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doc: release-notes: Add C library release notes #54680

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Feb 10, 2023
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doc: release-notes: Add C library release notes #54680

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14 changes: 14 additions & 0 deletions doc/releases/release-notes-3.3.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -20,6 +20,11 @@ API Changes
Changes in this release
=======================

* Newlib nano variant is no longer selected by default when
:kconfig:option:`CONFIG_NEWLIB_LIBC` is selected.
:kconfig:option:`CONFIG_NEWLIB_LIBC_NANO` must now be explicitly selected in
order to use the nano variant.

* Bluetooth: Add extra options to bt_le_per_adv_sync_transfer_subscribe to
allow disabling sync reports, and enable sync report filtering. these two
options are mutually exclusive.
Expand Down Expand Up @@ -760,6 +765,15 @@ Devicetree
Libraries / Subsystems
**********************

* C Library

* Newlib nano variant is no longer selected by default when
:kconfig:option:`CONFIG_NEWLIB_LIBC` is selected.
:kconfig:option:`CONFIG_NEWLIB_LIBC_NANO` must now be explicitly selected
in order to use the nano variant.
* Picolibc now supports all architectures supported by Zephyr.
* Added C11 ``aligned_alloc`` support to the minimal libc.

* C++ Library

* C++ support in Zephyr is no longer considered a "subsystem" because it
Expand Down