+h2(#v2_3_2). v2.3.2 (2021-12-09)
+
+"previous: Upgrading to 2.3.1":#v2_3_1
+
+There are no changes requiring special attention in this version.
+
+h2(#v2_3_1). v2.3.1 (2021-11-19)
+
+"previous: Upgrading to 2.3.0":#v2_3_0
+
+h3. Default LSF arguments have changed
+
+If you use LSF and your configuration specifies @Containers.LSF.BsubArgumentsList@, you should update it to include the new arguments (@"-R", "select[mem>=%MMB]", ...@, see "configuration reference":{{site.baseurl}}/admin/config.html). Otherwise, containers that are too big to run on any LSF host will remain in the LSF queue instead of being cancelled.
+
+h3. Previously trashed role groups will be deleted
+
+Due to a bug in previous versions, the @DELETE@ operation on a role group caused the group to be flagged as trash in the database, but continue to grant permissions regardless. After upgrading, any role groups that had been trashed this way will be deleted. This might surprise some users if they were relying on permissions that were still in effect due to this bug. Future @DELETE@ operations on a role group will immediately delete the group and revoke the associated permissions.
+
+h3. Users are visible to other users by default
+
+When a new user is set up (either via @AutoSetupNewUsers@ config or via Workbench admin interface) the user immediately becomes visible to other users. To revert to the previous behavior, where the administrator must add two users to the same group using the Workbench admin interface in order for the users to see each other, change the new @Users.ActivatedUsersAreVisibleToOthers@ config to @false@.
+
+h3. Backend support for vocabulary checking
+
+If your installation uses the vocabulary feature on Workbench2, you will need to update the cluster configuration by moving the vocabulary definition file to the node where @controller@ runs, and set the @API.VocabularyPath@ configuration parameter to the local path where the file was placed.
+This will enable the vocabulary checking cluster-wide, including Workbench2. The @Workbench.VocabularyURL@ configuration parameter is deprecated and will be removed in a future release.
+You can read more about how this feature works on the "admin page":{{site.baseurl}}/admin/metadata-vocabulary.html.
+
+h2(#v2_3_0). v2.3.0 (2021-10-27)
+
+"previous: Upgrading to 2.2.0":#v2_2_0
+
+h3. Ubuntu 18.04 packages for arvados-api-server and arvados-workbench now conflict with ruby-bundler
+
+Ubuntu 18.04 ships with Bundler version 1.16.1, which is no longer compatible with the Gemfiles in the Arvados packages (made with Bundler 2.2.19). The Ubuntu 18.04 packages for arvados-api-server and arvados-workbench now conflict with the ruby-bundler package to work around this issue. The post-install scripts for arvados-api-server and arvados-workbench install the proper version of Bundler as a gem.
+
+h3. Removed unused @update_uuid@ endpoint for users.
+
+The @update_uuid@ endpoint was superseded by the "link accounts feature":{{site.baseurl}}/admin/link-accounts.html, so it's no longer available.
+
+h3. Removed deprecated '@@' search operator
+
+The '@@' full text search operator, previously deprecated, has been removed. To perform a string search across multiple columns, use the 'ilike' operator on 'any' column as described in the "available list method filter section":{{site.baseurl}}/api/methods.html#substringsearchfilter of the API documentation.
+
+h3. Storage classes must be defined explicitly
+
+If your configuration uses the StorageClasses attribute on any Keep volumes, you must add a new @StorageClasses@ section that lists all of your storage classes. Refer to the updated documentation about "configuring storage classes":{{site.baseurl}}/admin/storage-classes.html for details.
+
+h3. keep-balance requires access to PostgreSQL
+
+Make sure the keep-balance process can connect to your PostgreSQL server using the settings in your config file. (In previous versions, keep-balance accessed the database through controller instead of connecting to the database server directly.)
+
+h3. crunch-dispatch-local now requires config.yml
+
+The @crunch-dispatch-local@ dispatcher now reads the API host and token from the system wide @/etc/arvados/config.yml@ . It will fail to start that file is not found or not readable.
+
+h3. Multi-file docker image collections
+
+Typically a docker image collection contains a single @.tar@ file at the top level. Handling of atypical cases has changed. If a docker image collection contains files with extensions other than @.tar@, they will be ignored (previously they could cause errors). If a docker image collection contains multiple @.tar@ files, it will cause an error at runtime, "cannot choose from multiple tar files in image collection" (previously one of the @.tar@ files was selected). Subdirectories are ignored. The @arv keep docker@ command always creates a collection with a single @.tar@ file, and never uses subdirectories, so this change will not affect most users.
+
+h2(#v2_2_0). v2.2.0 (2021-06-03)
+
+"previous: Upgrading to 2.1.0":#v2_1_0
+
+h3. New spelling of S3 credential configs