diff --git a/tools/release/publish_delivery_linux.sh b/tools/release/publish_delivery_linux.sh
index fcd132729e..a082bb3dc2 100755
--- a/tools/release/publish_delivery_linux.sh
+++ b/tools/release/publish_delivery_linux.sh
@@ -76,9 +76,9 @@ function publish_java() {
   if [[ -x "$(command -v openssl11)" ]]; then
     OPENSSL_PRG=openssl11
   fi
-  command -v $OPENSSL_PRG | xargs echo "openssl: " | tee -a build.log
+  command -v $OPENSSL_PRG | xargs echo "openssl: " | tee -a publish.log
   command -v gpg
-  command -v gpg | xargs echo "gpg: " | tee -a build.log
+  command -v gpg | xargs echo "gpg: " | tee -a publish.log
 
   echo -n "Publish native Java..." | tee -a publish.log
   cmake --build temp_java --target java_native_deploy -v
diff --git a/tools/release/publish_delivery_manylinux_amd64.sh b/tools/release/publish_delivery_manylinux_amd64.sh
index 9f67999de1..17236e7688 100755
--- a/tools/release/publish_delivery_manylinux_amd64.sh
+++ b/tools/release/publish_delivery_manylinux_amd64.sh
@@ -109,7 +109,7 @@ function main() {
   local -r RELEASE_DIR="$(cd -P -- "$(dirname -- "$0")" && pwd -P)"
   echo "RELEASE_DIR: '${RELEASE_DIR}'" | tee -a publish.log
 
-  (cd "${ROOT_DIR}" && make print-OR_TOOLS_VERSION | tee -a build.log)
+  (cd "${ROOT_DIR}" && make print-OR_TOOLS_VERSION | tee -a publish.log)
 
   local -r ORTOOLS_BRANCH=$(git rev-parse --abbrev-ref HEAD)
   local -r ORTOOLS_SHA1=$(git rev-parse --verify HEAD)
@@ -124,8 +124,9 @@ function main() {
       "publish_$1"
       exit ;;
     all)
+      #publish_dotnet
       publish_java
-      publish_python
+      #publish_python
       exit ;;
     *)
       >&2 echo "Target '${1}' unknown"
diff --git a/tools/release/publish_delivery_manylinux_arm64.sh b/tools/release/publish_delivery_manylinux_arm64.sh
index 5c444b2356..7c1e655f32 100755
--- a/tools/release/publish_delivery_manylinux_arm64.sh
+++ b/tools/release/publish_delivery_manylinux_arm64.sh
@@ -109,7 +109,7 @@ function main() {
   local -r RELEASE_DIR="$(cd -P -- "$(dirname -- "$0")" && pwd -P)"
   echo "RELEASE_DIR: '${RELEASE_DIR}'" | tee -a publish.log
 
-  (cd "${ROOT_DIR}" && make print-OR_TOOLS_VERSION | tee -a build.log)
+  (cd "${ROOT_DIR}" && make print-OR_TOOLS_VERSION | tee -a publish.log)
 
