@fasterxml

We do Jackson and other OSS

 Seattle, WA, USA
github.com/FasterXML
Joined May 2009
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🎉 Congrats to @cowtowncoder and the @fasterxml team on the Jackson 3.1.0 LTS release! Jackson powers countless Java applications – and we’re excited to see this new release. Check it out 👇
Big Jackson Corp.@fasterxmlFeb 23
Jackson 3.1.0 LTS version (github.com/FasterXML/jackson…) being released. HUGE "minor" release with over 140 (!) changes, mostly fixes. The first Long-Term Support version for Jackson 3.x; upgrade from 3.0.x strongly recommended. #java #json #xml #csv #cbor #smile etc #jackson

Jackson Release 3.1

Main Portal page for the Jackson project. Contribute to FasterXML/jackson development by creating an account on GitHub.

github.com
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Big Jackson Corp. retweeted
Heritage Matters🔱
@HeritageMatterzFeb 8
The Hurdy-Gurdy, Medieval European string instrument. The hurdy-gurdy's earliest known origin dates back to the 10th century. Musician: Andrey Vinogradov
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Dr. Jackson@cowtowncoder29 Oct 2025
Blogging! cowtowncoder.medium.com/why-…

Why upgrade to Jackson 3.0?

(if you are happy with Jackson 2.x functionality)

cowtowncoder.medium.com
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Science girl
@sciencegirl26 Oct 2025
Leonardo da Vinci invented the self supporting bridge between 1485-1487 This is how it works
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Science girl
@sciencegirl9 May 2025
These circles are not moving nor changing size or shape

This media is unavailable

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|￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣| | Don't Push To Production On Friday | |＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿＿| \ (•◡•) / \ / —— | | |_ |_
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Dr. Jackson@cowtowncoder19 Dec 2024
I blogged again: cowtowncoder.medium.com/supp…

Supporting Jackson project financially

First of all, disclaimer: fear not, I am not planning for quarterly pledge drives like NPR. This is only the second time (*) that I have…

cowtowncoder.medium.com
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Big Jackson Corp. retweeted
JUnit Team 💙💛@junitteam21 Oct 2024
September 2024 was a historic month: For the first time, Jupiter downloads/month from Maven Central (50 million) surpassed both JUnit 4 (45 million) and JUnit 3 (27 million). 🎉
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Dr. Jackson@cowtowncoder12 Oct 2024
Yay! Another GH Sponsor! While not an avalanche, Github is becoming non-trivial support source for my OSS efforts.
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Dr. Jackson@cowtowncoder3 Oct 2024
Indeed? thenewstack.io/open-source-n… (no pun intended)

Open Source Needs Younger Maintainers. How Can It Get Them?

Nearly half of open source maintainers have been at it for more than 10 years, and demands on them are increasing. Will anyone replace them?

thenewstack.io
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Happy to be not only "the issue creating guy", but also a part of: >But in addition to Jackson-databind improvements, Jackson Jr also added basic support for Java Records via jackson-jr#162 so Record values can be read and written just like regular POJOs. :)
Big Jackson Corp.@fasterxml27 Sep 2024
Replying to @fasterxml
2.18.0 Release almost complete: core, dataformat, datatype and base modules all in Maven Central. JAX-RS/Jakarta-RS, Scala module will take bit longer.
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Dr. Jackson@cowtowncoder9 Sep 2024
Jackson 2.18.0-rc1 overview: cowtowncoder.medium.com/jack… #java #json #jackson

Jackson 2.18-rc1 overview

The first release candidate for Jackson 2.18 – 2.18.0-rc1 — was released bit over a week ago. While waiting for the official 2.18.0…

cowtowncoder.medium.com
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Dr. Jackson@cowtowncoder11 May 2024
Ok, I blogged again: cowtowncoder.medium.com/casc…

Cascading Dependency Rebuilds for Jackson CI

aka “Github Actions for Fun and Profit!”

cowtowncoder.medium.com
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Erin Schnabel@ebullientworks9 Apr 2024
I. Am. So. Excited. ⁦@commonhaus_fdn⁩ is live. So stoked. 🎉🦄❤️
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Dr. Jackson@cowtowncoder10 Apr 2024
Whops. I blogged again! Jackson 2.17 release note: cowtowncoder.medium.com/jack… (yes, I have been lazy & procrastinating writing it. but better late than never & OSS maintainer burnout is real so I will excuse me)

Jackson 2.17 released

Only about 4 months after Jackson 2.16.0 release, we now have Jackson 2.17.0 available (see 2.17 Release Notes) (*). Timeline was somewhat…

cowtowncoder.medium.com
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Big Jackson Corp.@fasterxml9 Apr 2024
This: cowtowncoder.medium.com/jack…

Jackson moving into CommonHaus Foundation

Jackson project is joining CommonHaus foundation as one of its founding projects, along with a few other popular Java, including:

cowtowncoder.medium.com
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Dr. Jackson@cowtowncoder12 Mar 2024
Just in case it might be forgotten; Jackson does CSV too: medium.com/@cowtowncoder/rea… (the 2nd highest all time view count of my blog posts at Medium)
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Dr. Jackson@cowtowncoder27 Feb 2024
Jackson 2.17, Release Candidate 1 (2.17.0-rc1) release process starting... see github.com/FasterXML/jackson… for contents. Hopefully the only RC before 2.17.0-final.

Jackson Release 2.17

Main Portal page for the Jackson project. Contribute to FasterXML/jackson development by creating an account on GitHub.

github.com
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OSTIF Official@OSTIFofficial19 Feb 2024
Our first audit in collaboration with @sovtechfund's Bug Resilience Program is now published! 5 Jackson subprojects underwent holistic security work via this engagement, with auditing by @ADALogics. Read more at ostif.org/dataformatsdatatyp…
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Roman Kennke 🗽@rkennke11 Jul 2023
Me: Dear customer, how did the evaluation of that experimental feature (which may break the world) in your testing env go? Customer: Great! We already rolled it out into production across our fleets, worldwide.
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