This week Symfony started working on stabilizing the new features introduced for Symfony 3.3, specially the ones related to autowiring. Symfony also added a new Kernel::getProjectDir() method to get the root directory of the project instead of the kernel directory. Lastly, the first blog posts about Symfony 4 were published, outlining the future of the Symfony project.
In Symfony 3.3, it's easier to work with flash messages in templates. In addition, the session no longer starts automatically when checking if there are flash messages.
In Symfony 3.3, the Workflow component will include lots of useful new features.
In Symfony 3.3, the special SYMFONY__ environment variables have been deprecated and they will no longer work on Symfony 4.0. Use regular environment variables instead.
This week Symfony entered into the "feature freeze" period for the upcoming 3.3 version. This means that the development activity will slow down to focus on stabilizing the new features introduced in Symfony 3.3. Meanwhile, the SymfonyLive Paris 2017 conference took place this week with great success.
Symfony 3.3 adds a new command called "about" to display useful information about your Symfony application and your PHP environment.
Symfony 3.3 adds a new versioning strategy based on JSON file manifests, which is used by popular tools such as Webpack.