add 7.0.0 release

Author: ilg-ul

_posts/releases/2023-07-19-micro-os-plus-v7-0-0-released.md

@@ -0,0 +1,87 @@
+---
+layout: post
+lang: en
+title: µOS++ v7.0.0 released
+author: Liviu Ionescu
+
+date: 2023-07-19 13:09:00 +0200
+
+categories:
+  - releases
+  - rtos
+  - micro-os-plus
+
+---
+
+Version v7.0.0 is a new **µOS++** major release. It represents
+a major milestone, being the first release that includes extensive
+tests running in scriptable CI environments.
+
+The main functional changes
+are several updates required to avoid warnings with the new toolchains.
+
+## Affected packages
+
+- [micro-os-plus-iii](https://github.com/micro-os-plus/micro-os-plus-iii)
+
+## Install
+
+As a source code library, µOS++ can be integrated into another project
+in the traditional way,
+by either copying the relevant files into the target project, or by linking
+the relevant project as Git submodules.
+
+However, the workflow can be further automated and the most convenient way is
+to **add it as a dependency** to the project via **xpm**.
+
+## New features
+
+- [[#78](https://github.com/micro-os-plus/micro-os-plus-iii/issues/78)]:
+  add a `clear()` method to thread statistics and to the scheduler.
+
+- [[#79](https://github.com/micro-os-plus/micro-os-plus-iii/issues/79)]:
+  add the `this_thread` address and name when displaying the assert error
+
+- [[#81](https://github.com/micro-os-plus/micro-os-plus-iii/issues/81)]:
+  add a thread attribute to check if the thread constructor is called
+  only after destroy
+
+## Addressed bugs
+
+- [[#82](https://github.com/micro-os-plus/micro-os-plus-iii/issues/82)]:
+  GCC 12 spotted a name clash between the `file_system()` method and
+  the class; the method was renamed to `get_file_system()`
+
+- [[#83](https://github.com/micro-os-plus/micro-os-plus-iii/issues/83)]:
+  GCC 12 spotted a name clash between the unscoped enum `socket` definition
+  and the top definition; the definition was changed to a scoped `enum class`.
+
+Note: those were both breaking changes, which required to increase
+the version major number.
+
+## Other changes
+
+- [[#77](https://github.com/micro-os-plus/micro-os-plus-iii/issues/77)]:
+  the arm-none-eabi-gcc 12 complains about some new warnings;
+  silenced
+
+- [[#80](https://github.com/micro-os-plus/micro-os-plus-iii/issues/80)]:
+  in a normal use case, during thread destruction, a debug message
+  says _already gone_; fixed, do not call `kill()` in the destructor if
+  it was already called explicitly.
+
+- [[#84](https://github.com/micro-os-plus/micro-os-plus-iii/issues/84)]:
+  the stack underflow condition was tested only when asserts were enabled;
+  fixed, the condition is always tested and `abort()` is invoked
+
+## Known problems
+
+- the header files are still located below a `cmsis-plus` folder; to be
+replaced by `micro-os-plus` in a future major release.
+- the `file_descriptors_manager` class is not yet synchronised
+
+## Future developments
+
+This will hopefully be the final release of µOS++ in the current monolithic
+structure (IIIe). Work on the next version (IVe) is already under way;
+the main change is that it'll use a modular structure, based on xPacks.