doc: migration-guide-4.1: Add note about default netmask value

Add an entry about a default IPv4 netmask value.

Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
This commit is contained in:
Robert Lubos 2024-11-28 12:31:06 +01:00 committed by Benjamin Cabé
commit 860233d0c8

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@ -226,6 +226,10 @@ Networking
:c:macro:`PROMETHEUS_HISTOGRAM_DEFINE` and :c:macro:`PROMETHEUS_SUMMARY_DEFINE`
prototypes have changed. (:github:`81712`)
* The default subnet mask on newly added IPv4 addresses is now specified with
:kconfig:option:`CONFIG_NET_IPV4_DEFAULT_NETMASK` option instead of being left
empty. Applications can still specify a custom netmask for an address with
:c:func:`net_if_ipv4_set_netmask_by_addr` function if needed.
Other Subsystems
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