diff --git a/src/DIRAC/Core/Base/AgentModule.py b/src/DIRAC/Core/Base/AgentModule.py
index b2c3cf0b64c..18e0f08187a 100644
--- a/src/DIRAC/Core/Base/AgentModule.py
+++ b/src/DIRAC/Core/Base/AgentModule.py
@@ -1,24 +1,25 @@
 """
   Base class for all agent modules
 """
+import datetime
+import importlib.metadata
+import inspect
 import os
+import signal
 import threading
 import time
-import signal
-import importlib.metadata
-import inspect
-import datetime
+
 import psutil
 
 import DIRAC
-from DIRAC import S_OK, S_ERROR, gConfig, gLogger, rootPath
-from DIRAC.Core.Utilities.File import mkDir
+from DIRAC import S_ERROR, S_OK, gConfig, gLogger, rootPath
+from DIRAC.ConfigurationSystem.Client import PathFinder
+from DIRAC.ConfigurationSystem.Client.Helpers.Operations import Operations
 from DIRAC.Core.Utilities import Network, TimeUtilities
-from DIRAC.Core.Utilities.Shifter import setupShifterProxyInEnv
+from DIRAC.Core.Utilities.File import mkDir
 from DIRAC.Core.Utilities.ReturnValues import isReturnStructure
-from DIRAC.ConfigurationSystem.Client import PathFinder
+from DIRAC.Core.Utilities.Shifter import setupShifterProxyInEnv
 from DIRAC.Core.Utilities.ThreadScheduler import gThreadScheduler
-from DIRAC.ConfigurationSystem.Client.Helpers.Operations import Operations
 
 
 class AgentModule:
@@ -68,7 +69,6 @@ def __init__(self, agentName, loadName, baseAgentName=False, properties={}):
         They are used to populate __codeProperties
 
         The following Options are used from the Configuration:
-        - /DIRAC/Setup
         - Status
         - Enabled
         - PollingTime            default = 120
@@ -113,7 +113,6 @@ def __init__(self, agentName, loadName, baseAgentName=False, properties={}):
             "loadSection": PathFinder.getAgentSection(loadName),
             "cyclesDone": 0,
             "totalElapsedTime": 0,
-            "setup": gConfig.getValue("/DIRAC/Setup", "Unknown"),
             "alive": True,
         }
         self.__moduleProperties["system"], self.__moduleProperties["agentName"] = agentName.split("/")
@@ -201,7 +200,6 @@ def am_initialize(self, *initArgs):
         self.log.notice("=" * 40)
         self.log.notice(f"Loaded agent module {self.__moduleProperties['fullName']}")
         self.log.notice(f" Site: {DIRAC.siteName()}")
-        self.log.notice(f" Setup: {gConfig.getValue('/DIRAC/Setup')}")
         self.log.notice(f" Agent version: {self.__codeProperties['version']}")
         self.log.notice(f" DIRAC version: {DIRAC.version}")
         self.log.notice(f" DIRAC platform: {DIRAC.getPlatform()}")
diff --git a/src/DIRAC/Core/Base/ExecutorModule.py b/src/DIRAC/Core/Base/ExecutorModule.py
index 346f1cf5761..d418e80860f 100644
--- a/src/DIRAC/Core/Base/ExecutorModule.py
+++ b/src/DIRAC/Core/Base/ExecutorModule.py
@@ -3,10 +3,11 @@
     Just provides a number of functions used by all executors
 """
 import os
-from DIRAC import S_OK, S_ERROR, gConfig, gLogger, rootPath
+
+from DIRAC import S_ERROR, S_OK, gConfig, gLogger, rootPath
 from DIRAC.ConfigurationSystem.Client import PathFinder
-from DIRAC.Core.Utilities.Shifter import setupShifterProxyInEnv
 from DIRAC.Core.Utilities.ReturnValues import isReturnStructure
+from DIRAC.Core.Utilities.Shifter import setupShifterProxyInEnv
 
