diff --git a/platform/mellanox/fw.mk b/platform/mellanox/fw.mk
index 82e5dbfc89..1c54fec125 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 93459742f0..93d02a9d3c 100755
--- a/platform/mellanox/integration-scripts/sdk_kernel_patches.py
+++ b/platform/mellanox/integration-scripts/sdk_kernel_patches.py
@@ -82,7 +82,7 @@ class SDKAction(Action):
         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 @@ class SDKAction(Action):
         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 @@ class SDKAction(Action):
         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 63ee673d9a..733be9d927 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/rules.mk b/platform/mellanox/rules.mk
index 9f4d291ddb..8b4e855026 100644
--- a/platform/mellanox/rules.mk
+++ b/platform/mellanox/rules.mk
@@ -28,7 +28,7 @@ include $(PLATFORM_PATH)/docker-saiserver-mlnx.mk
 include $(PLATFORM_PATH)/one-image.mk
 include $(PLATFORM_PATH)/libsaithrift-dev.mk
 include $(PLATFORM_PATH)/mlnx-ffb.mk
-#include $(PLATFORM_PATH)/issu-version.mk
+include $(PLATFORM_PATH)/issu-version.mk
 include $(PLATFORM_PATH)/mlnx-onie-fw-update.mk
 include $(PLATFORM_PATH)/mlnx-ssd-fw-update.mk
 include $(PLATFORM_PATH)/iproute2.mk
diff --git a/platform/mellanox/sdk.dep b/platform/mellanox/sdk.dep
index 33716d12b6..122548192c 100644
--- a/platform/mellanox/sdk.dep
+++ b/platform/mellanox/sdk.dep
@@ -210,14 +210,13 @@ endif
 
 # SX_KERNEL
 
-# TODO: enable for bookworm
-#SPATH := $($(SX_KERNEL)_SRC_PATH)
-#SLINKS := $(shell find $(SPATH) -type l -exec echo {} \; | grep -Ev ' ')
-#SMDEP_PATHS := $(shell git submodule status --recursive -- $(SPATH) | awk '{print $$2}' | grep -Ev ' ')
-#SMDEP_FILES := $(foreach path,$(SMDEP_PATHS),$(filter-out $(SMDEP_PATHS),$(addprefix $(path)/,$(shell cd $(path) && git ls-files | grep -Ev ' '))))
-#DEP_FILES := $(SONIC_COMMON_FILES_LIST) $(PLATFORM_PATH)/sdk.mk $(PLATFORM_PATH)/sdk.dep
-#DEP_FILES += $(SONIC_COMMON_BASE_FILES_LIST)
-#DEP_FILES += $(filter-out $(SMDEP_PATHS),$(shell git ls-files -- $(SPATH) | grep -Ev ' '))
+SPATH := $($(SX_KERNEL)_SRC_PATH)
+SLINKS := $(shell find $(SPATH) -type l -exec echo {} \; | grep -Ev ' ')
+SMDEP_PATHS := $(shell git submodule status --recursive -- $(SPATH) | awk '{print $$2}' | grep -Ev ' ')
+SMDEP_FILES := $(foreach path,$(SMDEP_PATHS),$(filter-out $(SMDEP_PATHS),$(addprefix $(path)/,$(shell cd $(path) && git ls-files | grep -Ev ' '))))
+DEP_FILES := $(SONIC_COMMON_FILES_LIST) $(PLATFORM_PATH)/sdk.mk $(PLATFORM_PATH)/sdk.dep
+DEP_FILES += $(SONIC_COMMON_BASE_FILES_LIST)
+DEP_FILES += $(filter-out $(SMDEP_PATHS),$(shell git ls-files -- $(SPATH) | grep -Ev ' '))
 
 $(SX_KERNEL)_CACHE_MODE := GIT_CONTENT_SHA
 $(SX_KERNEL)_DEP_FLAGS := $(MLNX_SDK_COMMON_FLAGS_LIST)
diff --git a/platform/mellanox/sdk.mk b/platform/mellanox/sdk.mk
index c3d5752f2a..b573dfb29d 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
@@ -152,12 +152,11 @@ ifeq ($(SDK_FROM_SRC),y)
 $(eval $(call add_derived_package,$(SX_HASH_CALC),$(SX_HASH_CALC_DBGSYM)))
 endif
 
-# TODO: enable for bookworm
-#SX_KERNEL = sx-kernel_1.mlnx.$(MLNX_SDK_DEB_VERSION)_$(CONFIGURED_ARCH).deb
-#$(SX_KERNEL)_DEPENDS += $(LINUX_HEADERS) $(LINUX_HEADERS_COMMON)
-#$(SX_KERNEL)_SRC_PATH = $(PLATFORM_PATH)/sdk-src/sx-kernel
-#SX_KERNEL_DEV = sx-kernel-dev_1.mlnx.$(MLNX_SDK_DEB_VERSION)_$(CONFIGURED_ARCH).deb
-#$(eval $(call add_derived_package,$(SX_KERNEL),$(SX_KERNEL_DEV)))
+SX_KERNEL = sx-kernel_1.mlnx.$(MLNX_SDK_DEB_VERSION)_$(CONFIGURED_ARCH).deb
+$(SX_KERNEL)_DEPENDS += $(LINUX_HEADERS) $(LINUX_HEADERS_COMMON)
+$(SX_KERNEL)_SRC_PATH = $(PLATFORM_PATH)/sdk-src/sx-kernel
+SX_KERNEL_DEV = sx-kernel-dev_1.mlnx.$(MLNX_SDK_DEB_VERSION)_$(CONFIGURED_ARCH).deb
+$(eval $(call add_derived_package,$(SX_KERNEL),$(SX_KERNEL_DEV)))
 
 define make_url
 	$(1)_URL = $(MLNX_SDK_ASSETS_URL)/$(1)