Change the Azureus 2 jar file

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For Mac OS X Users:

If you are a Mac OS X user and wish to ugrade to the latest CVS snapshot:

There is a "ctrl" key located in between the "fn" key and the "alt" key.

  1. First, it is a very good idea to make backup copies of your Azureus folder in Applications, and most importantly also the Azureus file in Users/<username>/Library/Application Support/Azureus Save them under a name that is NOT Azureus, such as "az backup" or similar. This way you can go back to the previous working version if there are problems with the new one.
  2. Make sure Azureus is not running! Just "Quit" if it is.
  3. Download the Azureus2xxx-Bxx.jar file by going to http://azureus.sourceforge.net/index_CVS.php and ctrl clicking on it, and select "Download Linked File As". (Or, download via .torrent file for better speed and reliability.)
  4. Save it in easy reach on the desktop, or in the Applications/Azureus folder, or wherever.
  5. Open the finder, go to Applications/Azureus/ (or wherever you installed Azureus to)
  6. ctrl-click (or right-mouse-button click) on the frog and select "Show Package Contents".
    • If you are using an Azureus.app prior to 2.3.0.0 or 2.3.0.6 and up: Go to Contents/Resources/Java/ folder and drag the previous Azureus2.jar file out to the trash.
    • If you are using an Azureus.app 2.3.0.0 to 2.3.0.4: Open the folder "Contents", ctrl-click on "Azureus" (yes, another frog in the new structure) and select "Show Package Contents" again and then go finally to Contents/Resources/Java/ folder and drag the previous Azureus2.jar file out to the trash.
  7. Drag the new Azureus2-Bxx.jar file into the same location location you removed the old one from.
  8. Rename it to Azureus2.jar
  9. Close the finder, and run Azureus.
  10. That's it.


This can also be done from Terminal, by going to

  • (if you are using an Azureus.app prior to 2.3.0.0 or 2.3.0.6 and up) /Applications/Azureus.app/Resources/Java/ and deleting Azureus2.jar and moving the new one on the desktop to that location. And renaming the new one, of course. :)
  • (if you are using an Azureus.app 2.3.0.0 to 2.3.0.4) /Applications/Azureus.app/Contents/Azureus.app/Contents/Resources/Java/ and deleting Azureus2.jar and moving the new one on the desktop to that location. And renaming the new one, of course. :)
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