 
 class ExecutorModule:
@@ -21,7 +22,6 @@ def _ex_initialize(cls, exeName, loadName):
             "loadSection": PathFinder.getExecutorSection(loadName),
             "messagesProcessed": 0,
             "reconnects": 0,
-            "setup": gConfig.getValue("/DIRAC/Setup", "Unknown"),
         }
         cls.__defaults = {}
         cls.__defaults["MonitoringEnabled"] = True
diff --git a/src/DIRAC/DataManagementSystem/scripts/dirac_admin_allow_se.py b/src/DIRAC/DataManagementSystem/scripts/dirac_admin_allow_se.py
index 5f7fb48258e..782a9596c6d 100755
--- a/src/DIRAC/DataManagementSystem/scripts/dirac_admin_allow_se.py
+++ b/src/DIRAC/DataManagementSystem/scripts/dirac_admin_allow_se.py
@@ -50,7 +50,7 @@ def main():
             site = switch[1]
 
     # imports
-    from DIRAC import gConfig, gLogger
+    from DIRAC import gLogger
     from DIRAC.ConfigurationSystem.Client.Helpers.Operations import Operations
     from DIRAC.ConfigurationSystem.Client.Helpers.Resources import getSites
     from DIRAC.Core.Security.ProxyInfo import getProxyInfo
@@ -68,11 +68,6 @@ def main():
 
     ses = resolveSEGroup(ses)
     diracAdmin = DiracAdmin()
-    errorList = []
-    setup = gConfig.getValue("/DIRAC/Setup", "")
-    if not setup:
-        print("ERROR: Could not contact Configuration Service")
-        DIRAC.exit(2)
 
     res = getProxyInfo()
     if not res["OK"]:
diff --git a/src/DIRAC/DataManagementSystem/scripts/dirac_admin_ban_se.py b/src/DIRAC/DataManagementSystem/scripts/dirac_admin_ban_se.py
index b0ae844875a..3034ec84e3c 100755
--- a/src/DIRAC/DataManagementSystem/scripts/dirac_admin_ban_se.py
+++ b/src/DIRAC/DataManagementSystem/scripts/dirac_admin_ban_se.py
@@ -58,19 +58,15 @@ def main():
             sites = switch[1].split(",")
 
     # from DIRAC.ConfigurationSystem.Client.CSAPI           import CSAPI
-    from DIRAC import gConfig, gLogger
+    from DIRAC import gLogger
     from DIRAC.ConfigurationSystem.Client.Helpers.Operations import Operations
     from DIRAC.Core.Security.ProxyInfo import getProxyInfo
+    from DIRAC.DataManagementSystem.Utilities.DMSHelpers import DMSHelpers, resolveSEGroup
     from DIRAC.Interfaces.API.DiracAdmin import DiracAdmin
     from DIRAC.ResourceStatusSystem.Client.ResourceStatus import ResourceStatus
-    from DIRAC.DataManagementSystem.Utilities.DMSHelpers import resolveSEGroup, DMSHelpers
 
     ses = resolveSEGroup(ses)
     diracAdmin = DiracAdmin()
-    setup = gConfig.getValue("/DIRAC/Setup", "")
-    if not setup:
-        print("ERROR: Could not contact Configuration Service")
-        DIRAC.exit(2)
 
     res = getProxyInfo()
     if not res["OK"]:
diff --git a/src/DIRAC/Interfaces/scripts/dirac_admin_allow_site.py b/src/DIRAC/Interfaces/scripts/dirac_admin_allow_site.py
index 09d3a8102af..7722d549a5e 100755
--- a/src/DIRAC/Interfaces/scripts/dirac_admin_allow_site.py
+++ b/src/DIRAC/Interfaces/scripts/dirac_admin_allow_site.py
@@ -22,9 +22,10 @@ def main():
     Script.registerArgument("Comment:  Reason of the action")
     Script.parseCommandLine(ignoreErrors=True)
 
