46 lines
2.3 KiB
Markdown
46 lines
2.3 KiB
Markdown
---
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title: Vaadin 8 UI discontinuation
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parent: Blog
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weight: 99
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---
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In this article, we want to give an overview of the future of the hawkBit UI
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## hawkBit Vaadin 8 UI discontinuation
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The hawkBit UI uses Vaadin as a web UI framework. It uses Vaadin 8 (8.14.3). This major version,
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according [Vaadin Roadmap](https://vaadin.com/roadmap), has no free support since 21st Feb 2022. There are some version
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releases after that date (8.15.0 - 8.16.0) that are Apache 2.0 licensed. However, since
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8.16.1 ([see here](https://mvnrepository.com/artifact/com.vaadin/vaadin-server)) the license
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is [Commercial Vaadin Developer License 4.0](https://vaadin.com/license/cvdl-4.0), so they could not be used in hawkBit.
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We believe it is not a good practice to keep an out of free support library in an open source project like hawkBit. And
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moreover, even if we keep it, if a security vulnerability is discovered - all users shall opt for commercial support or
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to drop UI.
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There is another critical obstacle with keeping Vaadin 8 UI. At the moment hawkBit uses Spring Boot 2.7. According
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to [Spring Boot EOL](https://endoflife.date/spring-boot) Spring Boot 2.7 stream will reach end of support 24th Nov 2023.
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So, hawkBit shall be migrated to Spring Boot 3.0+. Since Vaadin 8 seem to be incompatible with Spring Boot 3 (they added
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support for Spring Boot 3 in Vaadin
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24 ([Vaadin 24 pre release](https://vaadin.com/blog/vaadin-24-pre-release-available-for-spring-boot-3.0)) we shall drop
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Vaadin UI 8 anyway.
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Many months ago we asked for community help to migrate hawkBit UI to newer Vaadin
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versions - [Urgent migration needed to a newer Vaadin version
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](https://github.com/eclipse-hawkbit/hawkbit/issues/1376) and gitter channel. However, there was no volunteer found to
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do the migration.
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All this being said, unfortunately, we've come to the decision to drop the Vaadin 8 UI from the Eclipse hawkBit and the
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latest hawkBit release 0.3.0 is the last version of hawkBit that includes it. For the next 0.4.0 release we plan to
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remove this Vaadin 8 UI. Thus the hawkBit may become an UI-less project.
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There were steps taken to mitigate the problem:
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* extending the REST API
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* introducing Swagger UI which allow easier use of the REST API
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however, the user experience will become much worse.
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We hope to see future contributions with migration of the UI or, why not, even new generation UI!
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