This release includes:

• Added support of:
  • NUCLEO-L496ZG
  • NUCLEO-L496ZG-P
  • STM32F0308Discovery (thanks @amassou2017)
• Enable USART2 TX in the DISCO_L475VG_IOT
• HAL Drivers and CMSIS updated:
  • STM32F1xx HAL Drivers to v1.1.2
  • STM32F3xx HAL Drivers to v1.5.1
  • STM32L4xx HAL Drivers to v1.8.3
  • STM32L4xx CMSIS to v1.4.3
• Add RTC driver required for STM32RTC
• Add low power driver required for STM32LowPower
• Allow VECT_TAB_OFFSET to be redefined
• Review Serial menu, 3 options:
  • Enabled with generic Serial: default, define HAL_UART_MODULE_ENABLED
    and instantiate Serial using SERIAL_UART_INSTANCE and PIN_SERIAL_RX/PIN_SERIAL_Tx
  • Enabled without generic Serial: define HAL_UART_MODULE_ENABLED
  • Disabled (No Serial): HAL_UART_MODULE_ENABLED not defined
    Allow to build without HAL_UART_MODULE_ENABLED (save memory)
    Now, HAL_UART_MODULE_ENABLED should not be defined in stm32yyxx_hal_conf.h
• Add LPUART1 management
• Several clean and other fixes ...

Several components libraries are available on stm32duino organization.
They are also available through the Arduino library manager. Search for STM32duino ;)

known issues

• I2C: Several issue raised around I2C and related to IT mode implementation, see #217
• [STLink] Failed to flash Nucleo L496ZG(-P) under Linux and Mac, see stm32duino/Arduino_Tools#23
• Since e02bc35, some serial was not functional. Ex for Nucleo-L432KC, the AF of USART2 (used for STLink VCP)
  are not the same. See #312