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Vaadin 14.5.0.beta1
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pre-release3 years ago

Vaadin 14.5.0.beta1

Vaadin consists of a set of web components, a Java web framework, configurable themes, tools and a set of app templates.

Visit vaadin.com to get started.

Support

Vaadin 14 is an LTS (long term support) version, which will be supported for 5 years after the GA (general availability) release. More details of our release model are available on our roadmap page.

Vaadin also provides commercial support and warranty.

New and Noteworthy Since 14.4

Flow

  • LitTemplate support
    Using LitTemplate is recommended over deprecated PolymerTemplate for doing layouts with HTML and UI logic in Java. It is recommended to use TypeScript for the template and this has been updated to the examples in the documentation. Starting from Vaadin 18, the initial attribute values in the template are reflected to the server side state when @Id mapping components. This applies to PolymerTemplate too. More information on the template support in the blog.

  • Better URL parameter support for routing

  • Breaking Changes:

    • Support current pnpm versions.
      If you are using pnpm (instead of default npm), starting from version 2.5 the Flow build will automatically update the pnpm to a newer version. In case you've installed the pnpm version manually on your system and the automatic update fails, the build will fail with a clear message telling you to update to a newer version of pnpm.

      • Supported version of pnpm is upgraded to 5.0 (previously was 4.4)
      • Default pnpm version is upgraded to 5.15.1 (previously was 4.5.0)

      Remove pnpm-lock.yaml when package.json dependencies are updated to work around pnpm/pnpm#2587. Invoke pnpm via npx instead of relying on global installation or installing into ~/.vaadin/node_modules.

    • Make VaadinService.dependencyFilters unmodifiable
      While the change is backwards compatible from API perspective, it could be considered a behavior change although there is quite low risk of exposure in apps. Thus targeting 2.5 for the LTS and the recently released 5.0.

Components

Vaadin Avatar

Avatar and AvatarGroup components. Being able to show users with name, abbreviations and image. AvatarGroup is a collection of Avatars with the possibility to truncate it to a certain number of visible avatars. Used in Collaboration Engine.

Included Projects and Change Log

Vaadin includes the following projects. Release notes with detailed change logs for each project are linked below.

Projects marked as (Pro) are available for users with Pro or Prime subscriptions. Everything else is free and open source.

Components

To simplify the version schema, since Vaadin 14.5, all listed components' flow integration versions are following the Vaadin version, e.g. Vaadin Button's flow integration version in this release is 14.5.0.beta1.

Themes

  • Vaadin Lumo theme (v1.6.1)
  • Vaadin Material theme (v1.3.2).

Java Web Framework

Tools

Getting Started with Vaadin 14

App starters

The best way to get started with Vaadin 14 is to go to https://vaadin.com/start and pick an app template for the technology stack you’re interested in.

Manually changing Vaadin version for Java projects

Add the following contents to your project pom.xml. 

<dependencyManagement>
    ...
    <dependency>
        <groupId>com.vaadin</groupId>
        <artifactId>vaadin-bom</artifactId>
        <version>14.5.0.beta1</version>
        <type>pom</type>
        <scope>import</scope>
    </dependency>
    ...
</dependencyManagement>
<repositories>
    <repository>
        <id>vaadin-prerelease</id>
        <url>https://maven.vaadin.com/vaadin-prereleases</url>
    </repository>
</repositories>
<pluginRepositories>
    <pluginRepository>
        <id>vaadin-prerelease</id>
        <url>https://maven.vaadin.com/vaadin-prereleases</url>
    </pluginRepository>
</pluginRepositories>

Known Issues and Limitations

This is the prerelease version of Vaadin 14.x for evaluating a number of new features and bug fixes. The API in this prerelease version is not considered final and may change based on user feedback.

OSGi support

  • OSGi feature is not supported under npm mode for the current Vaadin 14 versions, we are looking forward to fixing this in a near future.
  • OSGi feature is supported under bower mode, issues can be found from HERE

Flow

  • The Template-in-Template feature has some limitations
  • There are some issues in using Web Sockets as the Push channel in certain OSGi environments, but long polling works.

Components

  • The dark theme preset does not work in IE11 when applied to the <html> element.

Migrating from Vaadin 8

See the migration guide

Migrating from Vaadin 10-13

See the migration guide

Reporting Issues

We appreciate if you try to find the most relevant repository to report the issue in. If it is not obvious which project to add issues to, you are always welcome to report any issue at https://github.com/vaadin/platform/issues.

A few rules of thumb will help you and us in finding the correct repository for the issue:

  1. Bug tickets and enhancement requests that are specific to a certain Vaadin component should be posted in the component's Web Component repostory (e.g. https://github.com/vaadin/vaadin-button for Button).
  2. Issues that are not component-specific (e.g. requests for new components) or encompass multiple components should be posted in vaadin-flow-components repository.
  3. If you encounter an issue with Flow which does not seem to be related to a specific component, the problem is likely in Flow itself. The Flow repository is https://github.com/vaadin/flow
  4. If you encounter an issue with Designer, the repository is https://github.com/vaadin/designer
  5. If you encounter an issue with TestBench, the repository is https://github.com/vaadin/testbench
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