10 files changed, 13 insertions, 12 deletions
diff --git a/Master/tlpkg/TeXLive/TLConfig.pm b/Master/tlpkg/TeXLive/TLConfig.pm
index 14f2cbc166f..b9e339cdd3e 100644
--- a/Master/tlpkg/TeXLive/TLConfig.pm
+++ b/Master/tlpkg/TeXLive/TLConfig.pm
@@ -57,11 +57,11 @@ BEGIN {
 
 # the year of our release, will be used in the location of the
 # network packages, and in menu names, and other places.
-$ReleaseYear = 2019;
+$ReleaseYear = 2020;
 
 # users can upgrade from this year to the current year; might be the
 # same as the release year, or any number of releases earlier.
-# Generally not tested.
+# Generally not tested, but should be.
 $MinRelease = 2016;
 
 # Meta Categories do not ship files, but only call for other packages.
@@ -161,7 +161,7 @@ our %TLPDBConfigs = (
   "container_format" => $DefaultCompressorFormat,
   "minrelease" => $MinRelease,
   "release" => $ReleaseYear,
-  "frozen" => 1,
+  "frozen" => 0,
 );
 
 # definition of the option strings and their value types 
diff --git a/Master/tlpkg/TeXLive/TLUtils.pm b/Master/tlpkg/TeXLive/TLUtils.pm
index d4ad4a4b47f..409304c980f 100644
--- a/Master/tlpkg/TeXLive/TLUtils.pm
+++ b/Master/tlpkg/TeXLive/TLUtils.pm
@@ -337,7 +337,7 @@ sub platform_name {
     # We don't use uname numbers here.)
     #
     # this changes each year, per above:
-    my $mactex_darwin = 12;  # lowest minor rev supported by x86_64-darwin.
+    my $mactex_darwin = 13;  # lowest minor rev supported by x86_64-darwin.
     #
     # Most robust approach is apparently to check sw_vers (os version,
     # returns "10.x" values), and sysctl (processor hardware).
@@ -413,7 +413,7 @@ sub platform_desc {
     'universal-darwin' => 'MacOSX universal binaries',
     'win32'            => 'Windows',
     'x86_64-cygwin'    => 'Cygwin on x86_64',
-    'x86_64-darwin'       => 'MacOSX current (10.12-) on x86_64',
+    'x86_64-darwin'       => 'MacOSX current (10.13-) on x86_64',
     'x86_64-darwinlegacy' => 'MacOSX legacy (10.6-) on x86_64',
     'x86_64-linux'     => 'GNU/Linux on x86_64',
     'x86_64-linuxmusl' => 'GNU/Linux on x86_64 with musl',
diff --git a/Master/tlpkg/bin/tl-update-images b/Master/tlpkg/bin/tl-update-images
index 72a9b623835..4348b58811a 100755
--- a/Master/tlpkg/bin/tl-update-images
+++ b/Master/tlpkg/bin/tl-update-images
@@ -2,7 +2,7 @@
 # $Id$
 # Create the .iso image(s) for TeX Live.
 # 
-# Copyright 2007-2019 Karl Berry.
+# Copyright 2007-2020 Karl Berry.
 # Copyright 2003, 2004, 2005 Sebastian Rahtz.
 #
 # This file is licensed under the GNU General Public License version 2
@@ -12,7 +12,7 @@
 # Historical notes at the end of the script.
 
 NAME=texlive
-V=2019
+V=2020
 D=`date +%Y%m%d`
 target=/home/ftp/texlive/Images/test
 
