diff --git a/cmake/platforms/OSX.cmake b/cmake/platforms/OSX.cmake
index 98cd543f9..67265463a 100644
--- a/cmake/platforms/OSX.cmake
+++ b/cmake/platforms/OSX.cmake
@@ -1,51 +1,51 @@
 # Copyright (c) 2017 The Bitcoin developers
 
 set(CMAKE_SYSTEM_NAME Darwin)
 set(CMAKE_SYSTEM_PROCESSOR x86_64)
-set(TOOLCHAIN_PREFIX ${CMAKE_SYSTEM_PROCESSOR}-apple-darwin14)
+set(TOOLCHAIN_PREFIX ${CMAKE_SYSTEM_PROCESSOR}-apple-darwin16)
 
 # On OSX, we use clang by default.
 set(CMAKE_C_COMPILER clang)
 set(CMAKE_CXX_COMPILER clang++)
 
 set(CMAKE_C_COMPILER_TARGET ${TOOLCHAIN_PREFIX})
 set(CMAKE_CXX_COMPILER_TARGET ${TOOLCHAIN_PREFIX})
 
 # On OSX we use various stuff from Apple's SDK.
 set(OSX_SDK_PATH "${CMAKE_CURRENT_SOURCE_DIR}/depends/SDKs/MacOSX10.11.sdk")
 set(CMAKE_OSX_SYSROOT ${OSX_SDK_PATH})
-set(CMAKE_OSX_DEPLOYMENT_TARGET 10.10)
+set(CMAKE_OSX_DEPLOYMENT_TARGET 10.12)
 set(CMAKE_OSX_ARCHITECTURES x86_64)
 
 # target environment on the build host system
 #   set 1st to dir with the cross compiler's C/C++ headers/libs
 set(CMAKE_FIND_ROOT_PATH "${CMAKE_CURRENT_SOURCE_DIR}/depends/${TOOLCHAIN_PREFIX};${OSX_SDK_PATH}")
 
 # We also may have built dependencies for the native plateform.
 set(CMAKE_PREFIX_PATH "${CMAKE_CURRENT_SOURCE_DIR}/depends/${TOOLCHAIN_PREFIX}/native")
 
 # modify default behavior of FIND_XXX() commands to
 # search for headers/libs in the target environment and
 # search for programs in the build host environment
 set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
 set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
 set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
 
 # Sysroot clang
 set(OSX_EXTRA_FLAGS
 	" -mlinker-version=253.9"
 )
 
 string(APPEND CMAKE_C_FLAGS_INIT ${OSX_EXTRA_FLAGS})
 string(APPEND CMAKE_CXX_FLAGS_INIT ${OSX_EXTRA_FLAGS} " -stdlib=libc++")
 
