diff --git a/contrib/debian/control b/contrib/debian/control
index 5aa78c4a5..fda87877e 100644
--- a/contrib/debian/control
+++ b/contrib/debian/control
@@ -1,85 +1,86 @@
 Source: bitcoinabc
 Section: utils
 Priority: optional
 Maintainer: Bitcoin ABC Package Maintainers <package-maintainers@bitcoinabc.org>
 Uploaders: Jason B. Cox <jasonbcox@bitcoinabc.org>
 Build-Depends: cmake (>= 3.16),
  debhelper (>=12.1),
  devscripts,
  git,
  help2man,
  libdb5.3++-dev,
  libevent-dev,
  libjemalloc-dev,
  libminiupnpc-dev,
  libboost-filesystem-dev,
  libboost-system-dev,
  libboost-thread-dev,
  libboost-test-dev,
  libprotobuf-dev,
  libqrencode-dev,
  libssl-dev,
+ libsqlite3-dev,
  libzmq3-dev,
  lld,
  ninja-build,
  protobuf-compiler,
  python3,
  qttools5-dev,
  qttools5-dev-tools,
  xvfb
 Standards-Version: 3.9.2
 Homepage: https://bitcoinabc.org/
 Vcs-Git: ssh://vcs@reviews.bitcoinabc.org:2221/source/bitcoin-abc.git
 Vcs-Browser: https://reviews.bitcoinabc.org/source/bitcoin-abc/
 
 Package: bitcoind
 Architecture: any
 Depends: ${shlibs:Depends}, ${misc:Depends}
 Description: peer-to-peer network based digital currency - daemon
  Bitcoin is an experimental new digital currency that enables instant
  payments to anyone, anywhere in the world. Bitcoin uses peer-to-peer
  technology to operate with no central authority: managing transactions
  and issuing money are carried out collectively by the network. Bitcoin ABC
  is the name of the open source software which enables the use of this currency.
  .
  This package provides the daemon, bitcoind, and the CLI tool
  bitcoin-cli to interact with the daemon.
 
 Package: bitcoin-qt
 Architecture: any
 Depends: ${shlibs:Depends}, ${misc:Depends}
 Description: peer-to-peer network based digital currency - Qt GUI
  Bitcoin is an experimental new digital currency that enables instant
  payments to anyone, anywhere in the world. Bitcoin uses peer-to-peer
  technology to operate with no central authority: managing transactions
  and issuing money are carried out collectively by the network. Bitcoin ABC
  is the name of the open source software which enables the use of this currency.
  .
  This package provides Bitcoin-Qt, a GUI for Bitcoin based on Qt.
 
 Package: bitcoin-tx
 Architecture: any
 Depends: ${shlibs:Depends}, ${misc:Depends}
 Description: peer-to-peer digital currency - standalone transaction tool
  Bitcoin is an experimental new digital currency that enables instant
  payments to anyone, anywhere in the world. Bitcoin uses peer-to-peer
  technology to operate with no central authority: managing transactions
  and issuing money are carried out collectively by the network. Bitcoin ABC
  is the name of the open source software which enables the use of this currency.
  .
  This package provides bitcoin-tx, a command-line transaction creation
  tool which can be used without a bitcoin daemon.  Some means of
  exchanging minimal transaction data with peers is still required.
 
 Package: bitcoin-wallet
 Architecture: any
 Depends: ${shlibs:Depends}, ${misc:Depends}
 Description: peer-to-peer digital currency - wallet tool
  Bitcoin is an experimental new digital currency that enables instant
  payments to anyone, anywhere in the world. Bitcoin uses peer-to-peer
  technology to operate with no central authority: managing transactions
  and issuing money are carried out collectively by the network. Bitcoin ABC
  is the name of the open source software which enables the use of this currency.
  .
  This package provides bitcoin-wallet, an offline tool for creating and
  interacting with Bitcoin ABC wallet files.
diff --git a/contrib/gitian-descriptors/gitian-linux.yml b/contrib/gitian-descriptors/gitian-linux.yml
index e911215cb..fc3090ecb 100644
--- a/contrib/gitian-descriptors/gitian-linux.yml
+++ b/contrib/gitian-descriptors/gitian-linux.yml
@@ -1,174 +1,174 @@
 ---
 name: "bitcoin-abc-linux"
 enable_cache: true
 distro: "debian"
 suites:
 - "buster"
 architectures:
 - "amd64"
 packages:
 - "autoconf"
 - "automake"
 - "binutils-aarch64-linux-gnu"
 - "binutils-arm-linux-gnueabihf"
 - "binutils-gold"
 - "bsdmainutils"
 - "build-essential"
 - "ca-certificates"
 - "curl"
 - "faketime"
 - "g++-aarch64-linux-gnu"
 - "g++-arm-linux-gnueabihf"
 - "gcc-aarch64-linux-gnu"
 - "gcc-arm-linux-gnueabihf"
 - "git"
 - "gperf"
 - "libtool"
 - "ninja-build"
 - "pkg-config"
 - "python3"
 repositories:
 - "distribution": "buster-backports"
   "source": "deb http://deb.debian.org/debian/ buster-backports main"
   packages:
   - "cmake"
 remotes:
 - "url": "https://github.com/Bitcoin-ABC/bitcoin-abc.git"
   "dir": "bitcoin"
 files: []
 script: |
 
   WRAP_DIR=$HOME/wrapped
   HOSTS=(
    x86_64-linux-gnu
    arm-linux-gnueabihf
    aarch64-linux-gnu
   )
 
   # CMake toolchain file name differ from host name
   declare -A CMAKE_TOOLCHAIN_FILE
   CMAKE_TOOLCHAIN_FILE[x86_64-linux-gnu]=Linux64.cmake
   CMAKE_TOOLCHAIN_FILE[arm-linux-gnueabihf]=LinuxARM.cmake
   CMAKE_TOOLCHAIN_FILE[aarch64-linux-gnu]=LinuxAArch64.cmake
 
   # Allow extra cmake option to be specified for each host
   declare -A CMAKE_EXTRA_OPTIONS
   # ARM assembly is supported but experimental, disable it for the release
   CMAKE_EXTRA_OPTIONS[arm-linux-gnueabihf]="-DSECP256K1_USE_ASM=OFF"
 
   FAKETIME_HOST_PROGS=""
   FAKETIME_PROGS="date ar ranlib nm"
   HOST_CFLAGS="-O2 -g"
   HOST_CXXFLAGS="-O2 -g"
   HOST_LDFLAGS=-static-libstdc++
 
   export QT_RCC_TEST=1
   export QT_RCC_SOURCE_DATE_OVERRIDE=1
   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
 
   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}
+    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
   # 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
   # Any toolchain file will work for building the source package, just pick the
   # first one
   cmake -GNinja .. \
     -DCMAKE_TOOLCHAIN_FILE=${SOURCEDIR}/cmake/platforms/${CMAKE_TOOLCHAIN_FILE[${HOSTS[0]}]}
 
