Welcome to another installment of This Week in Spring! I hope your holiday and new year was awesome! It's the beginning of a new year (I almost typed "2014"!), and we've got a lot of great stuff coming this year! Let's see what the internet has been doing this last week in the Spring community.

• Our friend Petri Kainulainen is back, and he's completely revamped his Spring Data JPA CRUD tutorial! Check it out! We've linked to it before in this roundup, but it's always worth re-reading!
• I really like this post that looks at introducing multitenancy into an application in terms of a JHipster-based sample.
• Inforworld has an interesting post, Why 2015 will be the year of the micro service
• Our pals in Spain are putting on their Spring IO (the conference) conference again this year! It's shaping up to be a really great show, and I can tell you nobody works harder for the community than these guys. If you're in the region, I hope you'll consider it!
• Meanwhile, over on the Codeleak.pl blog, there is a great introduction to using Jersey and Spring Boot 1.2
• ...and a followup post on on how to build a HATEOAS API with Spring Boot 1.2 and Jersey
• Marcin Grzejszczak has put together a nice introduction to some of his company's open-source tools for supporting microservices using Spring (and Spring Boot). Here's his first post. I haven't explored everything, but it looks like an interesting read!
• This is a new video that shows how to use the Spring Security XML namespace to secure a (in this case JAX-RS-based) REST service
• I think this is a Korean-language video on writing a unit-test for MyBatis. I don't know why, yet, but I enjoy watching people iterate. Sometimes a (moving picture) is worth a thousand words.
• I think this is a Bengali-language video on how to get started with Spring Boot. Either way, the video speaks for itself!

Also, this post marks 4 years of writing "This Week in Spring"! Thanks everybody for the years of great content for me to read and thanks to all those who have sent in suggestions on Twitter or by email. Thanks, and keep it up, Spring community, you're amazing!