diff --git a/targets/targets.json b/targets/targets.json
index 3099af931e..0105da9631 100644
--- a/targets/targets.json
+++ b/targets/targets.json
@@ -1648,64 +1648,6 @@
         ],
         "device_name": "STM32F401RE"
     },
-    "DISCO_F401VC": {
-        "inherits": [
-            "MCU_STM32"
-        ],
-        "core": "Cortex-M4F",
-        "default_toolchain": "GCC_ARM",
-        "extra_labels_add": [
-            "STM32F4",
-            "STM32F401xC"
-        ],
-        "macros_add": [
-            "STM32F401xC"
-        ],
-        "supported_toolchains": [
-            "GCC_ARM"
-        ],
-        "device_has_add": [
-            "MPU"
-        ],
-        "device_name": "STM32F401VC"
-    },
-    "STEVAL_3DP001V1": {
-        "inherits": [
-            "MCU_STM32"
-        ],
-        "core": "Cortex-M4F",
-        "extra_labels_add": [
-            "STM32F4",
-            "STM32F401xE"
-        ],
-        "config": {
-            "clock_source": {
-                "help": "Mask value : USE_PLL_HSE_EXTC | USE_PLL_HSE_XTAL | USE_PLL_HSI",
-                "value": "USE_PLL_HSE_XTAL|USE_PLL_HSI",
-                "macro_name": "CLOCK_SOURCE"
-            }
-        },
-        "macros_add": [
-            "STM32F401xE",
-            "HSE_VALUE=25000000"
-        ],
-        "device_has_add": [
-            "SERIAL_ASYNCH",
-            "FLASH",
-            "MPU"
-        ],
-        "device_has_remove": [
-            "LPTICKER"
-        ],
-        "overrides": {
-            "lse_available": 0
-        },
-        "release_versions": [
-            "2",
-            "5"
-        ],
-        "device_name": "STM32F401VE"
-    },
     "ARCH_MAX": {
         "inherits": [
             "MCU_STM32"
@@ -1744,10 +1686,6 @@
                 "macro_name": "CLOCK_SOURCE"
             }
         },
-        "release_versions": [
-            "2",
-            "5"
-        ],
         "device_name": "STM32F407VETx",
         "bootloader_supported": true,
         "overrides": {
@@ -1758,96 +1696,6 @@
             "9011"
         ]
     },
-    "DISCO_F407VG": {
-        "inherits": [
-            "MCU_STM32"
-        ],
-        "core": "Cortex-M4F",
-        "extra_labels_add": [
-            "STM32F4",
-            "STM32F407xG"
-        ],
-        "macros_add": [
-            "STM32F407xx"
-        ],
-        "config": {
-            "clock_source": {
-                "help": "Mask value : USE_PLL_HSE_EXTC (need HW patch) | USE_PLL_HSE_XTAL | USE_PLL_HSI",
-                "value": "USE_PLL_HSE_XTAL|USE_PLL_HSI",
-                "macro_name": "CLOCK_SOURCE"
-            },
-            "usb_speed": {
-                "help": "USE_USB_OTG_FS or USE_USB_OTG_HS or USE_USB_HS_IN_FS",
-                "value": "USE_USB_OTG_FS"
-            }
-        },
-        "overrides": {
-            "lse_available": 0
-        },
-        "device_has_add": [
-            "ANALOGOUT",
-            "TRNG",
-            "FLASH",
-            "MPU"
-        ],
-        "device_has_remove": [
-            "LPTICKER"
-        ],
-        "release_versions": [
-            "2",
-            "5"
-        ],
-        "device_name": "STM32F407VG",
-        "detect_code": [
-            "0830"
-        ]
-    },
-    "NUCLEO_F410RB": {
-        "inherits": [
-            "MCU_STM32"
-        ],
-        "supported_form_factors": [
-            "ARDUINO",
-            "MORPHO"
-        ],
-        "core": "Cortex-M4F",
-        "extra_labels_add": [
-            "STM32F4",
-            "STM32F410xB"
-        ],
-        "macros_add": [
-            "STM32F410Rx"
-        ],
-        "config": {
-            "clock_source": {
-                "help": "Mask value : USE_PLL_HSE_EXTC | USE_PLL_HSE_XTAL (need HW patch) | USE_PLL_HSI",
-                "value": "USE_PLL_HSE_EXTC|USE_PLL_HSI",
-                "macro_name": "CLOCK_SOURCE"
-            },
-            "lpticker_lptim": {
-                "help": "This target supports LPTIM. Set value 1 to use LPTIM for LPTICKER, or 0 to use RTC wakeup timer",
-                "value": 1
-            }
-        },
-        "overrides": {
-            "lpticker_delay_ticks": 4
-        },
-        "detect_code": [
-            "0744"
-        ],
-        "device_has_add": [
-            "ANALOGOUT",
-            "SERIAL_ASYNCH",
-            "TRNG",
-            "FLASH",
-            "MPU"
-        ],
-        "release_versions": [
-            "2",
-            "5"
-        ],
-        "device_name": "STM32F410RB"
-    },
     "NUCLEO_F411RE": {
         "inherits": [
             "MCU_STM32"
@@ -1920,10 +1768,6 @@
             "SERIAL_FC",
             "LPTICKER"
         ],
-        "release_versions": [
-            "2",
-            "5"
-        ],
         "device_name": "STM32F411RE",
