feat: upgrade expo example to SDK 56, React Native to 0.85.3

[jpudysz]

Summary

Summary by CodeRabbit

• Bug Fixes

  • Fixed box shadow color rendering on web platforms

• Chores

  • Updated React, React Native, and Expo SDK ecosystem dependencies to newer versions
  • Updated iOS build configuration settings for improved compatibility

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Project	Deployment	Actions	Updated (UTC)
react-native-unistyles-2.0	Ready	Preview, Comment	May 27, 2026 8:22am
react-native-unistyles-docs	Ready	Preview, Comment	May 27, 2026 8:22am

[coderabbitai]

No actionable comments were generated in the recent review. 🎉

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 63a0c1fb-1151-4428-ae97-b0adb29bb30c

📥 Commits

Reviewing files that changed from the base of the PR and between b1a84d3 and f2d2800.

⛔ Files ignored due to path filters (2)

• apps/example/ios/Podfile.lock is excluded by !**/*.lock
• bun.lock is excluded by !**/*.lock

📒 Files selected for processing (7)

• apps/example/ios/example.xcodeproj/project.pbxproj
• apps/example/package.json
• apps/expo-example/app.json
• apps/expo-example/package.json
• packages/unistyles/package.json
• packages/unistyles/src/specs/StyleSheet/index.ts
• packages/unistyles/src/web/convert/object/boxShadow.ts

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Walkthrough

This PR upgrades ecosystem dependencies across the monorepo from React Native 0.83.x to 0.85.x, bumps Expo SDK from 55 to 56 in the example app, adds React Native legacy architecture removal flag to iOS build settings, updates the unistyles StyleSheet API to use a different absoluteFill reference, and adds color stringification to box shadow web rendering.

Changes

Monorepo dependency and platform configuration updates

Layer / File(s)	Summary
Example app dependency updates apps/example/package.json	React, React Native, Reanimated, and React Native tooling packages are bumped to newer 0.85.x versions.
Expo example ecosystem upgrade apps/expo-example/app.json, apps/expo-example/package.json	Expo SDK upgrades from version 55 to 56, iOS deployment target bumped from 15.3 to 16.4, and Expo/React/React Native dependencies updated to match the newer toolchain.
Core library dependency updates packages/unistyles/package.json	React, React Native, Reanimated, and normalize-colors versions are updated to align with the ecosystem upgrade.
iOS build configuration flags apps/example/ios/example.xcodeproj/project.pbxproj	-DRCT_REMOVE_LEGACY_ARCH=1 compiler define added to OTHER_CFLAGS and OTHER_CPLUSPLUSFLAGS; SWIFT_ENABLE_EXPLICIT_MODULES set to NO in both Debug and Release configurations.

Core library API and implementation changes

Layer / File(s)	Summary
StyleSheet absoluteFillObject mapping update packages/unistyles/src/specs/StyleSheet/index.ts	UnistylesStyleSheet.absoluteFillObject type and runtime assignment changed to reference NativeStyleSheetType.absoluteFill instead of absoluteFillObject, altering what value is exposed through the public StyleSheet API.
Box shadow color stringification packages/unistyles/src/web/convert/object/boxShadow.ts	createBoxShadowValue now coerces the color component to string using String() for consistent web rendering.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~12 minutes

Possibly related PRs

• jpudysz/react-native-unistyles#1003: Similar updates to Expo example app configuration and dependencies from an earlier version bump cycle.
• jpudysz/react-native-unistyles#1138: Related changes to example app React Native tooling dependencies and build configuration.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the main changes: upgrading the Expo example to SDK 56 and React Native to 0.85.3, which are the primary updates reflected across multiple package.json files and configuration changes.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

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• Commit unit tests in branch feature/upgrade

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