 # Ensure we use an OSX specific version the binary manipulation tools.
 find_program(CMAKE_AR ${TOOLCHAIN_PREFIX}-ar)
 find_program(CMAKE_INSTALL_NAME_TOOL ${TOOLCHAIN_PREFIX}-install_name_tool)
 find_program(CMAKE_LINKER ${TOOLCHAIN_PREFIX}-ld)
 find_program(CMAKE_NM ${TOOLCHAIN_PREFIX}-nm)
 find_program(CMAKE_OBJCOPY ${TOOLCHAIN_PREFIX}-objcopy)
 find_program(CMAKE_OBJDUMP ${TOOLCHAIN_PREFIX}-objdump)
 find_program(CMAKE_OTOOL ${TOOLCHAIN_PREFIX}-otool)
 find_program(CMAKE_RANLIB ${TOOLCHAIN_PREFIX}-ranlib)
 find_program(CMAKE_STRIP ${TOOLCHAIN_PREFIX}-strip)
diff --git a/contrib/gitian-descriptors/gitian-osx.yml b/contrib/gitian-descriptors/gitian-osx.yml
index 77eda9590..07636f98f 100644
--- a/contrib/gitian-descriptors/gitian-osx.yml
+++ b/contrib/gitian-descriptors/gitian-osx.yml
@@ -1,205 +1,205 @@
 ---
 name: "bitcoin-abc-osx"
 enable_cache: true
 distro: "debian"
 suites:
 - "buster"
 architectures:
 - "amd64"
 packages:
 - "autoconf"
 - "automake"
 - "bsdmainutils"
 - "ca-certificates"
 - "cmake"
 - "curl"
 - "faketime"
 - "fonts-tuffy"
 - "g++"
 - "git"
 - "imagemagick"
 - "libbz2-dev"
 - "libcap-dev"
 - "librsvg2-bin"
 - "libtiff-tools"
 - "libtinfo5"
 - "libtool"
 - "libz-dev"
 - "ninja-build"
 - "pkg-config"
 - "python3"
 - "python3-dev"
 - "python3-setuptools"
 # FIXME: these dependencies are only required to make CMake happy when building
 # native tools. They can be removed when the `NativeExecutable.cmake` gets
 # improved to avoid requiring all the bitcoin-abc dependencies.
 - "libboost-all-dev"
 - "libevent-dev"
 - "libssl-dev"
 remotes:
 - "url": "https://github.com/Bitcoin-ABC/bitcoin-abc.git"
   "dir": "bitcoin"
 files:
 - "MacOSX10.11.sdk.tar.gz"
 script: |
   WRAP_DIR=$HOME/wrapped
-  HOSTS="x86_64-apple-darwin14"
+  HOSTS="x86_64-apple-darwin16"
 
   # CMake toolchain file name differ from host name
   declare -A CMAKE_TOOLCHAIN_FILE
   CMAKE_TOOLCHAIN_FILE[x86_64-apple-darwin14]=OSX.cmake
 
   INSTALL_COMPONENTS="bitcoind bitcoin-qt bitcoin-seeder"
 
   FAKETIME_HOST_PROGS=""
   FAKETIME_PROGS="ar ranlib date dmg genisoimage"
 
   export QT_RCC_TEST=1
   export QT_RCC_SOURCE_DATE_OVERRIDE=1
   export GZIP="-9n"
   export TAR_OPTIONS="--mtime="$REFERENCE_DATE\\\ $REFERENCE_TIME""
   export TZ="UTC"
   export BUILD_DIR=`pwd`
   mkdir -p ${WRAP_DIR}
   if test -n "$GBUILD_CACHE_ENABLED"; then
     export SOURCES_PATH=${GBUILD_COMMON_CACHE}
     export BASE_CACHE=${GBUILD_PACKAGE_CACHE}
     mkdir -p ${BASE_CACHE} ${SOURCES_PATH}
   fi
 
   export ZERO_AR_DATE=1
 
   function create_global_faketime_wrappers {
   for prog in ${FAKETIME_PROGS}; do
     echo '#!/usr/bin/env bash' > ${WRAP_DIR}/${prog}
     echo "REAL=\`which -a ${prog} | grep -v ${WRAP_DIR}/${prog} | head -1\`" >> ${WRAP_DIR}/${prog}
     echo 'export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/faketime/libfaketime.so.1' >> ${WRAP_DIR}/${prog}
     echo "export FAKETIME=\"$1\"" >> ${WRAP_DIR}/${prog}
     echo "\$REAL \$@" >> $WRAP_DIR/${prog}
     chmod +x ${WRAP_DIR}/${prog}
   done
   }
 
   function create_per-host_faketime_wrappers {
   for i in $HOSTS; do
     for prog in ${FAKETIME_HOST_PROGS}; do
         echo '#!/usr/bin/env bash' > ${WRAP_DIR}/${i}-${prog}
         echo "REAL=\`which -a ${i}-${prog} | grep -v ${WRAP_DIR}/${i}-${prog} | head -1\`" >> ${WRAP_DIR}/${i}-${prog}
         echo 'export LD_PRELOAD=/usr/lib/x86_64-linux-gnu/faketime/libfaketime.so.1' >> ${WRAP_DIR}/${i}-${prog}
         echo "export FAKETIME=\"$1\"" >> ${WRAP_DIR}/${i}-${prog}
         echo "\$REAL \$@" >> $WRAP_DIR/${i}-${prog}
         chmod +x ${WRAP_DIR}/${i}-${prog}
     done
   done
   }
 
