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Stefano Cordio @scordio.github.io · 14d

📢 Jimfs JUnit Jupiter 1.0.0 is also released!

✨ Java 17 baseline
⬆️ Upgrade to JUnit 6
📖 Brand new user guide

🧑‍💻 Any feedback is welcome!

github.com/scordio/jimf...

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JUnit Team 💙💛 @junit.org · 15d

#JUnit 6.0.0 is released!

✨ Java 17 and Kotlin 2.2 baseline
🌄 JSpecify nullability annotations
🛫 Integrated JFR support
🚟 Kotlin suspend function support
🛑 Support for cancelling test execution
⏭️ New `--fail-fast` mode for ConsoleLauncher
🧹 Removal of deprecated APIs

docs.junit.org/6.0.0/releas...

JUnit Release Notes

docs.junit.org

2 75 120

JUnit Team 💙💛 @junit.org · 15d

#JUnit 5.14.0 is released!

🐞 Bug fixes and enhancements since 5.13.x
✈ Deprecations along with new APIs to ease migration to JUnit 6

docs.junit.org/5.14.0/relea...

JUnit 5 Release Notes

docs.junit.org

4 11

JUnit Team 💙💛 @junit.org · 22d

#JUnit 5.14.0-RC1 is ready for testing!

🐞 Bug fixes and enhancements since 5.13.x
✈ Deprecations along with new APIs to ease migration to the upcoming 6.0 release

docs.junit.org/5.14.0-RC1/r...

JUnit 5 Release Notes

docs.junit.org

6 7

JUnit Team 💙💛 @junit.org · 26d

A big thank you to our new BRONZE SPONSOR,
LambdaTest! #supportJUnit

2

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Sam Brannen @sambrannen.com · Sep 14

Please give #JUnit 6.0 RC3 a try and provide us feedback if you run into any issues!

This is really, truly, hopefully the last RC before 6.0 GA. 😇

JUnit Team 💙💛 @junit.org · Sep 14

#JUnit 6.0.0-RC3 is ready for testing!

📰 Everything in 6.0.0-M1, M2, RC1, and RC2
⚠ Replacements for problematic APIs along with deprecations
🐞 Minor enhancements and bug fixes since 6.0.0-RC2

docs.junit.org/6.0.0-RC3/re...

JUnit Release Notes

docs.junit.org

3 6

JUnit Team 💙💛 @junit.org · Sep 14

#JUnit 6.0.0-RC3 is ready for testing!

📰 Everything in 6.0.0-M1, M2, RC1, and RC2
⚠ Replacements for problematic APIs along with deprecations
🐞 Minor enhancements and bug fixes since 6.0.0-RC2

docs.junit.org/6.0.0-RC3/re...

JUnit Release Notes

docs.junit.org

2 8

JUnit Team 💙💛 @junit.org · Aug 25

#JUnit 6.0.0-RC2 is ready for testing!

📰 Everything in 6.0.0-M1, 6.0.0-M2, and 6.0.0-RC1
🐞 Minor enhancements and bug fixes since 6.0.0-RC1

junit.org/junit5/docs/...

JUnit Release Notes

junit.org

1 5 12

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Marc Philipp @marcphilipp.de · Aug 21

✨ New blog post: "STF Milestone 6: Improved Kotlin support"

#JUnit 6.0.0-RC1 improves JUnit's #Kotlin story by adding support for suspending functions, sequences, contracts and nullness annotations.

👉 marcphilipp.de/blog/2025/08...

Thanks to the @sovereign.tech fund for their support!

object ImprovedKotlinSupportTests {

val data = sequenceOf( // Sequence<T> support
arguments(1, Month.JANUARY),
arguments(12, Month.DECEMBER)
)

@ParameterizedTest
@FieldSource("data")
// suspending function support for coroutine testing
suspend fun test(value: Int, month: Month?) {
assertNotNull(month) // contracts to support...
assertEquals(value, month.value) // smart casts!
}
}

4 5

JUnit Team 💙💛 @junit.org · Aug 20

#JUnit 6.0.0-RC1 is ready for testing!

📰 Everything in 6.0.0-M1 and 6.0.0-M2
🏷 Improved display names for parameterized classes/tests
♻ `MethodOrderer.Default` and `ClassOrderer.Default` for `@Nested` classes

junit.org/junit5/docs/...

JUnit Release Notes

junit.org

1 1 10

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IntelliJ IDEA, a JetBrains IDE @intellijidea.com · Aug 18

What’s next for JUnit?
See @marcphilipp.de’s session from #IntelliJIDEAConf for updates on versions 5.12, 5.13, and the upcoming 6.0 preview 👉 youtu.be/-cY5BJaHz6E

5 13

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Marc Philipp @marcphilipp.de · Aug 16

✨ New blog post: "STF Milestone 5: Discovery issues"

Ever written a test that wasn't being executed? 😱

#JUnit 5.13 introduced a mechanism for reporting such issues found during test discovery.

