ci: check app dependency version alignment

[mrousavy]

The benchmark app's React Native CLI had drifted to 20.1.3 while the example used 20.2.0. Align the CLI declarations and lockfile, then check shared dependency declarations across the root, example and benchmark on every relevant PR. App-specific dependencies such as Harness remain allowed.

The lightweight workflow runs without installing dependencies or building either app. Include the benchmark in release version bumping so both apps also retain the root release version.

Rebased onto current main; this no longer depends on the old benchmark-app stack. Automated dependency grouping follows in a separate PR.

Validation: six checker tests, current manifest alignment, frozen Bun installation, formatting, actionlint and diff checks pass. The lockfile removes the duplicate CLI 20.1.3 dependency tree.

[vercel]

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Project	Deployment	Actions	Updated
nitro-docs	Ready	Preview	Sep 7, 2026 7:02pm UTC

[nitro-modules-bot]

Performance Report

⚠️ Advisory: Results do not fail this PR.

iOS

Benchmark	Before	After	Difference
JavaScript addNumbers()	23.3 ns	25.0 ns	🔴 +7.37% slower
C++ bounce(1 MiB)	252.2 ns	239.4 ns	🟢 -5.05% faster
C++ copy(1 MiB)	77.56 µs	83.49 µs	🔴 +7.65% slower
C++ copy(4 KiB)	1.23 µs	1.11 µs	🟢 -9.27% faster
C++ create()	436.9 ns	475.9 ns	🔴 +8.94% slower
C++ typed map (8 entries)	1.80 µs	1.89 µs	🔴 +5.48% slower
C++ addNumbers()	106.7 ns	89.4 ns	🟢 -16.24% faster
C++ simpleFunc()	70.6 ns	67.0 ns	🟢 -5.15% faster
C++ number property get/set	136.7 ns	147.4 ns	🔴 +7.84% slower
Swift copy(1 MiB)	79.71 µs	75.12 µs	🟢 -5.76% faster
Swift typed map (8 entries)	2.67 µs	2.52 µs	🟢 -5.5% faster
Swift deferred worker Promise (includes trigger call)	26.91 µs	28.60 µs	🔴 +6.29% slower
Swift short ASCII string	172.2 ns	160.8 ns	🟢 -6.6% faster

All Benchmarks

Benchmark	Before	After	Difference
C++ bounce(4 KiB)	250.4 ns	255.8 ns	🔴 +2.17% slower
C++ bounce native-owned buffer (1 MiB)	3.80 µs	3.92 µs	🔴 +3.27% slower
C++ bounce native-owned buffer (4 KiB)	387.7 ns	393.4 ns	🔴 +1.46% slower
C++ large array (1,024)	51.32 µs	52.75 µs	🔴 +2.8% slower
C++ small array (16)	979.5 ns	998.8 ns	🔴 +1.97% slower
C++ synchronousCallback()	212.4 ns	204.5 ns	🟢 -3.73% faster
C++ returnExisting()	220.3 ns	222.0 ns	🔴 +0.78% slower
C++ optional trailing string	157.5 ns	157.7 ns	🔴 +0.14% slower
C++ deferred worker Promise (includes trigger call)	25.40 µs	25.18 µs	🟢 -0.89% faster
C++ immediatePromise()	861.2 ns	859.4 ns	🟢 -0.2% faster
C++ short ASCII string	142.9 ns	144.1 ns	🔴 +0.84% slower
C++ Unicode string	294.0 ns	299.8 ns	🔴 +1.97% slower
C++ nested Car struct	2.59 µs	2.56 µs	🟢 -0.94% faster
C++ number | string variant	139.5 ns	137.1 ns	🟢 -1.67% faster
Swift bounce(1 MiB)	244.7 ns	249.0 ns	🔴 +1.76% slower
Swift bounce(4 KiB)	237.1 ns	245.8 ns	🔴 +3.65% slower
Swift bounce native-owned buffer (1 MiB)	3.85 µs	3.86 µs	🔴 +0.15% slower
Swift bounce native-owned buffer (4 KiB)	409.9 ns	408.7 ns	🟢 -0.29% faster
Swift copy(4 KiB)	1.13 µs	1.17 µs	🔴 +3.34% slower
Swift large array (1,024)	51.29 µs	50.63 µs	🟢 -1.29% faster
Swift small array (16)	1.05 µs	1.02 µs	🟢 -2.94% faster
Swift synchronousCallback()	238.2 ns	235.4 ns	🟢 -1.19% faster
Swift create()	26.89 µs	27.08 µs	🔴 +0.7% slower
Swift returnExisting()	241.0 ns	244.8 ns	🔴 +1.56% slower
Swift optional trailing string	168.6 ns	170.8 ns	🔴 +1.26% slower
Swift addNumbers()	76.9 ns	80.5 ns	🔴 +4.76% slower
Swift simpleFunc()	62.7 ns	61.7 ns	🟢 -1.65% faster
Swift immediatePromise()	1.42 µs	1.38 µs	🟢 -3.42% faster
Swift number property get/set	139.0 ns	145.1 ns	🔴 +4.36% slower
Swift Unicode string	349.3 ns	349.2 ns	🟢 -0.04% faster
Swift nested Car struct	2.68 µs	2.69 µs	🔴 +0.43% slower
Swift number | string variant	203.7 ns	202.1 ns	🟢 -0.8% faster
TurboModule addNumbers()	963.3 ns	957.9 ns	🟢 -0.56% faster

