diff --git a/.github/copilot-instructions.md b/.github/copilot-instructions.md
index e462eae2..09e51db9 100644
--- a/.github/copilot-instructions.md
+++ b/.github/copilot-instructions.md
@@ -63,7 +63,7 @@ These run automatically on PRs to `main`:
 2. **repo-sanity-checks.yaml**: Checks for binary files (must use git LFS), calculates repo size delta
 3. **ds-consistency-check.yaml**: Validates `config/*/samples.yaml` files with:
    ```bash
-   python3 test/checkDatasetConfigConsistency.py --exception config/dataset_exceptions.yaml Run3_2022 Run3_2022EE Run3_2023 Run3_2023BPix Run3_2024
+   python3 test/checkDatasetConfigConsistency.py --exception config/dataset_exceptions.yaml Run3_2022 Run3_2022EE Run3_2023 Run3_2023BPix Run3_2024 Run3_2025
    ```
 4. **trigger-flaf-integration.yaml**: Triggers GitLab integration pipeline via `@cms-flaf-bot test` comments
 
diff --git a/.github/workflows/cross-section-check.yaml b/.github/workflows/cross-section-check.yaml
index 732a7907..9c8e2060 100644
--- a/.github/workflows/cross-section-check.yaml
+++ b/.github/workflows/cross-section-check.yaml
@@ -47,4 +47,4 @@ jobs:
 
       - name: Check cross-sections
         if: ${{ steps.changed_files.outputs.has_changes == 'true' }}
-        run: python3 test/checkCrossSections.py Run3_2022 Run3_2022EE Run3_2023 Run3_2023BPix Run3_2024
+        run: python3 test/checkCrossSections.py Run3_2022 Run3_2022EE Run3_2023 Run3_2023BPix Run3_2024 Run3_2025
diff --git a/.github/workflows/ds-consistency-check.yaml b/.github/workflows/ds-consistency-check.yaml
index 0fed409c..6e2c4fa8 100644
--- a/.github/workflows/ds-consistency-check.yaml
+++ b/.github/workflows/ds-consistency-check.yaml
@@ -45,8 +45,8 @@ jobs:
 
       - name: Check dataset configs consistency
         if: ${{ steps.changed_files.outputs.has_ds_configs == 'true' }}
-        run: python3 test/checkDatasetConfigConsistency.py --exception config/dataset_exceptions.yaml Run3_2022 Run3_2022EE Run3_2023 Run3_2023BPix Run3_2024
+        run: python3 test/checkDatasetConfigConsistency.py --exception config/dataset_exceptions.yaml Run3_2022 Run3_2022EE Run3_2023 Run3_2023BPix Run3_2024 Run3_2025
 
