Welcome to the Clojure Deref! This is a weekly link/news roundup for the Clojure ecosystem. (@ClojureDeref RSS)

This week brings a new version of ClojureScript - read the release notes for ClojureScript 1.10.891!

Welcome to the Clojure Deref! This is a weekly link/news roundup for the Clojure ecosystem. (@ClojureDeref RSS)

Looks like re:Clojure on Dec 3-4 is shaping up to be a great online event! Keynotes will be Gerald Sussman and Stephen Wol

Welcome to the Clojure Deref! This is a weekly link/news roundup for the Clojure ecosystem. (@ClojureDeref RSS)

The Clojure community has a long and friendly relationship with our cousins in the Racket/Scheme community and we’ve often

Welcome to the Clojure Deref! This is a weekly link/news roundup for the Clojure ecosystem. (@ClojureDeref RSS)

• Asami: Turn your JSON into a Graph in 2 Lines - Paula Gearon, from Strange Loop 2021

Welcome to the Clojure Deref! This is a weekly link/news roundup for the Clojure ecosystem. (@ClojureDeref RSS)

Last week was a bit of a Deref holiday as your host was otherwise occupied running the Strange Loop conference (in-person)! It was re

Welcome to the Clojure Deref! This is a weekly link/news roundup for the Clojure ecosystem. (@ClojureDeref RSS)

• Changing to Clojure mid-flight - Marcus Rydberg from Func Prog Sweden

• Vlojure - A New

Welcome to the Clojure Deref! This is a weekly link/news roundup for the Clojure ecosystem. (@ClojureDeref RSS)

This week we released Clojure 1.11.0-alpha2 which pulls together several things the core team has been working on plus a v

Welcome to the Clojure Deref! This is a weekly link/news roundup for the Clojure ecosystem. (@ClojureDeref RSS)

The Call for Papers is now open for re:Clojure, a virtual Clojure conference on Dec 3-4, and the inimitable Professor Suss

Welcome to the Clojure Deref! This is a weekly link/news roundup for the Clojure ecosystem. (@ClojureDeref RSS)

Clojurists Together announced their Q3 funding projects - congrats to all receiving funding and thanks to Clojurists Toget

Welcome to the Clojure Deref! This is a weekly link/news roundup for the Clojure ecosystem. (@ClojureDeref RSS)

I’d like to highlight the SciCloj community this week. This recent video is a great overview of what’s going on. They are

Welcome to the Clojure Deref! This is a weekly link/news roundup for the Clojure ecosystem. (@ClojureDeref RSS)

Peter Strömberg spent the week working on a very cool zero-install "learn Clojure" story using Gitpod and Calva.

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This seems like a good week to highlight some more Clojure unicorns (private companies with valuations of at least 1 billi

Welcome to the Clojure Deref! This is a weekly link/news roundup for the Clojure ecosystem. (@ClojureDeref RSS)

Erez Rabih wrote a good blog post that covers a lot of the high and low points of working in the tech industry as a Clojur

Welcome to the Clojure Deref! This is a weekly link/news roundup for the Clojure ecosystem. (@ClojureDeref RSS)

I started the week by writing a post about the new Clojure library tools.build and how to add support for building artifac

Welcome to the Clojure Deref! This is a weekly link/news roundup for the Clojure ecosystem. (@ClojureDeref RSS)

Big congrats to Amperity on their Series D financing and valuation of $1B, making them another "unicorn" built s

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Rich Hickey wrote a paper "A History of Clojure" for the HOPL IV (History of Programming Languages) conference.

Several years ago, Clojure introduced deps.edn (a data definition for dependencies), tools.deps (a library for computing classpaths), and the Clojure CLI to run programs. The Clojure community has widely adopted these and we are excited today to provid

Welcome to the Clojure Deref! This is a weekly link/news roundup for the Clojure ecosystem. (@ClojureDeref RSS)

Clojurists Together announced a more varied set of funding models moving forward to better match what projects have been s

Welcome to the Clojure Deref! This is a weekly link/news roundup for the Clojure ecosystem. (@ClojureDeref RSS)

It is common to see complaints that both Clojure jobs and Clojure developers are hard to find. The real truth is: both exi

Welcome to the Clojure Deref! This is a periodic link/news roundup for the Clojure ecosystem. (@ClojureDeref RSS)

• HOPL IV (History of Programming Languages) at PLDI 2021 is happening on Monday and Tuesday and includes a talk

Welcome to the Clojure Deref! This is a periodic link/news roundup for the Clojure ecosystem. (RSS feed)

This week Nubank announced a new $750M investment, led by $500M from Berkshire Hathaway at a $30B valuation. Nubank is the larges

Welcome to the Clojure Deref! This is a new periodic (thinking bi-weekly) link/news roundup for the Clojure ecosystem. We’ll be including links to Clojure articles, Clojure libraries, and when relevant, what’s happening in the Clojure core team.

While a challenging year overall, 2020 was another good year for Clojure and its ecosystem. One big newsworthy item was that Cognitect joined Nubank, the world’s largest independent digital bank, to reinvent financial services across Latin America

To date, Clojure’s support for keyword arguments forces programmers to choose between creating APIs that better support people (accepting keyword args) or APIs that better support programs (by taking a map of those args).