   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 --mtime="${REFERENCE_DATETIME}" --no-recursion --mode='u+rw,go+r-w,a+X' --owner=0 --group=0 -c -T - | gzip -9n > ../$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[${i}]} \
       -DCLIENT_VERSION_IS_RELEASE=ON \
       -DENABLE_CLANG_TIDY=OFF \
       -DENABLE_REDUCE_EXPORTS=ON \
       -DENABLE_STATIC_LIBSTDCXX=ON \
       -DENABLE_GLIBC_BACK_COMPAT=ON \
       -DCMAKE_INSTALL_PREFIX=${INSTALLPATH} \
       -DCCACHE=OFF \
       -DUSE_LINKER= \
       ${CMAKE_EXTRA_OPTIONS[${i}]}
 
     ninja
     ninja security-check
     ninja symbol-check
 
     ninja install-debug
 
     cd installed
     find ${DISTNAME} -not -name "*.dbg" | sort | tar --mtime="${REFERENCE_DATETIME}" --no-recursion --mode='u+rw,go+r-w,a+X' --owner=0 --group=0 -c -T - | gzip -9n > ${OUTDIR}/${DISTNAME}-${i}.tar.gz
     find ${DISTNAME} -name "*.dbg" | sort | tar --mtime="${REFERENCE_DATETIME}" --no-recursion --mode='u+rw,go+r-w,a+X' --owner=0 --group=0 -c -T - | gzip -9n > ${OUTDIR}/${DISTNAME}-${i}-debug.tar.gz
     cd ../../
     rm -rf distsrc-${i}
   done
   mkdir -p $OUTDIR/src
   mv $SOURCEDIST $OUTDIR/src
diff --git a/contrib/gitian-descriptors/gitian-win.yml b/contrib/gitian-descriptors/gitian-win.yml
index 871f9e3d5..5a5f17795 100644
--- a/contrib/gitian-descriptors/gitian-win.yml
+++ b/contrib/gitian-descriptors/gitian-win.yml
@@ -1,197 +1,197 @@
 ---
 name: "bitcoin-abc-win"
 enable_cache: true
 distro: "debian"
 suites:
 - "buster"
 architectures:
 - "amd64"
 packages:
 - "autoconf"
 - "automake"
 - "bsdmainutils"
 - "ca-certificates"
 - "curl"
 - "faketime"
 - "g++"
 - "g++-mingw-w64"
 - "git"
 - "libtool"
 - "ninja-build"
 - "mingw-w64"
 - "nsis"
 - "pkg-config"
 - "python3"
 - "zip"
 repositories:
 - "distribution": "buster-backports"
   "source": "deb http://deb.debian.org/debian/ buster-backports main"
   packages:
   - "cmake"
 remotes:
 - "url": "https://github.com/Bitcoin-ABC/bitcoin-abc.git"
   "dir": "bitcoin"
 files: []
 script: |
   WRAP_DIR=$HOME/wrapped
   HOSTS=(
     x86_64-w64-mingw32
   )
 
   # CMake toolchain file name differ from host name
   declare -A CMAKE_TOOLCHAIN_FILE
   CMAKE_TOOLCHAIN_FILE[x86_64-w64-mingw32]=Win64.cmake
 
   FAKETIME_HOST_PROGS="ar ranlib nm windres strip objcopy"
   FAKETIME_PROGS="date makensis zip"
   HOST_CFLAGS="-O2 -g"
   HOST_CXXFLAGS="-O2 -g"
 
   export QT_RCC_TEST=1
   export QT_RCC_SOURCE_DATE_OVERRIDE=1
   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
 
   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}
+        echo "\$REAL \"\$@\"" >> $WRAP_DIR/${i}-${prog}
         chmod +x ${WRAP_DIR}/${i}-${prog}
     done
   done
   }
 
   function create_per-host_linker_wrapper {
   # This is only needed for trusty, as the mingw linker leaks a few bytes of
   # heap, causing non-determinism. See discussion in https://github.com/bitcoin/bitcoin/pull/6900
   for i in ${HOSTS[@]}; do
     mkdir -p ${WRAP_DIR}/${i}
     for prog in collect2; do
         echo '#!/usr/bin/env bash' > ${WRAP_DIR}/${i}/${prog}
         REAL=$(${i}-gcc -print-prog-name=${prog})
         echo "export MALLOC_PERTURB_=255" >> ${WRAP_DIR}/${i}/${prog}
         echo "${REAL} \$@" >> $WRAP_DIR/${i}/${prog}
         chmod +x ${WRAP_DIR}/${i}/${prog}
     done
     for prog in gcc g++; do
         echo '#!/usr/bin/env bash' > ${WRAP_DIR}/${i}-${prog}
         echo "REAL=\`which -a ${i}-${prog}-posix | 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}-${prog}
         echo "export COMPILER_PATH=${WRAP_DIR}/${i}" >> ${WRAP_DIR}/${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=${PATH}
   create_global_faketime_wrappers "2000-01-01 12:00:00"
   create_per-host_faketime_wrappers "2000-01-01 12:00:00"
   create_per-host_linker_wrapper "2000-01-01 12:00:00"
   export PATH=${WRAP_DIR}:${PATH}
 
   cd bitcoin
   SOURCEDIR=`pwd`
   BASEPREFIX=`pwd`/depends
   # 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 "${REFERENCE_DATETIME}"
   create_per-host_linker_wrapper "${REFERENCE_DATETIME}"
   export PATH=${WRAP_DIR}:${PATH}
 
   mkdir -p source_package
   pushd source_package
   # Any toolchain file will work for building the source package, just pick the
   # first one
   cmake -GNinja .. \
     -DCMAKE_TOOLCHAIN_FILE=${SOURCEDIR}/cmake/platforms/${CMAKE_TOOLCHAIN_FILE[${HOSTS[0]}]}
 
   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 ../$SOURCEDIST
   find bitcoin-abc-* | sort | tar --mtime="${REFERENCE_DATETIME}" --no-recursion --mode='u+rw,go+r-w,a+X' --owner=0 --group=0 -c -T - | gzip -9n > ../$SOURCEDIST
   mkdir -p $OUTDIR/src
   cp ../$SOURCEDIST $OUTDIR/src
   popd
 
   # Allow extra cmake option to be specified for each host
   declare -A CMAKE_EXTRA_OPTIONS
   CMAKE_EXTRA_OPTIONS[x86_64-w64-mingw32]="-DCPACK_PACKAGE_FILE_NAME=${DISTNAME}-win64-setup-unsigned"
 