       - name: Check dataset naming
         if: ${{ steps.changed_files.outputs.has_ds_configs == 'true' }}
-        run: python3 test/checkDatasetNaming.py --rules config/dataset_naming_rules.yaml Run3_2022 Run3_2022EE Run3_2023 Run3_2023BPix Run3_2024
+        run: python3 test/checkDatasetNaming.py --rules config/dataset_naming_rules.yaml Run3_2022 Run3_2022EE Run3_2023 Run3_2023BPix Run3_2024 Run3_2025
diff --git a/Analysis/tasks.py b/Analysis/tasks.py
index aff01635..51b3ceef 100644
--- a/Analysis/tasks.py
+++ b/Analysis/tasks.py
@@ -692,7 +692,7 @@ def run(self):
         with contextlib.ExitStack() as stack:
             for inp in self.input():
                 dataset_name = os.path.basename(inp.path)
-                all_datasets.append(dataset_name.strip(".root"))
+                all_datasets.append(dataset_name.split(".")[0])
                 local_inputs.append(stack.enter_context(inp.localize("r")).path)
             dataset_names = ",".join(smpl for smpl in all_datasets)
             all_outputs_merged = []
diff --git a/config/Run3_2025/global.yaml b/config/Run3_2025/global.yaml
new file mode 100644
index 00000000..36e30b2b
--- /dev/null
+++ b/config/Run3_2025/global.yaml
@@ -0,0 +1,14 @@
+era: Run3_2025
+luminosity: 110730.86  # pb-1, https://twiki.cern.ch/twiki/bin/view/CMS/PdmVRun3Analysis#DATA_AN2 brilcalc lumi -b "STABLE BEAMS"  -i Cert_Collisions2025_391658_398903_Golden.json (no normtag available)
+nano_version: v15
+crossSectionsFile: FLAF/config/crossSections13p6TeV.yaml
+MET_flags:  # https://twiki.cern.ch/twiki/bin/view/CMS/MissingETOptionalFiltersRun2#Run_3_2024_data_and_MC_Recommend
+  - Flag_goodVertices
+  - Flag_globalSuperTightHalo2016Filter
+  - Flag_EcalDeadCellTriggerPrimitiveFilter
+  - Flag_BadPFMuonFilter
+  - Flag_BadPFMuonDzFilter
+  - Flag_hfNoisyHitsFilter
+  - Flag_eeBadScFilter
+  - Flag_ecalBadCalibFilter
+lumiFile: Corrections/data/golden_json/Cert_Collisions2025_391658_398903_Golden.json
diff --git a/config/dataset_exceptions.yaml b/config/dataset_exceptions.yaml
index 3b4a2411..224cf891 100644
--- a/config/dataset_exceptions.yaml
+++ b/config/dataset_exceptions.yaml
@@ -1,17 +1,34 @@
+# no MC for 2025:
+# ^(A-Z)*.:
+#   - Run3_2025
 # DY
+^DYto2(E|Mu|Tau)_M_50_[012]J_amcatnloFXFX:
+  - Run3_2025
+^DYto2(E|Mu|Tau)_M_(10to50|50)_amcatnloFXFX:
+  - Run3_2025
+^DYto2(E|Mu|Tau)_MLL_*.:
+  - Run3_2025
+^DYto2L_M_50_PTLL_*.:
+  - Run3_2025
 ^DYto2L_M_(10to50|50)_amcatnloFXFX:
   - Run3_2024
+  - Run3_2025
 ^DYto2L_M_50_[012]J_amcatnloFXFX:
   - Run3_2024
+  - Run3_2025
 ^DYto2(E|Mu)_M_50_PTLL_.*_amcatnloFXFX:
   - Run3_2024
+  - Run3_2025
 ^DYto2.*_M_50_amcatnloFXFX_ext1:
   - Run3_2023
   - Run3_2023BPix
   - Run3_2024
 ^DYto2Tau_M_50_(0|1|2)J_Filtered_amcatnloFXFX:
   - Run3_2024
+  - Run3_2025
 # H
+^GluGluH*.:
+  - Run3_2025
 GluGluHto2B_M125_ext1:
   - Run3_2022
   - Run3_2022EE
@@ -20,7 +37,8 @@ GluGluHto2B_M125_ext1:
 GluGluHto2Tau_M125:
   - Run3_2022EE
   - Run3_2023
-
+^ggZH_.*:
+  - Run3_2025
 ^ggZH_.*_ext1:
   - Run3_2023
   - Run3_2023BPix
@@ -30,6 +48,8 @@ GluGluHto2Tau_M125:
   - Run3_2024
 GluGlutoContinto2Zto2Mu2Tau:
   - Run3_2023
+^VBFH*.:
+  - Run3_2025
 VBFHto2B_M125_ext1:
   - Run3_2022
   - Run3_2022EE
@@ -40,6 +60,8 @@ VBFHto2B_M125_ext1:
   - Run3_2023
   - Run3_2023BPix
   - Run3_2024
+^ZH.*:
+  - Run3_2025
 ^ZH_Hto2B.*_ext1:
   - Run3_2023
   - Run3_2023BPix
@@ -56,8 +78,11 @@ QCD_PT_300_EMEnriched:
   - Run3_2023
   - Run3_2023BPix
   - Run3_2022
-^^QCD_PT_.*:
+^QCD_PT_.*:
   - Run3_2024
+  - Run3_2025
+^QCD_HT.*:
+  - Run3_2025
 # ST
 ^T(bar|)W.*_ext1:
   - Run3_2023
@@ -67,11 +92,13 @@ TT:
   - Run3_2022EE
   - Run3_2023
   - Run3_2024
+  - Run3_2025
 TT_ext1:
   - Run3_2022EE
   - Run3_2023
   - Run3_2023BPix
   - Run3_2024
+  - Run3_2025
 TTto2L2Nu_ext1:
   - Run3_2023
   - Run3_2023BPix
@@ -84,26 +111,41 @@ TTtoLNu2Q_ext1:
   - Run3_2023
   - Run3_2023BPix
   - Run3_2024
-
+^TTto(2L2Nu|LNu2Q|4Q):
+  - Run3_2025
 TTZ_Zto2Q:
   - Run3_2023
   - Run3_2023BPix
+  - Run3_2025
 TTWZ:
   - Run3_2022
+  - Run3_2025
 ^TTZ(Z|H)_Z(Z|H)to4B:
   - Run3_2022
   - Run3_2022EE
   - Run3_2023
   - Run3_2023BPix
+  - Run3_2025
 TTZZ:
   - Run3_2024
+  - Run3_2025
 TTZH:
   - Run3_2024
+  - Run3_2025
+
+^TT(WH|WW):
+  - Run3_2025
+
+^TTHto*:
+  - Run3_2025
+
 # VBF
 VBFHto2Tau_M125:
   - Run3_2022EE
 
