**A professional collaborative platform for embedded development**
5.3.0 (2022-??-??)
6.0.0 (2022-??-??)
~~~~~~~~~~~~~~~~~~
Please check `Migration guide from 5.x to 6.0 <https://docs.platformio.org/en/latest/core/migration.html>`__.
***Package Management**
- New unified Package Management CLI (``pio pkg``):
@ -66,293 +68,12 @@ PlatformIO Core 5
- Better handling of the failed tests using the `Unit Testing <https://docs.platformio.org/en/latest/plus/unit-testing.html>`__ solution
- Finally removed all tracks to the Python 2.7, the Python 3.6 is the minimum supported version.
5.2.5 (2022-02-10)
~~~~~~~~~~~~~~~~~~
.._release_notes_5:
- Improved support for private packages in `PlatformIO Registry <https://registry.platformio.org/>`__
- Improved checking of available Internet connection for IPv6-only workstations (`pull #4151 <https://github.com/platformio/platformio-core/pull/4151>`_)
- Better detecting of default PlatformIO project directory on Linux OS (`pull #4158 <https://github.com/platformio/platformio-core/pull/4158>`_)
- Respect disabling debugging server from "platformio.ini" passing an empty value to the `debug_server <https://docs.platformio.org/en/latest/projectconf/section_env_debug.html#debug-server>`__ option
- Fixed a "module 'asyncio' has no attribute 'run'" error when launching PIO Home using Python 3.6 (`issue #4169 <https://github.com/platformio/platformio-core/issues/4169>`_)
PlatformIO Core 5
-----------------
5.2.4 (2021-12-15)
~~~~~~~~~~~~~~~~~~
- Added support for a new ``headers`` field in `library.json <https://docs.platformio.org/en/latest/librarymanager/config.html>`__ (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 <https://github.com/platformio/platformio-core/issues/4114>`_)
- Improved support for projects located on a network share (`issue #3417 <https://github.com/platformio/platformio-core/issues/3417>`_, `issue #3926 <https://github.com/platformio/platformio-core/issues/3926>`_, `issue #4099 <https://github.com/platformio/platformio-core/issues/4099>`_)
- Upgraded build engine to the SCons 4.3 (`release notes <https://github.com/SCons/scons/blob/rel_4.3.0/CHANGES.txt>`__)
- Fixed an issue with the CLion project generator when a macro contains a space (`issue #4102 <https://github.com/platformio/platformio-core/issues/4102>`_)
- Fixed an issue with the NetBeans project generator when the path to PlatformIO contains a space (`issue #4096 <https://github.com/platformio/platformio-core/issues/4096>`_)
- Fixed an issue when the system environment variable does not override a project configuration option (`issue #4125 <https://github.com/platformio/platformio-core/issues/4125>`_)
- Fixed an issue when referencing ``*_dir`` option from a custom project configuration environment (`issue #4110 <https://github.com/platformio/platformio-core/issues/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 <https://github.com/platformio/platformio-core/issues/4071>`_)
- Fixed an issue with wrong detecting Windows architecture when Python 32bit is used (`issue #4134 <https://github.com/platformio/platformio-core/issues/4134>`_)
5.2.3 (2021-11-05)
~~~~~~~~~~~~~~~~~~
- Automatically synchronize active projects between IDE and `PlatformIO Home <https://docs.platformio.org/en/latest/home/index.html>`__
- Added support for custom `device monitor filters <https://docs.platformio.org/en/latest/core/userguide/device/cmd_monitor.html#filters>`__ (`issue #3924 <https://github.com/platformio/platformio-core/issues/3924>`_)
- Show human-readable message when infinite recursion is detected while processing `Interpolation of Values <https://docs.platformio.org/en/latest/projectconf/interpolation.html>`__ (`issue #3883 <https://github.com/platformio/platformio-core/issues/3883>`_)
