when i run spring init -b 2.0.9.RELEASE

Initializr service call failed using 'https://start.spring.io' - service returned : 'Invalid Spring Boot version '2.0.9.RELEASE', Spring Boot compatibility range is >=2.3.0.RELEASE'

What should I do to get the springboot version I want

Comment From: wilkinsona

You would have to run your own Spring Initializr instance that supports older version of Spring Boot. If you have any further questions, please follow up on Stack Overflow or Gitter. As mentioned in the guidelines for contributing, we prefer to use GitHub issues only for bugs and enhancements.