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This section covers all the new features introduced in Grails 7

=== Overview

Grails 7 is a major release that includes new features, improvements, and dependency upgrades.
This release focuses on enhancing the developer experience, improving performance, and ensuring compatibility with the latest technologies.

For detailed information on how to upgrade to Grails 7, including major dependency changes, please see the xref:upgrading#upgrading60x[Upgrading from Grails 6 to Grails 7] section.
Notable new features are included below.

=== External Configuration

The https://github.com/sbglasius/external-config[external configuration plugin] is now integrated into Grails.
See the xref:conf.adoc#externalConfiguration[Configuration] section for details.

=== Ubiquitous Containerized Browser Testing with Geb

The https://github.com/apache/grails-core/tree/HEAD/grails-geb#readme[Grails Geb Plugin] has received a significant update, introducing test fixtures that enable ubiquitous containerized browser testing.

This new approach is now the recommended way to write functional tests in Grails. However, the previous method using WebDriver binaries remains supported for backward compatibility.

==== Key Features

By extending your test classes with `ContainerGebSpec`, your tests will automatically leverage a containerized browser provided by https://java.testcontainers.org/[Testcontainers]. This setup eliminates the need for managing browser versions and ensures consistent test environments.

==== Requirements

To use `ContainerGebSpec`, ensure that you have a compatible container runtime installed. Supported options include:

- **Docker Desktop**
- **OrbStack** (macOS only)
- **Rancher Desktop**
- **Podman Desktop**
- **Colima** (macOS and Linux)

==== How It Works

Once a compatible container runtime is installed, no additional configuration is needed. Simply extend your test classes with `ContainerGebSpec` (instead of `GebSpec`), and the following will happen:

1. A container will be started automatically when you run your integration tests.
2. The container will be configured to launch a browser capable of accessing your application under test.

With this setup, you gain the benefits of containerized testing, such as isolation, reproducibility, and reduced setup complexity.

==== formActionSubmit tag

A new tag `formActionSubmit` has been added to replace `actionSubmit`.
Dispatching actions via a parameter name on a form submit will be removed in a future version of grails.
See ticket https://github.com/grails/grails-gsp/issues/551[#551] for details.

==== @Scaffold support for Controllers and Services

The `@Scaffold` annotation was added to customize scaffolding generation for controllers and services.

==== Bootstrap 5.3.3 support

Bootstrap 5.3.3 support.
Saffolding and Fields tags now optionally support boostrap classes.

==== Prioritization of AutoConfiguration over bean overriding.

The core dependencies of Grails are moving to using `@Configuration` to better integrate with the Spring Boot ecosystem.
Please note that this does mean that some beans are now initialized earlier in the application context lifecycle.

==== Significant Dependency Removals

With the removal of Micronaut, and the fixes to the asset pipeline plugin, Grails build sizes should now be significantly reduced.

==== g:form & CSRF protection

The `g:form` tag now automatically provides csrf protection when Spring Security CSRF is enabled.



