Clojure Deref (Jan 20, 2026)

20 January 2026
Christoph Neumann

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

Upcoming Events

Podcasts, videos, and media

Blogs, articles, and news

Libraries and Tools

Debut release

  • fusion-http - Ring adapter for FusionAuth’s HTTP server

  • atlas - Atlas rethinks how we describe software architecture. Query, validate, and visualize your system semantics as a single queryable graph.

  • nucleus - An AI prompting framework

  • opusdb - A lightweight, in-memory database written in Clojure for functional data.

  • chronos - dependency-free clojure(script) time library

  • missionary-testkit - deterministic scheduler to test concurrency in missionary tasks and flows

  • ClojureMiniIDE - A minimalistic integrated development environment for the Clojure programming language.

  • supersonic-cljs-demo - Demo of how to use supersonic with clojurescript

  • proximum - A fast vector search on immutable storage

  • hive-mcp - MCP server for hive-framework development, highly integrated to emacs

Updates

  • omega-red 2.6.0 - Idiomatic Redis client for Clojure

  • manifest-edn 0.1.2 - A small Clojure/Babashka library for hashing static assets

  • pretty 3.6.8 - Library for helping print things prettily, in Clojure - ANSI fonts, formatted exceptions

  • monkeyci 0.23.0 - Next-generation CI/CD tool that uses the full power of Clojure!

  • calva 2.0.545 - Clojure & ClojureScript Interactive Programming for VS Code

  • clj-kondo 2026.01.19 - Static analyzer and linter for Clojure code that sparks joy

  • fulcro-spec fulcro-spec-3.2.4 - A library that wraps clojure.test for a better BDD testing experience.

  • aleph 0.9.5 - Asynchronous streaming communication for Clojure - web server, web client, and raw TCP/UDP

  • nvd-clojure 5.3.0 - National Vulnerability Database dependency checker for Clojure projects