diff --git a/cmake/sysbuild/b0_mcuboot_signing.cmake b/cmake/sysbuild/b0_mcuboot_signing.cmake
index 3ff9fbd98fe0..a404d3a2a335 100644
--- a/cmake/sysbuild/b0_mcuboot_signing.cmake
+++ b/cmake/sysbuild/b0_mcuboot_signing.cmake
@@ -138,7 +138,7 @@ if(SB_CONFIG_BOOTLOADER_MCUBOOT)
 
     if(SB_CONFIG_SECURE_BOOT_BUILD_S1_VARIANT_IMAGE)
       ncs_secure_boot_mcuboot_sign(s1_image "${bin_files}" "${signed_targets}" "")
-      set(extra_bin_data "signed_by_mcuboot_and_b0_s1_image.binload_address=$<TARGET_PROPERTY:partition_manager,PM_S1_ADDRESS>")
+      set(extra_bin_data "signed_by_mcuboot_and_b0_s1_image.binload_address=$<TARGET_PROPERTY:partition_manager,PM_S1_ADDRESS>;signed_by_mcuboot_and_b0_s1_image.binslot=1")
     endif()
 
     if(bin_files)
@@ -156,6 +156,7 @@ if(SB_CONFIG_BOOTLOADER_MCUBOOT)
         ${extra_bin_data}
         "version_MCUBOOT=${SB_CONFIG_SECURE_BOOT_MCUBOOT_VERSION}"
         "version_B0=${mcuboot_fw_info_firmware_version}"
+        "signed_by_mcuboot_and_b0_mcuboot.binslot=0"
         DEPENDS ${signed_targets}
         )
     endif()
diff --git a/subsys/CMakeLists.txt b/subsys/CMakeLists.txt
index 58a0d7e83d62..be969e651565 100644
--- a/subsys/CMakeLists.txt
+++ b/subsys/CMakeLists.txt
@@ -67,3 +67,4 @@ add_subdirectory(suit)
 add_subdirectory_ifdef(CONFIG_MGMT_SUITFU mgmt/suitfu)
 add_subdirectory_ifdef(CONFIG_DULT dult)
 add_subdirectory_ifdef(CONFIG_NRF_COMPRESS nrf_compress)
+add_subdirectory(mgmt/mcumgr)
diff --git a/subsys/Kconfig b/subsys/Kconfig
index 37be60487f97..05bda2f953c8 100644
--- a/subsys/Kconfig
+++ b/subsys/Kconfig
@@ -28,6 +28,7 @@ rsource "nrf_rpc/Kconfig"
 rsource "zigbee/Kconfig"
 rsource "mgmt/fmfu/Kconfig"
 rsource "mgmt/suitfu/Kconfig"
+rsource "mgmt/mcumgr/Kconfig"
 rsource "caf/Kconfig"
 rsource "ieee802154/Kconfig"
 rsource "dm/Kconfig"
diff --git a/subsys/mgmt/mcumgr/CMakeLists.txt b/subsys/mgmt/mcumgr/CMakeLists.txt
new file mode 100644
index 000000000000..88b201618140
--- /dev/null
+++ b/subsys/mgmt/mcumgr/CMakeLists.txt
@@ -0,0 +1,7 @@
+#
+# Copyright (c) 2024 Nordic Semiconductor
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+
+add_subdirectory(grp)
diff --git a/subsys/mgmt/mcumgr/Kconfig b/subsys/mgmt/mcumgr/Kconfig
new file mode 100644
index 000000000000..f5f49074cda4
--- /dev/null
+++ b/subsys/mgmt/mcumgr/Kconfig
@@ -0,0 +1,11 @@
+#
+# Copyright (c) 2024 Nordic Semiconductor
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+
+menu "Additional MCUmgr configuration"
+
+rsource "grp/Kconfig"
+
+endmenu
diff --git a/subsys/mgmt/mcumgr/grp/CMakeLists.txt b/subsys/mgmt/mcumgr/grp/CMakeLists.txt
new file mode 100644
index 000000000000..eb102c86b017
--- /dev/null
+++ b/subsys/mgmt/mcumgr/grp/CMakeLists.txt
@@ -0,0 +1,7 @@
+#
+# Copyright (c) 2024 Nordic Semiconductor
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+
+add_subdirectory_ifdef(CONFIG_MCUMGR_GRP_OS os_mgmt)
