Short answer:
run npx babel-upgrade
(then you can take a look in package.json to check what changed)
Long answer:
For RN 0.57.x after reading the babel and babel-upgrade docs I realized it was enough to have all the old babel dependencies inside devDependencies for my project:
"dependencies": {
.........
"react": "16.3.1",
"react-native": "0.55.4",
},
"devDependencies": {
"babel-plugin-transform-runtime": "^6.23.0",
"babel-preset-latest": "^6.24.1",
"babel-preset-stage-0": "^6.24.1",
"babel-register": "^6.24.1",
"react-native": "0.55.4",
"babel-eslint": "^8.2.2",
"babel-plugin-syntax-object-rest-spread": "^6.13.0",
"babel-plugin-transform-object-rest-spread": "^6.23.0",
"babel-preset-react-native": "^4.0.0",
"babel-preset-react-native-stage-0": "^1.0.1",
.....
},
1) I used npx and babel-upgrade (npx is already included in npm versions >= 5.2.0)
If you have older npm versions you have to install npx globally.
npx lets you run babel-upgrade without installing it locally.
2) I ran npx babel-upgrade ( without the --write option) to see how the upgrade will affect my package.json deps)
3) I ran npx babel-upgrade --write
4) I set RN version to 0.57.1 and changed the babel-preset dependency from "babel-preset-react-native": "^5", to "metro-react-native-babel-preset": "^0.45.0",and .babelrc configuration to:
{
"presets": ["module:metro-react-native-babel-preset"]
}
as written in the RN change log instructions.
Now package.json looks like this:
"dependencies": {
"react": "16.5.0",
"react-native": "0.57.1",
.......
}
"devDependencies": {
"@babel/core": "^7.0.0",
"@babel/plugin-proposal-class-properties": "^7.0.0",
"@babel/plugin-proposal-decorators": "^7.0.0",
"@babel/plugin-proposal-do-expressions": "^7.0.0",
"@babel/plugin-proposal-export-default-from": "^7.0.0",
"@babel/plugin-proposal-export-namespace-from": "^7.0.0",
"@babel/plugin-proposal-function-bind": "^7.0.0",
"@babel/plugin-proposal-function-sent": "^7.0.0",
"@babel/plugin-proposal-json-strings": "^7.0.0",
"@babel/plugin-proposal-logical-assignment-operators": "^7.0.0",
"@babel/plugin-proposal-nullish-coalescing-operator": "^7.0.0",
"@babel/plugin-proposal-numeric-separator": "^7.0.0",
"@babel/plugin-proposal-object-rest-spread": "^7.0.0",
"@babel/plugin-proposal-optional-chaining": "^7.0.0",
"@babel/plugin-proposal-pipeline-operator": "^7.0.0",
"@babel/plugin-proposal-throw-expressions": "^7.0.0",
"@babel/plugin-syntax-dynamic-import": "^7.0.0",
"@babel/plugin-syntax-import-meta": "^7.0.0",
"@babel/plugin-syntax-object-rest-spread": "^7.0.0",
"@babel/plugin-transform-runtime": "^7.0.0",
"@babel/preset-env": "^7.0.0",
"@babel/preset-flow": "^7.0.0",
"@babel/register": "^7.0.0",
"babel-core": "^7.0.0-bridge.0",
"babel-preset-react-native-stage-0": "^1.0.1",
.....
}
I am not sure if all the new dependencies added by gradle-upgrade are needed but the project builds and runs ok for both android and ios.
If you find a better solution or improvements for this babel update please add a comment or add a new answer, I will be happy to update my answer or accept a new better one.
Sources:
https://github.com/react-native-community/react-native-releases/blob/master/CHANGELOG.md#057
https://github.com/babel/babel-upgrade
For RN 0.58.6 I noticed I do not need so many babel deps. I noticed this creating a new project with a react-native init command.
My package.json file looks now like this:
{
"dependencies": {
"react": "16.6.3",
"react-native": "0.58.6",
// ....
},
"devDependencies": {
"@babel/core": "^7.0.0-0",
"babel-core": "^7.0.0-bridge.0",
"babel-eslint": "^10.0.1",
"babel-jest": "24.1.0",
"jest": "24.1.0",
"metro-react-native-babel-preset": "0.53.0",
"react-test-renderer": "16.6.3",
// ....
},
"jest": {
"preset": "react-native",
// ...
}
}
NOTE:
For IOS: I was able to build it in IOS without any react/react-native deps in pod file. I added/re-added those inside Linked Frameworks and Libraries section