- Ignore resolving of SCons variables (e.g., ``${(SOURCE.get_abspath())}``) when preprocessing interpolations (`issue #3933 <https://github.com/platformio/platformio-core/issues/3933>`_)
- Added "inc" as a sign that it's the root of the library (`issue #4093 <https://github.com/platformio/platformio-core/issues/4093>`_)
- Fixed an issue when the ``$PROJECT_DIR`` variable was not properly replaced in the `debug_server <https://docs.platformio.org/en/latest/projectconf/section_env_debug.html#debug-server>`__ option (`issue #4086 <https://github.com/platformio/platformio-core/issues/4086>`_)
- Fixed an issue when `PIO Remote <https://docs.platformio.org/en/latest/plus/pio-remote.html>`__ device monitor crashes on the first keypress (`issue #3832 <https://github.com/platformio/platformio-core/issues/3832>`_)
- Fixed "Do not know how to make File target 'debug'" issue when debugging project using `CLion IDE <https://docs.platformio.org/en/latest/integration/ide/clion.html>`__ (`pull #4089 <https://github.com/platformio/platformio-core/issues/4089>`_)
- Fixed "UnicodeEncodeError" when a build output contains non-ASCII characters (`issue #3971 <https://github.com/platformio/platformio-core/issues/3971>`_)
- Fixed an issue when VSCode's debugger does not the honor default environment (`issue #4098 <https://github.com/platformio/platformio-core/issues/4098>`_)
5.2.2 (2021-10-20)
~~~~~~~~~~~~~~~~~~
- Override debugging firmware loading mode using ``--load-mode`` option for `pio debug <https://docs.platformio.org/en/latest/core/userguide/cmd_debug.html>`__ command
- Added support for CLion IDE 2021.3 (`pull #4085 <https://github.com/platformio/platformio-core/issues/4085>`_)
- Fixed a "TypeError: sequence item 1: expected str instance, list found" issue when extending configuration option in `"platformio.ini" <https://docs.platformio.org/en/latest/projectconf.html>`__ with the multi-line default value (`issue #4082 <https://github.com/platformio/platformio-core/issues/4082>`_)
5.2.1 (2021-10-11)
~~~~~~~~~~~~~~~~~~
- Clean a build environment and installed library dependencies using a new ``cleanall`` target (`issue #4062 <https://github.com/platformio/platformio-core/issues/4062>`_)
- Override a default library builder via a new ``builder`` field in a ``build`` group of `library.json <https://docs.platformio.org/en/latest/librarymanager/config.html#build>`__ manifest (`issue #3957 <https://github.com/platformio/platformio-core/issues/3957>`_)
- Updated `Cppcheck <https://docs.platformio.org/en/latest/plus/check-tools/cppcheck.html>`__ 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 <https://github.com/platformio/platformio-core/issues/4005>`_)
- Improved handling of a library root based on "Conan" or "CMake" build systems (`issue #3887 <https://github.com/platformio/platformio-core/issues/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 <https://github.com/platformio/platformio-core/issues/4056>`_)
- Fixed a "FileExist" error when the `platformio ci <https://docs.platformio.org/en/latest/userguide/cmd_ci.html>`__ command is used in pair with the ``--keep-build-dir`` option (`issue #4011 <https://github.com/platformio/platformio-core/issues/4011>`_)
- Fixed an issue with draft values of C++ language standards that broke static analysis via Cppcheck (`issue #3944 <https://github.com/platformio/platformio-core/issues/3944>`_)
5.2.0 (2021-09-13)
~~~~~~~~~~~~~~~~~~
***PlatformIO Debugging**
- Boosted `PlatformIO Debugging <https://docs.platformio.org/en/latest/plus/debugging.html>`__ performance thanks to migrating the codebase to the pure Python 3 Asynchronous I/O stack