   # Faketime for depends so intermediate results are comparable
   export PATH_orig=${PATH}
   create_global_faketime_wrappers "2000-01-01 12:00:00"
   create_per-host_faketime_wrappers "2000-01-01 12:00:00"
   export PATH=${WRAP_DIR}:${PATH}
 
   cd bitcoin
   SOURCEDIR=`pwd`
   BASEPREFIX=`pwd`/depends
 
   mkdir -p ${BASEPREFIX}/SDKs
   tar -C ${BASEPREFIX}/SDKs -xf ${BUILD_DIR}/MacOSX10.11.sdk.tar.gz
 
   # Build dependencies for each host
   for i in $HOSTS; do
     make ${MAKEOPTS} -C ${BASEPREFIX} HOST="${i}"
   done
 
   # Faketime for binaries
   export PATH=${PATH_orig}
   create_global_faketime_wrappers "${REFERENCE_DATETIME}"
   create_per-host_faketime_wrappers "${REFERENCE_DATETIME}"
   export PATH=${WRAP_DIR}:${PATH}
 
   mkdir -p source_package
   pushd source_package
   cmake -GNinja .. \
     -DBUILD_BITCOIN_WALLET=OFF \
     -DBUILD_BITCOIN_ZMQ=OFF \
     -DBUILD_BITCOIN_ZMQ=OFF \
     -DBUILD_BITCOIN_SEEDER=OFF \
     -DBUILD_BITCOIN_CLI=OFF \
     -DBUILD_BITCOIN_TX=OFF \
     -DBUILD_BITCOIN_QT=OFF \
     -DBUILD_LIBBITCOINCONSENSUS=OFF \
     -DENABLE_CLANG_TIDY=OFF \
     -DENABLE_QRCODE=OFF \
     -DENABLE_UPNP=OFF
   ninja package_source
   SOURCEDIST=`echo bitcoin-abc-*.tar.gz`
   mv ${SOURCEDIST} ..
   popd
   DISTNAME=`echo ${SOURCEDIST} | sed 's/.tar.*//'`
 
   # Correct tar file order
   mkdir -p temp
   pushd temp
   tar xf ../$SOURCEDIST
   find bitcoin-abc-* | sort | tar --no-recursion --mode='u+rw,go+r-w,a+X' --owner=0 --group=0 -c -T - | gzip -9n > ../$SOURCEDIST
   popd
 
   ORIGPATH="$PATH"
   # Extract the release tarball into a dir for each host and build
   for i in ${HOSTS}; do
     export PATH=${BASEPREFIX}/${i}/native/bin:${ORIGPATH}
     mkdir -p distsrc-${i}
     cd distsrc-${i}
     INSTALLPATH=`pwd`/installed/${DISTNAME}
     mkdir -p ${INSTALLPATH}
     tar --strip-components=1 -xf ../$SOURCEDIST
 
     cmake -GNinja .. \
       -DCMAKE_TOOLCHAIN_FILE=${SOURCEDIR}/cmake/platforms/${CMAKE_TOOLCHAIN_FILE[${i}]} \
       -DCLIENT_VERSION_IS_RELEASE=ON \
       -DENABLE_CLANG_TIDY=OFF \
       -DENABLE_REDUCE_EXPORTS=ON \
       -DCMAKE_INSTALL_PREFIX=${INSTALLPATH} \
       -DCCACHE=OFF \
       -DGENISOIMAGE_EXECUTABLE="${WRAP_DIR}/genisoimage"
 
     ninja
 
     for _component in ${INSTALL_COMPONENTS}; do
        cmake -DCOMPONENT=${_component} -P cmake_install.cmake
     done
 
     export PYTHONPATH="${BASEPREFIX}/${i}/native/lib/python3/dist-packages:${PYTHONPATH}"
     ninja osx-deploydir
 