-    from DIRAC.Interfaces.API.DiracAdmin import DiracAdmin
+    from DIRAC import exit as DIRACExit
+    from DIRAC import gLogger
     from DIRAC.ConfigurationSystem.Client.Helpers.Operations import Operations
-    from DIRAC import exit as DIRACExit, gConfig, gLogger
+    from DIRAC.Interfaces.API.DiracAdmin import DiracAdmin
 
     def getBoolean(value):
         if value.lower() == "true":
@@ -42,11 +43,6 @@ def getBoolean(value):
     diracAdmin = DiracAdmin()
     exitCode = 0
     errorList = []
-    setup = gConfig.getValue("/DIRAC/Setup", "")
-    if not setup:
-        print("ERROR: Could not contact Configuration Service")
-        exitCode = 2
-        DIRACExit(exitCode)
 
     # result = promptUser(
     #     'All the elements that are associated with this site will be active, '
@@ -70,10 +66,9 @@ def getBoolean(value):
                 exitCode = 2
                 DIRACExit(exitCode)
             userName = userName["Value"]
-            subject = f"{site} is added in site mask for {setup} setup"
-            body = "Site {} is added to the site mask for {} setup by {} on {}.\n\n".format(
+            subject = f"{site} is added in site mask"
+            body = "Site {} is added to the site mask by {} on {}.\n\n".format(
                 site,
-                setup,
                 userName,
                 time.asctime(),
             )
diff --git a/src/DIRAC/Interfaces/scripts/dirac_admin_ban_site.py b/src/DIRAC/Interfaces/scripts/dirac_admin_ban_site.py
index 2bea4e45360..c4c950ac64f 100755
--- a/src/DIRAC/Interfaces/scripts/dirac_admin_ban_site.py
+++ b/src/DIRAC/Interfaces/scripts/dirac_admin_ban_site.py
@@ -22,10 +22,10 @@ def main():
     Script.registerArgument("Comment:  Reason of the action")
     Script.parseCommandLine(ignoreErrors=True)
 
-    from DIRAC import exit as DIRACExit, gConfig, gLogger
-    from DIRAC.Core.Utilities.PromptUser import promptUser
-    from DIRAC.Interfaces.API.DiracAdmin import DiracAdmin
+    from DIRAC import exit as DIRACExit
+    from DIRAC import gLogger
     from DIRAC.ConfigurationSystem.Client.Helpers.Operations import Operations
+    from DIRAC.Interfaces.API.DiracAdmin import DiracAdmin
 
     def getBoolean(value):
         if value.lower() == "true":
@@ -43,11 +43,6 @@ def getBoolean(value):
     diracAdmin = DiracAdmin()
     exitCode = 0
     errorList = []
-    setup = gConfig.getValue("/DIRAC/Setup", "")
-    if not setup:
-        print("ERROR: Could not contact Configuration Service")
-        exitCode = 2
-        DIRACExit(exitCode)
 
     # result = promptUser(
     #     'All the elements that are associated with this site will be banned,'
@@ -71,10 +66,9 @@ def getBoolean(value):
                 exitCode = 2
                 DIRACExit(exitCode)
             userName = userName["Value"]
-            subject = f"{site} is banned for {setup} setup"
-            body = "Site {} is removed from site mask for {} setup by {} on {}.\n\n".format(
+            subject = f"{site} is banned"
+            body = "Site {} is removed from site mask by {} on {}.\n\n".format(
                 site,
-                setup,
                 userName,
                 time.asctime(),
             )
diff --git a/src/DIRAC/Resources/Computing/SingularityComputingElement.py b/src/DIRAC/Resources/Computing/SingularityComputingElement.py
index 0c1791bba76..a010cae483a 100644
--- a/src/DIRAC/Resources/Computing/SingularityComputingElement.py
+++ b/src/DIRAC/Resources/Computing/SingularityComputingElement.py
@@ -175,8 +175,6 @@ def __getInstallFlags(self, infoDict=None):
         setup = infoDict.get("DefaultSetup")
         if not setup:
             setup = list(infoDict.get("Setups"))[0]
-        if not setup:
-            setup = gConfig.getValue("/DIRAC/Setup", "unknown")
         setup = str(setup)
 