👉 marcphilipp.de/blog/2025/08...

Thanks to the @sovereign.tech fund for their support!

@Test // Java
int test() {
return 42;
} // Not executed!!! 😱😱😱

5 14

JUnit Team 💙💛 @junit.org · Aug 12

It was an honor to participate in of one of the first iterations of the GitHub Secure Open Source Fund's program. It was great to have dedicated time to think about security and apply our lessons learned. Thank you to @github.com and all partners for making this possible! github.blog/open-source/...

Securing the supply chain at scale: Starting with 71 important open source projects

Learn how the GitHub Secure Open Source Fund helped 71 open source projects significantly improve their security posture.

github.blog

4

JUnit Team 💙💛 @junit.org · Jul 22

#JUnit 6.0.0-M2 is ready for testing!

📰 Everything in 6.0.0-M1
🛑 Support for cancelling test execution
⏭️ New `--fail-fast` mode for ConsoleLauncher
🦺 Null-safe `computeIfAbsent` methods for stores
🧐 Strict evaluation of enum-based configuration parameters

junit.org/junit5/docs/...

JUnit Release Notes

junit.org

2 7

JUnit Team 💙💛 @junit.org · Jul 21

#JUnit 5.13.4 is released!

🐞 Bug fixes and minor improvements

junit.org/junit5/docs/...

JUnit 5 Release Notes

junit.org

5 14

JUnit Team 💙💛 @junit.org · Jul 4

#JUnit 5.13.3 is released!

🐞 Bug fixes and minor improvements

junit.org/junit5/docs/...

JUnit 5 Release Notes

junit.org

6 14

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Sam Brannen @sambrannen.com · Jun 29

If you ever need to adapt a #JUnit3 TestSuite to run directly in #JUnit #Jupiter, it's actually possible with dynamic tests! 😎

Here's how I run the @⁠Inject TCK in the @SpringFramework.

github.com/spring-proje...

Kudos to @marcphilipp.de for suggesting the dynamic test idea.

github.com

3 6

JUnit Team 💙💛 @junit.org · Jun 27

#JUnit 6.0.0-M1 is ready for testing!

✨ Require Java 17 and Kotlin 2.2
🌄 JSpecify nullability info
🚟 Kotlin suspend function support
🛫 Integrated custom JFR events
🚅 FastCSV-backed Csv{File}Source
🧹 Remove deprecated APIs and behaviors

junit.org/junit5/docs/...

JUnit Release Notes

junit.org

1 7 19

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Sam Brannen @sambrannen.com · Jun 27

#JUnit Logo Contest Update

Here are some of the top contenders.

Please let us know your thoughts.

And additional proposals are welcome!

github.com/junit-team/j...

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Julien Topçu 🇲🇶🇦🇲 @julientopcu.com · Jun 25

Très heureux de voir le retour de @jderancourt.bsky.social sur scène de l'équipe @junit.org, qui nous présente "Rendre ses tests concis et évolutifs grâce à JUnit 5 & cie" au @breizhcamp.org !

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JUnit Team 💙💛 @junit.org · Jun 24

#JUnit 5.13.2 is released!

⚠️ Fix discovery issue detection for inner classes and abstract methods
🐞 Bug fixes and minor improvements

junit.org/junit5/docs/...

JUnit 5 Release Notes

junit.org

7 11

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Sam Brannen @sambrannen.com · Jun 20

We really need a new #JUnit logo! 🤣

Proposals are welcome!

github.com/junit-team/j...

2 7 16

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Marc Philipp @marcphilipp.de · Jun 7

✨ New blog post: "STF Milestone 4: Parameterized test classes"

JUnit 5.13 introduced parameterized test classes (in addition to methods). They are a powerful testing tool that has long been missing from JUnit Jupiter...

👉 marcphilipp.de/blog/2025/06...

@ParameterizedClass
@ValueSource(strings = {"foo", "bar"})
class SomeTests {
@Parameter String value;

@Test
void shouldNotBeNull() {
assertNotNull(value);
}
@Test
void lengthShouldBeThree() {
assertEquals(3, value.length());
}
}

11 31

JUnit Team 💙💛 @junit.org · Jun 7

#JUnit 5.13.1 is released!

🐞 Fix regressions introduced in 5.13.0

junit.org/junit5/docs/...

JUnit 5 Release Notes

junit.org

1 8 26

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Marc Philipp @marcphilipp.de · Jun 4

The slides and code examples for my talk about #JUnit at #IntelliJIDEAConf are now available on marcphilipp.de/en/talks/

Talks • Marc Philipp

Personal website

marcphilipp.de

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