diff --git a/Configuration/PyReleaseValidation/python/relval_2017.py b/Configuration/PyReleaseValidation/python/relval_2017.py
index f4e36910e69fc..9625ac4eb12b8 100644
--- a/Configuration/PyReleaseValidation/python/relval_2017.py
+++ b/Configuration/PyReleaseValidation/python/relval_2017.py
@@ -47,7 +47,7 @@
 #        (TTbar DigiNoHLT)
 #   2023 (TTbar, TTbar PU, TTbar PU premix)
 #        (TTbar trackingMkFit)
-#        (TTbar FastSim)
+#        (TTbar FastSim, TTbar FastSim PU, MinBiasFS for mixing))
 #   2024 (TTbar, TTbar PU, TTbar PU premix)
 numWFIB = [10001.0,10002.0,10003.0,10004.0,10005.0,10006.0,10007.0,10008.0,10009.0,10059.0,10071.0,
            10042.0,10024.0,10025.0,10026.0,10023.0,10224.0,10225.0,10424.0,
@@ -84,7 +84,7 @@
            11634.601,
            12434.0,12634.0,12634.99,
            12434.7,
-           14034.0,
+           14034.0,14234.0,14040.303,
            12834.0,13034.0,13034.99,]
 for numWF in numWFIB:
     if not numWF in _upgrade_workflows: continue
diff --git a/Configuration/PyReleaseValidation/python/relval_steps.py b/Configuration/PyReleaseValidation/python/relval_steps.py
index aa8b0da03c297..4726e687686f9 100644
--- a/Configuration/PyReleaseValidation/python/relval_steps.py
+++ b/Configuration/PyReleaseValidation/python/relval_steps.py
@@ -4011,6 +4011,7 @@ def gen2023HiMix(fragment,howMuch):
 defaultDataSets['2021Design']='CMSSW_12_5_0_pre4-124X_mcRun3_2022_design_v7_design_BS2022-v'
 defaultDataSets['2021FS']='CMSSW_12_4_13-124X_mcRun3_2022_realistic_v12_2021_FastSim-v'
 defaultDataSets['2023']='CMSSW_13_0_10-130X_mcRun3_2023_realistic_withEarly2023BS_v1_2023-v'
+defaultDataSets['2023FS']='CMSSW_13_0_11-130X_mcRun3_2023_realistic_withEarly2023BS_v1_FastSim-v'
 defaultDataSets['2024']='CMSSW_12_5_0_pre4-124X_mcRun3_2024_realistic_v11_BS2022-v'
 defaultDataSets['2026D49']='CMSSW_12_0_0_pre4-113X_mcRun4_realistic_v7_2026D49noPU-v'
 defaultDataSets['2026D76']='CMSSW_12_0_0_pre4-113X_mcRun4_realistic_v7_2026D76noPU-v'
@@ -4042,15 +4043,13 @@ def gen2023HiMix(fragment,howMuch):
     name=baseDataSetReleaseBetter[key]
     if '2017' in ds:
         PUDataSets[ds]={'-n':10,'--pileup':'AVE_35_BX_25ns','--pileup_input':'das:/RelValMinBias_13/%s/GEN-SIM'%(name,)}
-    elif '2018' in ds:
+    elif '2018' in ds or 'postLS2' in ds:
         PUDataSets[ds]={'-n':10,'--pileup':'AVE_50_BX_25ns','--pileup_input':'das:/RelValMinBias_13/%s/GEN-SIM'%(name,)}
-    elif '2021' in ds:
+    elif '2021' in ds or '2023' in ds:
         if 'FS' not in ds:
             PUDataSets[ds]={'-n':10,'--pileup':'Run3_Flat55To75_PoissonOOTPU','--pileup_input':'das:/RelValMinBias_14TeV/%s/GEN-SIM'%(name,)}
         else:
             PUDataSets[ds]={'-n':10,'--pileup':'Run3_Flat55To75_PoissonOOTPU','--pileup_input':'das:/RelValMinBias_14TeV/%s/GEN-SIM-RECO'%(name,)}
-    elif 'postLS2' in ds:
-        PUDataSets[ds]={'-n':10,'--pileup':'AVE_50_BX_25ns','--pileup_input':'das:/RelValMinBias_13/%s/GEN-SIM'%(name,)}
     elif '2026' in ds:
         PUDataSets[ds]={'-n':10,'--pileup':'AVE_200_BX_25ns','--pileup_input':'das:/RelValMinBias_14TeV/%s/GEN-SIM'%(name,)}
     else:
diff --git a/Configuration/PyReleaseValidation/python/upgradeWorkflowComponents.py b/Configuration/PyReleaseValidation/python/upgradeWorkflowComponents.py
index 0f6fe7ba6e608..991201c097d7e 100644
--- a/Configuration/PyReleaseValidation/python/upgradeWorkflowComponents.py
+++ b/Configuration/PyReleaseValidation/python/upgradeWorkflowComponents.py
@@ -2625,7 +2625,7 @@ def condition(self, fragment, stepList, key, hasHarvest):
         'GT' : 'auto:phase1_2023_realistic',
         'HLTmenu': '@relval2023',
         'Era' : 'Run3_FastSim',
-        'BeamSpot': 'Realistic25ns13p6TeVEarly2022Collision',
+        'BeamSpot': 'Realistic25ns13p6TeVEarly2023Collision',
         'ScenToRun' : ['Gen','FastSimRun3','HARVESTFastRun3'],
     },
     '2022HI' : {