# 1.0.0 -> 2.0.0 The option `nodeFlags` was renamed to `v8flags` for accuracy. It can now be a callback taking method that yields an array of flags, **or** an array literal. # 0.11 -> 0.12 For the environment passed into the `launch` callback, `configNameRegex` has been renamed to `configNameSearch`. It now returns an array of valid config names instead of a regular expression. # 0.10 -> 0.11 The method signature for `launch` was changed in this version of Liftoff. You must now provide your own options parser and pass your desired params directly into `launch` as the first argument. The second argument is now the invocation callback that starts your application. To replicate the default functionality of 0.10, use the following: ```js const Liftoff = require('liftoff'); const MyApp = new Liftoff({name:'myapp'}); const argv = require('minimist')(process.argv.slice(2)); const invoke = function (env) { console.log('my environment is:', env); console.log('my cli options are:', argv); console.log('my liftoff config is:', this); }; MyApp.launch({ cwd: argv.cwd, configPath: argv.myappfile, require: argv.require, completion: argv.completion }, invoke); ```