4.1.0

• PIO Check – automated code analysis without hassle:
  • Potential NULL pointer dereferences
  • Possible indexing beyond array bounds
  • Suspicious assignments
  • Reads of potentially uninitialized objects
  • Unused variables or functions
  • Out of scope memory usage.
• PlatformIO Home 3.0 and Project Inspection
  • Static Code Analysis
  • Firmware File Explorer
  • Firmware Memory Inspection
  • Firmware Sections & Symbols Viewer.
• Added support for Build Middlewares: configure custom build flags per specific file, skip any build nodes from a framework, replace build file with another on-the-fly, etc.
• Extend project environment configuration in "platformio.ini" with other sections using a new extends option (issue #2953)
• Generate .ccls LSP file for Emacs cross references, hierarchies, completion and semantic highlighting
• Added --no-ansi flag for PIO Core to disable ANSI control characters
• Added --shutdown-timeout option to PIO Home Server
• Fixed an issue with project generator for CLion IDE when 2 environments were used (issue #2824)
• Fixed default PIO Unified Debugger configuration for J-Link probe
• Fixed an issue when configuration file options partly ignored when using custom --project-conf (issue #3034)
• Fixed an issue when installing a package using custom Git tag and submodules were not updated correctly (issue #3060)
• Fixed an issue with linking process when $LDSCRIPT contains a space in path
• Fixed security issue when extracting items from TAR archive (issue #2995)
• Fixed an issue with project generator when src_build_flags were not respected (issue #3137)
• Fixed an issue when booleans in "platformio.ini" are not parsed properly (issue #3022)
• Fixed an issue with invalid encoding when generating project for Visual Studio (issue #3183)
• Fixed an issue when Project Config Parser does not remove in-line comments when Python 3 is used (issue #3213)
• Fixed an issue with a GCC Linter for PlatformIO IDE for Atom (issue #3218)

4.0.3

• Added support for multi-environment PlatformIO project for CLion IDE (issue #2824)
• Generate .ccls LSP file for Vim cross references, hierarchies, completion and semantic highlighting (issue #2952)
• Added support for PLATFORMIO_DISABLE_COLOR system environment variable which disables color ANSI-codes in a terminal output (issue #2956)
• Updated SCons tool to 3.1.1
• Remove ProjectConfig cache when "platformio.ini" was modified outside
• Fixed an issue with PIO Unified Debugger on Windows OS when debug server is piped
• Fixed an issue when --upload-port CLI flag does not override declared upload_port option in "platformio.ini" (Project Configuration File)

4.0.2

• Fixed an issue with a broken LDF when checking for framework compatibility issue #2940

4.0.1

• Print debug tool name for the active debugging session
• Do not shutdown PIO Home Server for "upgrade" operations (issue #2784)
• Improved computing of project check sum (structure, configuration) and avoid unnecessary rebuilding
• Improved printing of tabulated results
• Automatically normalize file system paths to UNIX-style for Project Generator (issue #2857)
• Ability to set "databaseFilename" for VSCode and C/C++ extension (issue #2825)
• Renamed "enable_ssl" setting to strict_ssl
• Fixed an issue with incorrect escaping of Windows slashes when using PIO Unified Debugger and "piped" openOCD
• Fixed an issue when "debug", "home", "run", and "test" commands were not shown in "platformio --help" CLI
• Fixed an issue with PIO Home's "No JSON object could be decoded" (issue #2823)
• Fixed an issue when library.json had priority over project configuration for LDF (issue #2867)

4.0.0

Migration Guide from 3.0 to 4.0.

• PlatformIO Plus Goes Open Source

  • Built-in PIO Unified Debugger
  • Built-in PIO Unit Testing

• Project Configuration

  • New project configuration parser with a strict options typing (API)
  • Unified workspace storage (workspace_dir -> .pio) for PlatformIO Build System, Library Manager, and other internal services (issue #1778)
  • Share common (global) options between project environments using [env] section (issue #1643)
  • Include external configuration files with extra_configs option (issue #1590)
  • Custom project ***_dir options declared in platformio section have higher priority than Environment variables
  • Added support for Unix shell-style wildcards for monitor_port option (issue #2541)
  • Added new monitor_flags option which allows passing extra flags and options to platformio device monitor command (issue #2165)
  • Added support for PLATFORMIO_DEFAULT_ENVS system environment variable (issue #1967)
  • Added support for shared_dir where you can place an extra files (extra scripts, LD scripts, etc.) which should be transferred to a PIO Remote machine

• Library Management

  • Switched to workspace .pio/libdeps folder for project dependencies instead of .piolibdeps
  • Save libraries passed to platformio lib install command into the project dependency list (lib_deps) with a new --save flag (issue #1028)
  • Install all project dependencies declared via lib_deps option using a simple platformio lib install command (issue #2147)
  • Use isolated library dependency storage per project build environment (issue #1696)
  • Look firstly in built-in library storages for a missing dependency instead of PlatformIO Registry (issue #1654)
  • Override default source and include directories for a library via library.json manifest using includeDir and srcDir fields
  • Fixed an issue when library keeps reinstalling for non-latin path (issue #1252)
  • Fixed an issue when lib_compat_mode = strict does not ignore libraries incompatible with a project framework

