# Consult upgrade notes below to see if any manual configuration updates are necessary.
# Wait for the cluster to be idle and stop Arvados services.
+# Make a backup of your database, as a precaution.
# Install new packages using @apt-get upgrade@ or @yum upgrade@.
# Wait for package installation scripts as they perform any necessary data migrations.
# Restart Arvados services.
<div class="releasenotes">
</notextile>
-h2(#master). development master (as of 2020-09-22)
+h2(#master). development master (as of 2020-09-28)
"Upgrading from 2.0.0":#v2_0_0
+h3. LoginCluster conflicts with other Login providers
+
+A satellite cluster that delegates its user login to a central user database must only have `Login.LoginCluster` set, or it will return an error. This is a change in behavior, previously it would return an error if another login provider was _not_ configured, even though the provider would never be used.
+
h3. Minimum supported Ruby version is now 2.5
The minimum supported Ruby version is now 2.5. If you are running Arvados on Debian 9 or Ubuntu 16.04, you may need to switch to using RVM or upgrade your OS. See "Install Ruby and Bundler":../install/ruby.html for more information.
done
</pre>
+h4. "Public favorites" moved to their own project
+
+As a side effect of new permission system constraints, "star" links (indicating shortcuts in Workbench) that were previously owned by "All users" (which is now a "role" and cannot own things) will be migrated to a new system project called "Public favorites" which is readable by the "Anonymous users" role.
+
h2(#v2_0_0). v2.0.0 (2020-02-07)
"Upgrading from 1.4":#v1_4_1