System/Installation/J9.5
Release Notes
AVX2 Hardware
J9.5 is available for non-AVX and AVX2 hardware (see Guides/AVX). There is a proliferation of hardware models after the initial AVX and AVX2. J uses the generic term AVX2 loosely to refer to the hardware required to run corresponding J binary. The initial installation from zips is non-AVX and finishing the installation steps upgrades to AVX2 as appropriate for your hardware.
Download and Install
Windows users should use the All-in-One installer.
All other users should use this link to access the appropriate zip files.
GMP
J9.5 uses gmp for extended precision and rational numbers. You may need to
install'gmp'
from within J after installing or upgrading J9.5. This needs to happen at most once.
JQt IDE
In addition to the base IDE configurations of console and JHS there is a Qt-based IDE also available in the addons.
Once installed, all updates can be done with pacman (package manager).
Qt updates must be done through J console with all instances of the JQt IDE closed.
J scripting support
If you are interested in creating J scripts on unix-like systems, for shell scripting you should probably create a symbolic link at /usr/bin/ijconsole pointing at the J interpreter.
sudo ln -fs /Applications/j9.5/bin/jconsole /usr/bin/ijconsole