4.0.0 release is now available

4.0.0 is an unmaintained developer preview release that includes some backwards incompatible changes from the currently developed 4.0 development branch.

Please note, that 4.x series should be used only if your project is scheduled to go live after January 2020. You will have to continually upgrade to the next available 4.1.0-beta, 4.1.0-rc versions and ultimately upgrade to 4.1 LTS version prior to going live with the project.

All other projects should use 3.1 LTS, which is the latest stable version.

Majority of the bugfixes and some improvements from 4.0 branch have already been included in the last 3.1.x patch releases:

• 3.1.10 release notes (July 29, 2019)
• 3.1.9 release notes (July 2, 2019)
• 3.1.8 release notes (June 7, 2019)

We have also accepted and merged various contributions from Oro community developers and partners.

Technology updates in 4.0.0 release:

• Symfony 4:
  • We've upgraded Symfony dependency to version 4.2
  • The next preview release will upgrade Symfony to version 4.3
  • The 4.1 LTS release in January 2020 will include Symfony 4.4 LTS dependency
• Please check the Symfony documentation, Symfony upgrade recommendation and Oro changelogs before the upgrade:
  • https://symfony.com/doc/current/setup/upgrade_major.html
  • https://github.com/symfony/symfony/blob/master/UPGRADE-4.0.md
  • https://github.com/symfony/symfony/blob/master/UPGRADE-4.1.md
  • https://github.com/symfony/symfony/blob/master/UPGRADE-4.2.md
  • CHANGELOG.md
• Twig 2.9
• We have also updated various Javascript dependencies.

The full list of bug fixes included in this release is available in the wiki.