diff --git a/subsys/mgmt/mcumgr/grp/Kconfig b/subsys/mgmt/mcumgr/grp/Kconfig
new file mode 100644
index 000000000000..d2eed051f4b5
--- /dev/null
+++ b/subsys/mgmt/mcumgr/grp/Kconfig
@@ -0,0 +1,11 @@
+#
+# Copyright (c) 2024 Nordic Semiconductor
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+
+menu "Additional MCUmgr group configuration"
+
+rsource "os_mgmt/Kconfig"
+
+endmenu
diff --git a/subsys/mgmt/mcumgr/grp/os_mgmt/CMakeLists.txt b/subsys/mgmt/mcumgr/grp/os_mgmt/CMakeLists.txt
new file mode 100644
index 000000000000..81ea1db57a66
--- /dev/null
+++ b/subsys/mgmt/mcumgr/grp/os_mgmt/CMakeLists.txt
@@ -0,0 +1,10 @@
+#
+# Copyright (c) 2024 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+
+if(CONFIG_MCUMGR_GRP_OS_BOOTLOADER_INFO_B0_ACTIVE_SLOT)
+  zephyr_library_amend()
+  zephyr_library_sources(src/os_mgmt_b0_active_slot.c)
+endif()
diff --git a/subsys/mgmt/mcumgr/grp/os_mgmt/Kconfig b/subsys/mgmt/mcumgr/grp/os_mgmt/Kconfig
new file mode 100644
index 000000000000..94ecd3970b9c
--- /dev/null
+++ b/subsys/mgmt/mcumgr/grp/os_mgmt/Kconfig
@@ -0,0 +1,22 @@
+#
+# Copyright (c) 2024 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+
+menu "Additional MCUmgr OS group management functionality"
+
+config MCUMGR_GRP_OS_BOOTLOADER_INFO_B0_ACTIVE_SLOT
+	bool "Bootloader info query for active b0 slot"
+	depends on MCUMGR_GRP_OS_BOOTLOADER_INFO
+	depends on BOOTLOADER_MCUBOOT
+	depends on MCUBOOT_MCUBOOT_IMAGE_NUMBER != -1
+	depends on FW_INFO
+	depends on FW_INFO_API
+	depends on MCUMGR_MGMT_NOTIFICATION_HOOKS
+	depends on MCUMGR_GRP_OS_BOOTLOADER_INFO_HOOK
+	help
+	  Enables a bootloader info command for `active_b0_slot` which will return the active b0
+	  image slot number, and can be used to determine which update image should be loaded.
+
+endmenu
diff --git a/subsys/mgmt/mcumgr/grp/os_mgmt/src/os_mgmt_b0_active_slot.c b/subsys/mgmt/mcumgr/grp/os_mgmt/src/os_mgmt_b0_active_slot.c
new file mode 100644
index 000000000000..2ce8cc55b670
--- /dev/null
+++ b/subsys/mgmt/mcumgr/grp/os_mgmt/src/os_mgmt_b0_active_slot.c
@@ -0,0 +1,70 @@
+/*
+ * Copyright (c) 2024 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+ */
+
+#include <zcbor_common.h>
+#include <zcbor_encode.h>
+#include <pm_config.h>
+#include <fw_info.h>
+#include <zephyr/mgmt/mcumgr/mgmt/callbacks.h>
+#include <zephyr/mgmt/mcumgr/grp/os_mgmt/os_mgmt.h>
+
+static enum mgmt_cb_return bootloader_info_hook(uint32_t event, enum mgmt_cb_return prev_status,
+						int32_t *rc, uint16_t *group, bool *abort_more,
+						void *data, size_t data_size)
+{
+	struct os_mgmt_bootloader_info_data *bootloader_info_data =
+						(struct os_mgmt_bootloader_info_data *)data;
+
+	if (event != MGMT_EVT_OP_OS_MGMT_BOOTLOADER_INFO || data_size !=
+	    sizeof(*bootloader_info_data)) {
+		*rc = MGMT_ERR_EUNKNOWN;
+		return MGMT_CB_ERROR_RC;
+	}
+
+	if (*(bootloader_info_data->decoded) >= 1 && (sizeof("active_b0_slot") - 1) ==
