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= Wireshark {wireshark-version} Release Notes
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This is an experimental release intended to test new features for
Wireshark 3.0.

== What is Wireshark?

Wireshark is the world’s most popular network protocol analyzer. It is
used for troubleshooting, analysis, development and education.

== What’s New

Many user interface improvements have been made. See the “New and Updated
Features” section below for more details.

=== Bug Fixes

The following bugs have been fixed:

//* wsbuglink:5000[]
//* wsbuglink:6000[Wireshark bug]
//* cveidlink:2014-2486[]
//* Wireshark slowly leaked water under the kitchen sink over the course of several months, causing a big mess.

//_Non-empty section placeholder._

Dumpcap might not quit if Wireshark or TShark crashes.
(wsbuglink:1419[])

=== New and Updated Features

The following features are new (or have been significantly updated)
since version 2.6.0:

* TShark now supports the `-G elastic-mapping` option which generates an ElasticSearch mapping file.
* The “Capture Information” dialog has been added back (wsbuglink:12004[]).
* The Ethernet and IEEE 802.11 dissectors no longer validate the frame check sequence (checksum) by default.
* The TCP dissector gained a new “Reassemble out-of-order segments” preference
  to fix dissection and decryption issues in case TCP segments are received
  out-of-order. See the User’s Guide, chapter _TCP Reassembly_ for details.
* The BOOTP dissector has been renamed to DHCP. With the exception of
  “bootp.dhcp”, the old “bootp.*” display filter fields are still supported
  but may be removed in a future release.

=== Removed Features and Support

* The legacy (GTK+) user interface has been removed and is no longer supported.
* Wireshark requires Qt 5.2 or later. Qt 4 is no longer supported.
* Wireshark requires GLib 2.32 or later.
* Building Wireshark requires CMake. Autotools is no longer supported.

//=== Removed Dissectors

//=== New File Format Decoding Support

=== New Protocol Support

// Add one protocol per line between the -- delimiters.
[commaize]
--
Cisco Meraki Discovery Protocol (MDP)
DoIP (ISO 13400-2 Diagnostic communication over Internet Protocol)
DXL protocol
E1AP (5G) protocol
Exablaze trailers
GLOW Lawo Emberplus Data format
GSM-R protocol (User-to-User Information Element usage)
GSUP (Osmocom Generic Subscriber Update Protocol)
MsgPack protocol
NGAP (5G) protocol
NR (5G) PDCP protocol
PROXY (v2) protocol
Ruby Distributed protocol
Ruby Marshal format
S101 Lawo Emberplus transport frame
STCSIG (Spirent Test Center Signature decoding for Ethernet and FibreChannel, disabled by default)
systemd Journal Export
TPM 2.0 protocol
Ubiquiti Discovery Protocol (UBDP)
XnAP (5G) protocol
--

=== Updated Protocol Support

Too many protocols have been updated to list here.

=== New and Updated Capture File Support

//_Non-empty section placeholder._
// Add one file type per line between the --sort-and-group-- delimiters.
[commaize]
--
systemd Journal Export
--

=== New and Updated Capture Interfaces support

//_Non-empty section placeholder._
[commaize]
--
A new extcap has been added: dpauxmon. It allows capturing DisplayPort AUX channel
data from linux kernel drivers.
--

=== Major API Changes
* Lua: the various logging functions (debug, info, message, warn and critical)
  have been removed. Use the print function instead for debugging purposes.

== Getting Wireshark

Wireshark source code and installation packages are available from
https://www.wireshark.org/download.html.

=== Vendor-supplied Packages

Most Linux and Unix vendors supply their own Wireshark packages. You can
usually install or upgrade Wireshark using the package management system
specific to that platform. A list of third-party packages can be found
on the https://www.wireshark.org/download.html#thirdparty[download page]
on the Wireshark web site.

== File Locations

Wireshark and TShark look in several different locations for preference
files, plugins, SNMP MIBS, and RADIUS dictionaries. These locations vary
from platform to platform. You can use About→Folders to find the default
locations on your system.

== Known Problems

The BER dissector might infinitely loop.
(wsbuglink:1516[])

Capture filters aren't applied when capturing from named pipes.
(wsbuglink:1814[])

Filtering tshark captures with read filters (-R) no longer works.
(wsbuglink:2234[])

Application crash when changing real-time option.
(wsbuglink:4035[])

Wireshark and TShark will display incorrect delta times in some cases.
(wsbuglink:4985[])

Wireshark should let you work with multiple capture files. (wsbuglink:10488[])

== Getting Help

Community support is available on https://ask.wireshark.org/[Wireshark’s
Q&A site] and on the wireshark-users mailing list. Subscription
information and archives for all of Wireshark’s mailing lists can be
found on https://www.wireshark.org/lists/[the web site].

Official Wireshark training and certification are available from
http://www.wiresharktraining.com/[Wireshark University].

== Frequently Asked Questions

A complete FAQ is available on the
https://www.wireshark.org/faq.html[Wireshark web site].