I've worked a long time with Symfony 4.2 and I never had the need to update it in the last years.
But now I it seems to me that I have to update min. to version 4.4. because of an error in the maker-bundle which was seems to be fixed in a version that needs Symfony 4.4. (GitHub Issue)
So let's start:
In my existing Symfony Project my composer.json looking like this:
{
"type": "project",
"license": "proprietary",
"require": {
"php": "^7.1.3",
"ext-ctype": "*",
"ext-iconv": "*",
"api-platform/core": "2.1",
"doctrine/annotations": "^1.0",
"doctrine/doctrine-bundle": "^1.11",
"doctrine/doctrine-migrations-bundle": "^2.0",
"doctrine/orm": "^2.7",
"nelmio/cors-bundle": "^1.5 || ^2.0",
"phpdocumentor/reflection-docblock": "^3.0 || ^4.0 || ^5.0",
"sensio/framework-extra-bundle": "^5.2",
"symfony/apache-pack": "^1.0",
"symfony/asset": "4.2.*",
"symfony/console": "4.2.*",
"symfony/dotenv": "4.2.*",
"symfony/expression-language": "4.2.*",
"symfony/flex": "^1.1",
"symfony/framework-bundle": "4.2.*",
"symfony/security-bundle": "4.2.*",
"symfony/twig-bundle": "4.2.*",
"symfony/validator": "4.2.*",
"symfony/webpack-encore-bundle": "^1.7",
"symfony/yaml": "4.2.*"
},
"config": {
"preferred-install": {
"*": "dist"
},
"sort-packages": true,
"allow-plugins": {
"ocramius/package-versions": true,
"symfony/flex": true
}
},
"autoload": {
"psr-4": {
"App\\": "src/"
}
},
"autoload-dev": {
"psr-4": {
"App\\Tests\\": "tests/"
}
},
"replace": {
"paragonie/random_compat": "2.*",
"symfony/polyfill-ctype": "*",
"symfony/polyfill-iconv": "*",
"symfony/polyfill-php71": "*",
"symfony/polyfill-php70": "*",
"symfony/polyfill-php56": "*"
},
"scripts": {
"auto-scripts": {
"cache:clear": "symfony-cmd",
"assets:install %PUBLIC_DIR%": "symfony-cmd"
},
"post-install-cmd": [
"@auto-scripts"
],
"post-update-cmd": [
"@auto-scripts"
]
},
"conflict": {
"symfony/symfony": "*"
},
"extra": {
"symfony": {
"allow-contrib": false,
"require": "4.2.*"
}
},
"require-dev": {
"symfony/debug-bundle": "4.2.*",
"symfony/maker-bundle": "^1.35.0",
"symfony/monolog-bundle": "^3.0",
"symfony/stopwatch": "4.2.*",
"symfony/web-profiler-bundle": "4.2.*"
}
}
1. Step:
I changed all references of "symfony/..." with the version "4.2" inside to "4.4.*" ('*' is specify a wildcard. That means that the updates can be >= 4.4.0 and < 4.5 if I've understand that correctly) (composer docs)
2. Step:
I open a terminal and navigate to the directory where the Symfony-Project is lives in and run:
composer update symfony/* --with-all-dependencies
... and YES for my surprise it succeeded without any error message. This was much easier as I expected.
There is also a good tutorial for updating Symfony to version 4.4 on Symfonycast
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