Continuing our Road to GA series, this week we're exploring the modularization effort happening with Spring Boot 4.

When Spring Boot 1.0 was released in 2014, it shipped with a single spring-boot-autoconfigure jar weighing in at 182 KiB. Of course, that initial version didn't support a great deal, but over the years, that has changed.

One of Spring's greatest strengths is the sheer number of technologies that it supports, but each new technology brings a cost. Each time we support something new, the autoconfigure jar grows. With Spring Boot 3.5, that single spring-boot-autoconfigure jar is now…