Release 2.3.0 - Raspberri Pi Pico W WiFi Support

• Add Pico W WiFi support (#670)
• Fix ::printf/etc. due to mutex size conflict (#677)
• Add delay to 2nd core start for Picoprobe (#676)
• Add support for new SD/RTC and SubGHz boards (#663)
• Automatically update the JSON file in makeboards (#664)

Release 2.2.2 - TinyUSB with Platform.IO fixes, SerialUSB minor fix

• Return # of bytes written by SerialUSB::write (#662)
• Add notes on TinyUSB documentation and quirks (#659)
• Make TinyUSB linking work automatically with PIO (#658)
• Update GPIO docs (digital.rst) (#656)

Release 2.2.1 - GPIO IRQ fix, update FreeRTOS, Adafruit TinyUSB

• Update to Adafruit_TinyUSB_Arduino 1.12.0 (#654)
• Update to latest pico-sdk develop branch (#653)
• Actually pass in the PIO key for auto-publishing (#652)
• Update FreeRTOS SMP branch to latest upstream (#649)
• Update to latest pico-sdk, allow lock.c->lock.cpp (#646)

Release 2.2.0 - Multicore, Platform.IO fixes, TinyUSB update

• Major bugfix for multicore standard and FreeRTOS
• Add dependency file generation to build (#644)
• Update to latest Adafruit_TinyUSB (#639)
• Update PlatformIO builder script and docs (#633)
• Add analogReadResolution() docs (#631)
• Updated helper class for Challenger NB board. (#629)
• Add f_cpu 120, 240 mhz option (#628)
• Add Platform.IO publish to release process

Release 2.1.1 - Memory/Flash reduction, C++ exceptions, Platform.IO, bugfixes

• Remove unneeded and invalid file changes, fix Platform.IO packaging error
• Shrink flash and RAM usage even more (#627)
• Temporary fix for muilticore realloc (#625)
• Remove IRQ-level malloc from USB setup
• Disable Wire slave interrupt on ::end (#621)
• Activate default -Os optimization for Platform.IO (#619)
• Hide get.py download percent when not interactive (#618)
• Remove obsolete include paths from build.inc (#616)
• Fix IDE include paths / Intellisense (#615)
• Reduce flash, RAM use, reduce download/install (#613)
• Add GCC stack protector support (#611)
• Try and upload ASAP instead of hard-waiting 10sec (#610)
• Add C++ exception option to menus (#607)
• Fix WizFi360-EVB-Pico pins_arduino.h (#608)

Release 2.1.0 - Memory/Flash reduction, C++ exceptions, Platform.IO, bugfixes

• Shrink flash and RAM usage even more (#627)
• Temporary fix for muilticore realloc (#625)
• Remove IRQ-level malloc from USB setup
• Disable Wire slave interrupt on ::end (#621)
• Activate default -Os optimization for Platform.IO (#619)
• Hide get.py download percent when not interactive (#618)
• Remove obsolete include paths from build.inc (#616)
• Fix IDE include paths / Intellisense (#615)
• Reduce flash, RAM use, reduce download/install (#613)
• Add GCC stack protector support (#611)
• Try and upload ASAP instead of hard-waiting 10sec (#610)
• Add C++ exception option to menus (#607)
• Fix WizFi360-EVB-Pico pins_arduino.h (#608)

Release 2.0.3 - SerialPIO, UART, new WizNet boards, other board fixes

• Fix XIAO RP2040, allow swapping HW units 0/1 (#606)
• New WIZnet boards (#605)
• Fix Wire::available() when ::requestFrom fails (#604)
• Add attachInterruptParam (#602)
• Modify DFRobot Beetle pin_arduinos.h (#597)
• Deallocate resources on SerialPIO::end (#596)
• Updated PID for WiFi/BLE board and other changes (#595)

Release 2.0.2 - SDK 1.3.1, Wire, and Challenger WiFi/BLE update

• Upgrade to Pico-SDK 1.3.1 (#588)
• Add new Challenger RP2040 WiFi/BLE board (#587)
• Fix Wire I2C restart handling (#586)
• Clean up misc obsolete references (#584)

Release 2.0.1 - SoftwareSerial and FreeRTOS updates, I2S input and output support

• Fix picoprobe and pico-debug upload recipes (#577)
• Modify DFRobot pins_arduino.h (#573)
• Fix order of bootsel IRQ/idle calls (#572)
• Rewrite I2S from scratch, add I2S input support (#569)
• Correct Serial1 and Serial2 pinout definitions added (#570)
• Fix compile error when configSUPPORT_STATIC_ALLOCATION is set to 1 (#564) (#566)
• Add invert option to SWSerial (#563)
• Fix SWSerial polarity. (#560)

Release 2.0.0 - FreeRTOS SMP and 133MHz default core speed

Version 2.0.0 adds FreeRTOS SMP support thanks to @hfellner.

Normal applications will still use the default, non-RTOS
setup/loop and setup1/loop1, but for users who need preemptive
multitasking and multiple threads, FreeRTOS SMP can be used with
a simple #include <FreeRTOS.h>

Changes

• Make default CPU speed 133MHz (#557)
• FreeRTOS SMP support (#556, #555, #553, #533)
• Change the RTD theme (#554)
• Update SimpleTone.ino (#552)
• Update docs, increase max analogWriteFreq to 1MHz (#551)
• Add SoftwareSerial wrapper around SerialPIO (#548)
• Add ::overflow() return to SerialUART/SerialPIO (#547)
• Document the Generic RP2040 option (#546)