Greetings Spring community,

There has been a lot of buzz in the past six months over Spring 5 and Reactive Streams support. I personally witnessed the number of questions Rossen received during his Reactive Spring MVC talk at DevNexus back in March. And his reactive talk at Spring I/O conference more recently was VERY popular to attenders.

Based on the huge leaps and bounds Project Reactor has made in the past two years, we are taking two of our guides down:

• Creating an Asynchronous, Event-Driven Application with Reactor

• Uploading pictures with Reactor

Those guides are over two years old…

This article will explain in depth how to tackle issues related to database compatibility and the deployment process. We will present what can happen with your production applications if you try to perform such a deployment unprepared. We will then walk through the steps in the lifecycle of an application that are necessary to have zero downtime. The result of our operations will be applying a backward incompatible database change in a backward compatible way.

If you want to work through the code samples below, you will find everything you need in GitHub.

Introduction

Zero downtime deployment

What is this mythical zero downtime deployment? You can say that your application is deployed that way if you can successfully introduce a new version of your application to production without making the user see that the application went down in the meantime. From the user’s and the company’s point of view it’s the best possible scenario of deployment since new features can be introduced…

Welcome to another installment of This Week in Spring! This last week was a bit crazy, though after a long restful weekend there's a lot of intersting content to invigorate us for the week ahead. I'll be speaking at a meetup on the 16th June, for those near Amsterdam that'd care to join us! As usual, we've got a lot to cover so let's get into it.

• Remember, the goal of microservices is, ultimately, to go faster and to get to production. To do continuous delivery. A huge part of that has to be moving code from integration and testing to production, automatically, and ideally with no downtime. I'd recommend this excellent blog by Spring Cloud team member Marcin Grzejszczak on zero-dotime deployments with a database. This is an excellent resource!
• speaking of micrservices and Spring, there's a neat introduction to doing microservices "Spring Boot way" (is there any other way? :D) on DZone by Santosh Singh
• want to learn more about Kotlin and Spring? Want to see why large organizations (like Netflix) are using Spring Cloud along with Kotlin? check our Spring team member Sébastien Deleuze's spring-kotlin…

Welcome to another installation of This Week in Spring! This week's already off to a crazy start. Sunday evening I returned from Kiev, Ukraine, where I spoke at JEEConf. Yesterday, Monday, I gave a talk with my friend Baruch from JFrog at yesterday's JFrog Swampup conference event in Napa, California. Today I'm off to Denver, Colorado for Gluecon, and then off to GOTO Chicago in Chicago, Illinois and I'll finish out the week in Washington DC for customer visits. I can't wait to see you all along the way!

• I hope you'll register for this upcoming webinar on distributed tracing with the Spring Cloud team's very own Adrian Cole and Marcin Grzejszczak
• Wow! Spring Roo 2.0M2 is packed with lots of cool looking features supporting Spring Boot and removing the older ActiveRecord-style support in favor of proper Spring Data repositories
• I really liked Stormpath founder and CTO Les Hazlewood's post on how they moved their entire backend API to Spring Boot in a matter of three weeks while embracing Spring Boot's autoconfiguration to solve a few problems of their own, like a Samza auto-configuration.
• the Udemy Spring Cloud workshop online looks pretty cool…

Welcome to another installment of This Week in Spring! As I write this, I'm in Chennai, India, en route to Bangalore, India for a day of exciting customer meetings and then I'm off to sunny Barcelona, Spain, for the epic Spring IO event! Then, this Friday, I'm off to Kiev, Ukraine, for JEEConf. If you're around, as always, don't be shy and say hi!. That said, let's get into it!

• The BIG news: Spring Cloud Brixton is now available! Get the bits from the Spring Initializr. If you'll permit a little back-patting, I submit that you might get a good feel for what concerns a technology like Spring Cloud addresses by reading this article I wrote and you'll learn how Spring Boot and Spring Cloud are used in this video. That said, grab the bits and go!
• Spring Cloud Stream 1.0.0 is here, at long last! Spring Cloud stream makes it simple to build collaborating messaging-based microservices.
• Spring Boot co-lead Phil Webb just announced that Spring Boot 1.4.0.M3 is now available, just in time…

Auntie Em! Time sure is flying! Welcome to another installment of This Week in Spring! This week I'm in Warsaw for a Cloud Native meetup and Krakow, Poland for the spectacular Geecon event! If you're around, don't hesitate to say hi for Also, some very big news coming! Stay tuned to the Spring.io blog tomorrow! Anyway, as usual, we've got a lot to look at so let's get to it!

• Spring Security lead Rob Winch just announced Spring Security 4.1.0 RELEASE! This is a big release with a lot of cool stuff!
• Spring IO Platform lead Andy Wilkinson just announced Spring IO Platform 2.0.4 release
• Spring AMQP and messaging guru Gary Russell just announced Spring AMQP 1.6.0 RC (and 1.5.6)
• Spring framework ninja Stéphane Nicoll just announced Spring Framework 4.3 RC2, 4.2.6 and 3.2.17 are now available
• not one to sit on his laurels, Stéphane also announced Spring Boot 1.3.5
• This blog has a really nice look at some of the players in the microservice ecosystem…

I can't even believe it's May already! STOP THE WORLD I WANT OFF! Well, at least the times are exciting! There's so much cool stuff to look at this week so let's get to it!

• New sessions are up on the shiny new SpringOne Platform website check it out! In addition to an Adrian Cockcroft keynote, we're got speakers booked from Netflix, Google, Comcast, Express Scripts, Kroger, along with Spring leaders like Juergen Hoeller, Dr. Dave Syer, Rossen Stoyanchev, Oliver Gierke, and of course, yours truly!
• and join Spring Cloud Data Flow leads Mark Fisher and Mark Pollack for a look at Data Driven Microservices with Spring Cloud Data Flow
• Spring Session and Spring Security lead Rob Winch has just announced Spring Session 1.2.0.RC3.
• Spring REST Docs lead …

As we've just shipped the GA release of Spring Data release train Hopper, let's take a deeper look at the changes and features that come with the 13 modules on the train. A very fundamental change in the release train's dependencies is the upgrade to Spring Framework 4.2 (currently 4.2.5) as baseline. This is in preparation for the upcoming 4.3 release of the framework. We also took the chance to upgrade our Querydsl integration to 4.x (currently 4.1) which required some breaking changes in very core abstractions. Besides that, Hopper contains quite a few significant major version changes its…

I am pleased to announce the release of Spring Data Geode 1.0.0.APACHE-GEODE-INCUBATING-M2, offering support for the recently announced Apache Geode 1.0.0-incubating.M2 release.

Spring Data Geode is a specific version of Spring Data GemFire with support for Apache Geode rather than Pivotal GemFire.

Both Spring Data GemFire and Spring Data Geode are based on the same source repository in GitHub, however, Apache Geode support lives in the apache-geode branch. Therefore, you won't find a separate Spring Data project specifically for Apache Geode, but this is of little consequence since your existing knowledge of Pivotal GemFire combined with Spring Data GemFire will be immediately useful and transferable to Apache Geode and Spring Data Geode…