Merge branch '0.87-stable' into zeyap/hermesv1version-fix

Author: zeyap

.github/actions/test-ios-rntester/action.yml

@@ -27,6 +27,13 @@ inputs:
       config of the 2026-07-03 SocketRocket dual-copy regression).
     required: false
     default: auto
+  build-from-source:
+    description: >-
+      Force building ReactCore/ReactNativeDependencies from source, disabling the
+      prebuilt Maven fallback (RCT_USE_PREBUILT_RNCORE / RCT_USE_RN_DEP, which
+      otherwise default to '1'). Used by the from-source dynamic-frameworks lane.
+    required: false
+    default: false
 
 runs:
   using: composite
@@ -100,6 +107,17 @@ runs:
           export RCT_USE_LOCAL_RN_DEP="/tmp/third-party/ReactNativeDependencies${{ inputs.flavor }}.xcframework.tar.gz"
           export RCT_TESTONLY_RNCORE_TARBALL_PATH="/tmp/ReactCore/ReactCore${{ inputs.flavor }}.xcframework.tar.gz"
         fi
+        if [[ "${{ inputs.build-from-source }}" == "true" ]]; then
+          # Force building ReactCore/ReactNativeDependencies from source. Both
+          # RCT_USE_PREBUILT_RNCORE and RCT_USE_RN_DEP default to '1', so on a stable
+          # branch (where released Maven artifacts exist for the current version) the
+          # install would otherwise consume those prebuilts instead of building from
+          # source. That is wrong for the from-source dynamic-frameworks lane and also
+          # fails when a published artifact predates newer podspec layout changes
+          # (e.g. a React core tarball without ReactNativeHeaders.xcframework).
+          export RCT_USE_PREBUILT_RNCORE=0
+          export RCT_USE_RN_DEP=0
+        fi
 
         cd packages/rn-tester
 

.github/workflows/test-all.yml

@@ -136,6 +136,7 @@ jobs:
         with:
           flavor: ${{ matrix.flavor }}
           use-frameworks: true
+          build-from-source: true
           run-unit-tests: false # tests for dynamic frameworks are already run in the test_ios_rntester job; this is to just a test build from source (no prebuilds)
 
   test_ios_rntester:

packages/react-native/ReactAndroid/src/main/java/com/facebook/react/fabric/mounting/mountitems/SynchronousMountItem.kt

@@ -28,8 +28,14 @@ internal class SynchronousMountItem(private val reactTag: Int, private val props
   }
 
   override fun toString(): String {
-    val propsString = if (IS_DEVELOPMENT_ENVIRONMENT) props.toHashMap().toString() else "<hidden>"
-    return "SYNC UPDATE PROPS [$reactTag]: $propsString"
+    // NOTE: Intentionally written as an early return rather than assigning the result of an
+    // `if` expression to a local `val`. The latter shape triggers a crash in the Android lint
+    // K2 UAST analyzer (resolveSyntheticJavaPropertyAccessorCall) while resolving the local
+    // variable's `if`-expression initializer, failing `lintVitalAnalyzeRelease`.
+    if (!IS_DEVELOPMENT_ENVIRONMENT) {
+      return "SYNC UPDATE PROPS [$reactTag]: <hidden>"
+    }
+    return "SYNC UPDATE PROPS [$reactTag]: ${props.toHashMap()}"
   }
 
   override fun getSurfaceId(): Int = View.NO_ID

packages/react-native/package.json

@@ -160,7 +160,7 @@
     "base64-js": "^1.5.1",
     "commander": "^12.0.0",
     "flow-enums-runtime": "^0.0.6",
-    "hermes-compiler": "250829098.0.15",
+    "hermes-compiler": "250829098.0.16",
     "invariant": "^2.2.4",
     "memoize-one": "^5.0.0",
     "metro-runtime": "^0.87.0",

packages/react-native/sdks/.hermesv1version

@@ -1 +1 @@
-hermes-v250829098.0.16
+hermes-v250829098.0.16

packages/react-native/sdks/hermes-engine/version.properties

@@ -1 +1 @@
-HERMES_VERSION_NAME=250829098.0.13
+HERMES_VERSION_NAME=250829098.0.16