Living on the Edge
A series of posts showcasing the new features introduced by each Symfony version.
Symfony 4.3 includes two new config options to configure the session ID length and the number of characters used to encode it.
In Symfony 4.3 Forms define three new config options to allow setting custom translation parameters for labels, help messages and attributes.
Symfony 4.3 adds a new Json constraint to validate that the given contents are valid JSON contents.
In Symfony 4.3, the PropertyAccess component will be between 20% to 30% faster, benefiting many other Symfony components which use it.
In Symfony 4.3, progress bars define a new iterate() method which starts, advances and finishes the progress bar automatically using an iterable variable.
In Symfony 4.3, the NotBlank validator defines a new config option to allow ignoring null values.
In Symfony 4.3 service aliases can be deprecated to ensure a smooth upgrade until you remove them.
In Symfony 4.3, the DomCrawler component has been improved to allow getting the name of the nodes and to allow defining a default value when extracting their text and HTML contents.
Symfony 4.3 adds new env var processors to allow defining default values for undefined env vars and to allow trimming their values.
In Symfony 4.3 there is a new option called "block_prefix" which simplifies the way form fields can be customized.
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