Welcome to another installment of This Week in Spring! This week I'm in Las Vegas at the mega EMC World event.

• Spring Security lead Rob Winch has just announced that Spring Security SAML 1.0.1 is now available
• Phillip Verheyden's talk offers a very pragmatic look athow to move Spring 3 application - including dependencies like Jackson and Hibernate - to take advantage of newer and new features in Spring 4.x.
• My pal Adib Saikali's SpringOne2GX 2014 talk on building a rich client backends with Spring is now up
• Don't miss this replay of Spring ninja Greg Turnquist's talk on debugging and maintaining Spring Boot applications
• Dustin Whittle's talk on how to performance testing (Spring) applications is filled with useful tools, tips-and-tricks for performance testing applications using Siege, Bees with Machine Guns, Google PageSpeed, WBench, and more.
• Don't miss our pal Marten Deinum's May 12th webinar on modernizing legacy Spring applications. I can't wait to listen to this one! Regular This Week in Spring readers know he almost always makes an appearance in our roundup!
• Spring Data ninja Thomas Risberg just announced Spring for Apache Hadoop 2.2 M1. The new release includes newer supported dependencies, better support for for Hiveserver2 including a batch tasklet, support for a batch tasklet to run Spark apps, Spring Boot-integration, smarter security integration, and integration with Spring Cloud components, and much more!
• The good Dr. Pollack just announced Spring XD 1.2 M1 (including a preview of the astonishing Spring Flo visual editor, improved Cassandra and Kafka integration, and much more) and 1.1.2 which contains bugfixes. I can't wait to see some of the stuff in Spring XD 1.2.M1.
• Spring Security lead Rob Winch just announced Spring LDAP 2.0.3.RELEASE, which is mainly a bugfix release.
• Check out Unicon's recently developed CAS-client auto-configuration for Spring Boot. CAS is a sort of single-sign on for the web. https://github.com/Unicon/cas-client-autoconfig-support
• Check out Sébastien Deleuze's talk from Spring I/O to learn more about Spring framework 4.2's upcoming support for isomorphic (scripted on both server and client) views using React.js and Handlebars.
• Check out this post to learn how to deploy a Spring Boot application to AWS using Elastic Beanstalk](http://mtdevuk.com/2015/02/10/how-to-deploy-a-spring-boot-application-to-amazon-aws-using-elastic-beanstalk/)
• Java Code Geek has a nice post aggregating the top Java libraries represented by imports in some 60,000+ libraries on GitHub. The numbers are very telling: Spring libraries feature the most frequently, taken together, and Spring Test, in particular, comes right after JUnit (ahead of the likes of Mockito!) in terms of popularity. I also like that many of the other non-Spring libaries represented are very often included a Spring Boot starter. Convenient!
• Check out the upcoming May 7th webinar on using Spring and Vaadin together if you're a Vaadin developer, you're going to want to know about Spring Boot!