Hereafter the list of all new variants requested and their linked issue.
Feel free to file an new issue then it will be added to this list.

Board support requested:

Discovery

• STM32F429IDISCOVERY (STM32F429IDISCOVERY #2026)
• STM32F469iDiscovery ([New Variant]STM32F469iDiscovery #571)
• STM32H750B-DK Discovery Kit ([New Variant] request list #722 (comment))
• STM32H735G-DK Discovery Kit ([New Variant] request list #722 (comment))
• STM32H745I-DISCO Discovery Kit ([New Variant] request list #722 (comment))
• STM32L4R9I-DISCO

Nucleo

• NUCLEO-F413ZH (NUCLEO-F413ZH #1262)
• NUCLEO-G491RE ([New Variant] request list #722 (comment))
• NUCLEO-H745ZI-Q ([New Variant] request list #722 (comment)) and (STM32 Nucleo-H745ZI-Q STM32H745ZIT6 #2090)
• NUCLEO-H755ZI-Q ([New Variant] request list #722 (comment)) and (Support for H755ZI #2147)
• Nucleo-L011K4 (L011K4 #843)
• Nucleo-U545RE-Q Add support for Nucleo U545RE-Q #2494

Generic / Custom

• STM32C071Fx (STM32C0Fx Support #2964)
• STM32F030CC ([New Variant] request list #722 (comment)) , (Is the STM32F030CCT6 chip supported?  #2337) and (Add support for STM32F030CCTx #2959)
• STM32F030RC chip ([New Variant] Add support for STM32F030RC chip #1356)
• STM32F051R8T (Update boards.txt for stm32f0discovery (MB1034B) #1913)
• Demo F070F6 ([STM32F070] #1146) variant of F070F4
• STM32F105RCT6 (Support STM32F105RCT6  #1925)
• Can Filter with STM32F105RBT6 ([New Variant] Can Filter with STM32F105RBT6 #869)
• HY-ministm32v ([New Variant] request list #722 (comment))
• Open107V from Waveshare [New Variant] Open107V from Waveshare #815
• Pyboard ([New Variant]Pyboard #906)
• Stm32f373_BluePill (Second SPI not working for LCD ST7920 or SPI Flash W25Q128 using with STM32F103C8T6 (Blue Pill) or STM32F401CCU (Black Pill) #1085)
• BLACK_F407VE_Mini ([New Variant]BLACK_F407VE_Mini #1083)
• STM32F407ZGT6 Mini ([New variant] STM32F407ZGT6 Mini & STM32F103ZET6 Mini #635)
• BlackPill 411CE 8MHz ([Variant Request] BlackPill 411CE variants #3030)
• STM32F437VGT6 (STM32F437VGT6 #1535)
• STM32F722, STM32F745, STM32F765 ([New Variant] request list #722 (comment))
• STM32G0B0KET6 (STM32G0B0KET6 #2656)
• STM32H503CB WeAct ([New Variant] WeAct STM32H503 Core Board #2736)
• STM32H523CE WeAct ([New Variant] request list #722 (comment))
• STM32H563VI (Support for STM32H563VI #2089)
• WeActStudio.STM32H7R3Zx CoreBoard (Add support WeActStudio.STM32H7R3Zx CoreBoard #2865)
• Portenta (STM32H747XI or Portenta H7 #1984) and other Arduino STM32 based boards (Support for the new Arduino boards #2168)
• Arduino Uno Q ([New Variant] Arduino Uno Q #2988)
• STM32L052K8Ux (Missing entry for STM32L052K8Ux in boards.txt #2759)
• STM32L071 (Support STM32L071 MCU #1229, [New Variant] - L071 #1879)
• STM32L100RB (Add support for STM32L100RB #989)
• STM32L151RCT6 (STM32L151RCT6 #1608)
• STM32L496VGT (Support for the STM32L496VGTx series #2021)
• STM32L4R9AI
• STM32L4P5AGIxP (Generic L4P5AGIxP #1905)
• WeAct Studio STM32U585CIU6 see [New Variant] request list #722 (comment)
• STM32U585CI ([New Variant] Support STM32U585CI #1977)
• STM32WL5MOCH (variants/STM32WLxx/WL5MOCH missing from boards.txt #2539)

3D printer:

• BIGTREETECH BTT SKR PRO V1.2 ([New Variant] STM32F407ZGT6 - BIGTREETECH BTT SKR PRO V1.2 #1284)

LoRa:

• Heltec LoRa Node L151 ([New Variant][on way] Heltec LoRa Node L151 #983) initial support at https://github.com/fthiebolt/LoRa-boards-stm32duino
• RAK811 Wis DUO (STM32L(RAK811 chip) RAK811 Wis DUO #1395)
• RAK3172: (RAK3172 "WLE5CCU6" STM32LoRaWAN#7)
  • RAK3172-Evaluation-Board
    • RAK3172-SiP
• STM32F103C8T6 with DX- LR30 or DX-LR20 ([New Variant] STM32F103C8T6 with DX-LR30 or DX-LR20 #2777)

