18702: Merge branch 'main' into 18702-document-upgrades

Arvados-DCO-1.1-Signed-off-by: Ward Vandewege <ward@curii.com>

diff --cc doc/admin/upgrading.html.textile.liquid
index cf5ef55c1f39c20c8188284c26ac27ddd03310e3,05b932a116bea3578dbf3e21563f6745eef80208..5c2a36f4fc693e221056ce609075c7f8475326cb
--- 1/doc/admin/upgrading.html.textile.liquid
--- 2/doc/admin/upgrading.html.textile.liquid
+++ b/doc/admin/upgrading.html.textile.liquid
@@@ -28,10 -35,14 +28,14 @@@ TODO: extract this information based o
  <div class="releasenotes">
  </notextile>
  
- h2(#main). development main (as of 2021-11-10)
+ h2(#main). development main (as of 2022-02-10)
  
 -"previous: Upgrading from 2.3.0":#v2_3_0
 +"previous: Upgrading to 2.3.0":#v2_3_0
  
+ h3. Anonymous token changes
+ 
+ The anonymous token configured in @Users.AnonymousUserToken@ must now be 32 characters or longer. This was already the suggestion in the documentation, now it is enforced. The @script/get_anonymous_user_token.rb@ script that was needed to register the anonymous user token in the database has been removed. Registration of the anonymous token is no longer necessary.
+ 
  h3. Preemptible instance types are used automatically, if any are configured
  
  The default behavior for selecting "preemptible instances":{{site.baseurl}}/admin/spot-instances.html has changed. If your configuration lists any instance types with @Preemptible: true@, all child (non-top-level) containers will automatically be scheduled on preemptible instances. To avoid using preemptible instances except when explicitly requested by clients, add @AlwaysUsePreemptibleInstances: false@ in the @Containers@ config section. (Previously, preemptible instance types were never used unless the configuration specified @UsePreemptibleInstances: true@. That flag has been removed.)