The REPL

-main

• The State of Clojure 2018 survey results are out now. Worth reading to see where the community is at.
• Eric Normand on What Clojure Needs to Grow + Reddit discussion
• Data mining Clojars for Java 9 compatibility issues
• The logging bear trap
• Macros, meta, and logging with some clever macrology from Howard Lewis Ship

Libraries & Books.

• Zach Tellman has finished a complete draft of his book Elements of Clojure. He's also doing an AMA on ClojureVerse next week. Chas Emerick (among many others) has high praise for it:
  "This is a great book that uses Clojure as the medium to explore some of the essential questions in computing, and maybe some ways to find an answer or two. 
  Zach has one of the sharpest minds I've ever encountered. You'd do well to soak this up."
• I'm a bit late on this, but Sean Corfield has taken over maintenance of core.cache and core.memoize and both have new releases out.
• Kapok is a new lisp on the Erlang VM
• Piggieback is seeing some new activity from Bruce Hauman and Bozhidar Batsov
• Confuse is a library for machine learning classification metrics

People are worried about Types. ?

• Are there any libraries that make clojure.spec less verbose?
• I agree with Tim Gilbert and Tim Baldridge that Clojure's error messages have gotten worse with the introduction of spec.
• Expound has experimental support for providing suggestions to correct syntactic errors in macros.

Recent Developments.

• Algebra of compatibility in test.check, and how Clojure does deprecations
• CLJS-1439 has been fixed, it adds type annotations for goon-define vars

Learning.

• A video from Clojure SYNC is out: Revenge of the Pragmatists
• Guess My Number with maria.cloud
• An experience report for hiring Clojure developers

Misc.

• rachelbythebay is one of my favourite personal blogs, along with Programming in the 21st Century (RIP). Here's a good war story of troubleshooting IPv6 issues.