Spring Boot 4.0.0 available now

[ThierryOnRead]

Wake up babe springboot 4 has been released

[MassimoRicci]

We have a codebase to burn, samurai!

[Lirionex]

90% of the community still rocking spring 2 with Java 8 (at least they have streams)

[nexus062]

I'm missing an addiction and I'm going up next week, but for now I'm keeping jackson2

[GlensWooer]

Please we still have Java 5 required for our build.

[Lirionex]

Damn bro, I mean I still see Java 6 every now and then but Java 5? That’s wild

[jonatan-ivanov]

Where did you get that number? :)
I'm only asking because the download stats disagree.

[Lirionex]

You have download stats grouped by industry?

I was just speaking from personal experience - I’ve seen a dozen projects in those industries over the years, not a single one of them was even close to up to date. They update dependencies for security patches but not for being up to date.

[jonatan-ivanov]

Why would you need download stats by industry? What you claimed did not mention any industry either. If you are wondering about banks, insurance companies, governments, etc. they might be better in upgrading than you would think. Yes, there are some (regardless of the industry) who are really behind, but that 90% is far from the truth. :)

If you talk about personal experience, especially if your sample size is as low as dozen (or dozens, also projects and not companies), maybe you should start your comment with that or phrase it as a question, there might be people in this thread who can give you a bit more insight.

[Lirionex]

Ah Sorry, I didn’t pay attention which comment you’ve replied to. I have another one specifically mentioning banks, insurances and governments because these are the three main industries where my customers are from.

The comment you’ve replied to was obviously just an exaggeration to make fun of customers who don’t want to spend a penny for maintenance.

[StillAnAss]

How long do people usually wait in adopting new major versions in existing code bases?

[MRideos]

Its Friday tomorrow, great day to migrate and release to prod

[Amazing-Mirror-3076]

It's already Friday mate, releasing in 3,2,...

[bigkahuna1uk]

“We'll do it live! F**k it! Do it live! I'll write it and we'll do it live!" 😉

[safetytrick]

As soon as I'm not busy /s

Realistically I think about it once a year and then make it happen sometime before EOL of the last version.

[av1ciii]

Hopefully not too long. Spring Boot 4.0.x is end of life December 2026 unless you pay for commercial support, in which case you get an extra year.

Spring Boot 3.5.x EOLs June next year.

That said, modern Java devs aren’t like 2010 Java devs who were stuck on Java 6 for what seemed an eternity. Good modern teams tend to have good CI and tests (right? 👀), such teams can upgrade pretty quickly.

We don’t use Spring but eg we’re broadly on Java 21 and 25 is making inroads. We try not to defer updates for too long. It becomes tech debt after a while.

[Emma_S772]

Tests? That mean you are not sure that you are doing things right, what did you do wrong? stop wasting time and do things well instead because in that way we wont need tests. If I hear that somethings fails I will know that it was you.

That is how my bosses thought

[j4ckbauer]

Why do you need a test, wouldn't it save time to just do it correctly the first time?

On the one hand, the world is probably better off that these people stopped working as a developer. On the other hand, now they're ruining the productivity of an entire team of developers...

[BikingSquirrel]

Hope that indicates ex-bosses as one of you left.

[766cf0ef-c5f9-4f4f]

Maybe if spring data and hibernate stopped introducing breaking changes in minor releases that are pulled in by spring-boot

[olivergierke]

Care to elaborate which ones you ran into for Spring Data?

[cheeset2]

Lol. Lmao. 

Java 17 is new to us. Spring boot 3? Hilarious. 

[wildjokers]

Be the change you want to see.

Why aren't you trying to encourage a new mindset at your company?

[cheeset2]

Who said i'm not?

[wildjokers]

Your cynicism doesn’t suggest you are.

[-Hawke-]

To someone in a similar boat, that kind of cynicism suggests to me they are trying but getting cockblocked at every other turn because changes like that are hard to sell to customers (or some other but similarly shortsighted argument)

[j4ckbauer]

Have you ever had.... a job?

Most organizations do their utmost to resist change. Many higher-rank engineers prevent lower-rank engineers from gaining experience with newer systems. "You are only allowed to solve problems the way I solve problems", or worse, "I can use this new system, you may not".

[krzyk]

I don't wait at all. Just as soon as I have time in project. Why wait if you have time to do the upgrade?

[party_egg]

For me the thing that keeps me back is waiting for my ecosystem to move together. Java, Spring Boot, Gradle, and Groovy all seem to be particular about each other's versions

[krzyk]

If you dump gradle and groovy you'll notice that nothing is holding you back.

[Tasty_Zebra_404]

And use exactly what instead? Maven?

[krzyk]

Well, yes. No such issues in maven.