Android

Benchmark	Before	After	Difference
JavaScript addNumbers()	22.0 ns	20.4 ns	🟢 -7.48% faster
C++ bounce native-owned buffer (1 MiB)	3.04 µs	3.20 µs	🔴 +5.26% slower
C++ create()	452.4 ns	510.4 ns	🔴 +12.81% slower
C++ short ASCII string	122.1 ns	128.5 ns	🔴 +5.17% slower
Kotlin copy(4 KiB)	4.24 µs	3.98 µs	🟢 -6.15% faster
Kotlin synchronousCallback()	969.0 ns	1.05 µs	🔴 +7.89% slower
Kotlin create()	1.33 µs	1.62 µs	🔴 +21.98% slower
Kotlin typed map (8 entries)	5.81 µs	5.49 µs	🟢 -5.67% faster
Kotlin deferred worker Promise (includes trigger call)	32.83 µs	37.45 µs	🔴 +14.08% slower
Kotlin nested Car struct	3.92 µs	4.17 µs	🔴 +6.45% slower

All Benchmarks

Benchmark	Before	After	Difference
C++ bounce(1 MiB)	405.8 ns	386.9 ns	🟢 -4.66% faster
C++ bounce(4 KiB)	383.1 ns	397.1 ns	🔴 +3.66% slower
C++ bounce native-owned buffer (4 KiB)	391.8 ns	391.0 ns	🟢 -0.21% faster
C++ copy(1 MiB)	24.72 µs	24.39 µs	🟢 -1.32% faster
C++ copy(4 KiB)	689.4 ns	693.9 ns	🔴 +0.65% slower
C++ large array (1,024)	35.65 µs	34.59 µs	🟢 -2.99% faster
C++ small array (16)	736.3 ns	741.7 ns	🔴 +0.73% slower
C++ synchronousCallback()	270.2 ns	276.2 ns	🔴 +2.23% slower
C++ returnExisting()	200.5 ns	202.8 ns	🔴 +1.13% slower
C++ typed map (8 entries)	1.48 µs	1.47 µs	🟢 -0.54% faster
C++ optional trailing string	132.4 ns	135.6 ns	🔴 +2.37% slower
C++ addNumbers()	80.1 ns	83.2 ns	🔴 +3.85% slower
C++ simpleFunc()	66.5 ns	67.1 ns	🔴 +1% slower
C++ deferred worker Promise (includes trigger call)	20.02 µs	19.33 µs	🟢 -3.45% faster
C++ immediatePromise()	785.5 ns	822.6 ns	🔴 +4.72% slower
C++ number property get/set	145.9 ns	148.3 ns	🔴 +1.61% slower
C++ Unicode string	218.5 ns	221.5 ns	🔴 +1.4% slower
C++ nested Car struct	1.94 µs	1.89 µs	🟢 -2.76% faster
C++ number | string variant	118.2 ns	120.4 ns	🔴 +1.83% slower
Kotlin bounce(1 MiB)	920.9 ns	936.0 ns	🔴 +1.64% slower
Kotlin bounce(4 KiB)	947.1 ns	929.3 ns	🟢 -1.87% faster
Kotlin bounce native-owned buffer (1 MiB)	3.73 µs	3.81 µs	🔴 +2.08% slower
Kotlin bounce native-owned buffer (4 KiB)	1.04 µs	1.07 µs	🔴 +2.18% slower
Kotlin copy(1 MiB)	228.96 µs	225.94 µs	🟢 -1.32% faster
Kotlin large array (1,024)	38.77 µs	40.36 µs	🔴 +4.09% slower
Kotlin small array (16)	956.0 ns	938.5 ns	🟢 -1.83% faster
Kotlin returnExisting()	512.4 ns	514.4 ns	🔴 +0.38% slower
Kotlin optional trailing string	306.7 ns	305.5 ns	🟢 -0.39% faster
Kotlin addNumbers()	113.5 ns	113.1 ns	🟢 -0.34% faster
Kotlin simpleFunc()	88.3 ns	88.4 ns	🔴 +0.05% slower
Kotlin immediatePromise()	2.07 µs	2.04 µs	🟢 -1.54% faster
Kotlin number property get/set	208.4 ns	208.6 ns	🔴 +0.1% slower
Kotlin short ASCII string	408.4 ns	421.1 ns	🔴 +3.11% slower
Kotlin Unicode string	637.2 ns	659.3 ns	🔴 +3.46% slower
Kotlin number | string variant	361.4 ns	353.2 ns	🟢 -2.29% faster
TurboModule addNumbers()	202.5 ns	196.1 ns	🟢 -3.2% faster

Benchmarking Code Diff 2e815f49...b7c43d4c (view raw output)

Raw measurements: performance-report-1 (JSON artifact). Run 34153966168, attempt 1. Download requires GitHub access.

Android: measurements, attempt 1, apps, attempt 1.
iOS: measurements, attempt 1, apps, attempt 1.