 # W
+^W(minus|plus|to)*.:
+  - Run3_2025
 WtoLNu_madgraphMLM_ext1:
   - Run3_2023
   - Run3_2023BPix
@@ -115,6 +157,10 @@ WtoLNu_amcatnloFXFX:
 ^WtoLNu_(0|1)J_amcatnloFXFX:
   - Run3_2024
 # VV
+ZZ:
+  - Run3_2025
+^ZZto*.:
+  - Run3_2025
 ^WW.*_ext1:
   - Run3_2023
   - Run3_2023BPix
@@ -127,7 +173,9 @@ WtoLNu_amcatnloFXFX:
   - Run3_2023
   - Run3_2023BPix
   - Run3_2024
-
+# VVV
+ZZZ:
+  - Run3_2025
 # change name in W samples..
 WtoENu_amcatnloFXFX:
   - Run3_2022
@@ -155,14 +203,27 @@ WtoTauNu_amcatnloFXFX:
   - Run3_2022EE
   - Run3_2023
   - Run3_2023BPix
+  - Run3_2025
+^T(barB|Bbar)toL(minus|plus)Nu(B|Bbar)_s_channel_4FS:
+  - Run3_2025
+^T(barBQ|BbarQ)_t_channel_4FS:
+  - Run3_2025
+
+^T(barWplus|Wminus)to(2L2Nu|4Q|LNu2Q):
+  - Run3_2025
 
 ZHto2Tau_UncorrelatedDecay_UnFiltered:
-  - Run3_2024 # tmp missing
+  - Run3_2024
 ^Zto2Q_HT_(400to600|600to800|800toInf|200to400):
   - Run3_2024
+  - Run3_2025
 
 ^Zto2Q_HT_(100to400|400to800|800to1500|1500to2500|2500toInf):
   - Run3_2022
   - Run3_2022EE
   - Run3_2023
   - Run3_2023BPix
+  - Run3_2025
+
+^Zto2Nu_HT*.:
+  - Run3_2025
diff --git a/include/AnalysisTools.h b/include/AnalysisTools.h
index 61672d98..3a4b49b0 100644
--- a/include/AnalysisTools.h
+++ b/include/AnalysisTools.h
@@ -32,7 +32,8 @@ enum class Period : int {
     Run3_2022EE = 6,
     Run3_2023 = 7,
     Run3_2023BPix = 8,
-    Run3_2024 = 9
+    Run3_2024 = 9,
+    Run3_2025 = 10
 };
 
 enum class SampleType : int {
diff --git a/include/HHbTagScores.h b/include/HHbTagScores.h
index 57a40b61..7386964e 100644
--- a/include/HHbTagScores.h
+++ b/include/HHbTagScores.h
@@ -21,6 +21,8 @@ inline int PeriodToHHbTagInput(int version, Period period) {
         {{1, Period::Run3_2023}, 2018},
         {{1, Period::Run3_2023BPix}, 2018},
         {{1, Period::Run3_2024}, 2018},
+        {{1, Period::Run3_2025}, 2018},
+
         // v2
         {{2, Period::Run2_2016_HIPM}, 2016},
         {{2, Period::Run2_2016}, 2016},
@@ -31,6 +33,8 @@ inline int PeriodToHHbTagInput(int version, Period period) {
         {{2, Period::Run3_2023}, 2018},
         {{2, Period::Run3_2023BPix}, 2018},
         {{2, Period::Run3_2024}, 2018},
+        {{2, Period::Run3_2025}, 2018},
+
         // v3
         {{3, Period::Run2_2016_HIPM}, 0},
         {{3, Period::Run2_2016}, 0},
@@ -41,6 +45,7 @@ inline int PeriodToHHbTagInput(int version, Period period) {
         {{3, Period::Run3_2023}, 2},
         {{3, Period::Run3_2023BPix}, 3},
         {{3, Period::Run3_2024}, 3},
+        {{3, Period::Run3_2025}, 3},
     };
     auto iter = periodHHBtag.find(std::make_pair(version, period));
     if (iter == periodHHBtag.end()) {
diff --git a/run_tools/mk_flaf_env.sh b/run_tools/mk_flaf_env.sh
index 8e4e6713..62c74e2a 100755
--- a/run_tools/mk_flaf_env.sh
+++ b/run_tools/mk_flaf_env.sh
@@ -28,7 +28,7 @@ install() {
     echo "Installing packages in $env_base"
     run_cmd source $env_base/bin/activate
     run_cmd pip install --upgrade pip
-    run_cmd pip install law scinum
+    run_cmd pip install luigi==3.7.3 law scinum
     run_cmd pip install https://github.com/riga/plotlib/archive/refs/heads/master.zip
     run_cmd pip install fastcrc
     run_cmd pip install bayesian-optimization