     OSX_VOLNAME="$(cat osx_volname)"
     mkdir -p unsigned-app-${i}
     cp osx_volname unsigned-app-${i}/
     cp contrib/macdeploy/detached-sig-apply.sh unsigned-app-${i}
     cp contrib/macdeploy/detached-sig-create.sh unsigned-app-${i}
     cp ${BASEPREFIX}/${i}/native/bin/dmg ${BASEPREFIX}/${i}/native/bin/genisoimage unsigned-app-${i}
     cp ${BASEPREFIX}/${i}/native/bin/${i}-codesign_allocate unsigned-app-${i}/codesign_allocate
     cp ${BASEPREFIX}/${i}/native/bin/${i}-pagestuff unsigned-app-${i}/pagestuff
     mv dist unsigned-app-${i}
     pushd unsigned-app-${i}
     find . | sort | tar --no-recursion --mode='u+rw,go+r-w,a+X' --owner=0 --group=0 -c -T - | gzip -9n > ${OUTDIR}/${DISTNAME}-osx-unsigned.tar.gz
     popd
 
     ninja osx-dmg
     ${WRAP_DIR}/dmg dmg "${OSX_VOLNAME}.dmg" ${OUTDIR}/${DISTNAME}-osx-unsigned.dmg
 
     cd installed
     # The install/strip target should do exactly that. However there is a bug in
     # in the Buster CMake version that causes strip to be called with the wrong
     # parameters when an Apple strip tool is used. This is fixed starting with
     # CMake versions >= 3.14, see:
     # https://gitlab.kitware.com/cmake/cmake/merge_requests/2892
     find -path "*.app*" -type f -executable -exec mv {} ${DISTNAME}/bin/bitcoin-qt \;
     find ${DISTNAME}/bin -type f -executable -exec ${i}-strip -u -r {} \;
     find ${DISTNAME}/lib -type f -executable -exec ${i}-strip -x {} \;
     find ${DISTNAME} -not -path "*.app*" | sort | tar --no-recursion --mode='u+rw,go+r-w,a+X' --owner=0 --group=0 -c -T - | gzip -9n > ${OUTDIR}/${DISTNAME}-${i}.tar.gz
     cd ../../
   done
   mkdir -p $OUTDIR/src
   mv $SOURCEDIST $OUTDIR/src
   mv ${OUTDIR}/${DISTNAME}-x86_64-*.tar.gz ${OUTDIR}/${DISTNAME}-osx64.tar.gz
diff --git a/depends/Makefile b/depends/Makefile
index ef12009ba..35483eb38 100644
--- a/depends/Makefile
+++ b/depends/Makefile
@@ -1,205 +1,205 @@
 .NOTPARALLEL :
 
 SOURCES_PATH ?= $(BASEDIR)/sources
 BASE_CACHE ?= $(BASEDIR)/built
 SDK_PATH ?= $(BASEDIR)/SDKs
 NO_QT ?=
 RAPIDCHECK ?=
 NO_WALLET ?=
 NO_UPNP ?=
 FALLBACK_DOWNLOAD_PATH ?= https://download.bitcoinabc.org/depends-sources
 
 BUILD = $(shell ./config.guess)
 HOST ?= $(BUILD)
 PATCHES_PATH = $(BASEDIR)/patches
 BASEDIR = $(CURDIR)
 HASH_LENGTH:=11
 DOWNLOAD_CONNECT_TIMEOUT:=30
 DOWNLOAD_RETRIES:=3
 HOST_ID_SALT ?= salt
 BUILD_ID_SALT ?= salt
 JOBS ?= $(shell echo $$(($(shell nproc 2> /dev/null || sysctl -n hw.ncpu 2> /dev/null || echo 0) + 1)))
 
