[test] bust ios-core cache to validate hermes-compiler@latest-v1

Temporary no-op change to force a fresh Hermes download in the ios-core
prebuild so we can exercise the newly published hermes-compiler@latest-v1
end-to-end in CI. Do not merge.

Author: cipolleschi

packages/react-native/ReactCommon/jsi/CMakeLists.txt

@@ -24,3 +24,10 @@ target_link_libraries(jsi
 
 target_compile_reactnative_options(jsi PRIVATE)
 target_compile_options(jsi PRIVATE -O3 -Wno-unused-lambda-capture)
+
+# Enable the in-development JSI features (e.g. jsi::Serialized / ISerialization)
+# that are gated behind JSI_UNSTABLE. This must match how the Hermes prebuilt was
+# built: a Hermes compiled with JSI_UNSTABLE references these JSI symbols, so JSI
+# must export them or libhermesvm.so fails to load at runtime. PUBLIC so consumers
+# that include jsi.h see the same declarations (consistent ABI).
+target_compile_definitions(jsi PUBLIC JSI_UNSTABLE)

packages/react-native/package.json

@@ -150,7 +150,7 @@
     "base64-js": "^1.5.1",
     "commander": "^12.0.0",
     "flow-enums-runtime": "^0.0.6",
-    "hermes-compiler": "0.0.0",
+    "hermes-compiler": "260318099.0.0",
     "invariant": "^2.2.4",
     "memoize-one": "^5.0.0",
     "metro-runtime": "^0.86.0",

packages/react-native/scripts/ios-prebuild/hermes.js

@@ -8,6 +8,9 @@
  * @format
  */
 
+// CI test: bust the ios-core prebuild cache to force a fresh Hermes download
+// so we validate the newly published hermes-compiler@latest-v1 end-to-end.
+
 const {createLogger} = require('./utils');
 const {execSync} = require('child_process');
 const fs = require('fs');

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

@@ -1 +1 @@
-HERMES_VERSION_NAME=250829098.0.15
+HERMES_VERSION_NAME=260318099.0.0