+ The MPU port is not supported in this revision number.
+ The documentation for the static allocation functions in the header files has not yet been updated for this revision.
Kernel updates:
+ Simplify the static allocation of objects implementation.
+ Introduce configSUPPORT_DYNAMIC_ALLOCATION in addition to the existing configSUPPORT_STATIC_ALLOCATION so FreeRTOS can be built without providing a heap at all.
Demo application updates:
+ Update the demos to take into account the new configSUPPORT_DYNAMIC_ALLOCATION constant.
+ Add an MSVC demo that only uses static allocation, and does not include a FreeRTOS heap.
+ Update the MSVC project to use both configSUPPORT_STATIC_ALLOCATION and configSUPPORT_DYNAMIC_ALLOCATION.
+ Update the MingW project to use only configSUPPORT_DYNAMIC_ALLOCATION.
+ Added Renesas RXv2 port for IAR.
Demo apps:
+ Demo/Rename the CORTEX_R4F_T_GCC_IAR_ARM directory to just Rename the CORTEX_R4F_T_GCC_IAR.
+ Add IAR project for the RX113.
+ Add RX231 e2studio projects for the RX231.
Exclude the entire croutine.c file when configUSE_CO_ROUTINES is 0.
New ports:
Added Cortex-M7 IAR and Keil port layers that include a minor errata workaround r0p1 Cortex-M7 devices.
Added Cortex-M4F port layer for CCS.
New demo applications:
Added demo application for STM32F7.
Added demo application for SAMv71.
+ Change how queues are allocated and deleted so only one pvPortMalloc() or vPortFree() is required in place of the previous 2.
+ Where the TCB is allocated in relation to the stack is now dependent on the stack growth direction. The stack will not grow into the TCB.
+ Introduce the configAPPLICATION_ALLOCATED_HEAP constant to allow the application to provide the array used by heap_4.c as its heap. This allows the application writer to use qualifiers on the array to, for example, force the memory into faster RAM.
Demo application:
+ Add demo for SAMA5D4 using IAR.
Remove some apparently obsolete code from xTaskPriorityDisinherit() (a task cannot be both blocked and giving bac a mutex at the same time].
Update the new "mutex held count" increment and decrement functions to allow mutexes to be created before the scheduler is started.
Replace #define types with typedefs.
Rename all typedefs to have a _t extension.
Add #defines to automatically convert old FreeRTOS specific types to their new names (with the _t).
Update the Cortex-A9 port to include asserts if an ISR safe FreeRTOS function is called from an interrupt that has a higher logical priority than configMAX_SYSCALL_INTERRUPT_PRIORITY (or whatever the CA9 equivalent is called), and also assert if the binary point is not set correctly.