Java 21 now required to build Quarkus main

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Guillaume Smet

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Jul 22, 2026, 11:44:29 AM (yesterday) Jul 22
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Hi,

Java 21 is now required to build Quarkus' main branch. It's going to be the minimum Java version for Quarkus 4.

There will be a proper announcement at the end of August but I thought it might be a good idea to mention it on the dev list.

There might be some workflows to update, especially everything that builds Quarkus main such as Ecosystem CI.

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Guillaume

Georgios Andrianakis

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Jul 22, 2026, 12:56:45 PM (yesterday) Jul 22
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Excellent!

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