   ORIGPATH="$PATH"
   # Extract the release tarball into a dir for each host and build
   for i in ${HOSTS[@]}; do
     export PATH=${BASEPREFIX}/${i}/native/bin:${WRAP_DIR}:${ORIGPATH}
     mkdir -p distsrc-${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[${i}]} \
       -DCLIENT_VERSION_IS_RELEASE=ON \
       -DENABLE_CLANG_TIDY=OFF \
       -DENABLE_REDUCE_EXPORTS=ON \
       -DBUILD_BITCOIN_SEEDER=OFF \
       -DCPACK_STRIP_FILES=ON \
       -DCMAKE_INSTALL_PREFIX=${INSTALLPATH} \
       -DCCACHE=OFF \
       ${CMAKE_EXTRA_OPTIONS[${i}]}
 
     ninja
     ninja security-check
 
     ninja install-debug
 
     ninja package
 
     cp -f bitcoin-abc-*-setup-unsigned.exe ${OUTDIR}/
     cd installed
     mkdir -p ${DISTNAME}/lib
     mv ${DISTNAME}/bin/*.dll* ${DISTNAME}/lib/
     find ${DISTNAME} -not -name "*.dbg"  -type f | sort | zip -X@ ${OUTDIR}/${DISTNAME}-${i}.zip
     find ${DISTNAME} -name "*.dbg"  -type f | sort | zip -X@ ${OUTDIR}/${DISTNAME}-${i}-debug.zip
     cd ../../
     rm -rf distsrc-${i}
   done
 
   cd $OUTDIR
   mv ${OUTDIR}/${DISTNAME}-x86_64-*-debug.zip ${OUTDIR}/${DISTNAME}-win64-debug.zip
   mv ${OUTDIR}/${DISTNAME}-x86_64-*.zip ${OUTDIR}/${DISTNAME}-win64.zip
diff --git a/contrib/utils/install-dependencies.sh b/contrib/utils/install-dependencies.sh
index afecd8578..227900ac5 100755
--- a/contrib/utils/install-dependencies.sh
+++ b/contrib/utils/install-dependencies.sh
@@ -1,139 +1,140 @@
 #!/usr/bin/env bash
 
 export LC_ALL=C.UTF-8
 
 set -euxo pipefail
 
 dpkg --add-architecture i386
 
 PACKAGES=(
   arcanist
   automake
   autotools-dev
   binutils
   bsdmainutils
   build-essential
   ccache
   cppcheck
   curl
   default-jdk
   devscripts
   doxygen
   dput
   flake8
   g++-aarch64-linux-gnu
   g++-arm-linux-gnueabihf
   gettext-base
   git
   golang
   g++-mingw-w64
   gnupg
   graphviz
   gperf
   help2man
   imagemagick
   jq
   lcov
   less
   lib32stdc++-8-dev
   libboost-all-dev
   libbz2-dev
   libc6-dev:i386
   libcap-dev
   libdb++-dev
   libdb-dev
   libevent-dev
   libjemalloc-dev
   libminiupnpc-dev
   libprotobuf-dev
   libqrencode-dev
   libqt5core5a
   libqt5dbus5
   libqt5gui5
   librsvg2-bin
+  libsqlite3-dev
   libssl-dev
   libtiff-tools
   libtinfo5
   libtool
   libzmq3-dev
   lld
   make
   ninja-build
   nsis
   php-codesniffer
   pkg-config
   protobuf-compiler
   python3
   python3-autopep8
   python3-pip
   python3-setuptools
   python3-yaml
   python3-zmq
   qemu-user-static
   qttools5-dev
   qttools5-dev-tools
   software-properties-common
   tar
   wget
   xvfb
   yamllint
   wine
 )
 
 function join_by() {
   local IFS="$1"
   shift
   echo "$*"
 }
 
 apt-get update
 DEBIAN_FRONTEND=noninteractive apt-get install -y $(join_by ' ' "${PACKAGES[@]}")
 
 BACKPORTS=(
   cmake
   shellcheck
 )
 
 echo "deb http://deb.debian.org/debian buster-backports main" | tee -a /etc/apt/sources.list
 apt-get update
 DEBIAN_FRONTEND=noninteractive apt-get -t buster-backports install -y $(join_by ' ' "${BACKPORTS[@]}")
 
 
 # Install llvm-8 and clang-10
 apt-key add "$(dirname "$0")"/llvm.pub
 add-apt-repository "deb https://apt.llvm.org/buster/   llvm-toolchain-buster-8  main"
 add-apt-repository "deb https://apt.llvm.org/buster/   llvm-toolchain-buster-10  main"
 apt-get update
 
 LLVM_PACKAGES=(
   clang-10
   clang-format-10
   clang-tidy-10
   clang-tools-10
 )
 DEBIAN_FRONTEND=noninteractive apt-get install -y $(join_by ' ' "${LLVM_PACKAGES[@]}")
 
 # Use the mingw posix variant
 update-alternatives --set x86_64-w64-mingw32-g++ $(command -v x86_64-w64-mingw32-g++-posix)
 update-alternatives --set x86_64-w64-mingw32-gcc $(command -v x86_64-w64-mingw32-gcc-posix)
 
 # Python library for merging nested structures
 pip3 install deepmerge
 # For running Python test suites
 pip3 install pytest
 
 # Up-to-date mypy and isort packages are required python linters
 pip3 install isort==5.6.4 mypy==0.780
 echo "export PATH=\"$(python3 -m site --user-base)/bin:\$PATH\"" >> ~/.bashrc
 # shellcheck source=/dev/null
 source ~/.bashrc
 
 # Install pandoc. The version from buster is outdated, so get a more recent one
 # from github.
 wget https://github.com/jgm/pandoc/releases/download/2.10.1/pandoc-2.10.1-1-amd64.deb
 echo "4515d6fe2bf8b82765d8dfa1e1b63ccb0ff3332d60389f948672eaa37932e936 pandoc-2.10.1-1-amd64.deb" | sha256sum -c
 DEBIAN_FRONTEND=noninteractive dpkg -i pandoc-2.10.1-1-amd64.deb
 
 # Install npm v7.x and nodejs v15.x
 curl -sL https://deb.nodesource.com/setup_15.x | bash -
 apt-get install -y nodejs
diff --git a/depends/Makefile b/depends/Makefile
index e1d0cc0cd..36e927d6a 100644
--- a/depends/Makefile
+++ b/depends/Makefile
@@ -1,234 +1,237 @@
 .NOTPARALLEL :
 
 # Pattern rule to print variables, e.g. make print-build_arch
 print-%:
 	@echo $* = $($*)
 
 # When invoking a sub-make, keep only the command line variable definitions
 # matching the pattern in the filter function.
 #
 # e.g. invoking:
 #   $ make A=1 C=1 print-MAKEOVERRIDES print-MAKEFLAGS
 #
 # with the following in the Makefile:
 #   MAKEOVERRIDES := $(filter A=% B=%,$(MAKEOVERRIDES))
 #
 # will print:
 #   MAKEOVERRIDES = A=1
 #   MAKEFLAGS = -- A=1
 #
 # this is because as the GNU make manual says:
 #   The command line variable definitions really appear in the variable
 #   MAKEOVERRIDES, and MAKEFLAGS contains a reference to this variable.
 #
 # and since the GNU make manual also says:
 #   variables defined on the command line are passed to the sub-make through
 #   MAKEFLAGS
 #
 # this means that sub-makes will be invoked as if:
 #   $(MAKE) A=1 blah blah
 MAKEOVERRIDES := $(filter V=%,$(MAKEOVERRIDES))
 SOURCES_PATH ?= $(BASEDIR)/sources
 WORK_PATH = $(BASEDIR)/work
 BASE_CACHE ?= $(BASEDIR)/built
 SDK_PATH ?= $(BASEDIR)/SDKs
 NO_QT ?=
 NO_PROTOBUF ?=
 NO_QR ?=
 NO_WALLET ?=
 NO_ZMQ ?=
 NO_UPNP ?=
 NO_JEMALLOC ?=
 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=$(WORK_PATH)/build
 base_staging_dir=$(WORK_PATH)/staging
 base_download_dir=$(WORK_PATH)/download
 canonical_host:=$(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)
 
 ifneq ($(strip $(FORCE_USE_SYSTEM_CLANG)),)
 build_id_string+=system_clang
 $(host_arch)_$(host_os)_id_string+=system_clang
 endif
 
 qrencode_packages_$(NO_QR) = $(qrencode_packages)
 
 qt_packages_$(NO_QT) = $(qt_packages) $(qt_$(host_os)_packages) $(qt_$(host_arch)_$(host_os)_packages) $(qrencode_packages_)
 
-wallet_packages_$(NO_WALLET) = $(wallet_packages)
+bdb_packages_$(NO_BDB) = $(bdb_packages)
+sqlite_packages_$(NO_SQLITE) = $(sqlite_packages)
+wallet_packages_$(NO_WALLET) = $(bdb_packages_) $(sqlite_packages_)
+
 upnp_packages_$(NO_UPNP) = $(upnp_packages)
 zmq_packages_$(NO_ZMQ) = $(zmq_packages)
 
 protobuf_packages_$(NO_PROTOBUF) = $(protobuf_packages)
 
 jemalloc_packages_$(NO_JEMALLOC) = $(jemalloc_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 ($(protobuf_packages_),)
 native_packages += $(protobuf_native_packages)
 packages += $(protobuf_packages)
 endif
 
 ifneq ($(zmq_packages_),)
 packages += $(zmq_packages)
 endif
 
 ifneq ($(jemalloc_packages_),)
 packages += $(jemalloc_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_binutils?=$($(host_os)_native_binutils)
 $(host_arch)_$(host_os)_native_toolchain?=$($(host_os)_native_toolchain)
 
 include funcs.mk
 
 final_build_id_long+=$(shell $(build_SHA256SUM) config.sub)
 final_build_id+=$(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 $@
 
 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));)
 
 check-packages: check-sources
 
 clean-all: clean
 	@rm -rf $(SOURCES_PATH) x86_64* i686* arm* aarch64*
 
 clean:
 	@rm -rf $(WORK_PATH) $(BASE_CACHE) $(BUILD)
 
 install: check-packages $(host_prefix)/.stamp_$(final_build_id)
 
 download-one: check-sources $(all_sources)
 
 download-osx:
 	@$(MAKE) -s HOST=x86_64-apple-darwin16 download-one
 download-linux:
 	@$(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
 	@$(MAKE) -s HOST=x86_64-apple-darwin16 install
 build-win64: download-win
 	@$(MAKE) -s HOST=x86_64-w64-mingw32 install
 
 build-all: build-linux64 build-linux32 build-linux-arm build-linux-aarch64 build-osx build-win64
 
 $(foreach package,$(all_packages),$(eval $(call ext_add_stages,$(package))))
 
 .PHONY: install cached clean clean-all download-one download-osx download-linux download-win download check-packages check-sources
diff --git a/depends/README.md b/depends/README.md
index 14765ca1d..d34c23dfe 100644
--- a/depends/README.md
+++ b/depends/README.md
@@ -1,138 +1,142 @@
 ### Usage
 
 To build dependencies for the current arch+OS:
 
     make
 
 To build for another arch/OS:
 
     make build-<platform>
 
 Where `<platform>` is one of the following:
  - linux64
  - linux32
  - linux-arm
  - linux-aarch64
  - osx
  - win64
 
 For example, building the dependencies for macOS:
 
     make build-osx
 
 Note that it will use all the CPU cores available on the machine by default.
 This behavior can be changed by setting the `JOBS` environment variable (see
 below).
 
 To use the dependencies for building Bitcoin ABC, you need to set the platform
 file to be used by `cmake`.
 The platform files are located under `cmake/platforms/`.
 For example, cross-building for macOS (run from the project root):
 
     mkdir build_osx
     cd build_osx
     cmake -GNinja .. -DCMAKE_TOOLCHAIN_FILE=../cmake/platforms/OSX.cmake
     ninja
 
 No other options are needed, the paths are automatically configured.
 
 ### Install the required dependencies: Ubuntu & Debian
 
 #### Common to all arch/OS
 
     sudo apt-get install build-essential autoconf automake cmake curl git libtool ninja-build patch pkg-config python3
 
 #### For macOS cross compilation
 
     sudo apt-get install imagemagick libbz2-dev libcap-dev librsvg2-bin libtiff-tools libtinfo5 python3-setuptools
 
 #### For Win64 cross compilation
 
 - see [build-windows.md](../doc/build-windows.md#cross-compilation-for-ubuntu-and-windows-subsystem-for-linux)
 
 #### For linux cross compilation
 
 Common linux dependencies:
 
     sudo apt-get install gperf
 
 For linux 32 bits cross compilation:
 
 First add the i386 architecture to `dpkg`:
 
     sudo dpkg --add-architecture i386
     sudo apt-get update
 
 Then install the dependencies:
 
     sudo apt-get install lib32stdc++-8-dev libc6-dev:i386
 
 For linux ARM cross compilation:
 
     sudo apt-get install g++-arm-linux-gnueabihf
 
 For linux AARCH64 cross compilation:
 
     sudo apt-get install g++-aarch64-linux-gnu
 
 
 ### Dependency Options
 
 The following can be set when running make: `make FOO=bar`
 
 <dl>
 <dt>SOURCES_PATH</dt>
 <dd>downloaded sources will be placed here</dd>
 <dt>BASE_CACHE</dt>
 <dd>built packages will be placed here</dd>
 <dt>SDK_PATH</dt>
 <dd>Path where sdk's can be found (used by macOS)</dd>
 <dt>FALLBACK_DOWNLOAD_PATH</dt>
 <dd>If a source file can't be fetched, try here before giving up</dd>
 <dt>NO_QT</dt>
 <dd>Don't download/build/cache qt and its dependencies</dd>
 <dt>NO_QR</dt>
 <dd>Don't download/build/cache packages needed for enabling qrencode</dd>
 <dt>NO_ZMQ</dt>
 <dd>Don't download/build/cache packages needed for enabling zeromq</dd>
 <dt>NO_WALLET</dt>
 <dd>Don't download/build/cache libs needed to enable the wallet</dd>
+<dt>NO_BDB</dt>
+<dd>Don't download/build/cache BerkeleyDB</dd>
+<dt>NO_SQLITE</dt>
+<dd>Don't download/build/cache SQLite</dd>
 <dt>NO_UPNP</dt>
 <dd>Don't download/build/cache packages needed for enabling upnp</dd>
 <dt>NO_JEMALLOC</dt>
 <dd>Don't download/build/cache jemalloc</dd>
 <dt>DEBUG</dt>
 <dd>disable some optimizations and enable more runtime checking</dd>
 <dt>NO_PROTOBUF</dt>
 <dd>Don't download/build/cache protobuf (used for BIP70 support)</dd>
 <dt>HOST_ID_SALT</dt>
 <dd>Optional salt to use when generating host package ids</dd>
 <dt>BUILD_ID_SALT</dt>
 <dd>Optional salt to use when generating build package ids</dd>
 <dt>JOBS</dt>
 <dd>Number of jobs to use for each package build</dd>
 <dt>FORCE_USE_SYSTEM_CLANG</dt>
 <dd>(EXPERTS ONLY) When cross-compiling for macOS, use Clang found in the
  system's <code>$PATH</code> rather than the default prebuilt release of Clang
  from llvm.org. Clang 8 or later is required.</dd>
 </dl>
 
 If some packages are not built, for example by building the depends with
 `make NO_WALLET=1`, the appropriate options should be set when building Bitcoin
 ABC using these dependencies.
 In this example, `-DBUILD_BITCOIN_WALLET=OFF` should be passed to the `cmake`
 command line to ensure that the build will not fail due to missing dependencies.
 
 Additional targets:
 
     download: run 'make download' to fetch all sources without building them
     download-osx: run 'make download-osx' to fetch all sources needed for macOS builds
     download-win: run 'make download-win' to fetch all sources needed for win builds
     download-linux: run 'make download-linux' to fetch all sources needed for linux builds
     build-all: build the dependencies for all the arch/OS
 
 ### Other documentation
 
 - [description.md](description.md): General description of the depends system
 - [packages.md](packages.md): Steps for adding packages
 
diff --git a/depends/packages/packages.mk b/depends/packages/packages.mk
index eabe45962..d0266db80 100644
--- a/depends/packages/packages.mk
+++ b/depends/packages/packages.mk
@@ -1,27 +1,28 @@
 packages:=boost openssl libevent
 
 protobuf_native_packages = native_protobuf
 protobuf_packages = protobuf
 
 qt_packages = zlib
 
 qrencode_packages = qrencode
 
 qt_linux_packages:=qt expat libxcb xcb_proto libXau xproto freetype fontconfig
 
 qt_darwin_packages=qt
 qt_mingw32_packages=qt
 
-wallet_packages=bdb
+bdb_packages=bdb
+sqlite_packages=sqlite
 
 zmq_packages=zeromq
 
 upnp_packages=miniupnpc
 
 darwin_native_packages = native_biplist native_ds_store native_mac_alias
 
 ifneq ($(build_os),darwin)
 darwin_native_packages += native_cctools native_cdrkit native_libdmg-hfsplus
 endif
 
 jemalloc_packages = jemalloc
diff --git a/depends/packages/sqlite.mk b/depends/packages/sqlite.mk
new file mode 100644
index 000000000..af8a094dc
--- /dev/null
+++ b/depends/packages/sqlite.mk
@@ -0,0 +1,26 @@
+package=sqlite
+$(package)_version=3320100
+$(package)_download_path=https://sqlite.org/2020/
+$(package)_file_name=sqlite-autoconf-$($(package)_version).tar.gz
+$(package)_sha256_hash=486748abfb16abd8af664e3a5f03b228e5f124682b0c942e157644bf6fff7d10
+
+define $(package)_set_vars
+$(package)_config_opts=--disable-shared --disable-readline --disable-dynamic-extensions --enable-option-checking
+$(package)_config_opts_linux=--with-pic
+endef
+
+define $(package)_config_cmds
+  $($(package)_autoconf)
+endef
+
+define $(package)_build_cmds
+  $(MAKE) -j$(JOBS) libsqlite3.la
+endef
+
+define $(package)_stage_cmds
+  $(MAKE) DESTDIR=$($(package)_staging_dir) install-libLTLIBRARIES install-includeHEADERS install-pkgconfigDATA
+endef
+
+define $(package)_postprocess_cmds
+  rm lib/*.la
+endef
diff --git a/doc/build-osx.md b/doc/build-osx.md
index 78282c927..f27ecf806 100644
--- a/doc/build-osx.md
+++ b/doc/build-osx.md
@@ -1,99 +1,99 @@
 macOS Build Instructions and Notes
 ====================================
 The commands in this guide should be executed in a Terminal application.
 The built-in one is located in `/Applications/Utilities/Terminal.app`.
 
 Preparation
 -----------
 
 1.  Install Xcode from the app store if you don't have it already (it's a dependency for qt5)
 
 2.  Install the macOS command line tools:
 
 `xcode-select --install`
 
 When the popup appears, click `Install`.
 
 3.  Install [Homebrew](https://brew.sh).
 
 Dependencies
 ----------------------
 
 Install dependencies:
 
-    brew install berkeley-db boost cmake jemalloc libevent librsvg miniupnpc ninja openssl protobuf python qrencode qt@5 zeromq
+    brew install berkeley-db boost cmake jemalloc libevent librsvg miniupnpc ninja openssl protobuf python qrencode qt@5 sqlite zeromq
 
 See [dependencies.md](dependencies.md) for a complete overview.
 
 If you want to build the disk image with `ninja osx-dmg` (.dmg / optional), you need RSVG:
 
     brew install librsvg
 
 Build Bitcoin ABC
 -----------------
 
 Before you start building, please make sure that your compiler supports C++17.
 
 1. Clone the Bitcoin ABC source code and cd into `bitcoin-abc`
 
         git clone https://github.com/Bitcoin-ABC/bitcoin-abc.git
         cd bitcoin-abc
 
 2.  Build Bitcoin ABC:
 
     Configure and build the headless Bitcoin ABC binaries as well as the GUI.
 
     You can disable the GUI build by passing `-DBUILD_BITCOIN_QT=OFF` to cmake.
 
     It is recommended to create a build directory to build out-of-tree.
 
         mkdir build
         cd build
         cmake -GNinja ..
         ninja
 
 3.  It is recommended to build and run the unit tests:
 
         ninja check
 
 4.  You can also create a .dmg that contains the .app bundle (optional):
 
         ninja osx-dmg
 
 Disable-wallet mode
 --------------------
 When the intention is to run only a P2P node without a wallet, Bitcoin ABC may be compiled in
 disable-wallet mode with:
 
     cmake -GNinja .. -DBUILD_BITCOIN_WALLET=OFF
 
 Mining is also possible in disable-wallet mode using the `getblocktemplate` RPC call.
 
 Running
 -------
 
 Bitcoin ABC is now available at `./src/bitcoind`
 
 Before running, it's recommended that you create an RPC configuration file:
 
     echo -e "rpcuser=bitcoinrpc\nrpcpassword=$(xxd -l 16 -p /dev/urandom)" > "/Users/${USER}/Library/Application Support/Bitcoin/bitcoin.conf"
 
     chmod 600 "/Users/${USER}/Library/Application Support/Bitcoin/bitcoin.conf"
 
 The first time you run bitcoind, it will start downloading the blockchain. This process could take many hours, or even days on slower than average systems.
 
 You can monitor the download process by looking at the debug.log file:
 
     tail -f $HOME/Library/Application\ Support/Bitcoin/debug.log
 
 Other commands:
 -------
 
     ./src/bitcoind -daemon # Starts the bitcoin daemon.
     ./src/bitcoin-cli --help # Outputs a list of command-line options.
     ./src/bitcoin-cli help # Outputs a list of RPC commands when the daemon is running.
 
 Notes
 -----
 
 * Building with downloaded Qt binaries is not officially supported. See the notes in [#7714](https://github.com/bitcoin/bitcoin/issues/7714)
diff --git a/doc/build-unix.md b/doc/build-unix.md
index 79587e4d8..abcc61c4f 100644
--- a/doc/build-unix.md
+++ b/doc/build-unix.md
@@ -1,326 +1,331 @@
 UNIX BUILD NOTES
 ====================
 Some notes on how to build Bitcoin ABC in Unix.
 
 To Build
 ---------------------
 
 Before you start building, please make sure that your compiler supports C++17.
 
 It is recommended to create a build directory to build out-of-tree.
 
 ```bash
 mkdir build
 cd build
 cmake -GNinja ..
 ninja
 ninja install # optional
 ```
 
 This will build bitcoin-qt as well.
 
 Dependencies
 ---------------------
 
 *Note: Bitcoin ABC provides a [Docker image with all the dependencies preinstalled](#build-using-a-docker-container).*
 
 These dependencies are required:
 
  Library     | Purpose          | Description
  ------------|------------------|----------------------
  libssl      | Crypto           | Random Number Generation, Elliptic Curve Cryptography
  libboost    | Utility          | Library for threading, data structures, etc
  libevent    | Networking       | OS independent asynchronous networking
 
 Optional dependencies:
 
  Library     | Purpose          | Description
  ------------|------------------|----------------------
  miniupnpc   | UPnP Support     | Firewall-jumping support
  libdb       | Berkeley DB      | Wallet storage (only needed when wallet enabled)
+ libsqlite3  | SQLite 3         | Wallet storage (only needed when wallet enabled)
  jemalloc    | Memory allocator | Library to enhance the memory allocation and improve performances
  qt          | GUI              | GUI toolkit (only needed when GUI enabled)
  protobuf    | Payments in GUI  | Data interchange format used for payment protocol (only needed when BIP70 enabled)
  libqrencode | QR codes in GUI  | Optional for generating QR codes (only needed when GUI enabled)
  univalue    | Utility          | JSON parsing and encoding (bundled version will be used unless --with-system-univalue passed to configure)
  libzmq3     | ZMQ notification | Optional, allows generating ZMQ notifications (requires ZMQ version >= 4.1.5)
 
 For the versions used, see [dependencies.md](dependencies.md)
 
 Memory Requirements
 --------------------
 
 C++ compilers are memory-hungry. It is recommended to have at least 1.5 GB of
 memory available when compiling Bitcoin ABC. On systems with less, gcc can be
 tuned to conserve memory with additional CXXFLAGS:
 
     cmake -GNinja .. -DCMAKE_CXX_FLAGS="--param ggc-min-expand=1 --param ggc-min-heapsize=32768"
 
 Dependency Build Instructions: Ubuntu & Debian
 ----------------------------------------------
 Build requirements:
 
     sudo apt-get install bsdmainutils build-essential libssl-dev libevent-dev lld ninja-build python3
 
 **Installing cmake:**
 
 On Debian Buster (10), `cmake` should be installed from the backports repository:
 
     echo "deb http://deb.debian.org/debian buster-backports main" | sudo tee -a /etc/apt/sources.list
     sudo apt-get update
     sudo apt-get -t buster-backports install cmake
 
 On Ubuntu 20.04 and later:
 
     sudo apt-get install cmake
 
 On previous Ubuntu versions, the `cmake` package is too old and needs to be installed from the Kitware APT repository:
 
     sudo apt-get install apt-transport-https ca-certificates gnupg software-properties-common wget
     wget -O - https://apt.kitware.com/keys/kitware-archive-latest.asc 2>/dev/null | sudo apt-key add -
 
 Add the repository corresponding to your version (see [instructions from Kitware](https://apt.kitware.com)). For Ubuntu Bionic (18.04):
 
     sudo apt-add-repository 'deb https://apt.kitware.com/ubuntu/ bionic main'
 
 Then update the package list and install `cmake`:
 
     sudo apt update
     sudo apt install cmake
 
 Now, you can either build from self-compiled [depends](/depends/README.md) or
 install the required dependencies with the following instructions.
 
 Options when installing required Boost library files:
 
 1. On at least Ubuntu 16.04+ and Debian 9+ there are generic names for the
 individual boost development packages, so the following can be used to only
 install necessary parts of boost:
 
         sudo apt-get install libboost-system-dev libboost-filesystem-dev libboost-test-dev libboost-thread-dev
 
 2. If that doesn't work, you can install all boost development packages with:
 
         sudo apt-get install libboost-all-dev
 
-BerkeleyDB 5.3 or later is required for the wallet. This can be installed with:
+BerkeleyDB 5.3 or later and SQLite 3.7 or later are required for the wallet. These can be installed with:
 
-        sudo apt-get install libdb-dev libdb++-dev
+        sudo apt-get install libdb-dev libdb++-dev libsqlite3-dev
 
 See the section "Disable-wallet mode" to build Bitcoin ABC without wallet.
 
 Minipupnc dependencies (can be disabled by passing `-DENABLE_UPNP=OFF` on the cmake command line):
 
     sudo apt-get install libminiupnpc-dev
 
 ZMQ dependencies (provides ZMQ API, can be disabled by passing `-DBUILD_BITCOIN_ZMQ=OFF` on the cmake command line):
 
     sudo apt-get install libzmq3-dev
 
 jemalloc dependencies (provides the jemalloc library, can be disabled by passing `-DUSE_JEMALLOC=OFF` on the cmake command line):
 
     sudo apt-get install libjemalloc-dev
 
 Dependencies for the GUI: Ubuntu & Debian
 -----------------------------------------
 
 If you want to build bitcoin-qt, make sure that the required packages for Qt development
 are installed. Qt 5 is necessary to build the GUI.
 To build without GUI pass `-DBUILD_BITCOIN_QT=OFF` on the cmake command line.
 
 To build with Qt 5 you need the following:
 
     sudo apt-get install libqt5gui5 libqt5core5a libqt5dbus5 qttools5-dev qttools5-dev-tools libprotobuf-dev protobuf-compiler
 
 libqrencode dependencies (can be disabled by passing `-DENABLE_QRCODE=OFF` on the cmake command line):
 
     sudo apt-get install libqrencode-dev
 
 Dependency Build Instructions: Fedora
 -------------------------------------
 Build requirements:
 
     sudo dnf install boost-devel cmake gcc-c++ libdb-cxx-devel libdb-devel libevent-devel ninja-build openssl-devel python3
 
 Minipupnc dependencies (can be disabled by passing `-DENABLE_UPNP=OFF` on the cmake command line):
 
     sudo dnf install miniupnpc-devel
 
 ZMQ dependencies (can be disabled by passing `-DBUILD_BITCOIN_ZMQ=OFF` on the cmake command line):
 
     sudo dnf install zeromq-devel
 
 To build with Qt 5 you need the following:
 
     sudo dnf install qt5-qttools-devel qt5-qtbase-devel protobuf-devel
 
 libqrencode dependencies (can be disabled by passing `-DENABLE_QRCODE=OFF`):
 
     sudo dnf install qrencode-devel
 
+SQLite can be installed with:
+
+    sudo dnf install sqlite-devel
+
 Notes
 -----
 The release is built with GCC and then "strip bitcoind" to strip the debug
 symbols, which reduces the executable size by about 90%.
 
 
 miniupnpc
 ---------
 
 [miniupnpc](https://miniupnp.tuxfamily.org) may be used for UPnP port mapping.  It can be downloaded from [here](
 https://miniupnp.tuxfamily.org/files/).  UPnP support is compiled in and
 turned off by default.  See the cmake options for upnp behavior desired:
 
     ENABLE_UPNP            Enable UPnP support (miniupnp required, default ON)
     START_WITH_UPNP        UPnP support turned on by default at runtime (default OFF)
 
 Boost
 -----
 For documentation on building Boost look at their official documentation: http://www.boost.org/build/doc/html/bbv2/installation.html
 
 Security
 --------
 To help make your Bitcoin ABC installation more secure by making certain attacks impossible to
 exploit even if a vulnerability is found, binaries are hardened by default.
 This can be disabled by passing `-DENABLE_HARDENING=OFF`.
 
 Hardening enables the following features:
 * _Position Independent Executable_: Build position independent code to take advantage of Address Space Layout Randomization
     offered by some kernels. Attackers who can cause execution of code at an arbitrary memory
     location are thwarted if they don't know where anything useful is located.
     The stack and heap are randomly located by default, but this allows the code section to be
     randomly located as well.
 
     On an AMD64 processor where a library was not compiled with -fPIC, this will cause an error
     such as: "relocation R_X86_64_32 against `......' can not be used when making a shared object;"
 
     To test that you have built PIE executable, install scanelf, part of paxutils, and use:
 
       scanelf -e ./bitcoin
 
     The output should contain:
 
       TYPE
       ET_DYN
 
 * _Non-executable Stack_: If the stack is executable then trivial stack-based buffer overflow exploits are possible if
     vulnerable buffers are found. By default, Bitcoin ABC should be built with a non-executable stack,
     but if one of the libraries it uses asks for an executable stack or someone makes a mistake
     and uses a compiler extension which requires an executable stack, it will silently build an
     executable without the non-executable stack protection.
 
     To verify that the stack is non-executable after compiling use:
 
       scanelf -e ./bitcoin
 
     The output should contain:
 
       STK/REL/PTL
       RW- R-- RW-
 
     The `STK RW-` means that the stack is readable and writeable but not executable.
 
 Disable-wallet mode
 --------------------
 When the intention is to run only a P2P node without a wallet, Bitcoin ABC may be compiled in
 disable-wallet mode by passing `-DBUILD_BITCOIN_WALLET=OFF` on the cmake command line.
 
 Mining is also possible in disable-wallet mode using the `getblocktemplate` RPC call.
 
 Additional cmake options
 --------------------------
 A list of the cmake options and their current value can be displayed.
 From the build subdirectory (see above), run `cmake -LH ..`.
 
 Setup and Build Example: Arch Linux
 -----------------------------------
 This example lists the steps necessary to setup and build a command line only,
 non-wallet distribution of the latest changes on Arch Linux:
 
     pacman -S base-devel boost cmake git libevent ninja python
     git clone https://github.com/Bitcoin-ABC/bitcoin-abc.git
     cd bitcoin-abc/
     mkdir build
     cd build
     cmake -GNinja .. -DBUILD_BITCOIN_WALLET=OFF -DBUILD_BITCOIN_QT=OFF -DENABLE_UPNP=OFF -DBUILD_BITCOIN_ZMQ=OFF -DUSE_JEMALLOC=OFF
     ninja
 
 ARM Cross-compilation
 -------------------
 These steps can be performed on, for example, a Debian VM. The depends system
 will also work on other Linux distributions, however the commands for
 installing the toolchain will be different.
 
 Make sure you install all the build requirements mentioned above.
 Then, install the toolchain and some additional dependencies:
 
     sudo apt-get install autoconf automake curl g++-arm-linux-gnueabihf gcc-arm-linux-gnueabihf gperf pkg-config
 
 To build executables for ARM:
 
     cd depends
     make build-linux-arm
     cd ..
     mkdir build
     cd build
     cmake -GNinja .. -DCMAKE_TOOLCHAIN_FILE=../cmake/platforms/LinuxARM.cmake -DENABLE_GLIBC_BACK_COMPAT=ON -DENABLE_STATIC_LIBSTDCXX=ON
     ninja
 
 
 For further documentation on the depends system see [README.md](../depends/README.md) in the depends directory.
 
 Build using a Docker container
 -------------------------------
 
 Bitcoin ABC provides a
 [Docker image](https://hub.docker.com/r/bitcoinabc/bitcoin-abc-dev) with all the
 dependencies pre-installed, based on Debian. If the dependencies cannot be
 installed on your system but it can run a Docker container, this image can be
 pulled and used for the build.
 
