mount 0.60ms 1.00ms ±0.52ms 1 +0.0%
Button unmount 0.10ms 0.00ms ±0.32ms 0 +0.0%
Button rerender 1.00ms 1.00ms ±0.00ms 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 0.60ms 1.00ms ±0.52ms 1 +0.0%
Button multiple-10 5.93ms 5.00ms ±1.28ms 1 -16.7%
Button multiple-50 21.13ms 24.00ms ±8.11ms 1 -11.1%
Button multiple-100 15.60ms 15.00ms ±2.82ms 1 -21.1%

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 0.10ms 0.00ms ±0.32ms 2 +0.0%
TextInput multiline 0.10ms 0.00ms ±0.32ms 1 +0.0%
TextInput with-value 0.10ms 0.00ms ±0.32ms 1 +0.0%
TextInput styled 0.20ms 0.00ms ±0.42ms 1 +0.0%
TextInput multiple-100 11.27ms 11.00ms ±2.87ms 1 +57.1%

View

Scenario Mean Median StdDev Renders vs Baseline
View mount 0.00ms 0.00ms ±0.00ms 1 +0.0%
View unmount 0.10ms 0.00ms ±0.32ms 0 +0.0%
View rerender 0.20ms 0.00ms ±0.42ms 2 +0.0%
View nested-50 3.67ms 3.00ms ±1.05ms 1 +0.0%
View nested-100 7.87ms 8.00ms ±1.19ms 1 +14.3%
View shadow 0.20ms 0.00ms ±0.42ms 1 +0.0%
View border-radius 0.10ms 0.00ms ±0.32ms 1 +0.0%
View nested-500 17.53ms 10.00ms ±13.53ms 1 +0.0%

Text

Scenario Mean Median StdDev Renders vs Baseline
Text mount 0.20ms 0.00ms ±0.42ms 1 +0.0%
Text unmount 0.00ms 0.00ms ±0.00ms 0 +0.0%
Text rerender 0.20ms 0.00ms ±0.42ms 2 +0.0%
Text long-1000 0.20ms 0.00ms ±0.42ms 1 +0.0%
Text nested 0.20ms 0.00ms ±0.42ms 1 +0.0%
Text styled 0.20ms 0.00ms ±0.42ms 1 +0.0%
Text multiple-100 8.00ms 8.00ms ±1.60ms 1 +14.3%

SectionList.native-perf-test.ts

Scenario Mean Median StdDev Renders vs Baseline
SectionList native mount 5.06ms 4.81ms ±0.62ms 1 -26.0%

FlatList.native-perf-test.ts

Scenario Mean Median StdDev Renders vs Baseline
FlatList native mount 5.86ms 5.73ms ±1.26ms 1 -37.9%

TouchableHighlight.native-perf-test.ts

Scenario Mean Median StdDev Renders vs Baseline
TouchableHighlight native mount 1.33ms 1.31ms ±0.13ms 1 -37.3%

TouchableOpacity.native-perf-test.ts

Scenario Mean Median StdDev Renders vs Baseline
TouchableOpacity native mount 1.55ms 1.52ms ±0.13ms 1 -51.7%

Pressable.native-perf-test.ts

Scenario Mean Median StdDev Renders vs Baseline
Pressable native mount 1.48ms 1.37ms ±0.31ms 1 -45.5%

ScrollView.native-perf-test.ts

Scenario Mean Median StdDev Renders vs Baseline
ScrollView native mount 3.02ms 2.99ms ±0.21ms 1 -26.1%

ActivityIndicator.native-perf-test.ts

Scenario Mean Median StdDev Renders vs Baseline
ActivityIndicator native mount 1.52ms 1.37ms ±0.72ms 1 -44.8%

TextInput.native-perf-test.ts

Scenario Mean Median StdDev Renders vs Baseline
TextInput native mount 2.24ms 2.15ms ±0.27ms 1 -47.5%

Switch.native-perf-test.ts

Scenario Mean Median StdDev Renders vs Baseline
Switch native mount 1.45ms 1.35ms ±0.40ms 1 -22.0%

Button.native-perf-test.ts

Scenario Mean Median StdDev Renders vs Baseline
Button native mount 1.97ms 1.79ms ±0.33ms 1 -31.2%

Modal.native-perf-test.ts

Scenario Mean Median StdDev Renders vs Baseline
Modal native mount 1.01ms 0.93ms ±0.20ms 1 -23.6%

Image.native-perf-test.ts

Scenario Mean Median StdDev Renders vs Baseline
Image native mount 1.77ms 1.78ms ±0.23ms 1 -21.4%

View.native-perf-test.ts

Scenario Mean Median StdDev Renders vs Baseline
View native mount 1.16ms 1.13ms ±0.29ms 1 -21.3%

Text.native-perf-test.ts

Scenario Mean Median StdDev Renders vs Baseline
Text native mount 1.42ms 1.27ms ±0.27ms 1 -27.0%

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