 host:=$(BUILD)
 ifneq ($(HOST),)
 host:=$(HOST)
 host_toolchain:=$(HOST)-
 endif
 
 ifneq ($(DEBUG),)
 release_type=debug
 else
 release_type=release
 endif
 
 base_build_dir=$(BASEDIR)/work/build
 base_staging_dir=$(BASEDIR)/work/staging
 base_download_dir=$(BASEDIR)/work/download
 canonical_host:=$(shell ./config.sub $(HOST))
 build:=$(shell ./config.sub $(BUILD))
 
 build_arch =$(firstword $(subst -, ,$(build)))
 build_vendor=$(word 2,$(subst -, ,$(build)))
 full_build_os:=$(subst $(build_arch)-$(build_vendor)-,,$(build))
 build_os:=$(findstring linux,$(full_build_os))
 build_os+=$(findstring darwin,$(full_build_os))
 build_os:=$(strip $(build_os))
 ifeq ($(build_os),)
 build_os=$(full_build_os)
 endif
 
 host_arch=$(firstword $(subst -, ,$(canonical_host)))
 host_vendor=$(word 2,$(subst -, ,$(canonical_host)))
 full_host_os:=$(subst $(host_arch)-$(host_vendor)-,,$(canonical_host))
 host_os:=$(findstring linux,$(full_host_os))
 host_os+=$(findstring darwin,$(full_host_os))
 host_os+=$(findstring mingw32,$(full_host_os))
 host_os:=$(strip $(host_os))
 ifeq ($(host_os),)
 host_os=$(full_host_os)
 endif
 
 $(host_arch)_$(host_os)_prefix=$(BASEDIR)/$(host)
 $(host_arch)_$(host_os)_host=$(host)
 host_prefix=$($(host_arch)_$(host_os)_prefix)
 build_prefix=$(host_prefix)/native
 build_host=$(build)
 
 AT_$(V):=
 AT_:=@
 AT:=$(AT_$(V))
 
 all: install
 
 include hosts/$(host_os).mk
 include hosts/default.mk
 include builders/$(build_os).mk
 include builders/default.mk
 include packages/packages.mk
 
 build_id_string:=$(BUILD_ID_SALT)
 build_id_string+=$(shell $(build_CC) --version 2>/dev/null)
 build_id_string+=$(shell $(build_AR) --version 2>/dev/null)
 build_id_string+=$(shell $(build_CXX) --version 2>/dev/null)
 build_id_string+=$(shell $(build_RANLIB) --version 2>/dev/null)
 build_id_string+=$(shell $(build_STRIP) --version 2>/dev/null)
 
 $(host_arch)_$(host_os)_id_string:=$(HOST_ID_SALT)
 $(host_arch)_$(host_os)_id_string+=$(shell $(host_CC) --version 2>/dev/null)
 $(host_arch)_$(host_os)_id_string+=$(shell $(host_AR) --version 2>/dev/null)
 $(host_arch)_$(host_os)_id_string+=$(shell $(host_CXX) --version 2>/dev/null)
 $(host_arch)_$(host_os)_id_string+=$(shell $(host_RANLIB) --version 2>/dev/null)
 $(host_arch)_$(host_os)_id_string+=$(shell $(host_STRIP) --version 2>/dev/null)
 
 qt_packages_$(NO_QT) = $(qt_packages) $(qt_$(host_os)_packages) $(qt_$(host_arch)_$(host_os)_packages)
 wallet_packages_$(NO_WALLET) = $(wallet_packages)
 upnp_packages_$(NO_UPNP) = $(upnp_packages)
 
 rapidcheck_packages_$(RAPIDCHECK) = $(rapidcheck_packages)
 
 packages += $($(host_arch)_$(host_os)_packages) $($(host_os)_packages) $(qt_packages_) $(wallet_packages_) $(upnp_packages_)
 native_packages += $($(host_arch)_$(host_os)_native_packages) $($(host_os)_native_packages)
 
 ifneq ($(qt_packages_),)
 native_packages += $(qt_native_packages)
 endif
 
 ifeq ($(rapidcheck_packages_),)
 packages += $(rapidcheck_packages)
 endif
 
 all_packages = $(packages) $(native_packages)
 
 meta_depends = Makefile funcs.mk builders/default.mk hosts/default.mk hosts/$(host_os).mk builders/$(build_os).mk
 
