Jonatan Ivanov
@jonatan-ivanov.bsky.social
@micrometer.io and @spring.io maintainer, Spring Observability Team member, Open Sourcerer, Speaker, @seattlejug.bsky.social co-organizer, Java Champion
Have I mentioned that with the @micrometer.io and @projectreactor.io releases on Thursday and Friday, the release train for @spring.io Boot 4.x and @spring.io Framework 7.x has started? 😄
If you want to jump on the train: spring.io/blog/2025/09...
If you want to jump on the train: spring.io/blog/2025/09...
November 10, 2025 at 7:10 AM
Have I mentioned that with the @micrometer.io and @projectreactor.io releases on Thursday and Friday, the release train for @spring.io Boot 4.x and @spring.io Framework 7.x has started? 😄
If you want to jump on the train: spring.io/blog/2025/09...
If you want to jump on the train: spring.io/blog/2025/09...
On our next @seattlejug.bsky.social event (Nov. 18th) @tinyrobots.bsky.social is going to talk about Dependency management for #Java applications
www.meetup.com/seajug/event...
www.meetup.com/seajug/event...
Dependency management for Java applications, Tue, Nov 18, 2025, 6:00 PM | Meetup
Modern Java systems utilize hundreds (or thousands) of dependencies. Each additional dependency adds complexity to the application development process. Java developers need
www.meetup.com
November 8, 2025 at 9:37 PM
On our next @seattlejug.bsky.social event (Nov. 18th) @tinyrobots.bsky.social is going to talk about Dependency management for #Java applications
www.meetup.com/seajug/event...
www.meetup.com/seajug/event...
Reposted by Jonatan Ivanov
Please give it a try and let us know what you think! This is your last opportunity before GA on Nov 20!
spring.io/blog/2025/11...
spring.io/blog/2025/11...
Spring Boot 4.0.0-RC2 available now
Level up your Java code and explore what Spring can do for you.
spring.io
November 7, 2025 at 8:46 AM
Please give it a try and let us know what you think! This is your last opportunity before GA on Nov 20!
spring.io/blog/2025/11...
spring.io/blog/2025/11...
Reposted by Jonatan Ivanov
tracing 1.6.0 has been released!
Check out the changelog at https://github.com/micrometer-metrics/tracing/releases/tag/v1.6.0
Check out the changelog at https://github.com/micrometer-metrics/tracing/releases/tag/v1.6.0
November 6, 2025 at 7:52 PM
tracing 1.6.0 has been released!
Check out the changelog at https://github.com/micrometer-metrics/tracing/releases/tag/v1.6.0
Check out the changelog at https://github.com/micrometer-metrics/tracing/releases/tag/v1.6.0
Reposted by Jonatan Ivanov
micrometer 1.16.0 has been released!
Check out the changelog at https://github.com/micrometer-metrics/micrometer/releases/tag/v1.16.0
Check out the changelog at https://github.com/micrometer-metrics/micrometer/releases/tag/v1.16.0
November 6, 2025 at 6:23 PM
micrometer 1.16.0 has been released!
Check out the changelog at https://github.com/micrometer-metrics/micrometer/releases/tag/v1.16.0
Check out the changelog at https://github.com/micrometer-metrics/micrometer/releases/tag/v1.16.0
Reposted by Jonatan Ivanov
For those looking to use JDBC observability with Spring Boot 4 pre-releases - Datasource Micrometer 2.0.0-RC1 is now available on Maven Central!
github.com/jdbc-observa...
#SpringBoot #Micrometer #Observability
github.com/jdbc-observa...
#SpringBoot #Micrometer #Observability
Release Release v2.0.0-RC1 · jdbc-observations/datasource-micrometer
Support Spring Boot 4.0.0-M3 (#78 )
Changelog
f5637b9 Release 2.0.0-RC1
4ad53af Upgrade to maven 3.8.8
7399834 Merge branch 'main' into boot-4
aba0f8e Update CHANGELOG and README for v2.0.0-RC1
8b...
github.com
October 17, 2025 at 6:26 AM
For those looking to use JDBC observability with Spring Boot 4 pre-releases - Datasource Micrometer 2.0.0-RC1 is now available on Maven Central!
github.com/jdbc-observa...
#SpringBoot #Micrometer #Observability
github.com/jdbc-observa...
#SpringBoot #Micrometer #Observability
Reposted by Jonatan Ivanov
tracing 1.6.0-RC1 has been released!
Check out the changelog at https://github.com/micrometer-metrics/tracing/releases/tag/v1.6.0-RC1
Check out the changelog at https://github.com/micrometer-metrics/tracing/releases/tag/v1.6.0-RC1
October 14, 2025 at 8:46 AM
tracing 1.6.0-RC1 has been released!
