diff --git a/platform/mellanox/fw.mk b/platform/mellanox/fw.mk
index 82e5dbfc898a..1c54fec1251b 100644
--- a/platform/mellanox/fw.mk
+++ b/platform/mellanox/fw.mk
@@ -21,33 +21,33 @@ MLNX_FW_BASE_PATH = $(MLNX_SDK_BASE_PATH)
 # Place an URL here to FW if you want to download FW instead
 MLNX_FW_BASE_URL =
 
-SIMX_VERSION = 23.7-1086
+SIMX_VERSION = 24.1-1007
 
 FW_FROM_URL = y
 
-MLNX_FW_ASSETS_RELEASE_TAG = fw-2012.1062
+MLNX_FW_ASSETS_RELEASE_TAG = fw-2012.2104
 MLNX_FW_ASSETS_URL = $(MLNX_ASSETS_GITHUB_URL)/releases/download/$(MLNX_FW_ASSETS_RELEASE_TAG)
 
 ifeq ($(MLNX_FW_BASE_URL), )
 MLNX_FW_BASE_URL = $(MLNX_FW_ASSETS_URL)
 endif
 
-MLNX_SPC_FW_VERSION = 13.2012.1062
+MLNX_SPC_FW_VERSION = 13.2012.2104
 MLNX_SPC_FW_FILE = fw-SPC-rel-$(subst .,_,$(MLNX_SPC_FW_VERSION))-EVB.mfa
 $(MLNX_SPC_FW_FILE)_PATH = $(MLNX_FW_BASE_PATH)
 $(MLNX_SPC_FW_FILE)_URL = $(MLNX_FW_BASE_URL)/$(MLNX_SPC_FW_FILE)
 
-MLNX_SPC2_FW_VERSION = 29.2012.1062
+MLNX_SPC2_FW_VERSION = 29.2012.2104
 MLNX_SPC2_FW_FILE = fw-SPC2-rel-$(subst .,_,$(MLNX_SPC2_FW_VERSION))-EVB.mfa
 $(MLNX_SPC2_FW_FILE)_PATH = $(MLNX_FW_BASE_PATH)
 $(MLNX_SPC2_FW_FILE)_URL = $(MLNX_FW_BASE_URL)/$(MLNX_SPC2_FW_FILE)
 
-MLNX_SPC3_FW_VERSION = 30.2012.1062
+MLNX_SPC3_FW_VERSION = 30.2012.2104
 MLNX_SPC3_FW_FILE = fw-SPC3-rel-$(subst .,_,$(MLNX_SPC3_FW_VERSION))-EVB.mfa
 $(MLNX_SPC3_FW_FILE)_PATH = $(MLNX_FW_BASE_PATH)
 $(MLNX_SPC3_FW_FILE)_URL = $(MLNX_FW_BASE_URL)/$(MLNX_SPC3_FW_FILE)
 
-MLNX_SPC4_FW_VERSION = 34.2012.1062
+MLNX_SPC4_FW_VERSION = 34.2012.2104
 MLNX_SPC4_FW_FILE = fw-SPC4-rel-$(subst .,_,$(MLNX_SPC4_FW_VERSION))-EVB.mfa
 $(MLNX_SPC4_FW_FILE)_PATH = $(MLNX_FW_BASE_PATH)
 $(MLNX_SPC4_FW_FILE)_URL = $(MLNX_FW_BASE_URL)/$(MLNX_SPC4_FW_FILE)
diff --git a/platform/mellanox/integration-scripts/sdk_kernel_patches.py b/platform/mellanox/integration-scripts/sdk_kernel_patches.py
index 93459742f0c5..93d02a9d3cd3 100755
--- a/platform/mellanox/integration-scripts/sdk_kernel_patches.py
+++ b/platform/mellanox/integration-scripts/sdk_kernel_patches.py
@@ -82,7 +82,7 @@ def get_kernel_dir(self):
         major_kernel_path = os.path.join(KERNEL_BACKPORTS, "{}.{}".format(kernel, major))
 
         # if the k_dir with actual minor doesn't exit, use the closest minor version
-        for minor_i in range(minor_int, 0, -1):
+        for minor_i in range(minor_int, -1, -1):
             path = os.path.join(major_kernel_path, "{}.{}.{}".format(kernel, major, minor_i))
             if os.path.exists(os.path.join(self.args.patches, path)):
                 minor = str(minor_i)
@@ -137,6 +137,18 @@ def get_new_patches(self):
         Data.new_patches = FileHandler.read_dir(patches_path, "*.patch")
         Data.new_patches.sort()
 
+    def cleanup_old_patches(self):
+        patches_del = copy.deepcopy(Data.old_patches)
+        for patch in Data.new_patches:
+            if patch in Data.old_patches:
+                patches_del.remove(patch)
+        print(f" -> Patches to be removed are : {patches_del}")
+        for patch in patches_del:
+            file_n = os.path.join(self.args.build_root, os.path.join(SLK_PATCH_LOC, patch))
+            if os.path.exists(file_n):
+                print(f"{file_n} is deleted")
+                os.remove(file_n)
+
     def refresh_markers(self):
         print("-> INFO Refreshing Markers ")
         (Data.i_sdk_start, Data.i_sdk_end) = FileHandler.find_marker_indices(Data.old_series, SDK_MARKER)
@@ -187,6 +199,7 @@ def perform(self):
         self.refresh_markers()
         self.add_new_patch_series()
         self.process_update()
+        self.cleanup_old_patches()
         patch_table = self.fetch_patch_table(os.path.join(self.args.patches, Data.k_dir))
         slk_msg = self.create_commit_msg(patch_table)
         if self.args.slk_msg:
diff --git a/platform/mellanox/mlnx-sai.mk b/platform/mellanox/mlnx-sai.mk
index 63ee673d9a6e..733be9d9276c 100644
--- a/platform/mellanox/mlnx-sai.mk
+++ b/platform/mellanox/mlnx-sai.mk
@@ -1,6 +1,6 @@
 # Mellanox SAI
 
-MLNX_SAI_VERSION = SAIBuild2211.25.1.4
+MLNX_SAI_VERSION = SAIBuild2311.25.0.36
 MLNX_SAI_ASSETS_GITHUB_URL = https://github.com/Mellanox/Spectrum-SDK-Drivers-SONiC-Bins
 MLNX_SAI_ASSETS_RELEASE_TAG = sai-$(MLNX_SAI_VERSION)-$(BLDENV)-$(CONFIGURED_ARCH)
 MLNX_SAI_ASSETS_URL = $(MLNX_SAI_ASSETS_GITHUB_URL)/releases/download/$(MLNX_SAI_ASSETS_RELEASE_TAG)
diff --git a/platform/mellanox/sdk.mk b/platform/mellanox/sdk.mk
index 096432b3efb9..b573dfb29d75 100644
--- a/platform/mellanox/sdk.mk
+++ b/platform/mellanox/sdk.mk
@@ -14,7 +14,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
-MLNX_SDK_VERSION = 4.6.1062
+MLNX_SDK_VERSION = 4.6.2104
 MLNX_SDK_ISSU_VERSION = 101
 
 MLNX_SDK_DRIVERS_GITHUB_URL = https://github.com/Mellanox/Spectrum-SDK-Drivers