Once this upgrade process is complete, sites and VOs can work on
 transitioning to token authentication.
 
-1. Both client and CE should upgrade to HTCondor 9.0.19. This new release
+1. Both client and CE should upgrade to HTCondor 9.0.20. This new release
 adds a couple minor features to enable use of a proxy with plain SSL
 authentication.
-HTCondor 9.0.19 is a special release intended specifically to help CEs upgrade
+HTCondor 9.0.20 is a special release intended specifically to help CEs upgrade
 to HTCondor 10 with SSL authentication using proxies.
 It is hosted in a private repository.
 
@@ -48,12 +48,13 @@
 that's used to submit the grid universe job to the local schedd.
 
 3. The CE must be configured to accept proxy certificates and use grid
-credentials for SSL authentication. The following parameter should be set
+credentials for SSL authentication. The following parameters should be set
 in the HTCondor-CE configuration files:
 
   AUTH_SSL_ALLOW_CLIENT_PROXY = True
+  AUTH_SSL_REQUIRE_CLIENT_MAPPING = True
 
-You can put this parameter in the new file
+You can put these parameters in the new file
 /etc/condor-ce/config.d/90-ssl-auth
 
 In addition, ensure the following parameters are uncommented in
@@ -107,12 +108,6 @@
   SCHEDD.SEC_READ_AUTHENTICATION_METHODS = FS,TOKEN,SCITOKENS,SSL,GSI
   SCHEDD.AUTH_SSL_REQUIRE_CLIENT_CERTIFICATE = True
 
-Note that when using GSI as a fallback, a client should not be configured
-to use proxies with SSL authentication until the HTCondor-CE's mapfile has
-been updated to map the client's DNs. Otherwise, the SSL authentication
-will succeed with a mapped identity of 'unmapped@ssl', which will not be
-authorized.
-
 6. Once all of the peers of a given client or CE are authenticating
 successfully via SSL, you can upgrade to HTCondor-CE 6 and HTCondor 10.X.
 In order to use EGI Check-In tokens, the CE needs to be running HTCondor 10.4.0 or later.