-`Debug unit tests <https://docs.platformio.org/en/latest/plus/debugging.html#debug-unit-tests>`__ created with `PlatformIO Unit Testing <https://docs.platformio.org/en/latest/plus/unit-testing.html>`__ solution (`issue #948 <https://github.com/platformio/platformio-core/issues/948>`_)
- Debug native (desktop) applications on a host machine (`issue #980 <https://github.com/platformio/platformio-core/issues/980>`_)
- Support debugging on Windows using Windows CMD/CLI (`pio debug <https://docs.platformio.org/en/latest/core/userguide/cmd_debug.html>`__) (`issue #3793 <https://github.com/platformio/platformio-core/issues/3793>`_)
- Configure a custom pattern to determine when debugging server is started with a new `debug_server_ready_pattern <https://docs.platformio.org/en/latest/projectconf/section_env_debug.html#debug-server-ready-pattern>`__ option
- Fixed an issue with silent hanging when a custom debug server is not found (`issue #3756 <https://github.com/platformio/platformio-core/issues/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 <https://docs.platformio.org/en/latest/core/userguide/pkg/cmd_publish.html>`__ command
***Build System**
- Process "precompiled" and "ldflags" properties of the "library.properties" manifest (`issue #3994 <https://github.com/platformio/platformio-core/issues/3994>`_)
- Upgraded build engine to the SCons 4.2 (`release notes <https://github.com/SCons/scons/blob/rel_4.2.0/CHANGES.txt>`__)
- Fixed an issue with broken binary file extension when a custom ``PROGNAME`` contains dot symbols (`issue #3906 <https://github.com/platformio/platformio-core/issues/3906>`_)
- Fixed an issue when PlatformIO archives a library that does not contain C/C++ source files (`issue #4019 <https://github.com/platformio/platformio-core/issues/4019>`_)
***Static Code Analysis**
- Updated analysis tools:
* `Clang-Tidy <https://docs.platformio.org/en/latest/plus/check-tools/clang-tidy.html>`__ v12.0.1 with new modules and extended checks list
*`Cppcheck <https://docs.platformio.org/en/latest/plus/check-tools/cppcheck.html>`__ v2.5.0 with improved code analysis and MISRA improvements
*`PVS-Studio <https://docs.platformio.org/en/latest/plus/check-tools/pvs-studio.html>`__ 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 <https://github.com/platformio/platformio-core/issues/3742>`_)
- Fixed an error "Unknown development platform" when running unit tests on a clean machine (`issue #3901 <https://github.com/platformio/platformio-core/issues/3901>`_)
- Fixed an issue when "main.cpp" was generated for a new project for 8-bit development platforms (`issue #3872 <https://github.com/platformio/platformio-core/issues/3872>`_)
5.1.1 (2021-03-17)
~~~~~~~~~~~~~~~~~~
* Fixed a "The command line is too long" issue with a linking process on Windows (`issue #3827 <https://github.com/platformio/platformio-core/issues/3827>`_)
* Fixed an issue with `device monitor <https://docs.platformio.org/en/latest/core/userguide/device/cmd_monitor.html>`__ when the "send_on_enter" filter didn't send EOL chars (`issue #3787 <https://github.com/platformio/platformio-core/issues/3787>`_)
* Fixed an issue with silent mode when unwanted data is printed to stdout (`issue #3837 <https://github.com/platformio/platformio-core/issues/3837>`_)
* Fixed an issue when code inspection fails with "Bad JSON" (`issue #3790 <https://github.com/platformio/platformio-core/issues/3790>`_)
* Fixed an issue with overriding user-specified debugging configuration information in VSCode (`issue #3824 <https://github.com/platformio/platformio-core/issues/3824>`_)
5.1.0 (2021-01-28)
~~~~~~~~~~~~~~~~~~
***PlatformIO Home**
- Boosted `PlatformIO Home <https://docs.platformio.org/en/latest/home/index.html>`__ performance thanks to migrating the codebase to the pure Python 3 Asynchronous I/O stack
