diff --git a/MOVED b/MOVED
index 6eb7f1eb6b3..dd4e4f7e2d5 100644
--- a/MOVED
+++ b/MOVED
@@ -15796,3 +15796,4 @@ news/py-sabyenc|news/py-sabyenc3|2020-12-12|Has expired: Uses deprecated version
 devel/py-gobject||2020-12-12|Has expired: Uses deprecated version of python
 games/gemrb||2020-12-18|Has expired: Uses deprecated version of python
 net/iplog||2020-12-18|Has expired: Unmaintained and dead upstream. Does not build with modern compilers.
+www/rubygem-rack21|www/rubygem-rack|2020-12-18|Obsolete, please use www/rubygem-rack
diff --git a/Mk/bsd.default-versions.mk b/Mk/bsd.default-versions.mk
index cb0f5e63706..d620d051061 100644
--- a/Mk/bsd.default-versions.mk
+++ b/Mk/bsd.default-versions.mk
@@ -75,8 +75,8 @@ LINUX_DEFAULT?=		c7
 LLVM_DEFAULT?=		90
 # Possible values: 5.1, 5.2, 5.3, 5.4
 LUA_DEFAULT?=		5.2
-# Possible values: 5.10 (not yet committed), 5.20, 6.8
-MONO_DEFAULT=		5.20
+# Possible values: 5.10, 5.20, 6.8
+MONO_DEFAULT=		5.10
 # Possible values: 5.5, 5.6, 5.7, 8.0, 10.3m, 10.4m, 10.5m, 5.5p, 5.6p, 5.7p, 5.6w, 5.7w
 MYSQL_DEFAULT?=		5.7
 # Possible values: 5.28, 5.30, 5.32, devel
diff --git a/UPDATING b/UPDATING
index 9a3ad327e61..8e1e5077aaa 100644
--- a/UPDATING
+++ b/UPDATING
@@ -5,6 +5,16 @@ they are unavoidable.
 You should get into the habit of checking this file for changes each time
 you update your ports collection, before attempting any port upgrades.
 
+20201218:
+  AFFECTS: users of www/qt5-webengine
+  AUTHOR: kai@FreeBSD.org
+
+  Users that upgrade www/qt5-webengine without using pkg/poudriere might
+  experience failures due to conflicts with the installed version of 5.15.2.
+
+  In that case, pkg delete -f the qt5-webengine package before building
+  the updated version.
+
 20201130:
   AFFECTS: users of graphics/jpeg
   AUTHOR: rene@FreeBSD.org