This is what people always forgotten. How to update your cakephp to the latest from CLI phpmamp composer.phar update How to upgrade to 3.* branch phpmamp composer.phar require --update-with-dependencies "cakephp/cakephp:3.5.*" ./composer.json has been updated Loading composer repositories with package information Updating dependencies (including require-dev) - Removing cakephp/cakephp (3.4.13) - Installing cakephp/cakephp (3.5.6) Downloading: 100% Writing lock file Generating autoload files Done !
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