• 3D printer board support (3D printer board support #347)
• STM32G0316-DISCO
• 32F413HDISCOVERY ([New Variant] request list #722 (comment))
• STM32H747I-DISCO board (Support for STM32H747I-DISCO board #1106 and [New Variant] request list #722 (comment))
• STM32MP1 boards support Support added thanks @kbumsik in [New variant] STM32MP157_DK  #717
• Nucleo-F031K6 ([New Variant] request list #722 (comment))
• NUCLEO-F042K6 ([New Variant] Nucleo 32 - STM32F042K6 #1099)
• (Nucleo-F439ZI](https://www.st.com/en/evaluation-tools/nucleo-f439zi.html) Nucleo-F439ZI support #2324. Done thanks Initial support for Nucleo-F439ZI #2347.
• Nucleo-F446ZE Would it be possible to provide support for the Nucleo F446ZE card? #1970. Done thanks Add variant: add support for generic F446Z(C-E)(H-J-T) and Nucleo-F446ZE #2108.
• Nucleo-F746ZG (NUCLEO-F746ZG #715)
• Nucleo G031k8 (STM32G031K8T6 #855)
• Nucleo-G070RB ([New Variant] add support for Nucleo64 STM32G070 #1147 Nucleo-G070RB #1651)
• STM32G474CEU6 (STM32G474CEU6 for WeAct Boards #2605) --> done variant(g4): Add WeActStudio.STM32G474CoreBoard support #2615
• Nucleo-L010RB (STM32L010rb support #662)
• NUCLEO-L552ZE-Q Requested here
• Nucleo 144 F722ZE (Nucleo 144 F722ZE #1259)
• NUCLEO-H743ZI ([New Variant] request list #722 (comment))
• NUCLEO-H753ZI ([New Variant] request list #722 (comment)) --> Done thanks Support for NUCLEO-H753ZI board #2130
• NUCLEO-H723ZG ([New Variant] request list #722 (comment))
• NUCLEO-H503RB ([New Variant] request list #722 (comment)) Fixed by variant(H5): add generic H503RB and Nucelo H503RB #2117
• BlackPill STM32F411CEU6
• BlackPill F401CE [New Variant] Please add BlackPill F401CE #1143
• STM32F103Vx (please support f103v #958)
• STM32F103ZET6 Mini ([New variant] STM32F407ZGT6 Mini & STM32F103ZET6 Mini #635)
• MCUDev DevEBox STM32H7XX_M board (STM32H750VBT6) (Support for MCUDev DevEBox STM32H7XX_M board (STM32H750VBT6) #1145, [New Variant] Generic STM32H743VIT6 #1172, [New Variant] STM32H743VIT6 (and STM32H750VBT6) #1266)
• Leafony STM32 (Leafony STM32  #1887) --> done thanks variants: add Leafony AP03 #1889
• STM32F412ZG (Stm32f412zg support #1899)
• STM32H750XB (STM32H750XB #1982)
• STM32F446ZE (Pls add STM32F446ZE to supported controllers. #2074). Done thanks Add variant: add support for generic F446Z(C-E)(H-J-T) and Nucleo-F446ZE #2108.
• STM32C011J6 (STM32C011J6M6 #2210 and [New Variant] request list #722 (comment)) --> Done Adding support for stm32c011j4m6 #2359
• STM32F030K6 ([New Variant] STM32F030K6 #1357) --> done Added F0 boards #1792
• RAK3172-Module --> done thanks Add RAK3172 module #2005
• RAK3271T ([New Variant] Support for RAK3271T #2162) --> done thanks Added RAK3172T Variant #2431
• STM32C071Rx (Add support for STM32C071Rx #2536) --> done feat: Generic variant C071RBTx support #2556
• NUCLEO-C071RB ([New Variant] NUCLEO-C071RB #2537) --> Done feat: Add variant NUCLEO-C071RB #2558
• NUCLEO-H7A3ZI-Q ([New Variant] request list #722 (comment), NUCLEO-U575ZI-Q memory size incorrect in Arduino IDE showing 256 kbytes should be 786 kbytes #1827 (comment) and [New Variant] Nucleo STM32H7A3ZITxQ #2632)
• STM32F407IGH ([New Variant] STM32F407IGH #2589) --> done thanks add support for stm32F407IGHx #2649
• STM32F407IGT6 ([New Variant] does this lib support STM32F407IGT6? #2131)--> done thanks add support for stm32F407IGHx #2649
• NUCLEO L412RB-P (Add board NUCLEO L412RB-P #1350 and [New Variant] NUCLEO-L412RB-P #2663) --> done thanks Variant addition: Nucleo-64 L412RB_P #2713
• STM32F411VET6 ( [New Variant] #1314) Done thanks variant(f4): add the DISCO_F411VE (STM32F411E-DISCO) board #2805
• Nucleo-F334R8 (https://www.stm32duino.com/viewtopic.php?f=43&t=569) Done thanks variant(f3): add Nucleo-F334R8 support #2843
• STM32H723VGT6 WeAct Studio ([New Variant] STM32H723VGT6 WeAct Studio #2606) Done thanks Add WeActMini STM32H723VGT6 Variant #2851