Check out the changelog at https://github.com/micrometer-metrics/tracing/releases/tag/v1.6.0-RC1
Check out the changelog at https://github.com/micrometer-metrics/tracing/releases/tag/v1.6.0-RC1
Reposted by Jonatan Ivanov
micrometer 1.16.0-RC1 has been released!
Check out the changelog at https://github.com/micrometer-metrics/micrometer/releases/tag/v1.16.0-RC1
Check out the changelog at https://github.com/micrometer-metrics/micrometer/releases/tag/v1.16.0-RC1
October 14, 2025 at 5:14 AM
micrometer 1.16.0-RC1 has been released!
Check out the changelog at https://github.com/micrometer-metrics/micrometer/releases/tag/v1.16.0-RC1
Check out the changelog at https://github.com/micrometer-metrics/micrometer/releases/tag/v1.16.0-RC1
Reposted by Jonatan Ivanov
The talk Brian Clozel and I gave at #Devoxx is already online.
Always great to share the stage with Brian. We covered what’s next for Spring Boot: API versioning, resiliency, OpenTelemetry, structured concurrency, and more.
Watch here: www.youtube.com/watch?v=4NQC...
#Java #SpringBoot
Always great to share the stage with Brian. We covered what’s next for Spring Boot: API versioning, resiliency, OpenTelemetry, structured concurrency, and more.
Watch here: www.youtube.com/watch?v=4NQC...
#Java #SpringBoot
Spring Boot: Chapter 4 by Brian Clozel, Stephane Nicoll
YouTube video by Devoxx
www.youtube.com
October 11, 2025 at 9:09 AM
The talk Brian Clozel and I gave at #Devoxx is already online.
Always great to share the stage with Brian. We covered what’s next for Spring Boot: API versioning, resiliency, OpenTelemetry, structured concurrency, and more.
Watch here: www.youtube.com/watch?v=4NQC...
#Java #SpringBoot
Always great to share the stage with Brian. We covered what’s next for Spring Boot: API versioning, resiliency, OpenTelemetry, structured concurrency, and more.
Watch here: www.youtube.com/watch?v=4NQC...
#Java #SpringBoot
Reposted by Jonatan Ivanov
I blogged again: cowtowncoder.medium.com/jackson-3-0-...
Jackson 3.0.0 (GA) released
(October 3, 2025)
cowtowncoder.medium.com
October 10, 2025 at 10:38 PM
I blogged again: cowtowncoder.medium.com/jackson-3-0-...
Reposted by Jonatan Ivanov
You can’t join hallway track convos through a screen 😅 💬
Meet your people live at #Devnexus 2026 — Early Bird tickets end next week!
🎟️ Secure tickets today at devnexus.org
Meet your people live at #Devnexus 2026 — Early Bird tickets end next week!
🎟️ Secure tickets today at devnexus.org
October 9, 2025 at 5:03 PM
You can’t join hallway track convos through a screen 😅 💬
Meet your people live at #Devnexus 2026 — Early Bird tickets end next week!
🎟️ Secure tickets today at devnexus.org
Meet your people live at #Devnexus 2026 — Early Bird tickets end next week!
🎟️ Secure tickets today at devnexus.org
Reposted by Jonatan Ivanov
Core Java 14th edition, updated for Java 25, is now available in print or ebook at https://www.informit.com... and https://www.informit.com...
October 8, 2025 at 5:19 AM
Core Java 14th edition, updated for Java 25, is now available in print or ebook at https://www.informit.com... and https://www.informit.com...
Reposted by Jonatan Ivanov
GenAI: Are we evolving the craft of software development — or eroding it? 🤖💻
At #dev2next, Frank Greco, @speakjava.bsky.social , @danvega.dev & Jennifer Reif shared candid insights on the future of our profession in a packed keynote panel.
📸 Check out photos from the panel below!
At #dev2next, Frank Greco, @speakjava.bsky.social , @danvega.dev & Jennifer Reif shared candid insights on the future of our profession in a packed keynote panel.
📸 Check out photos from the panel below!
October 2, 2025 at 5:00 PM
GenAI: Are we evolving the craft of software development — or eroding it? 🤖💻
At #dev2next, Frank Greco, @speakjava.bsky.social , @danvega.dev & Jennifer Reif shared candid insights on the future of our profession in a packed keynote panel.
📸 Check out photos from the panel below!
At #dev2next, Frank Greco, @speakjava.bsky.social , @danvega.dev & Jennifer Reif shared candid insights on the future of our profession in a packed keynote panel.
📸 Check out photos from the panel below!
If you are at @dev2next.bsky.social, please consider my talk today: "A Million Ways to Fail in Production: Embracing Catastrophes for Fun and Profit"
www.dev2next.com/speaker/da6b...
www.dev2next.com/speaker/da6b...
dev2next Conference
The conference to learn, apply, and improve our craft.
www.dev2next.com
September 30, 2025 at 2:32 PM
If you are at @dev2next.bsky.social, please consider my talk today: "A Million Ways to Fail in Production: Embracing Catastrophes for Fun and Profit"
www.dev2next.com/speaker/da6b...
www.dev2next.com/speaker/da6b...
