We are pleased to announce the [mbed OS 5.5.6
release](https://github.com/ARMmbed/mbed-os/releases/tag/mbed-os-5.5.6)
is now available.
This release includes ...
Known Issues
The following list of known issues apply to this release:
Contents
Ports for Upcoming Targets
[4608](https://github.com/ARMmbed/mbed-os/pull/4608)
Support Nuvoton's new target NUMAKER_PFM_M487
[4840](https://github.com/ARMmbed/mbed-os/pull/4840)
Add Support for TOSHIBA TMPM066 board
Fixes and Changes
[4801](https://github.com/ARMmbed/mbed-os/pull/4801)
STM32 CAN: Fix issue with speed function calculation
[4808](https://github.com/ARMmbed/mbed-os/pull/4808)
Make HAL & US tickers idle safe
[4812](https://github.com/ARMmbed/mbed-os/pull/4812)
Use DSPI SDK driver API's in SPI HAL driver
[4832](https://github.com/ARMmbed/mbed-os/pull/4832)
NUC472/M453: Fix several startup and hal bugs
[4842](https://github.com/ARMmbed/mbed-os/pull/4842)
Add call to DAC_Enable as this is no longer done as part
[4849](https://github.com/ARMmbed/mbed-os/pull/4849)
Allow using of malloc() for reserving the Nanostack's heap.
[4850](https://github.com/ARMmbed/mbed-os/pull/4850)
Add list of defines to vscode exporter
[4863](https://github.com/ARMmbed/mbed-os/pull/4863)
Optimize memory usage of wifi scan for REALTEK_RTW8195AM
[4869](https://github.com/ARMmbed/mbed-os/pull/4869)
HAL LPCs SPI: Fix mask bits for SPI clock rate
[4873](https://github.com/ARMmbed/mbed-os/pull/4873)
Fix Cortex-A cache file
[4878](https://github.com/ARMmbed/mbed-os/pull/4878)
STM32 : Separate internal ADC channels with new pinmap
[4392](https://github.com/ARMmbed/mbed-os/pull/4392)
Enhance memap, and configure depth level
[4895](https://github.com/ARMmbed/mbed-os/pull/4895)
Turn on doxygen for DEVICE_* features
[4817](https://github.com/ARMmbed/mbed-os/pull/4817)
Move RTX error handlers into RTX handler file
[4902](https://github.com/ARMmbed/mbed-os/pull/4902)
Using CMSIS/RTX Exclusive access macro
[4923](https://github.com/ARMmbed/mbed-os/pull/4923)
fix export static_files to zip
[4844](https://github.com/ARMmbed/mbed-os/pull/4844)
bd: Add ProfilingBlockDevice for measuring higher-level applications
[4896](https://github.com/ARMmbed/mbed-os/pull/4896)
target BLUEPILL_F103C8 compile fix
[4921](https://github.com/ARMmbed/mbed-os/pull/4921)
Update gcc-arm-embedded PPA in Travis
[4926](https://github.com/ARMmbed/mbed-os/pull/4926)
STM32L053x8: Refactor NUCLEO_L053R8 and DISCO_L053C8 targets
[4831](https://github.com/ARMmbed/mbed-os/pull/4831)
Remove excessive use of printf/scanf in mbed_fdopen/_open
[4922](https://github.com/ARMmbed/mbed-os/pull/4922)
bug fix: xdot clock config
[4935](https://github.com/ARMmbed/mbed-os/pull/4935)
STM32: fix F410RB vectors size
[4940](https://github.com/ARMmbed/mbed-os/pull/4940)
Update mbed-coap to version 4.0.9
[4941](https://github.com/ARMmbed/mbed-os/pull/4941)
Update of MemoryPool.h header file.
You can fetch this release from the [mbed-os
GitHub](https://github.com/ARMmbed/mbed-os) repository,
using the tag "mbed-os-5.5.6".
Please feel free to ask any questions or provide feedback on this
release [on the forum](https://forums.mbed.com/),
or to contact us at [support@mbed.org](mailto:support@mbed.org).