"Upgrading from 2.0.0":#v2_0_0
+h3. Removing libpam-arvados, replaced with libpam-arvados-go
+
+The Python-based PAM package has been replaced with a version written in Go. See "using PAM for authentication":{{site.baseurl}}/install/setup-login.html#pam for details.
+
h3. Removing sso-provider
The SSO (single sign-on) component is deprecated and will not be supported in future releases. Existing configurations will continue to work in this release, but you should switch to one of the built-in authentication mechanisms as soon as possible. See "setting up web based login":{{site.baseurl}}/install/setup-login.html for details.
* To enable it, add to your configuration file: <pre>[Manage]
address = 127.0.0.1
- port = 8989</pre> (see example configuration files in source:services/nodemanager/doc or https://doc.arvados.org/install/install-nodemanager.html for more info)
+ port = 8989</pre>
* The server responds to @http://{address}:{port}/status.json@ with a summary of how many nodes are in each state (booting, busy, shutdown, etc.)
h3. New websockets component (2017-03-23)