The new Certification Class of Learn Spring Security is out:


The 2015 Numbers

Spring 4 came out in December 2013 and it’s been slowly ramping up ever since.

In May 2015, I ran a survey that puts Spring 4 adoption at 65% and Spring Boot adoption at 34%.

The New 2016 Spring Numbers

Last week I just wrapped up a the new “Java and Spring in 2016” survey and received 2253 answers from the community.

In March of 2016, 81.1% of Spring users are using Spring 4 – so definitely a lot of growth since last years 65%:

The Spring Boot Numbers

Spring Boot is even more interesting, growing from 34% last year to 52.8%:


The new numbers are quite interesting, especially the Spring Boot ones which clearly show Boot reached critical mass as it broke the 50% mark.

Out of the full 2255 participants, 388 (17.2%) voted as not using Spring – but keep in mind that my audience is skewed towards Spring developers.

And of course Spring 5 is less than a year away and 4.3 is even closer – so things are going to be just as fast-paced in 2016.

Go deeper into Spring Security with the course: