diff --git a/configure.ac b/configure.ac
index 9c42c01192..b740b79765 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4,7 +4,7 @@ define(_CLIENT_VERSION_MAJOR,       1)
 define(_CLIENT_VERSION_MINOR,       0)
 define(_CLIENT_VERSION_REVISION, 0)
 define(_CLIENT_VERSION_BUILD,       0)
-define(_CLIENT_VERSION_IS_RELEASE, false)
+define(_CLIENT_VERSION_IS_RELEASE, true)
 define(_COPYRIGHT_YEAR, 2020)
 define(_COPYRIGHT_HOLDERS,[The %s developers])
 define(_COPYRIGHT_HOLDERS_SUBSTITUTION,[[Novo]])
diff --git a/contrib/gitian-descriptors/gitian-linux.yml b/contrib/gitian-descriptors/gitian-linux.yml
index f467414d96..f460965044 100644
--- a/contrib/gitian-descriptors/gitian-linux.yml
+++ b/contrib/gitian-descriptors/gitian-linux.yml
@@ -45,11 +45,11 @@ script: |
 
   WRAP_DIR=$HOME/wrapped
   HOSTS="i686-pc-linux-gnu x86_64-linux-gnu arm-linux-gnueabihf aarch64-linux-gnu riscv64-linux-gnu"
-  CONFIGFLAGS="--enable-glibc-back-compat --enable-reduce-exports --disable-gui-tests --disable-bench --disable-tests --disable-man --disable-zmq --with-utils  --with-daemon --with-node-js-libs --with-qrencode --with-gui=no"
+  CONFIGFLAGS="--enable-glibc-back-compat --enable-reduce-exports --disable-gui-tests --disable-bench --disable-tests --disable-tests --disable-man --disable-zmq --with-utils  --with-daemon --with-node-js-libs --with-qrencode --with-gui=no"
   FAKETIME_HOST_PROGS="gcc g++"
   FAKETIME_PROGS="date ar ranlib nm"
-  HOST_CFLAGS="-O2 -g"
-  HOST_CXXFLAGS="-O2 -g"
+  HOST_CFLAGS="-O3 -g"
+  HOST_CXXFLAGS="-O3 -g"
   HOST_LDFLAGS=-static-libstdc++
 
   export QT_RCC_TEST=1
diff --git a/contrib/gitian-descriptors/gitian-osx.yml b/contrib/gitian-descriptors/gitian-osx.yml
index 4a6b52f068..ec94e5f689 100644
--- a/contrib/gitian-descriptors/gitian-osx.yml
+++ b/contrib/gitian-descriptors/gitian-osx.yml
@@ -46,11 +46,11 @@ script: |
 
   WRAP_DIR=$HOME/wrapped
   HOSTS="x86_64-apple-darwin14"
-  CONFIGFLAGS="--enable-reduce-exports --disable-gui-tests GENISOIMAGE=$WRAP_DIR/genisoimage --disable-bench --disable-tests --disable-man --disable-zmq --without-utils  --without-daemon --with-node-js-libs --with-qrencode --with-gui=no"
+  CONFIGFLAGS="--enable-reduce-exports --disable-gui-tests GENISOIMAGE=$WRAP_DIR/genisoimage --disable-bench --disable-tests --disable-tests --disable-man --disable-zmq --without-utils  --without-daemon --with-node-js-libs --with-qrencode --with-gui=no"
   FAKETIME_HOST_PROGS=""
   FAKETIME_PROGS="ar ranlib date dmg genisoimage"
-  HOST_CFLAGS="-O2 -g"
-  HOST_CXXFLAGS="-O2 -g"
+  HOST_CFLAGS="-O3 -g"
+  HOST_CXXFLAGS="-O3 -g"
   HOST_LDFLAGS=
 
 
diff --git a/contrib/gitian-descriptors/gitian-win.yml b/contrib/gitian-descriptors/gitian-win.yml
index 0ee0188ab2..a674783224 100644
--- a/contrib/gitian-descriptors/gitian-win.yml
+++ b/contrib/gitian-descriptors/gitian-win.yml
@@ -41,11 +41,11 @@ files:
 script: |
   WRAP_DIR=$HOME/wrapped
   HOSTS="x86_64-w64-mingw32 i686-w64-mingw32"
-  CONFIGFLAGS="--enable-reduce-exports --disable-gui-tests --disable-bench --disable-tests --disable-man --disable-zmq --without-utils  --without-daemon --with-node-js-libs --with-qrencode --with-gui=no"
+  CONFIGFLAGS="--enable-reduce-exports --disable-gui-tests --disable-bench --disable-tests --disable-tests --disable-man --disable-zmq --without-utils  --without-daemon --with-node-js-libs --with-qrencode --with-gui=no"
   FAKETIME_HOST_PROGS="ar ranlib nm windres strip objcopy"
   FAKETIME_PROGS="date makensis zip"
-  HOST_CFLAGS="-O2 -g"
-  HOST_CXXFLAGS="-O2 -g"
+  HOST_CFLAGS="-O3 -g"
+  HOST_CXXFLAGS="-O3 -g"
 
   export QT_RCC_TEST=1
   export QT_RCC_SOURCE_DATE_OVERRIDE=1