Reposted by Jonatan Ivanov
At #Dev2Next in Colorado Springs?
Tomorrow 2:15 PM, catch @asm0dey.site and Jonatan Ivanov on:
🔧 From Mystery to Mastery: Decoding the JVM with Observability Tools.
Real-world ways to debug CPU spikes, memory loss, and latency with observability that works.
Tomorrow 2:15 PM, catch @asm0dey.site and Jonatan Ivanov on:
🔧 From Mystery to Mastery: Decoding the JVM with Observability Tools.
Real-world ways to debug CPU spikes, memory loss, and latency with observability that works.
September 29, 2025 at 2:45 PM
At #Dev2Next in Colorado Springs?
Tomorrow 2:15 PM, catch @asm0dey.site and Jonatan Ivanov on:
🔧 From Mystery to Mastery: Decoding the JVM with Observability Tools.
Real-world ways to debug CPU spikes, memory loss, and latency with observability that works.
Tomorrow 2:15 PM, catch @asm0dey.site and Jonatan Ivanov on:
🔧 From Mystery to Mastery: Decoding the JVM with Observability Tools.
Real-world ways to debug CPU spikes, memory loss, and latency with observability that works.
Reposted by Jonatan Ivanov
Join @jonatan-ivanov.bsky.social at dev2next, to discuss some of the most common ways software fails and some of the most creative and unusual failures he has seen over the years💥
www.dev2next.com/speaker/da6b...
🎟️ Get tickets @ dev2next.com
🙌 Use code JOIN-JONATANI-50OFF for discount
www.dev2next.com/speaker/da6b...
🎟️ Get tickets @ dev2next.com
🙌 Use code JOIN-JONATANI-50OFF for discount
September 10, 2025 at 5:06 PM
Join @jonatan-ivanov.bsky.social at dev2next, to discuss some of the most common ways software fails and some of the most creative and unusual failures he has seen over the years💥
www.dev2next.com/speaker/da6b...
🎟️ Get tickets @ dev2next.com
🙌 Use code JOIN-JONATANI-50OFF for discount
www.dev2next.com/speaker/da6b...
🎟️ Get tickets @ dev2next.com
🙌 Use code JOIN-JONATANI-50OFF for discount
Reposted by Jonatan Ivanov
🦾 Observability should empower devs, not overwhelm them. @jonatan-ivanov.bsky.social's #Devnexus talk unveils how Micrometer’s Observation API consolidates logging, metrics & tracing into one practical workflow.
Recap ⤵️
devnexus.com/posts/microm...
🚀Attend Devnexus 2026 & stay ahead of the curve!
Recap ⤵️
devnexus.com/posts/microm...
🚀Attend Devnexus 2026 & stay ahead of the curve!
Micrometer Mastery Unleash Advanced Observability in JVM Apps with Jonatan Ivanov
In a deep dive into the world of application monitoring, Jonathan Ivanov’s presentation on Micrometer Mastery provides a crucial roadmap for developers looki...
devnexus.com
September 9, 2025 at 4:00 PM
🦾 Observability should empower devs, not overwhelm them. @jonatan-ivanov.bsky.social's #Devnexus talk unveils how Micrometer’s Observation API consolidates logging, metrics & tracing into one practical workflow.
Recap ⤵️
devnexus.com/posts/microm...
🚀Attend Devnexus 2026 & stay ahead of the curve!
Recap ⤵️
devnexus.com/posts/microm...
🚀Attend Devnexus 2026 & stay ahead of the curve!
Let me show you a very underappreciated tourist attraction in Paris. I highly recommend it, especially for Americans. :)
(There are two of them in Paris both of them are 24/7 available and free.)
maps.app.goo.gl/pbgmTxfzU7pD...
(There are two of them in Paris both of them are 24/7 available and free.)
maps.app.goo.gl/pbgmTxfzU7pD...
August 30, 2025 at 6:09 PM
Let me show you a very underappreciated tourist attraction in Paris. I highly recommend it, especially for Americans. :)
(There are two of them in Paris both of them are 24/7 available and free.)
maps.app.goo.gl/pbgmTxfzU7pD...
(There are two of them in Paris both of them are 24/7 available and free.)
maps.app.goo.gl/pbgmTxfzU7pD...
I thought I had seen things in the World until I saw sparkling water fountains in Paris... 🥹
fontaine.eaudeparis.fr
fontaine.eaudeparis.fr
Eau de Paris - Où boire de l'eau à Paris ?
