diff --git a/CHANGELOG.md b/CHANGELOG.md
index e7fa49e1..9c10d78e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,13 +1,16 @@
 CHANGELOG
 =========
 
-In Development
---------------
+v0.50 (September 25, 2020)
+--------------------------
+
+Setup:
+
+* When upgrading from versions before v0.40, setup will now warn that ownCloud/Nextcloud data cannot be migrated rather than failing the installation.
 
 Mail:
 
 * An MTA-STS policy for incoming mail is now published (in DNS and over HTTPS) when the primary hostname and email address domain both have a signed TLS certificate installed, allowing senders to know that an encrypted connection should be enforced.
-* MTA-STS reporting is enabled with reports sent to administrator@ the primary hostname.
 * The per-IP connection limit to the IMAP server has been doubled to allow more devices to connect at once, especially with multiple users behind a NAT.
 
 DNS:
@@ -21,6 +24,7 @@ TLS:
 
 Control Panel:
 
+* The control panel API is now fully documented at https://mailinabox.email/api-docs.html.
 * User passwords can now have spaces.
 * Status checks for automatic subdomains have been moved into the section for the parent domain.
 * Typo fixed.
diff --git a/README.md b/README.md
index f133df9a..1c82e9e7 100644
--- a/README.md
+++ b/README.md
@@ -30,6 +30,7 @@ Copy the file `setup/mods.available/remote-nextcloud-use-miab.sh` to the Nextclo
 
 On MiaB-LDAP, a one-time change must be applied manually to allow the remote Nextcloud to query the LDAP server because the default MiaB-LDAP installation doesn't allow any remote LDAP access. As root, run the following: `ufw allow proto tcp from $ip to any port ldaps`, where $ip is the ip-address of your Nextcloud server.
 
+It also supports static website hosting since the box is serving HTTPS anyway. (To serve a website for your domains elsewhere, just add a custom DNS "A" record in you Mail-in-a-Box's control panel to point domains to another server.)
 
 ## Under-the-Hood
 
diff --git a/management/dns_update.py b/management/dns_update.py
index d3a244a2..c81b215a 100755
--- a/management/dns_update.py
+++ b/management/dns_update.py
@@ -352,14 +352,10 @@ def build_zone(domain, all_domains, additional_records, www_redirect_domains, en
 			("_mta-sts", "TXT", "v=STSv1; id=" + mta_sts_policy_id, "Optional. Part of the MTA-STS policy for incoming mail. If set, a MTA-STS policy must also be published.")
 		])
 
-		# Rules can be custom configured accoring to https://tools.ietf.org/html/rfc8460.
+		# Enable SMTP TLS reporting (https://tools.ietf.org/html/rfc8460) if the user has set a config option.
 		# Skip if the rules below if the user has set a custom _smtp._tls record.
-		if not has_rec("_smtp._tls", "TXT", prefix="v=TLSRPTv1;"):
-			tls_rpt_string = ""
-			tls_rpt_email = env.get("MTA_STS_TLSRPT_EMAIL", "postmaster@%s" % env['PRIMARY_HOSTNAME'])
-			if tls_rpt_email: # if a reporting address is not cleared
-				tls_rpt_string = " rua=mailto:%s" % tls_rpt_email
-			mta_sts_records.append(("_smtp._tls", "TXT", "v=TLSRPTv1;%s" % tls_rpt_string, "Optional. Enables MTA-STS reporting."))
+		if env.get("MTA_STS_TLSRPT_RUA") and not has_rec("_smtp._tls", "TXT", prefix="v=TLSRPTv1;"):
+			mta_sts_records.append(("_smtp._tls", "TXT", "v=TLSRPTv1; rua=" + env["MTA_STS_TLSRPT_RUA"], "Optional. Enables MTA-STS reporting."))
 	for qname, rtype, value, explanation in mta_sts_records:
 		if value is None or value.strip() == "": continue # skip IPV6 if not set
 		if not has_rec(qname, rtype):
diff --git a/setup/bootstrap.sh b/setup/bootstrap.sh
index 7f4364a9..65fc593b 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=v0.48
+		TAG=v0.50
 
 	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 88a967f5..cb8e7c53 100755
--- a/setup/nextcloud.sh
+++ b/setup/nextcloud.sh
@@ -139,11 +139,11 @@ if [ ! -d /usr/local/lib/owncloud/ ] || [[ ! ${CURRENT_NEXTCLOUD_VER} =~ ^$nextc
 		# Database migrations from ownCloud are no longer possible because ownCloud cannot be run under
 		# PHP 7.
 		if [[ ${CURRENT_NEXTCLOUD_VER} =~ ^[89] ]]; then
-			echo "Upgrades from Mail-in-a-Box prior to v0.28 (dated July 30, 2018) with Nextcloud < 13.0.6 (you have ownCloud 8 or 9) are not supported. Upgrade to Mail-in-a-Box version v0.30 first. Setup aborting."
-			exit 1
+			echo "Upgrades from Mail-in-a-Box prior to v0.28 (dated July 30, 2018) with Nextcloud < 13.0.6 (you have ownCloud 8 or 9) are not supported. Upgrade to Mail-in-a-Box version v0.30 first. Setup will continue, but skip the Nextcloud migration."
+			return 0
 		elif [[ ${CURRENT_NEXTCLOUD_VER} =~ ^1[012] ]]; then
-			echo "Upgrades from Mail-in-a-Box prior to v0.28 (dated July 30, 2018) with Nextcloud < 13.0.6 (you have ownCloud 10, 11 or 12) are not supported. Upgrade to Mail-in-a-Box version v0.30 first. Setup aborting."
-			exit 1
+			echo "Upgrades from Mail-in-a-Box prior to v0.28 (dated July 30, 2018) with Nextcloud < 13.0.6 (you have ownCloud 10, 11 or 12) are not supported. Upgrade to Mail-in-a-Box version v0.30 first. Setup will continue, but skip the Nextcloud migration."
+			return 0
 		elif [[ ${CURRENT_NEXTCLOUD_VER} =~ ^13 ]]; then
 			# If we are running Nextcloud 13, upgrade to Nextcloud 14
 			InstallNextcloud 14.0.6 4e43a57340f04c2da306c8eea98e30040399ae5a