         "bootloader_supported": true,
         "detect_code": [
@@ -1949,10 +1793,6 @@
         "device_has_remove": [
             "SERIAL_FC"
         ],
-        "release_versions": [
-            "2",
-            "5"
-        ],
         "bootloader_supported": true,
         "device_name": "STM32F411RE",
         "detect_code": [
@@ -1993,10 +1833,6 @@
             "MPU",
             "USBDEVICE"
         ],
-        "release_versions": [
-            "2",
-            "5"
-        ],
         "device_name": "STM32F412ZG",
         "bootloader_supported": true
     },
@@ -2026,9 +1862,6 @@
             "FLASH",
             "MPU"
         ],
-        "release_versions": [
-            "5"
-        ],
         "device_name": "STM32F412ZG",
         "bootloader_supported": true,
         "config": {
@@ -2098,10 +1931,6 @@
             "SPIF"
         ],
         "bootloader_supported": true,
-        "release_versions": [
-            "2",
-            "5"
-        ],
         "device_name": "STM32F413RHTx",
         "mbed_rom_start": "0x08000000",
         "mbed_rom_size": "0x180000",
@@ -2156,10 +1985,6 @@
             "USBDEVICE"
         ],
         "bootloader_supported": true,
-        "release_versions": [
-            "2",
-            "5"
-        ],
         "device_name": "STM32F413ZH"
     },
     "NUCLEO_F413ZH": {
@@ -2204,10 +2029,6 @@
             "USBDEVICE"
         ],
         "bootloader_supported": true,
-        "release_versions": [
-            "2",
-            "5"
-        ],
         "device_name": "STM32F413ZH"
     },
     "NUCLEO_F429ZI": {
@@ -2258,10 +2079,6 @@
         "detect_code": [
             "0796"
         ],
-        "release_versions": [
-            "2",
-            "5"
-        ],
         "device_name": "STM32F429ZI",
         "bootloader_supported": true,
         "overrides": {
@@ -2305,10 +2122,6 @@
         "device_has_remove": [
             "LPTICKER"
         ],
-        "release_versions": [
-            "2",
-            "5"
-        ],
         "device_name": "STM32F429ZI",
         "bootloader_supported": true,
         "detect_code": [
@@ -2353,9 +2166,6 @@
         "detect_code": [
             "0467"
         ],
-        "release_versions": [
-            "5"
-        ],
         "device_name": "STM32F429ZI",
         "bootloader_supported": true,
         "overrides": {
@@ -2397,10 +2207,6 @@
         "detect_code": [
             "9014"
         ],
-        "release_versions": [
-            "2",
-            "5"
-        ],
         "device_name": "STM32F439VI",
         "bootloader_supported": true,
         "overrides": {
@@ -2442,10 +2248,6 @@
         "detect_code": [
             "9015"
         ],
-        "release_versions": [
-            "2",
-            "5"
-        ],
         "device_name": "STM32F439VI",
         "components_add": [
             "SD"
@@ -2495,10 +2297,6 @@
         "detect_code": [
             "0797"
         ],
-        "release_versions": [
-            "2",
-            "5"
-        ],
         "device_name": "STM32F439ZI",
         "bootloader_supported": true,
         "overrides": {
@@ -2538,45 +2336,9 @@
             "FLASH",
             "MPU"
         ],
-        "release_versions": [
-            "2",
-            "5"
-        ],
         "device_name": "STM32F446RE",
         "bootloader_supported": true
     },
-    "B96B_F446VE": {
-        "inherits": [
-            "MCU_STM32"
-        ],
-        "supported_form_factors": [
-            "ARDUINO",
-            "MORPHO"
-        ],
-        "core": "Cortex-M4F",
-        "extra_labels_add": [
-            "STM32F4",
-            "STM32F446xE"
-        ],
-        "macros_add": [
-            "STM32F446xx"
-        ],
-        "detect_code": [
-            "0840"
-        ],
-        "device_has_add": [
-            "ANALOGOUT",
-            "CAN",
-            "SERIAL_ASYNCH",
-            "FLASH",
-            "MPU"
-        ],
-        "release_versions": [
-            "2",
-            "5"
-        ],
-        "device_name": "STM32F446VE"
-    },
     "NUCLEO_F446ZE": {
         "inherits": [
             "MCU_STM32"
@@ -2615,10 +2377,6 @@
             "MPU",
             "USBDEVICE"
         ],
-        "release_versions": [
-            "2",
-            "5"
-        ],
         "device_name": "STM32F446ZE"
     },
     "DISCO_F469NI": {
@@ -2659,10 +2417,6 @@
             "MPU",
             "USBDEVICE"
         ],
-        "release_versions": [
-            "2",
-            "5"
-        ],
         "device_name": "STM32F469NI",
         "bootloader_supported": true
     },
@@ -2704,9 +2458,6 @@
             "LPTICKER"
         ],
         "device_name": "STM32F469NI",
-        "release_versions": [
-            "5"
-        ],
         "detect_code": [
             "0604"
         ]