# Changelog for FTDI UART-USB converters driver All notable changes to this component will be documented in this file. The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/), and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html). ## [2.1.1] - 2026-05-27 ### Fixed - Correct divisor selection in 1 MBaud to 2 MBaud range (https://github.com/espressif/esp-usb/pull/488) ## [2.1.0] - 2026-01-26 ### Added - Added CTS state to `CDC_ACM_HOST_SERIAL_STATE` event (https://github.com/espressif/esp-usb/issues/360) - Added PID autodetection - Added C API ### Fixed - Fixed FTDI VCP SerialState parsing (correct 1-bit flags, avoid short-packet reads) - Fixed data receiving with configured RX FIFO greater than IN endpoint's MPS ## [2.0.0] - 2023-03-15 ### Changed - Update to [CDC-ACM driver](https://components.espressif.com/components/espressif/usb_host_cdc_acm) to v2 ## [1.0.1] - 2023-02-07 ### Fixed - Fix GCC-12 compile errors ## [1.0.0] - 2022-11-30 - Initial version