- Added a new ``--session-id`` option to `pio home <https://docs.platformio.org/en/latest/core/userguide/cmd_home.html>`__ command that helps to keep PlatformIO Home isolated from other instances and protect from 3rd party access (`issue #3397 <https://github.com/platformio/platformio-core/issues/3397>`_)
***Build System**
- Upgraded build engine to the SCons 4.1 (`release notes <https://scons.org/scons-410-is-available.html>`_)
- Refactored a workaround for a maximum command line character limitation (`issue #3792 <https://github.com/platformio/platformio-core/issues/3792>`_)
- Fixed an issue with Python 3.8+ on Windows when a network drive is used (`issue #3417 <https://github.com/platformio/platformio-core/issues/3417>`_)
***Package Management**
- New options for `pio system prune <https://docs.platformio.org/en/latest/core/userguide/system/cmd_prune.html>`__ 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 <https://github.com/platformio/platformio-core/issues/923>`_)
- Added new `check_prune_system_threshold <https://docs.platformio.org/en/latest/core/userguide/cmd_settings.html#check-prune-system-threshold>`__ setting
- Disabled automatic removal of unnecessary development platform packages (`issue #3708 <https://github.com/platformio/platformio-core/issues/3708>`_, `issue #3770 <https://github.com/platformio/platformio-core/issues/3770>`_)
- Fixed an issue when unnecessary packages were removed in ``update --dry-run`` mode (`issue #3809 <https://github.com/platformio/platformio-core/issues/3809>`_)
- Fixed a "ValueError: Invalid simple block" when uninstalling a package with a custom name and external source (`issue #3816 <https://github.com/platformio/platformio-core/issues/3816>`_)
***Debugging**
- Configure a custom debug adapter speed using a new `debug_speed <https://docs.platformio.org/en/latest/projectconf/section_env_debug.html#debug-speed>`__ option (`issue #3799 <https://github.com/platformio/platformio-core/issues/3799>`_)
- Handle debugging server's "ready_pattern" in "stderr" output
***Miscellaneous**
- Improved listing of `multicast DNS services <https://docs.platformio.org/en/latest/core/userguide/device/cmd_list.html>`_
- Fixed a "UnicodeDecodeError: 'utf-8' codec can't decode byte" when using J-Link for firmware uploading on Linux (`issue #3804 <https://github.com/platformio/platformio-core/issues/3804>`_)
- Fixed an issue with a compiler driver for ".ccls" language server (`issue #3808 <https://github.com/platformio/platformio-core/issues/3808>`_)
- Fixed an issue when `pio device monitor --eol <https://docs.platformio.org/en/latest/core/userguide/device/cmd_monitor.html#cmdoption-pio-device-monitor-eol>`__ and "send_on_enter" filter do not work properly (`issue #3787 <https://github.com/platformio/platformio-core/issues/3787>`_)
5.0.4 (2020-12-30)
~~~~~~~~~~~~~~~~~~
- Added "Core" suffix when showing PlatformIO Core version using ``pio --version`` command
- Improved ".ccls" configuration file for Emacs, Vim, and Sublime Text integrations
- Updated analysis tools:
*`Cppcheck <https://docs.platformio.org/en/latest/plus/check-tools/cppcheck.html>`__ v2.3 with improved C++ parser and several new MISRA rules
*`PVS-Studio <https://docs.platformio.org/en/latest/plus/check-tools/pvs-studio.html>`__ v7.11 with new diagnostics and updated mass suppression mechanism
- Show a warning message about deprecated support for Python 2 and Python 3.5
- Do not provide "intelliSenseMode" option when generating configuration for VSCode C/C++ extension
- Fixed a "git-sh-setup: file not found" error when installing project dependencies from Git VCS (`issue #3740 <https://github.com/platformio/platformio-core/issues/3740>`_)