         diracProject = "DIRAC"
@@ -205,8 +203,6 @@ def __getConfigFlags(infoDict=None):
         cfgOpts = []
 
         setup = infoDict.get("DefaultSetup")
-        if not setup:
-            setup = gConfig.getValue("/DIRAC/Setup", "unknown")
         cfgOpts.append(f"-S '{setup}'")
 
         csServers = infoDict.get("ConfigurationServers")
diff --git a/src/DIRAC/WorkloadManagementSystem/Agent/SiteDirector.py b/src/DIRAC/WorkloadManagementSystem/Agent/SiteDirector.py
index b67c2c7eb59..9217b190970 100644
--- a/src/DIRAC/WorkloadManagementSystem/Agent/SiteDirector.py
+++ b/src/DIRAC/WorkloadManagementSystem/Agent/SiteDirector.py
@@ -610,12 +610,7 @@ def _getPilotOptions(self, queue: str) -> list[str]:
         queueDict = self.queueDict[queue]["ParametersDict"]
         pilotOptions = []
 
-        setup = gConfig.getValue("/DIRAC/Setup", "unknown")
-        if setup == "unknown":
-            self.log.error("Setup is not defined in the configuration")
-            return []
-        pilotOptions.append(f"-S {setup}")
-        opsHelper = Operations(vo=self.vo, setup=setup)
+        opsHelper = Operations(vo=self.vo)
 
         # Installation defined?
         installationName = opsHelper.getValue("Pilot/Installation", "")
diff --git a/src/DIRAC/WorkloadManagementSystem/JobWrapper/test/Test_JobWrapper.py b/src/DIRAC/WorkloadManagementSystem/JobWrapper/test/Test_JobWrapper.py
index ff2bb185152..489b7408b37 100644
--- a/src/DIRAC/WorkloadManagementSystem/JobWrapper/test/Test_JobWrapper.py
+++ b/src/DIRAC/WorkloadManagementSystem/JobWrapper/test/Test_JobWrapper.py
@@ -1,16 +1,16 @@
 """ Test class for JobWrapper
 """
 import os
-from pathlib import Path
 import shutil
 import tempfile
 import time
+from pathlib import Path
 from unittest.mock import MagicMock
 
 import pytest
 
 import DIRAC
-from DIRAC import gLogger, S_OK
+from DIRAC import S_OK, gLogger
 from DIRAC.Core.Utilities import DErrno
 from DIRAC.Core.Utilities.ReturnValues import S_ERROR
 from DIRAC.DataManagementSystem.Client.test.mock_DM import dm_mock
@@ -19,7 +19,6 @@
 from DIRAC.WorkloadManagementSystem.JobWrapper.JobExecutionCoordinator import JobExecutionCoordinator
 from DIRAC.WorkloadManagementSystem.JobWrapper.JobWrapper import JobWrapper
 
-
 gLogger.setLevel("DEBUG")
 
 # -------------------------------------------------------------------------------------------------
@@ -229,7 +228,7 @@ def test_processSuccessfulDiracJobExec(mocker):
         jw.outputFile = std_out.name
         jw.errorFile = std_err.name
         result = jw.process(
-            command=f"{executable} {os.path.dirname(os.path.abspath(__file__))}/jobDescription.xml --o /DIRAC/Setup=Test",
+            command=f"{executable} {os.path.dirname(os.path.abspath(__file__))}/jobDescription.xml",
             env={},
         )
 
