Symfony 4.2.0 released

November 30, 2018 Fabien Potencier

Warning: Symfony 4.2 is no longer supported. Consider upgrading your applications to the most recent Symfony version.

Symfony 4.2.0 has just been released. Here is a list of the most important changes:

bug #29343 [Form] Handle all case variants of "nan" when parsing a number (@mwhudson, @xabbuh)
bug #29373 [Routing] fix trailing slash redirection (@nicolas-grekas)
bug #29355 [PropertyAccess] calculate cache keys for property setters depending on the value (@xabbuh)
bug #29369 [DI] fix combinatorial explosion when analyzing the service graph (@nicolas-grekas)
bug #29349 [Debug] workaround opcache bug mutating "$this" !?! (@nicolas-grekas)
bug #29344 Fixes sprintf(): Too few arguments in Translator (@stephanedelprat)
bug #29318 [Console] Move back root exception to stack trace in verbose mode (@chalasr)

Want to upgrade to this new release? Fortunately, because Symfony protects backwards-compatibility very closely, this should be quite easy. Read our upgrade documentation to learn more.

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Symfony 4.2.0 released symfony.com/index.php/blog/symfony-4-2-0-released

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Comments

Javier Eguiluz Certified said on Nov 30, 2018 at 09:50 #1

Please keep in mind that the changelog of this blog post is generated automatically and it only contains the changes since last version, which was Symfony 4.2.0 Release Candidate 1.

For the whole list of new Symfony 4.2 features, check https://symfony.com/blog/symfony-4-2-curated-new-features

Dimitri Gritsajuk Certified said on Nov 30, 2018 at 09:55 #2

Yeah! great work! cache, env, messenger

Massimiliano Arione said on Nov 30, 2018 at 10:12 #3

It looks like https://symfony.com/roadmap is not (yet) up to date

Daniel said on Nov 30, 2018 at 13:46 #4

Great, many thanks.

Eirik Alfstad Johansen said on Nov 30, 2018 at 17:58 #5

In this tweet (https://twitter.com/weaverryan/status/1059829826096427009) Ryan Weaver suggests making an addition to the composer.json file in order to improve performance. It seems like this line needs to be updated when upgrading to 4.2. Should this perhaps be documented somewhere?

Mathieu H said on Dec 2, 2018 at 10:22 #6

realeased but cannot install with composer :
composer create-project symfony/website-skeleton anothertest42 4.2
[InvalidArgumentException]
Could not find package symfony/website-skeleton with version 4.2.

H R Indika Aruna Kumara said on Dec 3, 2018 at 01:40 #7

Upgraded 4.1 to 4.2 . Its work fine .
Thanks for great work

Mathieu H said on Dec 6, 2018 at 15:37 #8

sorry it works fine for get the symfony 4.2 with composer, i was using a wrong command...

if i specify the version 4.2... composer cannot get the 4.2 version... :

wrong command :
> composer create-project symfony/website-skeleton test42 4.2

good command :
> composer create-project symfony/website-skeleton test42

mashuai said on Dec 15, 2018 at 08:42 #9

use function dd Notice: Undefined index: argv . why

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