- Fixed an issue with package publishing on Windows when Unix permissions are not preserved (`issue #3776 <https://github.com/platformio/platformio-core/issues/3776>`_)
5.0.3 (2020-11-12)
~~~~~~~~~~~~~~~~~~
- Added an error selector for `Sublime Text <https://docs.platformio.org/en/latest/integration/ide/sublimetext.html>`__ build runner (`issue #3733 <https://github.com/platformio/platformio-core/issues/3733>`_)
- Generate a working "projectEnvName" for PlatformIO IDE's debugger for VSCode
- Force VSCode's intelliSenseMode to "gcc-x64" when GCC toolchain is used
- Print ignored test suites and environments in the test summary report only in verbose mode (`issue #3726 <https://github.com/platformio/platformio-core/issues/3726>`_)
- Fixed an issue when the package manager tries to install a built-in library from the registry (`issue #3662 <https://github.com/platformio/platformio-core/issues/3662>`_)
- Fixed an issue when `pio package pack <https://docs.platformio.org/en/latest/core/userguide/pkg/cmd_pack.html>`__ ignores some folders (`issue #3730 <https://github.com/platformio/platformio-core/issues/3730>`_)
5.0.2 (2020-10-30)
~~~~~~~~~~~~~~~~~~
- Initialize a new project or update the existing passing working environment name and its options (`issue #3686 <https://github.com/platformio/platformio-core/issues/3686>`_)
- Automatically build PlatformIO Core extra Python dependencies on a host machine if they are missed in the registry (`issue #3700 <https://github.com/platformio/platformio-core/issues/3700>`_)
- Improved "core.call" RPC for PlatformIO Home (`issue #3671 <https://github.com/platformio/platformio-core/issues/3671>`_)
- Fixed a "PermissionError: [WinError 5]" on Windows when an external repository is used with `lib_deps <https://docs.platformio.org/en/latest/projectconf/section_env_library.html#lib-deps>`__ option (`issue #3664 <https://github.com/platformio/platformio-core/issues/3664>`_)
- Fixed a "KeyError: 'versions'" when dependency does not exist in the registry (`issue #3666 <https://github.com/platformio/platformio-core/issues/3666>`_)
- Fixed an issue with GCC linker when "native" dev-platform is used in pair with library dependencies (`issue #3669 <https://github.com/platformio/platformio-core/issues/3669>`_)
- Fixed an "AssertionError: ensure_dir_exists" when checking library updates from simultaneous subprocesses (`issue #3677 <https://github.com/platformio/platformio-core/issues/3677>`_)
- Fixed an issue when `pio package publish <https://docs.platformio.org/en/latest/core/userguide/pkg/cmd_publish.html>`__ command removes original archive after submitting to the registry (`issue #3716 <https://github.com/platformio/platformio-core/issues/3716>`_)
- Fixed an issue when multiple `pio lib install <https://docs.platformio.org/en/latest/core/userguide/lib/cmd_install.html>`__ command with the same local library results in duplicates in ``lib_deps`` (`issue #3715 <https://github.com/platformio/platformio-core/issues/3715>`_)
- Fixed an issue with a "wrong" timestamp in device monitor output using `"time" filter <https://docs.platformio.org/en/latest/core/userguide/device/cmd_monitor.html#filters>`__ (`issue #3712 <https://github.com/platformio/platformio-core/issues/3712>`_)
5.0.1 (2020-09-10)
~~~~~~~~~~~~~~~~~~
- Added support for "owner" requirement when declaring ``dependencies`` using `library.json <https://docs.platformio.org/en/latest/librarymanager/config.html#dependencies>`__
- Fixed an issue when using a custom git/ssh package with `platform_packages <https://docs.platformio.org/en/latest/projectconf/section_env_platform.html#platform-packages>`__ option (`issue #3624 <https://github.com/platformio/platformio-core/issues/3624>`_)
