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A series of posts showcasing the new features introduced by each Symfony version.

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Symfony 3.4 adds a new CoverageListener to the PHPUnit Bridge component to create more precise code coverage reports.
September 27, 2017 #Living on the edge
Symfony 3.4 introduces a new (optional) PHP-based configuration format to define routes and services using a fluent interface.
September 26, 2017 #Living on the edge
Symfony 3.4 allows to define the data type of the value stored in environment variables and also defines some operators to transform their values before using them.
September 22, 2017 #Living on the edge
In Symfony 3.4, comparison constraints can get the value of any other property without having to define a full expression.
September 21, 2017 #Living on the edge
In Symfony 3.4, the MicroKernel trait can subscribe to events and handle them using methods defined in the kernel class.
September 20, 2017 #Living on the edge
In Symfony 3.4, configuration options can be deprecated more easily to warn users about future changes.
September 19, 2017 #Living on the edge
Symfony 3.4 will include support for HTTP Immutable Responses thanks to the new immutable option of the Cache-Control directive.
September 18, 2017 #Living on the edge
Symfony 3.4 adds support for validation groups in the Valid constraint, so you can partially validate the embedded objects.
September 15, 2017 #Living on the edge
Symfony 3.4 improves the exceptions displayed in the console to include by default the exact file and line number where the exception occurred.
September 14, 2017 #Living on the edge
Symfony 3.4 improves the user impersonation feature of the Symfony component to make it easier to debug.
September 13, 2017 #Living on the edge