@@ -573,7 +572,7 @@ def test_postProcess_subprocess_not_complete(setup_job_wrapper, mocker, mock_rep
         ("script-RESC.sh", None, "src/DIRAC/WorkloadManagementSystem/JobWrapper/test/", "Going to reschedule job"),
         (
             "src/DIRAC/WorkloadManagementSystem/scripts/dirac_jobexec.py",
-            "src/DIRAC/WorkloadManagementSystem/JobWrapper/test/jobDescription.xml -o /DIRAC/Setup=Test",
+            "src/DIRAC/WorkloadManagementSystem/JobWrapper/test/jobDescription.xml",
             None,
             "Application Finished Successfully",
         ),
diff --git a/src/DIRAC/WorkloadManagementSystem/Utilities/PilotCStoJSONSynchronizer.py b/src/DIRAC/WorkloadManagementSystem/Utilities/PilotCStoJSONSynchronizer.py
index 7327b4f89c0..12e912c0382 100644
--- a/src/DIRAC/WorkloadManagementSystem/Utilities/PilotCStoJSONSynchronizer.py
+++ b/src/DIRAC/WorkloadManagementSystem/Utilities/PilotCStoJSONSynchronizer.py
@@ -4,20 +4,20 @@
   these are incorporated to the file.
   The module uploads to a web server the latest version of the pilot scripts.
 """
-import os
+import datetime
 import glob
+import os
 import shutil
 import tarfile
-import datetime
 from typing import Any
 
 from git import Repo
 
-from DIRAC import gLogger, gConfig, S_OK
+from DIRAC import S_OK, gConfig, gLogger
 from DIRAC.ConfigurationSystem.Client.ConfigurationData import gConfigurationData
 from DIRAC.ConfigurationSystem.Client.Helpers.Operations import Operations
 from DIRAC.ConfigurationSystem.Client.Helpers.Path import cfgPath
-from DIRAC.Core.Utilities.ReturnValues import DReturnType, DOKReturnType
+from DIRAC.Core.Utilities.ReturnValues import DOKReturnType, DReturnType
 
 
 class PilotCStoJSONSynchronizer:
@@ -40,7 +40,6 @@ def __init__(self):
         # pilot sync default parameters
         self.pilotRepo = "https://github.com/DIRACGrid/Pilot.git"  # repository of the pilot
         self.pilotVORepo = ""  # repository of the VO that can contain a pilot extension
-        self.pilotSetup = gConfig.getValue("/DIRAC/Setup", "")
         self.projectDir = ""
         # where the find the pilot scripts in the VO pilot repository
         self.pilotScriptPath = "Pilot"  # where the find the pilot scripts in the pilot repository
@@ -87,7 +86,7 @@ def getCSDict(self, includeMasterCS: bool = True) -> DReturnType[Any]:
         pilotDict.update(opRes["Value"])
 
         # we still need a pilotVOVersion
-        self.opsHelper = Operations(setup=self.pilotSetup)
+        self.opsHelper = Operations()
         self.pilotVOVersion = self.opsHelper.getValue("/Pilot/Version")
         # if self.pilotVORepo is defined and self.pilotVOVersion is not, syncScripts is likely to fail.
         if self.pilotVOVersion is None and self.pilotVORepo:
diff --git a/tests/CI/install_client.sh b/tests/CI/install_client.sh
index 85db87fb450..c2e72e586a3 100755
--- a/tests/CI/install_client.sh
+++ b/tests/CI/install_client.sh
@@ -51,7 +51,6 @@ echo -e "*** $(date -u) **** Got the DIRAC tests ****\n"
 
 source "${DIRAC_CI_SETUP_SCRIPT}"
 # shellcheck disable=SC2034
-DIRACSETUP=$(< "${INSTALL_CFG_FILE}" grep "Setup = " | cut -f5 -d " ")
 
 echo -e "*** $(date -u) **** Client INSTALLATION START ****\n"
 
diff --git a/tests/Jenkins/utilities.sh b/tests/Jenkins/utilities.sh
index 7423902ce07..616731acffb 100644
--- a/tests/Jenkins/utilities.sh
+++ b/tests/Jenkins/utilities.sh
@@ -218,7 +218,7 @@ getCFGFile() {
 # - can get a $DIRAC_RELEASE env var defined
 # - or list of $ALTERNATIVE_MODULES
 #
-# it also wants the env variables $DIRACSETUP and $CSURL
+# it also wants the env variable $CSURL
 #
 # dirac-configure also accepts a env variable $CONFIGUREOPTIONS
 #  (e.g. useful for extensions or for using the certificates:
@@ -272,7 +272,7 @@ installDIRAC() {
   echo "$PATH"
 