 $(host_arch)_$(host_os)_native_toolchain?=$($(host_os)_native_toolchain)
 
 include funcs.mk
 
 toolchain_path=$($($(host_arch)_$(host_os)_native_toolchain)_prefixbin)
 final_build_id_long+=$(shell $(build_SHA256SUM) config.site.in)
 final_build_id+=$(shell echo -n "$(final_build_id_long)" | $(build_SHA256SUM) | cut -c-$(HASH_LENGTH))
 $(host_prefix)/.stamp_$(final_build_id): $(native_packages) $(packages)
 	$(AT)rm -rf $(@D)
 	$(AT)mkdir -p $(@D)
 	$(AT)echo copying packages: $^
 	$(AT)echo to: $(@D)
 	$(AT)cd $(@D); $(foreach package,$^, tar xf $($(package)_cached); )
 	$(AT)touch $@
 
 $(host_prefix)/share/config.site : config.site.in $(host_prefix)/.stamp_$(final_build_id)
 	$(AT)@mkdir -p $(@D)
 	$(AT)sed -e 's|@HOST@|$(host)|' \
             -e 's|@CC@|$(toolchain_path)$(host_CC)|' \
             -e 's|@CXX@|$(toolchain_path)$(host_CXX)|' \
             -e 's|@AR@|$(toolchain_path)$(host_AR)|' \
             -e 's|@RANLIB@|$(toolchain_path)$(host_RANLIB)|' \
             -e 's|@NM@|$(toolchain_path)$(host_NM)|' \
             -e 's|@STRIP@|$(toolchain_path)$(host_STRIP)|' \
             -e 's|@build_os@|$(build_os)|' \
             -e 's|@host_os@|$(host_os)|' \
             -e 's|@CFLAGS@|$(strip $(host_CFLAGS) $(host_$(release_type)_CFLAGS))|' \
             -e 's|@CXXFLAGS@|$(strip $(host_CXXFLAGS) $(host_$(release_type)_CXXFLAGS))|' \
             -e 's|@CPPFLAGS@|$(strip $(host_CPPFLAGS) $(host_$(release_type)_CPPFLAGS))|' \
             -e 's|@LDFLAGS@|$(strip $(host_LDFLAGS) $(host_$(release_type)_LDFLAGS))|' \
             -e 's|@no_qt@|$(NO_QT)|' \
             -e 's|@no_wallet@|$(NO_WALLET)|' \
             -e 's|@no_upnp@|$(NO_UPNP)|' \
             -e 's|@debug@|$(DEBUG)|' \
             $< > $@
 	$(AT)touch $@
 
 
 define check_or_remove_cached
   mkdir -p $(BASE_CACHE)/$(host)/$(package) && cd $(BASE_CACHE)/$(host)/$(package); \
   $(build_SHA256SUM) -c $($(package)_cached_checksum) >/dev/null 2>/dev/null || \
   ( rm -f $($(package)_cached_checksum); \
     if test -f "$($(package)_cached)"; then echo "Checksum mismatch for $(package). Forcing rebuild.."; rm -f $($(package)_cached_checksum) $($(package)_cached); fi )
 endef
 
 define check_or_remove_sources
   mkdir -p $($(package)_source_dir); cd $($(package)_source_dir); \
   test -f $($(package)_fetched) && ( $(build_SHA256SUM) -c $($(package)_fetched) >/dev/null 2>/dev/null || \
     ( echo "Checksum missing or mismatched for $(package) source. Forcing re-download."; \
       rm -f $($(package)_all_sources) $($(1)_fetched))) || true
 endef
 
 check-packages:
 	@$(foreach package,$(all_packages),$(call check_or_remove_cached,$(package));)
 check-sources:
 	@$(foreach package,$(all_packages),$(call check_or_remove_sources,$(package));)
 
