in composer.json was "drupal/core": "~8.5.1" and "webflo/drupal-core-require-dev": "~8.5.3" so composer update drupal/core webflo/drupal-core-require-dev --with-dependencies has updated all to last 8.5.x version -> 8.5.14
then I changed ~8.5.x to ~8.6.x in composer.json and ran composer update drupal/core webflo/drupal-core-require-dev --with-dependencies so drupal has been updated to last 8.6.x version. then drush updb (there was many updates) drush cr and drush cron. And it PASSED.
https://www.drupal.org/docs/8/update/update-core-via-composer
old composer.json:
{
"name": "drupal-composer/drupal-project",
"description": "Project template for Drupal 8 projects with composer",
"type": "project",
"license": "GPL-2.0-or-later",
"authors": [
{
"name": "",
"role": ""
}
],
"repositories": [
{
"type": "composer",
"url": "https://packages.drupal.org/8"
}
],
"require": {
"composer/installers": "^1.2",
"cweagans/composer-patches": "^1.6",
"drupal-composer/drupal-scaffold": "^2.2",
"drupal/console": "^1.0.2",
"drupal/core": "~8.5.1",
"drush/drush": "^9.2",
"vlucas/phpdotenv": "^2.4",
"webflo/drupal-finder": "^1.0.0",
"webmozart/path-util": "^2.3"
},
"require-dev": {
"webflo/drupal-core-require-dev": "~8.5.3"
},
"conflict": {
"drupal/drupal": "*"
},
"minimum-stability": "dev",
"prefer-stable": true,
"config": {
"sort-packages": true
},
"autoload": {
"classmap": [
"scripts/composer/ScriptHandler.php"
],
"files": ["load.environment.php"]
},
"scripts": {
"drupal-scaffold": "DrupalComposer\\DrupalScaffold\\Plugin::scaffold",
"pre-install-cmd": [
"DrupalProject\\composer\\ScriptHandler::checkComposerVersion"
],
"pre-update-cmd": [
"DrupalProject\\composer\\ScriptHandler::checkComposerVersion"
],
"post-install-cmd": [
"DrupalProject\\composer\\ScriptHandler::createRequiredFiles"
],
"post-update-cmd": [
"DrupalProject\\composer\\ScriptHandler::createRequiredFiles"
]
},
"extra": {
"installer-paths": {
"web/core": ["type:drupal-core"],
"web/libraries/{$name}": ["type:drupal-library"],
"web/modules/contrib/{$name}": ["type:drupal-module"],
"web/profiles/contrib/{$name}": ["type:drupal-profile"],
"web/themes/contrib/{$name}": ["type:drupal-theme"],
"drush/contrib/{$name}": ["type:drupal-drush"]
}
}
}