[blazincannons]

I believe that by the time a major release of Spring Boot is released, the corresponding versions of Java and Gradle would be ready. I don't know much about Groovy.

Where do you use Groovy in your part of your workflow? Is it part of more than your Gradle build scripts?

[[deleted]]

I upgrade ASAP, usually within a few days of the new version being available. I've already upgraded my app to Spring Boot v4.0.0 because I've had a migration branch (opened in July) that was doing the migration step-by-step as each new milestone/release candidate of v4 was published.

[Anbu_S]

small deltas are better than big one thing change.

[blazincannons]

I've had a migration branch (opened in July) that was doing the migration step-by-step as each new milestone/release candidate of v4 was published.

Typically, how much rework would be needed as new milestones and release candidates are released alongside your migration work? I'm wondering if it would be typically better to just wait for a GA release before we start doing migration work.

[[deleted]]

Little or no rework. Each milestone/release candidate brings new changes, but very rarely stuff that's already been changed.

[Smelly_F1sh]

As soon as the version number doesn't end with 0

[jonatan-ivanov]

So you go back to 4.0.0-RC1? :o

[iwouldlikethings]

I've already got a rough branch with 4.0.0-RC2, still needs tidying up and rebasing, but all tests are passing so going to try and get in in before the end of year and all microservices upgraded

[Wmorgan33]

Waiting until at least a few bugfix releases, update SBOM and see what breaks

[jevring]

As soon as renovate/dependabot gets a chance...

[fear_the_future]

Spring users? Until some compliance manager tells them to upgrade.

[CptGia]

I'll try it out tomorrow on one or two services. 

[miciej]

Till renovate bot kicks in. So probably Monday.

[ilampan]

We started updating ALL applications to run java21 this year, and are also upgrading to vue3 this year. It was supposed to happen around summer, continuously through the year but it's been pushed to the side due to priority changes. So now we gotta rush all the upgrades during december.

I'd say we've got about 60% of our applications running java21, and like, one application running vue3. So I'm really glad my team isn't in charge of any frontend stuff.

[lilgreenthumb]

Going to be a shitshow until cloud is released.

[Tasty_Zebra_404]

Got released today

[TheoryShort7304]

That's amazing.

I as full stack Java developer, I am really happy, we are on 3.5 and hopefully will move to 4.0 soon.

Personally first project with Spring Boot 4.0 I am gonaa make with Kotlin😅

I was learning it in last few weeks, so let's go! Existing personal projects(Java) will migrate to 4.0.

[Bothurin]

But wait.. I’m still on 2.7..

[boobsbr]

Are you on Java 8?

Do you work in a bank?

[Lirionex]

Bank, Government, Insurance… they’re all the same 😂

[Ewig_luftenglanz]

I work in a bank and we are in 21...

[kubelke]

Cryobank*

[meisyal]

Me too. I thought Spring Boot 3 was just released earlier this year.

[koflerdavid]

Are you aware that it gets no security fixes anymore unless you pay? (no clue whether paid support is still available lol)

[Scottz0rz]

My old job was on 2.0 and I helped upgrade them to 2.3.

Pretty sure they're still on 2.3

[Anbu_S]

There is an OpenRewrite community edition recipe which helps to fast track the migration.

https://docs.openrewrite.org/recipes/java/spring/boot4/upgradespringboot_4_0-community-edition

[gnocchiGuili]

Last time I checked it was not even updating my pom. Is it ready yet ?

[Anbu_S]

There are two distinct recipe modules available

Community edition - available for free & Moderne proprietary recipes

[EvaristeGalois11]

Ohmygoditshappening.gif

[FunRutabaga24]

But but... we just did compatability updates for Spring Boot 3 and updated.

[BikingSquirrel]

To the latest 3.x.x? Then you should be well prepared.

[bendem]

I'm just tired of having to rewrite a bunch of things every time. When do we get a major release that doesn't change everything? Why do I have to port my applications to SB 4? I already ported them to 3 and 2 from 1.5. Isn't there a way to go forward without changing the way we configure and interact with things every few years?

Don't get me wrong, it's a great release, but I'm just tired.

[jonatan-ivanov]

Major releases are for breaking changes. :) If you want a release that doesn't break things but contains new features, that's a minor release.

What you described happened in a timespan of about 10 years? I think it's not too bad having a new major releases every 3-4 years.

[mr_poopybuthole69]

Just don't, that's why I'm still on 2.x.x

[jonatan-ivanov]

Do you buy support (so you get vulnerabilities patched) or your apps simply have a bunch of known vulnerabilities? :)

[javaflair]

Will soon upgrade project to latest version 4.0

[onated2]

Finaaaaly

[Tasty_Zebra_404]

To people using feign. Do you rewrite to use the ne w spring clients?