6.0.1

• Improved support for the renamed configuration options (issue #4270)
• Fixed an issue when calling the built-in pio device monitor filters
• Fixed an issue when using Interpolation of Values and merging str+int options (issue #4271)

6.0.0

A professional collaborative platform for declarative, safety-critical, and test-driven embedded development.

Please check the Migration guide from 5.x to 6.0.

• Package Management

  • New unified Package Management CLI (pio pkg):

    • pio pkg exec - run command from package tool (issue #4163)
    • pio pkg install - install the project dependencies or custom packages
    • pio pkg list - list installed packages
    • pio pkg outdated - check for project outdated packages
    • pio pkg search - search for packages
    • pio pkg show - show package information
    • pio pkg uninstall - uninstall the project dependencies or custom packages
    • pio pkg update - update the project dependencies or custom packages

  • Package Manifest

    • Added support for "scripts" (issue #485)
    • Added support for multi-licensed packages using SPDX Expressions (issue #4037)
    • Added support for "dependencies" declared in a "tool" package manifest

  • Added support for symbolic links allowing pointing the local source folder to the Package Manager (issue #3348)

  • Automatically install dependencies of the local (private) project libraries (issue #2910)

  • Improved detection of a package type from the tarball archive (issue #3828)

  • Ignore files according to the patterns declared in ".gitignore" when using the pio package pack command (issue #4188)

  • Dropped automatic updates of global libraries and development platforms (issue #4179)

  • Dropped support for the "pythonPackages" field in "platform.json" manifest in favor of Extra Python Dependencies

  • Fixed an issue when manually removed dependencies from the "platformio.ini" configuration file were not uninstalled from the storage (issue #3076)

• Unit Testing

  • Refactored from scratch Unit Testing solution and its documentation
  • New: Test Hierarchy (issue #4135)
  • New: Doctest testing framework (issue #4240)
  • New: GoogleTest testing and mocking framework (issue #3572)
  • New: Semihosting (issue #3516)
  • New: Hardware Simulators for Unit Testing (QEMU, Renode, SimAVR, and custom solutions)
  • New: test build configuration
  • Added support for a custom testing framework
  • Added support for a custom testing command
  • Added support for a custom Unity library (issue #3980)
  • Added support for the socket:// and rfc2217:// protocols using test_port option (issue #4229)
  • List available project tests with a new pio test --list-tests option
  • Pass extra arguments to the testing program with a new pio test --program-arg option (issue #3132)
  • Generate reports in JUnit and JSON formats using the pio test command (issue #2891)
  • Provide more information when the native program crashed on a host (errored with a non-zero return code) (issue #3429)
  • Improved automatic detection of a testing serial port (issue #4076)
  • Fixed an issue when command line parameters (--ignore, --filter) do not override values defined in the "platformio.ini" configuration file (issue #3845)
  • Renamed the "test_build_project_src" project configuration option to the test_build_src
  • Removed the "test_transport" option in favor of the Custom "unity_config.h"

• Static Code Analysis

  • Updated analysis tools:

    • Cppcheck v2.7 with various checker improvements and fixed false positives
    • PVS-Studio v7.18 with improved and updated semantic analysis system

  • Added support for the custom Clang-Tidy configuration file (issue #4186)

  • Added ability to override a tool version using the platform_packages option (issue #3798)

  • Fixed an issue with improper handling of defects that don't specify a source file (issue #4237)

• Build System

  • Show project dependency licenses when building in the verbose mode
  • Fixed an issue when LDF ignores the project lib_deps while resolving library dependencies (issue #3598)
  • Fixed an issue with calling an extra script located outside a project (issue #4220)
  • Fixed an issue when GCC preprocessor was applied to the ".s" assembly files on case-sensitive OS such as Window OS (issue #3917)
  • Fixed an issue when LDF ignores build_src_flags in the "deep+" mode (issue #4253)

• Integration

  • Added a new build variable (COMPILATIONDB_INCLUDE_TOOLCHAIN) to include toolchain paths in the compilation database (issue #3735)
  • Changed a default path for compilation database compile_commands.json to the project root
  • Enhanced integration for Qt Creator (issue #3046)

• Project Configuration

  • Extended Interpolation of Values with ${this} pattern (issue #3953)
  • Embed environment name of the c...