   # now configuring
-  cmd="dirac-configure -S ${DIRACSETUP} -C ${CSURL} --SkipCAChecks ${CONFIGUREOPTIONS} ${DEBUG}"
+  cmd="dirac-configure -C ${CSURL} --SkipCAChecks ${CONFIGUREOPTIONS} ${DEBUG}"
   if ! bash -c "${cmd}"; then
     echo 'ERROR: dirac-configure failed' >&2
     exit 1
@@ -305,7 +305,6 @@ function installDIRACX() {
 # it needs the following environment variables:
 # $DIRACUSERDN for the DN of the user used to submit the job
 # $DIRACUSERROLE for the role of the proxy of the user used to submit the job
-# $DIRACSETUP for the setup
 
 submitJob() {
   #This has to be executed from the ${CLIENTINSTALLDIR}
@@ -330,13 +329,13 @@ submitJob() {
     set -e
   fi
 
-  dirac-admin-get-proxy "${DIRACUSERDN}" "${DIRACUSERROLE}" -o /DIRAC/Security/UseServerCertificate=True -o /DIRAC/Security/CertFile=/home/dirac/certs/hostcert.pem -o /DIRAC/Security/KeyFile=/home/dirac/certs/hostkey.pem -o /DIRAC/Setup="${DIRACSETUP}" --out="/tmp/x509up_u${UID}" -ddd
+  dirac-admin-get-proxy "${DIRACUSERDN}" "${DIRACUSERROLE}" -o /DIRAC/Security/UseServerCertificate=True -o /DIRAC/Security/CertFile=/home/dirac/certs/hostcert.pem -o /DIRAC/Security/KeyFile=/home/dirac/certs/hostkey.pem  --out="/tmp/x509up_u${UID}" -ddd
   if [[ -f "${TESTCODE}/${VO}DIRAC/tests/Jenkins/dirac-test-job.py" ]]; then
     cp "${TESTCODE}/${VO}DIRAC/tests/Jenkins/dirac-test-job.py" "."
   else
     cp "${TESTCODE}/DIRAC/tests/Jenkins/dirac-test-job.py" "."
   fi
-  python dirac-test-job.py -o "/DIRAC/Setup=${DIRACSETUP}" "${DEBUG}"
+  python dirac-test-job.py "${DEBUG}"
 
   echo '==> Done submitJob'
 }
@@ -353,7 +352,7 @@ getUserProxy() {
     cfgFile="${CLIENTINSTALLDIR}/diracos/etc/dirac.cfg"
   fi
 
-  if ! python dirac-cfg-update.py -S "${DIRACSETUP}" --cfg "${cfgFile}" -F "${cfgFile}" -o /DIRAC/Security/UseServerCertificate=True -o /DIRAC/Security/CertFile=/home/dirac/certs/hostcert.pem -o /DIRAC/Security/KeyFile=/home/dirac/certs/hostkey.pem "${DEBUG}"; then
+  if ! python dirac-cfg-update.py --cfg "${cfgFile}" -F "${cfgFile}" -o /DIRAC/Security/UseServerCertificate=True -o /DIRAC/Security/CertFile=/home/dirac/certs/hostcert.pem -o /DIRAC/Security/KeyFile=/home/dirac/certs/hostkey.pem "${DEBUG}"; then
     echo 'ERROR: dirac-cfg-update failed' >&2
     exit 1
   fi