- Fixed an issue with "ImportError: cannot import name '_get_backend' from 'cryptography.hazmat.backends'" when using `Remote Development <https://docs.platformio.org/en/latest/plus/pio-remote.html>`__ on RaspberryPi device (`issue #3652 <https://github.com/platformio/platformio-core/issues/3652>`_)
- Fixed an issue when `pio package unpublish <https://docs.platformio.org/en/latest/core/userguide/pkg/cmd_unpublish.html>`__ command crashes (`issue #3660 <https://github.com/platformio/platformio-core/issues/3660>`_)
- Fixed an issue when the package manager tries to install a built-in library from the registry (`issue #3662 <https://github.com/platformio/platformio-core/issues/3662>`_)
- Fixed an issue with incorrect value for C++ language standard in IDE projects when an in-progress language standard is used (`issue #3653 <https://github.com/platformio/platformio-core/issues/3653>`_)
- Fixed an issue with "Invalid simple block (semantic_version)" from library dependency that refs to an external source (repository, ZIP/Tar archives) (`issue #3658 <https://github.com/platformio/platformio-core/issues/3658>`_)
- Fixed an issue when can not remove update or remove external dev-platform using PlatformIO Home (`issue #3663 <https://github.com/platformio/platformio-core/issues/3663>`_)
5.0.0 (2020-09-03)
~~~~~~~~~~~~~~~~~~
Please check `Migration guide from 4.x to 5.0 <https://docs.platformio.org/en/latest/core/migration.html>`__.
* Integration with the new **PlatformIO Trusted Registry**
- Enterprise-grade package storage with high availability (multi replicas)
- Secure, fast, and reliable global content delivery network (CDN)
- Universal support for all packages:
* Libraries
* Development platforms
* Toolchains
- Built-in fine-grained access control (role-based, teams, organizations)
- New CLI commands:
*`pio package <https://docs.platformio.org/en/latest/core/userguide/pkg/index.html>`__– manage packages in the registry
*`pio access <https://docs.platformio.org/en/latest/core/userguide/access/index.html>`__– manage package access for users, teams, and maintainers
* Integration with the new **Account Management System**
-`Manage teams and team memberships <https://docs.platformio.org/en/latest/core/userguide/team/index.html>`__
* New **Package Management System**
- Integrated PlatformIO Core with the new PlatformIO Registry
- Support for owner-based dependency declaration (resolves name conflicts) (`issue #1824 <https://github.com/platformio/platformio-core/issues/1824>`_)
- Automatically save dependencies to `"platformio.ini" <https://docs.platformio.org/en/latest/projectconf.html>`__ when installing using PlatformIO CLI (`issue #2964 <https://github.com/platformio/platformio-core/issues/2964>`_)
- Follow SemVer complaint version constraints when checking library updates `issue #1281 <https://github.com/platformio/platformio-core/issues/1281>`_)
- Dropped support for "packageRepositories" section in "platform.json" manifest (please publish packages directly to the registry)
***Build System**
- Upgraded build engine to the `SCons 4.0 - a next-generation software construction tool <https://scons.org/>`__
* `Configuration files are Python scripts <https://docs.platformio.org/en/latest/projectconf/advanced_scripting.html>`__– use the power of a real programming language to solve build problems
* Built-in reliable and automatic dependency analysis
* Improved support for parallel builds
* Ability to `share built files in a cache <https://docs.platformio.org/en/latest/projectconf/section_platformio.html#projectconf-pio-build-cache-dir>`__ to speed up multiple builds
- New `Custom Targets <https://docs.platformio.org/en/latest/projectconf/advanced_scripting.html#custom-targets>`__
* Pre/Post processing based on dependent sources (another target, source file, etc.)