diff --git a/Master/tlpkg/bin/tl-update-messages b/Master/tlpkg/bin/tl-update-messages
index 4d290326cd4..453bdc232bc 100755
--- a/Master/tlpkg/bin/tl-update-messages
+++ b/Master/tlpkg/bin/tl-update-messages
@@ -23,7 +23,7 @@ cat install-tl >>$tmpfile
 xgettext -o tlpkg/translations/messages.pot	\
 	--copyright-holder="TeX Live Team"	\
 	--msgid-bugs-address=tex-live@tug.org	\
-	--package-version=2019			\
+	--package-version=2020			\
 	--package-name="TeX Live"		\
         -k__ -k\$__ -k%__ -k__x -k__n:1,2 -k__nx:1,2 -k__xn:1,2 -kN__ -k  \
        tlpkg/installer/tracked-install.pl \
diff --git a/Master/tlpkg/bin/tl-update-tlnet b/Master/tlpkg/bin/tl-update-tlnet
index b7e83037b24..649e632d289 100755
--- a/Master/tlpkg/bin/tl-update-tlnet
+++ b/Master/tlpkg/bin/tl-update-tlnet
@@ -1,5 +1,5 @@
 #!/bin/sh -e
-# Copyright 2008-2019 Norbert Preining
+# Copyright 2008-2020 Norbert Preining
 # This file is licensed under the GNU General Public License version 2
 # or any later version.
 # 
@@ -13,7 +13,7 @@ renice 20 $$ >/dev/null 2>&1
 unset CDPATH
 unset LS_COLORS
 
-yyyy=2019
+yyyy=2020
 
 check_consistency=true
 chicken=false
@@ -145,7 +145,7 @@ tlpdbopt_install_srcfiles 1
 tlpdbopt_create_formats 1
 instopt_letter 0
 instopt_adjustpath 0
-instopt_adjustrepo 1
+instopt_adjustrepo 0
 " >texlive.profile
 
 # silence envvar warnings and the welcome message.
diff --git a/Master/tlpkg/doc/graphics/texlive-installer-graphics-horiz.png b/Master/tlpkg/doc/graphics/texlive-installer-graphics-horiz.png
index 1553576ce8d..e02c89936c2 100644
--- a/Master/tlpkg/doc/graphics/texlive-installer-graphics-horiz.png
+++ b/Master/tlpkg/doc/graphics/texlive-installer-graphics-horiz.png
diff --git a/Master/tlpkg/doc/graphics/texlive-installer-graphics-vert.png b/Master/tlpkg/doc/graphics/texlive-installer-graphics-vert.png
index eb8b46b8423..8cfe304b75a 100644
--- a/Master/tlpkg/doc/graphics/texlive-installer-graphics-vert.png
+++ b/Master/tlpkg/doc/graphics/texlive-installer-graphics-vert.png
diff --git a/Master/tlpkg/doc/graphics/texlive-installer-graphics.pdf b/Master/tlpkg/doc/graphics/texlive-installer-graphics.pdf
index 3d886f0038e..cb05422882b 100644
--- a/Master/tlpkg/doc/graphics/texlive-installer-graphics.pdf
+++ b/Master/tlpkg/doc/graphics/texlive-installer-graphics.pdf
diff --git a/Master/tlpkg/doc/releng.txt b/Master/tlpkg/doc/releng.txt
index 21eb44fd412..84591a980ba 100644
--- a/Master/tlpkg/doc/releng.txt
+++ b/Master/tlpkg/doc/releng.txt
@@ -78,8 +78,9 @@ Update /home/ftp/texlive/tlpretest/README.
 Empty tlpretest except for that README and 00_TIME.txt (used for mirmon).
 
 2. Prepare for pretest in cron.tl:
-critical=--critical	 # push tlcritical
+critical=--critical	 # push tlcritical, if needed/desired
 pretest=--pretest	 # update tlpretest, not tlnet (if not frozen)
+catalogue_update=true    # at least the first day, resync catalogue
 net_frozen=false 	 # update tlnet|tlpretest (per $pretest)
 (tlcritical will remain getting updated daily, even though it doesn't
  work with tlnet any more.  That's ok.  Or disable if you prefer.)
diff --git a/Master/tlpkg/installer/texlive.png b/Master/tlpkg/installer/texlive.png
index eb8603ab6b9..0d7e4ebba17 100644
--- a/Master/tlpkg/installer/texlive.png
+++ b/Master/tlpkg/installer/texlive.png