> For the complete documentation index, see [llms.txt](https://help.codex.bio/codex/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.codex.bio/codex/mav/installation/download-and-install.md).

# CODEX® MAV - Download & Install

## Update

The latest CODEX® MAV version is 1.5\
Please update via ImageJ Updater (on startup or Help > Update...).

![](/files/-LhC8UHSDbZ0uup6It8s)

## New Installation

### Download

Please download ImageJ Fiji from [here](https://downloads.imagej.net/fiji/archive/20201022-1755/).\
Choose the appropriate version. For windows users, download  fiji-win64.zip.\
Unzipping to a known folder with proper user permissions, e.g. 'C:\Users\\\<user>\Documents'.\
Fiji updater will not work without read-write permissions.\
Please note, CODEX MAV is Fiji version specific. Please download the appropriate version linked above for full functionality.&#x20;

### Add CODEX® MAV Update Site

Start Fiji.\
Click on Help > Update...

![](/files/-LhC7hxxVUIzSY31mSlk)

After Updater scans for updates, click the 'Manage update sites' button.\
Click 'Add update site'.\
In the new line, add the following.

| Name      | URL                              |
| --------- | -------------------------------- |
| CODEX MAV | <http://sites.imagej.net/Akoya/> |

Click the checkbox to enable updates.

![](/files/-LhC7eONJwTT6O0IBh4c)

Click 'Close'.\
Click 'Apply changes'.\
After the update completes, restart Fiji.\
Check that 'CodexMAV' is available as a menu item.

![](/files/-LhC7Lyed3FFXfiyRcgG)

### MacOS

Please download and install JDK or JRE 1.8 that supports JavaFX from here: [Liberica](https://download.bell-sw.com/java/8u252+9/bellsoft-jdk8u252+9-macos-amd64-full.dmg) or [Zulu](https://www.azul.com/downloads/zulu-community/?version=java-8-lts\&os=macos\&architecture=x86-64-bit\&package=jdk-fx).

Then go to *{Fiji\_home}* directory. By default, there could be embedded JRE in the *'java'* folder. If it exists, please remove 'macos' folder from the 'java' folder.

How to find {Fiji\_home} directory on macOS:&#x20;

1. Right-click on the Fiji icon in the dock -> Options -> Show in Finder
2. Right-click on the Fiji app in Finder -> Show package contents

You can check your version of Java in FIJI by clicking **Help** **->** **About ImageJ...**

{% hint style="warning" %}
MAV 1.5 will be the last version to be supported on MAC OS
{% endhint %}