doc: Add networking information to 2.0 release note

Contains major networking changes between 1.14 and 2.0 releases.

Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>

doc/releases/release-notes-2.0.rst

@@ -10,6 +10,15 @@ We are pleased to announce the release of Zephyr kernel version 2.0.0.
 Major enhancements with this release include:
 
 * TBD
+* We added support for SOCKS5 proxy. SOCKS5 is an Internet protocol that
+  exchanges network packets between a client and server through a proxy server.
+* Introduced support for 6LoCAN, a 6Lo adaption layer for Controller Area
+  Networks.
+* We added support for :ref:`Point-to-Point Protocol (PPP) <ppp>`. PPP is a
+  data link layer (layer 2) communications protocol used to establish a direct
+  connection between two nodes.
+* We added support for UpdateHub which is an end-to-end solution for large scale
+  over-the-air update of devices.
 
 The following sections provide detailed lists of changes by component.
 
@@ -36,7 +45,70 @@ Drivers and Sensors
 Networking
 **********
 
-* TBD
+* Add support for `SOCKS5 proxy <https://en.wikipedia.org/wiki/SOCKS>`__.
+  See also `RFC1928 <https://tools.ietf.org/html/rfc1928>`__ for details.
+* Add support for 6LoCAN, a 6Lo adaption layer for Controller Area Networks.
+* Add support for :ref:`Point-to-Point Protocol (PPP) <ppp>`.
+* Add support for UpdateHub which is an end-to-end solution for large scale
+  over-the-air update of devices.
+  See `UpdateHub.io <https://updatehub.io/>`__ for details.
+* Add support to automatically register network socket family.
+* Add support for ``getsockname()`` function.
+* Add SO_PRIORITY support to ``setsockopt()``
+* Add support for VLAN tag stripping.
+* Add IEEE 802.15.4 API for ACK configuration.
+* Add dispatching support to SocketCAN sockets.
+* Add user mode support to PTP clock API.
+* Add user mode support to network interface address functions.
+* Add AF_NET_MGMT socket address family support. This is for receiving network
+  event information in user mode application.
+* Add user mode support to ``net_addr_ntop()`` and ``net_addr_pton()``
+* Add support for sending network management events when DNS server is added
+  or deleted.
+* Add LiteEth Ethernet driver.
+* Add support for ``sendmsg()`` API.
+* Add `civetweb <https://civetweb.github.io/civetweb/>`__ HTTP API support.
+* Add LWM2M IPSO Accelerometer, Push Button, On/Off Switch and Buzzer object
+  support.
+* Add LWM2M Location and Connection Monitoring object support.
+* Add network management L4 layer. The L4 management events are used
+  when monitoring network connectivity.
+* Allow net-mgmt API to pass information length to application.
+* Remove network management L1 layer as it was never used.
+* By default a network interface is set to UP when the device starts.
+  If this is not desired, then it is possible to disable automatic start.
+* Allow collecting network packet TX throughput times in the network stack.
+  This information can be seen in net-shell.
+* net-shell Ping command overhaul.
+* Accept UDP packet with missing checksum.
+* 6lo compression rework.
+* Incoming connection handling refactoring.
+* Network interface refactoring.
+* IPv6 fragmentation fixes.
+* TCP data length fixes if TCP options are present.
+* SNTP client updates.
+* Trickle timer re-init fixes.
+* ``getaddrinfo()`` fixes.
+* DHCPv4 fixes.
+* LWM2M fixes.
+* gPTP fixes.
+* MQTT fixes.
+* DNS fixes for non-compressed answers.
+* mDNS resolver fixes.
+* LLMNR resolver fixes.
+* Ethernet ARP fixes.
+* OpenThread updates and fixes.
+* Network device driver enhancements:
+
+  - Ethernet e1000 fixes.
+  - Ethernet enc28j60 fixes.
+  - Ethernet mcux fixes.
+  - Ethernet stellaris fixes.
+  - Ethernet gmac fixes.
+  - Ethernet stm32 fixes.
+  - WiFi eswifi fixes.
+  - IEEE 802.15.4 kw41z fixes.
+  - IEEE 802.15.4 nrf5 fixes.
 
 Bluetooth
 *********