• Build System

  • Switched to workspace .pio/build folder for build artifacts instead of .pioenvs
  • Switch between Build Configurations (release and debug) with a new project configuration option build_type
  • Custom platform_packages per a build environment with an option to override default (issue #1367)
  • Print platform package details, such as version, VSC source and commit (issue #2155)
  • Control a number of parallel build jobs with a new -j, --jobs option
  • Override default "platformio.ini" (Project Configuration File) with a custom using -c, --project-conf option for platformio run, platformio debug, or platformio test commands (issue #1913)
  • Override default development platform upload command with a custom upload_command (issue #2599)
  • Configure a shared folder for the derived files (objects, firmwares, ELFs) from a build system using build_cache_dir option (issue #2674)
  • Fixed an issue when -U in build_flags does not remove macro previously defined via -D flag (issue #2508)

• Infrastructure

  • Python 3 support (issue #895)
  • Significantly speedup back-end for PIO Home. It works super fast now!
  • Added support for the latest Python "Click" package (CLI) (issue #349)
  • Added options to override default locations used by PlatformIO Core (core_dir, globallib_dir, platforms_dir, packages_dir, cache_dir) (issue #1615)
  • Removed line-buffering from platformio run command which was leading to omitting progress bar from upload tools (issue #856)
  • Fixed numerous issues related to "UnicodeDecodeError" and international locales, or when project path contains non-ASCII chars (issue #143, issue #1342, issue #1959, issue #2100)

• Integration

  • Support custom CMake configuration for CLion IDE using CMakeListsUser.txt file
  • Fixed an issue with hardcoded C standard version when generating project for CLion IDE (issue #2527)
  • Fixed an issue with Project Generator when an include path search order is inconsistent to what passed to the compiler (issue #2509)
  • Fixed an issue when generating invalid "Eclipse CDT Cross GCC Built-in Compiler Settings" if a custom PLATFORMIO_CORE_DIR is used (issue #806)

• Miscellaneous

  • Deprecated --only-check PlatformIO Core CLI option for "update" sub-commands, please use --dry-run instead
  • Fixed "systemd-udevd" warnings in 99-platformio-udev.rules (issue #2442)
  • Fixed an issue when package cache (Library Manager) expires too fast (issue #2559)

3.6.7

• PIO Unified Debugger: improved debugging in debug_load_mode = modified and fixed an issue with useless project rebuilding
• Project Generator: fixed a VSCode C/C++'s "Cannot find" warning when CPPPATH folder does not exist
• Fixed an "IndexError: list index out of range" for Arduino sketch preprocessor (issue #2268)
• Fixed an issue when invalid "env_default" in "platformio.ini" (Project Configuration File) results into unhandled errors (issue #2265)

3.6.6

• Project Generator: fixed a warning "Property !!! WARNING !!! is not allowed" for VSCode (issue #2243)
• Fixed an issue when PlatformIO Build System does not pick up "mbed_lib.json" files from libraries (issue #2164)
• Fixed an error with conflicting declaration of a prototype (Arduino sketch preprocessor)
• Fixed "FileExistsError" when platformio ci command is used in pair with --keep-build-dir option
• Fixed an issue with incorrect order of project "include" and "src" paths in CPPPATH (issue #1914)

3.6.5

• Project Generator: added new targets for CLion IDE "BUILD_VERBOSE" and "MONITOR" (serial port monitor) (issue #359)
• Fixed an issue with slow updating of PlatformIO Core packages on Windows
• Fixed an issue when platformio ci recompiles project if --keep-build-dir option is passed (issue #2109)
• Fixed an issue when $PROJECT_HASH template was not expanded for the other directory ***_dir options in "platformio.ini" (Project Configuration File) (issue #2170)

3.6.4

• Improved Project Generator for Desktop IDEs:
  • Use full path to PlatformIO CLI when generating a project (issue #1674)
  • CLion: Improved project portability using "${CMAKE_CURRENT_LIST_DIR}" instead of full path
  • Eclipse: Provide language standard to a project C/C++ indexer (issue #1010)
• Fixed an issue with incorrect detecting of compatibility (LDF) between generic library and Arduino or ARM mbed frameworks
• Fixed "Runtime Error: Dictionary size changed during iteration" (issue #2003)
• Fixed an error "Could not extract item..." when extracting TAR archive with symbolic items on Windows platform (issue #2015)

3.6.3

• Ignore *.asm and *.ASM files when building Arduino-based library (compatibility with Arduino builder)
• Fixed spurious project's "Problems" for PlatformIO IDE for VSCode when ARM mbed framework is used
• Fixed an issue with a broken headers list when generating ".clang_complete" for Emacs (issue #1960)