#Smarty 3 template engine ##Distribution repository > Smarty 3.1.28 introduces run time template inheritance > Read the NEW_FEATURES and INHERITANCE_RELEASE_NOTES file for recent extensions to Smarty 3.1 functionality Smarty versions 3.1.11 or later are now on github and can be installed with Composer. The "smarty/smarty" package will start at libs/.... subfolder. To get the latest stable version of Smarty 3.1 use ```json "require": { "smarty/smarty": "~3.1" } ``` in your composer.json file. To get the trunk version use ```json "require": { "smarty/smarty": "~3.1@dev" } ``` For a specific version use something like ```json "require": { "smarty/smarty": "3.1.19" } ``` PHPUnit test can be installed by corresponding composer entries like ```json "require": { "smarty/smarty-phpunit": "3.1.19" } ``` Similar applies for the lexer/parser generator ```json "require": { "smarty/smarty-lexer": "3.1.19" } ``` Or you could use ```json "require": { "smarty/smarty-dev": "3.1.19" } ``` Which is a wrapper to install all 3 packages Composer can also be used for Smarty2 versions 2.6.24 to 2.6.28