5.2.5

• Improved support for private packages in PlatformIO Registry
• Improved checking of available Internet connection for IPv6-only workstations (pull #4151)
• Better detecting of default PlatformIO project directory on Linux OS (pull #4158)
• Respect disabling debugging server from "platformio.ini" passing an empty value to the debug_server option
• Fixed a "module 'asyncio' has no attribute 'run'" error when launching PIO Home using Python 3.6 (issue #4169)

5.2.4

• Added support for a new headers field in library.json (declare a list of header files that can be included in a project source files using #include <...> directive)
• Improved tab completion support for Bash, ZSH, and Fish shells (issue #4114)
• Improved support for projects located on a network share (issue #3417, issue #3926, issue #4099)
• Improved PIO Remote setup on credit-card sized computers (Raspberry Pi, BeagleBon, etc) (issue #3865)
• Upgraded build engine to the SCons 4.3 (release notes)
• Fixed an issue with the CLion project generator when a macro contains a space (issue #4102)
• Fixed an issue with the NetBeans project generator when the path to PlatformIO contains a space (issue #4096)
• Fixed an issue when the system environment variable does not override a project configuration option (issue #4125)
• Fixed an issue when referencing *_dir option from a custom project configuration environment (issue #4110)
• Fixed an issue with the CLion template that generated a broken CMake file if user's home directory contained an unescaped backslash (issue #4071)
• Fixed an issue with wrong detecting Windows architecture when Python 32bit is used (issue #4134)

5.2.3

• Automatically synchronize active projects between IDE and PlatformIO Home
• Added support for custom device monitor filters (issue #3924)
• Show human-readable message when infinite recursion is detected while processing Interpolation of Values (issue #3883)
• Improved directory interpolation (${platformio.***_dir}) in "platformio.ini" configuration file (issue #3934)
• Ignore resolving of SCons variables (e.g., ${(SOURCE.get_abspath())}) when preprocessing interpolations (issue #3933)
• Added "inc" as a sign that it's the root of the library (issue #4093)
• Fixed an issue when the $PROJECT_DIR variable was not properly replaced in the debug_server option (issue #4086)
• Fixed an issue when PIO Remote device monitor crashes on the first keypress (issue #3832)
• Fixed "Do not know how to make File target 'debug'" issue when debugging project using CLion IDE (pull #4089)
• Fixed "UnicodeEncodeError" when a build output contains non-ASCII characters (issue #3971)
• Fixed an issue when VSCode's debugger does not the honor default environment (issue #4098)

5.2.2

• Override debugging firmware loading mode using --load-mode option for pio debug command
• Added support for CLion IDE 2021.3 (pull #4085)
• Removed debugging "legacy Click" message from CLI (issue #4083)
• Fixed a "TypeError: sequence item 1: expected str instance, list found" issue when extending configuration option in "platformio.ini" with the multi-line default value (issue #4082)

5.2.1

• Clean a build environment and installed library dependencies using a new cleanall target (issue #4062)
• Override a default library builder via a new builder field in a build group of library.json manifest (issue #3957)
• Updated Cppcheck v2.6 with new checks, increased reliability of advanced addons (MISRA/CERT) and various improvements
• Handle the "test" folder as a part of CLion project (issue #4005)
• Improved handling of a library root based on "Conan" or "CMake" build systems (issue #3887)
• Fixed a "KeyError: Invalid board option 'build.cpu'" when using a precompiled library with a board that does not have a CPU field in the manifest (issue #4056)
• Fixed a "FileExist" error when the platformio ci command is used in pair with the --keep-build-dir option (issue #4011)
• Fixed an issue with draft values of C++ language standards that broke static analysis via Cppcheck (issue #3944)