+	    bootloader_info_data->query->len && memcmp("active_b0_slot",
+						       bootloader_info_data->query->value,
+						       bootloader_info_data->query->len) == 0) {
+		const struct fw_info *s0_info = fw_info_find(PM_S0_ADDRESS);
+		const struct fw_info *s1_info = fw_info_find(PM_S1_ADDRESS);
+
+		if (s0_info || s1_info) {
+			uint32_t active_slot;
+			bool ok;
+
+			if (!s1_info || (s0_info && s0_info->version >= s1_info->version)) {
+				active_slot = 0;
+			} else if (!s0_info || (s1_info && s1_info->version > s0_info->version)) {
+				active_slot = 1;
+			}
+
+			ok = zcbor_tstr_put_lit(bootloader_info_data->zse, "active") &&
+			     zcbor_uint32_put(bootloader_info_data->zse, active_slot);
+			*rc = (ok ? MGMT_ERR_EOK : MGMT_ERR_EMSGSIZE);
+			return MGMT_CB_ERROR_RC;
+		}
+
+		/* Return response not valid error when active slot cannot be determined */
+		*group = MGMT_GROUP_ID_OS;
+		*rc = OS_MGMT_ERR_QUERY_RESPONSE_VALUE_NOT_VALID;
+		return MGMT_CB_ERROR_ERR;
+	}
+
+	return MGMT_CB_OK;
+}
+
+static struct mgmt_callback cmd_bootloader_info_cb = {
+	.callback = bootloader_info_hook,
+	.event_id = MGMT_EVT_OP_OS_MGMT_BOOTLOADER_INFO,
+};
+
+static int os_mgmt_register_bootloader_info_hook_b0_active_slot(void)
+{
+	mgmt_callback_register(&cmd_bootloader_info_cb);
+	return 0;
+}
+
+SYS_INIT(os_mgmt_register_bootloader_info_hook_b0_active_slot, APPLICATION, 0);
diff --git a/sysbuild/CMakeLists.txt b/sysbuild/CMakeLists.txt
index f6c5edf6c8ea..7dbe1ba7bfbd 100644
--- a/sysbuild/CMakeLists.txt
+++ b/sysbuild/CMakeLists.txt
@@ -394,6 +394,7 @@ function(${SYSBUILD_CURRENT_MODULE_NAME}_pre_cmake)
       set_property(TARGET ${DEFAULT_IMAGE} APPEND_STRING PROPERTY CONFIG "CONFIG_MCUBOOT_NETWORK_CORE_IMAGE_NUMBER=${SB_CONFIG_MCUBOOT_NETWORK_CORE_IMAGE_NUMBER}\n")
       set_property(TARGET ${DEFAULT_IMAGE} APPEND_STRING PROPERTY CONFIG "CONFIG_MCUBOOT_WIFI_PATCHES_IMAGE_NUMBER=${SB_CONFIG_MCUBOOT_WIFI_PATCHES_IMAGE_NUMBER}\n")
       set_property(TARGET ${DEFAULT_IMAGE} APPEND_STRING PROPERTY CONFIG "CONFIG_MCUBOOT_QSPI_XIP_IMAGE_NUMBER=${SB_CONFIG_MCUBOOT_QSPI_XIP_IMAGE_NUMBER}\n")
+      set_property(TARGET ${DEFAULT_IMAGE} APPEND_STRING PROPERTY CONFIG "CONFIG_MCUBOOT_MCUBOOT_IMAGE_NUMBER=${SB_CONFIG_MCUBOOT_MCUBOOT_IMAGE_NUMBER}\n")
     endif()
 
     if(SB_CONFIG_MCUBOOT_HARDWARE_DOWNGRADE_PREVENTION)
diff --git a/west.yml b/west.yml
index 06ca7ab69135..be098750ae6a 100644
--- a/west.yml
+++ b/west.yml
@@ -69,7 +69,7 @@ manifest:
     # https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/guides/modules.html
     - name: zephyr
       repo-path: sdk-zephyr
-      revision: 76a46cb2baf310a06bbdb0b1d7d99394ec04a671
+      revision: 763e6a8ab82bd1a346a9b14a4b8fc7509c8441b6
       import:
         # In addition to the zephyr repository itself, NCS also
         # imports the contents of zephyr/west.yml at the above