Compatibility
Emacs
CIDER supports Emacs 26.1+. More generally we try to support the last 3 major Emacs releases when that’s feasible and doesn’t add a lot of maintenance overhead.
| We pay special attention to supporting whatever Emacs is bundled with the current stable Debian and RHEL GNU/Linux distributions. |
nREPL
CIDER supports nREPL 0.6+.
| We pay special attention to supporting whatever nREPL is bundled with the current stable Leiningen and Boot releases. |
Java
CIDER officially targets Java 8, Java 11, Java 17, and the most recent rapid release version (e.g. Java 18). Generally speaking, we aim to support all Java releases that are currently officially supported by Oracle.
The requirements for Java are pretty much cider-nrepl's requirements.
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On Linux you are also strongly advised to make sure that JDK sources and javadocs are installed. You can find example commands in Troubleshooting.