   local -r ORTOOLS_BRANCH=$(git rev-parse --abbrev-ref HEAD)
   local -r ORTOOLS_SHA1=$(git rev-parse --verify HEAD)
@@ -124,8 +124,9 @@ function main() {
       "publish_$1"
       exit ;;
     all)
+      #publish_dotnet
       publish_java
-      publish_python
+      #publish_python
       exit ;;
     *)
       >&2 echo "Target '${1}' unknown"
diff --git a/tools/release/publish_delivery_meta.sh b/tools/release/publish_delivery_meta.sh
new file mode 100755
index 0000000000..14df6f295f
--- /dev/null
+++ b/tools/release/publish_delivery_meta.sh
@@ -0,0 +1,126 @@
+#!/usr/bin/env bash
+# Copyright 2010-2025 Google LLC
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -eo pipefail
+
+function help() {
+  local -r NAME=$(basename "$0")
+  local -r BOLD="\e[1m"
+  local -r RESET="\e[0m"
+  local -r help=$(cat << EOF
+${BOLD}NAME${RESET}
+\t$NAME - Publish delivery using the ${BOLD}local host system${RESET}.
+${BOLD}SYNOPSIS${RESET}
+\t$NAME [-h|--help] [java]
+${BOLD}DESCRIPTION${RESET}
+\tPublish Google OR-Tools deliveries.
+\tYou ${BOLD}MUST${RESET} define the following variables before running this script:
+\t* ORTOOLS_TOKEN: secret use to decrypt key to sign Java package.
+
+${BOLD}OPTIONS${RESET}
+\t-h --help: display this help text
+\tjava: publish the Java runtime packages
+\tall: publish everything (default)
+
+${BOLD}EXAMPLES${RESET}
+Using export to define the ${BOLD}ORTOOLS_TOKEN${RESET} env and only publishing the Java packages:
+export ORTOOLS_TOKEN=SECRET
+$0 java
+
+note: the 'export ORTOOLS_TOKEN=...' should be placed in your bashrc to avoid any leak
+of the secret in your bash history
+EOF
+)
+  echo -e "$help"
+}
+
+function assert_defined(){
+  if [[ -z "${!1}" ]]; then
+    >&2 echo "Variable '${1}' must be defined"
+    exit 1
+  fi
+}
+
+# Java publish
+function publish_java() {
+  if echo "${ORTOOLS_BRANCH} ${ORTOOLS_SHA1}" | cmp --silent "${ROOT_DIR}/export_meta/meta_java_publish" -; then
+    echo "publish Java up to date!"
+    return 0
+  fi
+
+  # maven require JAVA_HOME
+  if [[ -z "${JAVA_HOME}" ]]; then
+    echo "JAVA_HOME: not found !" | tee publish.log
+    exit 1
+  else
+    echo "JAVA_HOME: ${JAVA_HOME}" | tee -a publish.log
+    command -v mvn
+    command -v mvn | xargs echo "mvn: " | tee -a publish.log
+    java -version 2>&1 | tee -a publish.log
+    java -version 2>&1 | head -n 1 | grep -q "1.8"
+  fi
+  # Maven central need gpg sign and we store the release key encoded using openssl
+  local OPENSSL_PRG=openssl
+  if [[ -x "$(command -v openssl11)" ]]; then
+    OPENSSL_PRG=openssl11
+  fi
+  command -v $OPENSSL_PRG | xargs echo "openssl: " | tee -a publish.log
+  command -v gpg
+  command -v gpg | xargs echo "gpg: " | tee -a publish.log
+
+  echo -n "Publish native Java..." | tee -a publish.log
+  cmake --build temp_meta_java --config Release --target java_deploy -v
+  echo "DONE" | tee -a publish.log
+
+  echo "${ORTOOLS_BRANCH} ${ORTOOLS_SHA1}" > "${ROOT_DIR}/export_meta/meta_java_publish"
+}
+
+# Main
+function main() {
+  case ${1} in
+    -h | --help)
+      help; exit ;;
+  esac
+
+  assert_defined ORTOOLS_TOKEN
+  echo "ORTOOLS_TOKEN: FOUND" | tee publish.log
+  make print-OR_TOOLS_VERSION | tee -a publish.log
+
+  local -r ROOT_DIR="$(cd -P -- "$(dirname -- "$0")/../.." && pwd -P)"
+  echo "ROOT_DIR: '${ROOT_DIR}'"
+
+  local -r RELEASE_DIR="$(cd -P -- "$(dirname -- "$0")" && pwd -P)"
+  echo "RELEASE_DIR: '${RELEASE_DIR}'"
+
+  local -r ORTOOLS_BRANCH=$(git rev-parse --abbrev-ref HEAD)
+  local -r ORTOOLS_SHA1=$(git rev-parse --verify HEAD)
+  local -r PLATFORM=$(uname -m)
+
+  mkdir -p export
+  case ${1} in
+    java)
+      "publish_$1"
+      exit ;;
+    all)
+      publish_java
+      exit ;;
+    *)
+      >&2 echo "Target '${1}' unknown"
+      exit 1
+  esac
+  exit 0
+}
+
+main "${1:-all}"
+
diff --git a/tools/release/publish_delivery_win.cmd b/tools/release/publish_delivery_win.cmd
index 4af40864b2..644871aba2 100644
--- a/tools/release/publish_delivery_win.cmd
+++ b/tools/release/publish_delivery_win.cmd
@@ -83,9 +83,9 @@ which.exe mvn || exit 1
 which.exe mvn | tee.exe -a publish.log
 
 which.exe gpg || exit 1
-which.exe gpg | tee.exe -a build.log
+which.exe gpg | tee.exe -a publish.log
 which.exe openssl || exit 1
-which.exe openssl | tee.exe -a build.log
+which.exe openssl | tee.exe -a publish.log
 
 echo Publish native Java... | tee.exe -a publish.log
 cmake --build temp_java --config Release --target java_native_deploy -v