 $(host_prefix)/share/config.site: check-packages
 
 check-packages: check-sources
 
 install: check-packages $(host_prefix)/share/config.site
 
 download-one: check-sources $(all_sources)
 
 download-osx:
-	@$(MAKE) -s HOST=x86_64-apple-darwin14 download-one
+	@$(MAKE) -s HOST=x86_64-apple-darwin16 download-one
 download-linux:
 	@$(MAKE) -s HOST=x86_64-unknown-linux-gnu download-one
 download-win:
 	@$(MAKE) -s HOST=x86_64-w64-mingw32 download-one
 download: download-osx download-linux download-win
 
 build-linux64: download-linux
 	@$(MAKE) -s HOST=x86_64-linux-gnu install
 build-linux32: download-linux
 	@$(MAKE) -s HOST=i686-pc-linux-gnu install
 build-linux-arm: download-linux
 	@$(MAKE) -s HOST=arm-linux-gnueabihf install
 build-linux-aarch64: download-linux
 	@$(MAKE) -s HOST=aarch64-linux-gnu install
 build-osx: download-osx
-	@$(MAKE) -s HOST=x86_64-apple-darwin14 install
+	@$(MAKE) -s HOST=x86_64-apple-darwin16 install
 build-win32: download-win
 	@$(MAKE) -s HOST=i686-w64-mingw32 install
 build-win64: download-win
 	@$(MAKE) -s HOST=x86_64-w64-mingw32 install
 
 build-all: build-linux64 build-linux32 build-linux-arm build-linux-aarch64 build-osx build-win32 build-win64
 
 .PHONY: install cached download-one download-osx download-linux download-win download check-packages check-sources
diff --git a/depends/hosts/darwin.mk b/depends/hosts/darwin.mk
index a1c943d60..1f88c209c 100644
--- a/depends/hosts/darwin.mk
+++ b/depends/hosts/darwin.mk
@@ -1,17 +1,17 @@
-OSX_MIN_VERSION=10.10
+OSX_MIN_VERSION=10.12
 OSX_SDK_VERSION=10.11
 OSX_SDK=$(SDK_PATH)/MacOSX$(OSX_SDK_VERSION).sdk
 LD64_VERSION=253.9
 darwin_CC=clang -target $(host) -mmacosx-version-min=$(OSX_MIN_VERSION) --sysroot $(OSX_SDK) -mlinker-version=$(LD64_VERSION)
 darwin_CXX=clang++ -target $(host) -mmacosx-version-min=$(OSX_MIN_VERSION) --sysroot $(OSX_SDK) -mlinker-version=$(LD64_VERSION) -stdlib=libc++
 
 darwin_CFLAGS=-pipe
 darwin_CXXFLAGS=$(darwin_CFLAGS)
 
 darwin_release_CFLAGS=-O2
 darwin_release_CXXFLAGS=$(darwin_release_CFLAGS)
 
 darwin_debug_CFLAGS=-O1
 darwin_debug_CXXFLAGS=$(darwin_debug_CFLAGS)
 
 darwin_native_toolchain=native_cctools
diff --git a/doc/release-notes.md b/doc/release-notes.md
index 6fc05e5eb..973a859db 100644
--- a/doc/release-notes.md
+++ b/doc/release-notes.md
@@ -1,13 +1,16 @@
 Bitcoin ABC version 0.21.3 is now available from:
 
   <https://download.bitcoinabc.org/0.21.3/>
 
 This release includes the following features and fixes:
  - Fixed a bug where the `listtransactions` RPC was unable to list transactions
    by a giving label.  This functionality has been restored.
+ - MacOS versions earlier than 10.12 are no longer supported.
+   Additionally, Bitcoin ABC does not yet change appearance when macOS
+   "dark mode" is activated.
 