 *Note: The image has all the dependencies and can weight a few gigabytes.*
 
 To get the latest image (current master):
 
 ```shell
 docker pull bitcoinabc/bitcoin-abc-dev
 ```
 
 It is also possible to use a release version. Example for 0.22.4:
 
 ```shell
 docker pull bitcoinabc/bitcoin-abc-dev:0.22.4
 ```
 
 Running the container will start a `bash` shell at the project root:
 
 ```shell
 # On the host
 docker run -it bitcoinabc/bitcoin-abc-dev
 
 # Start the build in the container
 mkdir build
 cd build
 cmake -GNinja ..
 ninja
 ```
 
 It is possible to bind the project to a local directory on the host machine.
 First create an empty volume on the host:
 
 ```shell
 # On the host
 mkdir bitcoin-abc-volume
 docker volume create \
   --driver local \
   --opt type=none \
   --opt device=${PWD}/bitcoin-abc-volume \
   --opt o=bind \
   bitcoin-abc-volume
 ```
 
 Then start the container with the volume bound to `/bitcoin-abc`:
 
 ```shell
 docker run -it -v bitcoin-abc-volume:/bitcoin-abc bitcoinabc/bitcoin-abc-dev
 ```
diff --git a/doc/dependencies.md b/doc/dependencies.md
index 981f7b6ff..4f86203fe 100644
--- a/doc/dependencies.md
+++ b/doc/dependencies.md
@@ -1,49 +1,50 @@
 Dependencies
 ============
 
 These are the dependencies currently used by Bitcoin ABC. You can find instructions for installing them in the [`build-*.md`](../INSTALL.md) file for your platform.
 
 | Dependency | Version used | Minimum required | CVEs | Shared | [Bundled Qt library](https://doc.qt.io/qt-5/configure-options.html) |
 | --- | --- | --- | --- | --- | --- |
 | Berkeley DB | [5.3.28](http://www.oracle.com/technetwork/database/database-technologies/berkeleydb/downloads/index.html) | 5.3 | No |  |  |
 | Boost | [1.70.0](https://www.boost.org/users/download/) | 1.59.0 | No |  |  |
 | Clang |  | [5](https://releases.llvm.org/download.html) (C++17 support) |  |  |  |
 | CMake |  | [3.16](https://cmake.org/download/) |  |  |  |
 | Expat | [2.2.7](https://libexpat.github.io/) |  | No | Yes |  |
 | fontconfig | [2.12.6](https://www.freedesktop.org/software/fontconfig/release/) |  | No | Yes |  |
 | FreeType | [2.7.1](http://download.savannah.gnu.org/releases/freetype) |  | No |  |  |
 | GCC |  | [7](https://gcc.gnu.org/) (C++17 support) |  |  |  |
 | HarfBuzz-NG |  |  |  |  |  |
 | jemalloc | [5.2.1](https://github.com/jemalloc/jemalloc/releases) | 3.6.0 |  |  |  |
 | libevent | [2.1.11-stable](https://github.com/libevent/libevent/releases) | 2.0.22 | No |  |  |
 | libpng |  |  |  |  | Yes |
 | librsvg | |  |  |  |  |
 | MiniUPnPc | [2.0.20180203](https://miniupnp.tuxfamily.org/files) | 1.9 | No |  |  |
 | Ninja |  | [1.5.1](https://github.com/ninja-build/ninja/releases) |  |  |  |
 | OpenSSL | [1.0.1k](https://www.openssl.org/source) |  | Yes |  |  |
 | PCRE |  |  |  |  | Yes |
 | protobuf | [2.6.1](https://github.com/google/protobuf/releases) |  | No |  |  |
 | Python (tests) |  | [3.6](https://www.python.org/downloads) |  |  |  |
 | qrencode | [3.4.4](https://fukuchi.org/works/qrencode) |  | No |  |  |
 | Qt | [5.9.7](https://download.qt.io/official_releases/qt/) | 5.9.5 | No |  |  |
+| SQLite | [3.32.1](https://sqlite.org/download.html) | 3.7.17 |  |  |  |
 | XCB |  |  |  |  | Yes (Linux only) |
 | xkbcommon |  |  |  |  | Yes (Linux only) |
 | ZeroMQ | [4.3.1](https://github.com/zeromq/libzmq/releases) | 4.1.5 | No |  |  |
 | zlib | [1.2.11](http://zlib.net/) |  |  |  | No |
 
 Controlling dependencies
 ------------------------
 Some dependencies are not needed in all configurations. The following are some
 factors that affect the dependency list.
 
 #### Options passed to `cmake`
 * MiniUPnPc is not needed with  `-DENABLE_UPNP=OFF`.
-* Berkeley DB is not needed with `-DBUILD_BITCOIN_WALLET=OFF`.
+* Berkeley DB and SQLite are not needed with `-DBUILD_BITCOIN_WALLET=OFF`.
 * protobuf is not needed with `-DENABLE_BIP70=OFF`.
 * Qt is not needed with `-DBUILD_BITCOIN_QT=OFF`.
 * qrencode is not needed with `-DENABLE_QRCODE=OFF`.
 * ZeroMQ is not needed with the `-DBUILD_BITCOIN_ZMQ=OFF`.
 
 #### Other
 * librsvg is only needed if you need to run `ninja osx-dmg` on
   (cross-compilation to) macOS.
diff --git a/src/wallet/CMakeLists.txt b/src/wallet/CMakeLists.txt
index 29733adc7..669ae692c 100644
--- a/src/wallet/CMakeLists.txt
+++ b/src/wallet/CMakeLists.txt
@@ -1,38 +1,41 @@
 # Copyright (c) 2017 The Bitcoin developers
 
 project(wallet)
 
 # Add Berkeley DB dependency.
 find_package(BerkeleyDB 5.3 REQUIRED COMPONENTS CXX)
 
+# Add SQLite3 dependency.
+find_package(SQLite3 3.7.17 REQUIRED)
+
 # PR15638(https://reviews.bitcoinabc.org/D6000) moved some wallet load
 # functions to wallet/load.cpp, the others in wallet/init.cpp remain in
 # the server
 target_sources(server PRIVATE init.cpp)
 
 add_library(wallet
 	../interfaces/wallet.cpp
 	bdb.cpp
 	coincontrol.cpp
 	coinselection.cpp
 	context.cpp
 	crypter.cpp
 	db.cpp
 	fees.cpp
 	load.cpp
 	rpcdump.cpp
 	rpcwallet.cpp
 	salvage.cpp
 	scriptpubkeyman.cpp
 	wallet.cpp
 	walletdb.cpp
 	walletutil.cpp
 )
 
 # There is a circular dependency between wallet and server, see:
 # https://github.com/bitcoin/bitcoin/pull/14437#discussion_r226237048
-target_link_libraries(wallet bitcoinconsensus univalue BerkeleyDB::CXX)
+target_link_libraries(wallet bitcoinconsensus univalue BerkeleyDB::CXX SQLite::SQLite3)
 
 # wallet-tool library
 add_library(wallet-tool wallettool.cpp)
 target_link_libraries(wallet-tool wallet)