Comment From: JavaLionLi

I adapted according to the submission records of version 3.3 and did not find any issues

Comment From: bclozel

Duplicates #38819

Comment From: JavaLionLi

I just want to know why there is no support for 3.2, but instead support was provided in 3.3. Is there any downside

Comment From: bclozel

We just didn't get to it in time for 3.2 and got it done for 3.3.

Comment From: mhalbritter

I just want to know why there is no support for 3.2, but instead support was provided in 3.3. Is there any downside

We don't add enhancements in maintenance releases of Spring Boot. As 3.2.0 didn't have that feature, new enhancements will go into 3.3.

If you need this feature in 3.2, you can add this bean yourself:

@Bean
public UndertowDeploymentInfoCustomizer undertowDeploymentInfoCustomizer() {
 return deploymentInfo -> deploymentInfo.setExecutor(Executors.newVirtualThreadPerTaskExecutor());
}