diff --git a/CHANGELOG.md b/CHANGELOG.md
index 520c05a..fd8b65a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,10 +1,23 @@
 CHANGELOG
 =========
 
-In Development
---------------
+Version 57 (June 12, 2022)
+--------------------------
+
+Setup:
+
+* Fixed issue upgrading from Mail-in-a-Box v0.40-v0.50 because of a changed URL that Nextcloud is downloaded from.
+
+Backups:
 
 * Fixed S3 backups which broke with duplicity 0.8.23.
+* Fixed Backblaze backups which broke with latest b2sdk package by rolling back its version.
+
+Control panel:
+
+* Fixed spurious changes in system status checks messages by sorting DNSSEC DS records.
+* Fixed fail2ban lockout over IPv6 from excessive loads of the system status checks.
+* Fixed an incorrect IPv6 system status check message.
 
 Version 56 (January 19, 2022)
 -----------------------------
diff --git a/README.md b/README.md
index d2271d1..02a274a 100644
--- a/README.md
+++ b/README.md
@@ -60,7 +60,7 @@ Clone this repository and checkout the tag corresponding to the most recent rele
 
 	$ git clone https://github.com/mail-in-a-box/mailinabox
 	$ cd mailinabox
-	$ git checkout v56
+	$ git checkout v57
 
 Begin the installation.
 
diff --git a/setup/bootstrap.sh b/setup/bootstrap.sh
index b90b1ac..6629444 100644
--- a/setup/bootstrap.sh
+++ b/setup/bootstrap.sh
@@ -20,7 +20,7 @@ if [ -z "$TAG" ]; then
 	# want to display in status checks.
 	if [ "$(lsb_release -d | sed 's/.*:\s*//' | sed 's/18\.04\.[0-9]/18.04/' )" == "Ubuntu 18.04 LTS" ]; then
 		# This machine is running Ubuntu 18.04.
-		TAG=v56
+		TAG=v57
 
 	elif [ "$(lsb_release -d | sed 's/.*:\s*//' | sed 's/14\.04\.[0-9]/14.04/' )" == "Ubuntu 14.04 LTS" ]; then
 		# This machine is running Ubuntu 14.04.
diff --git a/setup/nextcloud.sh b/setup/nextcloud.sh
index 7116c17..5525a37 100755
--- a/setup/nextcloud.sh
+++ b/setup/nextcloud.sh
@@ -28,7 +28,7 @@ nextcloud_hash=92cac708915f51ee2afc1787fd845476fd090c81
 # --------------
 # * Find the most recent tag that is compatible with the Nextcloud version above by
 #   consulting the <dependencies>...<nextcloud> node at:
-#   https://github.com/nextcloud-releases/contacts/blob/maaster/appinfo/info.xml
+#   https://github.com/nextcloud-releases/contacts/blob/master/appinfo/info.xml
 #   https://github.com/nextcloud-releases/calendar/blob/master/appinfo/info.xml
 #   https://github.com/nextcloud/user_external/blob/master/appinfo/info.xml
 # * The hash is the SHA1 hash of the ZIP package, which you can find by just running this script and