NEWS

Wireshark 4.1.0 Release Notes

 This is an experimental release intended to test new features for
 Wireshark 4.2.

 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

  Windows installer file names now have the format
  Wireshark-<version>-<architecture>.exe.

  Wireshark is now better about generating valid UTF-8 output.

  A new display filter feature for filtering raw bytes has been added.

  Display filter autocomplete is smarter about not suggesting invalid
  syntax.

  "Tools › Lua Scripts › Launch with SSLKEYLOGFILE" can launch your web
  browser with the SSLKEYLOGFILE environment variable set to the
  appropriate value.

  The Windows build has a new SpeexDSP external dependency
  (https://www.speex.org). The speex code that was previously bundled
  has been removed.

  The personal extcap plugin folder location on Unix has been changed to
  follow existing conventions for architecture-dependent files. The
  extcap personal folder is now `$HOME/.local/lib/wireshark/extcap`.
  Previously it was `$XDG_CONFIG_HOME/wireshark/extcap`.

  The installation target no longer installs development headers by
  default. That must be done explicitly using `cmake --install
  <builddir> --component Development`.

  The Wireshark installation is relocatable on Linux (and other ELF
  platforms with support for relative RPATHs).

  Support for building an NSIS Windows installer using the MinGW-w64
  toolchain and MSYS2[1]. Read README.msys2 in the distribution for more
  information.

  When changing the dissector via the Decode As table for values that
  have default dissectors registered, selecting "(none)" will select no
  dissection (while still allowing heuristic dissectors to attempt to
  dissect.) The previous behavior was to reset the dissector to the
  default. To facilitate resetting the dissector, the default dissector
  is now sorted at the top of the list of possible dissector options.

  Sorting changes: * When sorting packet list with a filter applied,
  only the visible packets are sorted, which greatly increases sorting
  speed. * The cache size for column text is limited to a default of
  10000 rows, which limits the maximum memory usage. The maximum value
  can be changed in Preferences→Appearance→Layout * Due to the above,
  columns that require packet dissection can only be sorted if the
  number of visible rows is less than the cache size. If there are more
  rows visible, a warning will appear. Columns that do not require
  packet dissection (those that calculated directly from the capture
  file frame headers, such as packet number, time, and frame length) can
  be sorted with any number of visible rows. * Sorting can be
  interrupted.

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

  Bug Fixes

   The following bugs have been fixed:

     • Issue 18413[2] - RTP player do not play audio frequently on Win32
       builds with Qt6

     • Issue 18510[3] - Playback marker do not move after unpause with
       Qt6

  New and Updated Features

   The following features are new (or have been significantly updated)
   since version 4.0.0:

     • The API has been updated to ensure that the dissection engine
       produces valid UTF-8 strings.

     • Wireshark now builds with Qt6 by default. To use Qt5 instead pass
       USE_qt6=OFF to CMake.

     • ciscodump support Cisco IOS XE 17.x

     • The default interval between GUI updates when capturing has been
       decreased from 500ms to 100ms, and is now configurable.

     • The -n option also now disables IP address geolocation
       information lookup in configured MaxMind databases (and
       geolocation lookup can be enabled with -Ng.) This is most
       relevant for tshark, where geolocation lookups are synchronous.

     • Implement built-in dissector for FiRa UWB Controller Interface
       (UCI) protocol. Recognizes PCAP traces with the link type
       LINKTYPE_FIRA_UCI=299.

     • The reassemble_streaming_data_and_call_subdissector() API has
       been added to provide a simpler way to reassemble the streaming
       data of a high level protocol that is not on top of TCP.

     • The display filter drop-down list is now sorted by "most recently
       used" instead of "most recently created".

     • Display filter syntax-related changes:

        • It is now possible to filter on raw packet data for any field
       by using the syntax `@some.field == <bytes…​>`. This can be
       useful to filter on malformed UTF-8 strings, among other use
       cases where it is necessary to look at the field’s raw data.

        • Negation (unary minus) now works with any display filter
       arithmetic expression.

        • Using the slice operator with strings produces a string.
       Previously it would produce a byte array. This is useful to
       index/slice UTF-8 multibyte strings. String byte slices can still
       be obtained using the "@" (raw operator) prefix.

        • Arithmetic expressions are allowed as set elements.

        • Absolute date and time values can be written as Unix time.

        • The limitation where a minus sign needed to be preceded by a
       space character has been removed.

        • Added XOR logical operator.

     • Running the test suite requires the pytest[4] Python module. The
       emulation layer that allowed running tests without pytest
       installed has been removed.

     • When saving files or exporting packets after changing their time
       with the "Time Shift" dialog, the shifted time is written to the
       new file.