5.2.0

• PlatformIO Debugging

  • Boosted PlatformIO Debugging performance thanks to migrating the codebase to the pure Python 3 Asynchronous I/O stack
  • Debug unit tests created with PlatformIO Unit Testing solution (issue #948)
  • Debug native (desktop) applications on a host machine (issue #980)
  • Support debugging on Windows using Windows CMD/CLI (pio debug) (issue #3793)
  • Configure a custom pattern to determine when debugging server is started with a new debug_server_ready_pattern option
  • Fixed an issue with silent hanging when a custom debug server is not found (issue #3756)

• Package Management

  • Improved a package publishing process:

    • Show package details
    • Check for conflicting names in the PlatformIO Trusted Registry
    • Check for duplicates and used version
    • Validate package manifest

  • Added a new option --non-interactive to pio package publish command

• Build System

  • Process "precompiled" and "ldflags" properties of the "library.properties" manifest (issue #3994)
  • Upgraded build engine to the SCons 4.2 (release notes)
  • Fixed an issue with broken binary file extension when a custom PROGNAME contains dot symbols (issue #3906)
  • Fixed an issue when PlatformIO archives a library that does not contain C/C++ source files (issue #4019)

• Static Code Analysis

  • Updated analysis tools:

    • Clang-Tidy v12.0.1 with new modules and extended checks list
    • Cppcheck v2.5.0 with improved code analysis and MISRA improvements
    • PVS-Studio v7.14 with support for intermodular analysis, improved MISRA support and new diagnostics

• Miscellaneous

  • Ensure that a serial port is ready before running unit tests on a remote target (issue #3742)
  • Fixed an error "Unknown development platform" when running unit tests on a clean machine (issue #3901)
  • Fixed an issue when "main.cpp" was generated for a new project for 8-bit development platforms (issue #3872)

5.1.1

• Fixed a "The command line is too long" issue with a linking process on Windows (issue #3827)
• Fixed an issue with device monitor when the "send_on_enter" filter didn't send EOL chars (issue #3787)
• Fixed an issue with silent mode when unwanted data is printed to stdout (issue #3837)
• Fixed an issue when code inspection fails with "Bad JSON" (issue #3790)
• Fixed an issue with overriding user-specified debugging configuration information in VSCode (issue #3824)

5.1.0

• PlatformIO Home
  • Boosted PlatformIO Home performance thanks to migrating the codebase to the pure Python 3 Asynchronous I/O stack
  • Added a new --session-id option to pio home command that helps to keep PlatformIO Home isolated from other instances and protect from 3rd party access (issue #3397)
• Build System
  • Upgraded build engine to the SCons 4.1 (release notes)
  • Refactored a workaround for a maximum command line character limitation (issue #3792)
  • Fixed an issue with Python 3.8+ on Windows when a network drive is used (issue #3417)
• Package Management
  • New options for pio system prune command:
    • --dry-run option to show data that will be removed
    • --core-packages option to remove unnecessary core packages
    • --platform-packages option to remove unnecessary development platform packages (issue #923)
  • Added new check_prune_system_threshold setting
  • Disabled automatic removal of unnecessary development platform packages (issue #3708, issue #3770)
  • Fixed an issue when unnecessary packages were removed in update --dry-run mode (issue #3809)
  • Fixed a "ValueError: Invalid simple block" when uninstalling a package with a custom name and external source (issue #3816)
• Debugging
  • Configure a custom debug adapter speed using a new debug_speed option (issue #3799)
  • Handle debugging server's "ready_pattern" in "stderr" output
• Miscellaneous
  • Improved listing of multicast DNS services
  • Fixed a "UnicodeDecodeError: 'utf-8' codec can't decode byte" when using J-Link for firmware uploading on Linux (issue #3804)
  • Fixed an issue with a compiler driver for ".ccls" language server (issue #3808)
  • Fixed an issue when pio device monitor --eol and "send_on_enter" filter do not work properly (issue #3787)