Introduced in Clojure 1

Clojure 1.10.3 is a small release with the following changes:

• Reverted the case error message change from 1.10.2 due to backwards compatibility concerns

• Added prepl support for reader conditionals

Clojure 1.10.2 includes a number of improvements for Java interop/compatibility:

• Fixes an issue in the locking macro to satisfy more stringent Java verifiers (particularly, Graal)

• Fix for invocation of static interfac

It’s time for the annual State of Clojure Community Survey!

If you are a user of Clojure or ClojureScript, we are greatly interested in your responses to the following survey:

• State of Clojure 2021

The survey

We are thrilled to announce that Cognitect is joining the Nubank family of companies. This is the next step in a long relationship, and opens new opportunities for Clojure worldwide. Please read the full story over on the Cognitect blog.

For Mac or Linux users using Homebrew, Clojure now has its own Homebrew tap, clojure/tools. Creating an official Clojure tap has the following advantages:

1. Clojure team controls formula contents

2. Clojure team controls r

Ten years ago, Chas Emerick ran the first State of Clojure survey. In 2010, most users had been using Clojure for just weeks or months, and few were using it as a language for serious work. This year, we see consistent and growing use for work, steady

It’s time for the annual State of Clojure Community Survey!

If you are a user of Clojure or ClojureScript, we are greatly interested in your responses to the following survey:

• State of Clojure 2020

The survey

We are pleased to announce today a new forum for Clojure and ClojureScript users: https://ask.clojure.org. You can ask questions, discuss possible problems, request enhancements, and vote on questions and answers.

The new forum was seeded with a

Clojure 1.10.1 is a small release focusing on two issues: working around a Java performance regression and improving error reporting from clojure.main.

Recent builds of Java 8 (u202), 11 (11.0.2), 12, and 13 included

Clojure has been very fortunate to receive infrastructure support from Atlassian (for JIRA and Confluence) and Contegix (for hosting) for many years. The Confluence and JIRA instances were not kept up to date, and have grown increasingly hard to mainta

Welcome to the annual State of Clojure survey results! Every year we survey Clojure and ClojureScript developers to evaluate the state of the language and its users. Thank you to everyone that took the time to complete the survey and provide your input

It’s time for the annual State of Clojure Community Survey!

If you are a user of Clojure or ClojureScript, we are greatly interested in your responses to the following survey:

• State of Clojure 2019

The survey

Clojure 1.10 focuses on two major areas: improved error reporting and Java compatibility.

Error reporting at the REPL now categorizes errors based on their phase of execution (read, macroexpand, compile, etc). Errors carry additional information

Welcome to the annual State of Clojure 2018 survey results! Thanks so much for taking the time to check in and provide your feedback. We are very fortunate to have data for some of these questions going all the way back to 2010, giving us a long view o

Clojure was designed to empower developers by enabling them to leverage existing libraries. When Clojure was first released, this manifest itself in strong interop support for Java. Eventually tooling (Leiningen et al) arose around procuring Java libs

Clojure 1.9 is now available!

Clojure 1.9 introduces two major new features: integration with spec and command line tools.

spec (rationale, guide) is a library for describing the structure of data and functions with support for:

Welcome back to the annual State of Clojure survey results. This year we held steady in our response rate as 2,420 of you took the time and effort to weigh in on your experience with Clojure - as always, we appreciate that time and effort very much. An

I’m happy to introduce today clojure.spec, a new core library and support for data and function specifications in Clojure.

Clojure is a dynamic language, and thus far we have relied on documentation or exter

Check out the State of Clojure 2015 survey results here:

http://blog.cognitect.com/blog/2016/1/28/state-of-clojure-2015-survey-results

Thanks for responding - it’s great to see the community growing and doing great things!

Some of the new features for 1.8 are:

• More string functions in clojure.string (portable to ClojureScript): index-of, last-index-of, starts-with?, ends-with?, includes?

• Compiler direct linking - improves performance an

You are reading this on the newly updated Clojure web site! The first thing you will notice is that everything got a fresh coat of paint and the design is a big step forward. Essentially all of the old page content has been moved over to the new site,

We are pleased to announce the release of Clojure 1.7. The two headline features for 1.7 are transducers and reader conditionals. Also see the complete list of all changes since Clojure 1.6 for more details.

Transducers are composabl

Transducers are a powerful and composable way to build algorithmic transformations that you can reuse in many contexts, and they’re coming to Clojure core and core.async.

Two years ago, in a blog post describing how reducers work, I described th

core.async is a new contrib library for Clojure that adds support for asynchronous programming using channels.

There comes a time in all good programs when components or subsystems must stop communicating directly with one another. Thi

Last time, I blogged about Clojure’s new reducers library. This time I’d like to look at the details of what constitutes a reducer, as well as some background about the library.

The reducers library is built around tr

I’m happy to have pushed today the beginnings of a new Clojure library for higher-order manipulation of collections, based upon reduce and fold. Of course, Clojure already has Lisp’s reduce, which corresponds to the tradition