 Low-level RPC changes
 ----------------------
  - `-usehd` was removed in version 0.16. From that version onwards, all new
  wallets created are hierarchical deterministic wallets. Version 0.18 makes
  specifying `-usehd` invalid config.
diff --git a/share/qt/Info.plist.in b/share/qt/Info.plist.in
index 9e141f1d9..f81b65e31 100644
--- a/share/qt/Info.plist.in
+++ b/share/qt/Info.plist.in
@@ -1,106 +1,106 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE plist SYSTEM "file://localhost/System/Library/DTDs/PropertyList.dtd">
 <plist version="0.9">
 <dict>
   <key>LSMinimumSystemVersion</key>
-  <string>10.10.0</string>
+  <string>10.12.0</string>
 
   <key>LSArchitecturePriority</key>
   <array>
     <string>x86_64</string>
   </array>
 
   <key>CFBundleIconFile</key>
   <string>bitcoin.icns</string>
 
   <key>CFBundlePackageType</key>
   <string>APPL</string>
 
   <key>CFBundleGetInfoString</key>
   <string>@CLIENT_VERSION_MAJOR@.@CLIENT_VERSION_MINOR@.@CLIENT_VERSION_REVISION@, Copyright © 2009-@COPYRIGHT_YEAR@ @COPYRIGHT_HOLDERS_FINAL@</string>
 
   <key>CFBundleShortVersionString</key>
   <string>@CLIENT_VERSION_MAJOR@.@CLIENT_VERSION_MINOR@.@CLIENT_VERSION_REVISION@</string>
 
   <key>CFBundleVersion</key>
   <string>@CLIENT_VERSION_MAJOR@.@CLIENT_VERSION_MINOR@.@CLIENT_VERSION_REVISION@</string>
 
   <key>CFBundleSignature</key>
   <string>????</string>
 
   <key>CFBundleExecutable</key>
   <string>BitcoinABC-Qt</string>
   
   <key>CFBundleName</key>
   <string>BitcoinABC-Qt</string>
 
   <key>LSHasLocalizedDisplayName</key>
   <true/>
 
   <key>CFBundleIdentifier</key>
   <string>org.bitcoinabc.BitcoinABC-Qt</string>
 
   <key>CFBundleURLTypes</key>
   <array>
     <dict>
       <key>CFBundleTypeRole</key>
       <string>Editor</string>
       <key>CFBundleURLName</key>
       <string>org.bitcoincash.BitcoinPayment</string>
       <key>CFBundleURLSchemes</key>
       <array>
         <string>bitcoincash</string>
       </array>
     </dict>
   </array>
 
   <key>UTExportedTypeDeclarations</key>
   <array>
     <dict>
       <key>UTTypeIdentifier</key>
       <string>org.bitcoincash.paymentrequest</string>
       <key>UTTypeDescription</key>
       <string>Bitcoin Cash payment request</string>
       <key>UTTypeConformsTo</key>
       <array>
         <string>public.data</string>
       </array>
       <key>UTTypeTagSpecification</key>
       <dict>
         <key>public.mime-type</key>
         <string>application/bitcoincash-paymentrequest</string>
         <key>public.filename-extension</key>
         <array>
           <string>bitcoincashpaymentrequest</string>
         </array>
       </dict>
     </dict>
   </array>
 
   <key>CFBundleDocumentTypes</key>
   <array>
     <dict>
       <key>CFBundleTypeRole</key>
       <string>Editor</string>
       <key>LSItemContentTypes</key>
       <array>
         <string>org.bitcoincash.paymentrequest</string>
       </array>
       <key>LSHandlerRank</key>
       <string>Owner</string>
     </dict>
   </array>
 
   <key>NSPrincipalClass</key>
     <string>NSApplication</string>
 
   <key>NSHighResolutionCapable</key>
     <string>True</string>
 
   <key>LSAppNapIsDisabled</key>
     <string>True</string>
   
   <key>LSApplicationCategoryType</key>
     <string>public.app-category.finance</string>
 </dict>
 </plist>