* Command launcher with own arguments
* Launch command with custom options declared in `"platformio.ini" <https://docs.platformio.org/en/latest/projectconf.html>`__
* Python callback as a target (use the power of Python interpreter and PlatformIO Build API)
* List available project targets (including dev-platform specific and custom targets) with a new `pio run --list-targets <https://docs.platformio.org/en/latest/core/userguide/cmd_run.html#cmdoption-platformio-run-list-targets>`__ command (`issue #3544 <https://github.com/platformio/platformio-core/issues/3544>`_)
- Enable "cyclic reference" for GCC linker only for the embedded dev-platforms (`issue #3570 <https://github.com/platformio/platformio-core/issues/3570>`_)
- Automatically enable LDF dependency `chain+ mode (evaluates C/C++ Preprocessor conditional syntax) <https://docs.platformio.org/en/latest/librarymanager/ldf.html#dependency-finder-mode>`__ for Arduino library when "library.property" has "depends" field (`issue #3607 <https://github.com/platformio/platformio-core/issues/3607>`_)
- Fixed an issue with improper processing of source files added via multiple Build Middlewares (`issue #3531 <https://github.com/platformio/platformio-core/issues/3531>`_)
- Fixed an issue with the ``clean`` target on Windows when project and build directories are located on different logical drives (`issue #3542 <https://github.com/platformio/platformio-core/issues/3542>`_)
***Project Management**
- Added support for "globstar/`**`" (recursive) pattern for the different commands and configuration options (`pio ci <https://docs.platformio.org/en/latest/core/userguide/cmd_ci.html>`__, `src_filter <https://docs.platformio.org/en/latest/projectconf/section_env_build.html#src-filter>`__, `check_patterns <https://docs.platformio.org/en/latest/projectconf/section_env_check.html#check-patterns>`__, `library.json > srcFilter <https://docs.platformio.org/en/latest/librarymanager/config.html#srcfilter>`__). Python 3.5+ is required
- Added a new ``-e, --environment`` option to `pio project init <https://docs.platformio.org/en/latest/core/userguide/project/cmd_init.html#cmdoption-platformio-project-init-e>`__ command that helps to update a PlatformIO project using the existing environment
- Dump build system data intended for IDE extensions/plugins using a new `pio project data <https://docs.platformio.org/en/latest/core/userguide/project/cmd_data.html>`__ command
- Do not generate ".travis.yml" for a new project, let the user have a choice
***Unit Testing**
- Updated PIO Unit Testing support for Mbed framework and added compatibility with Mbed OS 6
- Fixed an issue when running multiple test environments (`issue #3523 <https://github.com/platformio/platformio-core/issues/3523>`_)
- Fixed an issue when Unit Testing engine fails with a custom project configuration file (`issue #3583 <https://github.com/platformio/platformio-core/issues/3583>`_)
***Static Code Analysis**
- Updated analysis tools:
* `Cppcheck <https://docs.platformio.org/en/latest/plus/check-tools/cppcheck.html>`__ v2.1 with a new "soundy" analysis option and improved code parser
*`PVS-Studio <https://docs.platformio.org/en/latest/plus/check-tools/pvs-studio.html>`__ v7.09 with a new file list analysis mode and an extended list of analysis diagnostics
- Fixed an issue with PIO Check when a defect with a multiline error message is not reported in verbose mode (`issue #3631 <https://github.com/platformio/platformio-core/issues/3631>`_)
***Miscellaneous**
- Display system-wide information using a new `pio system info <https://docs.platformio.org/en/latest/core/userguide/system/cmd_info.html>`__ command (`issue #3521 <https://github.com/platformio/platformio-core/issues/3521>`_)
- Remove unused data using a new `pio system prune <https://docs.platformio.org/en/latest/core/userguide/system/cmd_prune.html>`__ command (`issue #3522 <https://github.com/platformio/platformio-core/issues/3522>`_)
- Show ignored project environments only in the verbose mode (`issue #3641 <https://github.com/platformio/platformio-core/issues/3641>`_)
- Do not escape compiler arguments in VSCode template on Windows
- Drop support for Python 2 and 3.5
See `PlatformIO Core 5.0 history <https://github.com/platformio/platformio-core/blob/v5.2.5/HISTORY.rst>`__.
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Ivan Kravets