Visualiser l'ensemble des points d'eau potable à Paris
fontaine.eaudeparis.fr
August 27, 2025 at 6:01 PM
I thought I had seen things in the World until I saw sparkling water fountains in Paris... 🥹
fontaine.eaudeparis.fr
fontaine.eaudeparis.fr
Paris public transportation:
- If you are a "tourist": 5 days €76.25
- If you are not a "tourist": a full week (Mon-Sun) €31.60
🤷
- If you are a "tourist": 5 days €76.25
- If you are not a "tourist": a full week (Mon-Sun) €31.60
🤷
August 26, 2025 at 1:55 PM
Paris public transportation:
- If you are a "tourist": 5 days €76.25
- If you are not a "tourist": a full week (Mon-Sun) €31.60
🤷
- If you are a "tourist": 5 days €76.25
- If you are not a "tourist": a full week (Mon-Sun) €31.60
🤷
Reposted by Jonatan Ivanov
Are you introducing JSpecify and NullAway, and
`@SuppressWarnings({ "DataFlowIssue", "NullAway" })`
is all over the place?
NullAway 0.12.8 to the rescue with `SuppressionNameAliases`! 🥳
github.com/uber/NullAwa...
`@SuppressWarnings({ "DataFlowIssue", "NullAway" })`
is all over the place?
NullAway 0.12.8 to the rescue with `SuppressionNameAliases`! 🥳
github.com/uber/NullAwa...
Configuration
A tool to help eliminate NullPointerExceptions (NPEs) in your Java code with low build-time overhead - uber/NullAway
github.com
August 22, 2025 at 3:25 PM
Are you introducing JSpecify and NullAway, and
`@SuppressWarnings({ "DataFlowIssue", "NullAway" })`
is all over the place?
NullAway 0.12.8 to the rescue with `SuppressionNameAliases`! 🥳
github.com/uber/NullAwa...
`@SuppressWarnings({ "DataFlowIssue", "NullAway" })`
is all over the place?
NullAway 0.12.8 to the rescue with `SuppressionNameAliases`! 🥳
github.com/uber/NullAwa...
The next @seattlejug.bsky.social event will be about @kotlinlang.org and testing by @asm0dey.site
www.meetup.com/seajug/event...
www.meetup.com/seajug/event...
Kotlin Goodies for Testing, Mon, Aug 11, 2025, 6:00 PM | Meetup
Kotlin is known for its DSL-building capabilities. Some would think - but how can it help me in testing? The answer is: oh, it really can! In this talk, we will talk about
www.meetup.com
August 8, 2025 at 6:40 AM
The next @seattlejug.bsky.social event will be about @kotlinlang.org and testing by @asm0dey.site
www.meetup.com/seajug/event...
www.meetup.com/seajug/event...
Reposted by Jonatan Ivanov
Join @jonatan-ivanov.bsky.social and @asm0dey.site for an example-driven journey through the JVM observability landscape at dev2next this September! 🚀
www.dev2next.com/speaker/1a78...
🎟️ Get tickets at dev2next.com
👀 Use the code JOIN-PASHAF-50OFF for a discount!
📅 September 29 - October 2
www.dev2next.com/speaker/1a78...
🎟️ Get tickets at dev2next.com
👀 Use the code JOIN-PASHAF-50OFF for a discount!
📅 September 29 - October 2
July 30, 2025 at 5:01 PM
Join @jonatan-ivanov.bsky.social and @asm0dey.site for an example-driven journey through the JVM observability landscape at dev2next this September! 🚀
www.dev2next.com/speaker/1a78...
🎟️ Get tickets at dev2next.com
👀 Use the code JOIN-PASHAF-50OFF for a discount!
📅 September 29 - October 2
www.dev2next.com/speaker/1a78...
🎟️ Get tickets at dev2next.com
👀 Use the code JOIN-PASHAF-50OFF for a discount!
📅 September 29 - October 2
Reposted by Jonatan Ivanov
Jackson 3.0.0-rc6 released (see github.com/FasterXML/ja...) -- main change is `jackson-annotations` dependency to 2.x (2.19.2 to be precise), so 3.x will work on existing 2.x annotations.
Getting quite close to 3.0.0 final!
Getting quite close to 3.0.0 final!
Jackson Release 3.0
Main Portal page for the Jackson project. Contribute to FasterXML/jackson development by creating an account on GitHub.
github.com
July 20, 2025 at 4:01 AM
Jackson 3.0.0-rc6 released (see github.com/FasterXML/ja...) -- main change is `jackson-annotations` dependency to 2.x (2.19.2 to be precise), so 3.x will work on existing 2.x annotations.
Getting quite close to 3.0.0 final!
Getting quite close to 3.0.0 final!
The weather will be wild on Wednesday. :)
June 21, 2025 at 7:46 AM
The weather will be wild on Wednesday. :)