     • TLS secrets used in decrypting packets can be embedded (or
       discarded) from the capture file via the GUI, similar to the
       options --inject-secrets and --discard-all-secrets in editcap.

  New Protocol Support

   DECT DLC protocol layer (DECT-DLC), DECT NWK protocol layer
   (DECT-NWK), DECT proprietary Mitel OMM/RFP Protocol (also named
   AaMiDe), FiRa UWB Controller Interface (UCI), FiveCo’s Register
   Access Protocol (5CoRAP), GPS L1 C/A LNAV navigation messages, ID3v2,
   Low Level Signalling (ATSC3 LLS), Management Component Transport
   Protocol (MCTP), Management Component Transport Protocol - Control
   Protocol (MCTP CP), Matter home automation protocol, Non-volatile
   Memory Express - Management Interface (NVMe-MI) over MCTP, SAP
   Enqueue Server (SAPEnqueue), SAP GUI (SAPDiag), SAP HANA SQL Command
   Network Protocol (SAPHDB), SAP Internet Graphic Server (SAP IGS), SAP
   Message Server (SAPMS), SAP Network Interface (SAPNI), SAP Router
   (SAPROUTER), SAP Secure Network Connection (SNC), SBAS L1 Navigation
   Messages (SBAS L1), SINEC AP1 Protocol (SINEC AP), Support for almost
   all WoW 1.12 messages has been added., Train Real-Time Data Protocol
   (TRDP), UBX protocol of u-blox GNSS receivers (UBX), UDP Tracker
   Protocol for BitTorrent (BT-Tracker), Windows Delivery Optimization
   (MS-DO), and World of Warcraft World (WOWW) display filters have been
   changed to be more internally consistent.

  Updated Protocol Support

     • The JSON dissector now has a preference to enable/disable
       "unescaping" of string values. By default it is off. Previously
       it was always on.

     • The JSON dissector now supports "Display JSON in raw form".

     • The IPv6 dissector has a new preference to show some semantic
       details about addresses (default off).

     • The IPv6 dissector now supports dissecting Application-aware IPv6
       Networking (APN6) option[5] in the Hop-by-Hop Options Header
       (HBH) and Destination Options Header (DOH). This feature supports
       to dissect all three types of APN ID, which are 32-bit, 64-bit
       and 128-bit in length.

     • The XML dissector now supports display character according to the
       "encoding" attribute of the XML declaration, and has a new
       preference to set default character encoding for some XML
       document without "encoding" attribute.

     • The SIP dissector now has a new preference to set default charset
       for displaying the body of SIP messages in raw text view.

     • The HTTP dissector now supports dissecting chunked data in
       streaming reassembly mode. Subdissectors of HTTP can register
       itself in "streaming_content_type" subdissector table for
       enabling streaming reassembly mode while transferring in chunked
       encoding. This feature ensures the server stream messages of
       GRPC-Web over HTTP/1.1 can be dissected even if the last chunk is
       absent.

     • The media type dissector table now properly treats media types
       and subtypes as case-insensitive automatically, per RFC 6838.
       Media types no longer need to be lower cased before registering
       or looking up in the table.

     • The CFM dissector has been overhauled and updated to the level of
       IEEE std 802.1Q-2022 and ITU-T Rec. G.8013/Y.1371 (08/2015). This
       includes dissection of additional PDU types and TLVs as well as
       deeper dissection of existing PDUs and TLVs.

   Too many other protocols have been updated to list them all here.

  New and Updated Capture File Support

  New and Updated Codec support

   Adaptive Multi-Rate (AMR), if compiled with opencore-amr[6]

 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 download page[7] 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 "Help › About
  Wireshark › Folders" or `tshark -G folders` to find the default
  locations on your system.

 Getting Help

  The User’s Guide, manual pages and various other documentation can be
  found at https://www.wireshark.org/docs/

  Community support is available on Wireshark’s Q&A site[8] and on the
  wireshark-users mailing list. Subscription information and archives
  for all of Wireshark’s mailing lists can be found on the web site[9].

  Bugs and feature requests can be reported on the issue tracker[10].

  You can learn protocol analysis and meet Wireshark’s developers at
  SharkFest[11].

 How You Can Help

  The Wireshark Foundation helps as many people as possible understand
  their networks as much as possible. You can find out more and donate
  at wiresharkfoundation.org[12].

 Frequently Asked Questions

  A complete FAQ is available on the Wireshark web site[13].

 References

   1. https://www.msys2.org/
   2. https://gitlab.com/wireshark/wireshark/-/issues/18413
   3. https://gitlab.com/wireshark/wireshark/-/issues/18510
   4. https://pypi.org/project/pytest/
   5. https://www.ipv6plus.net/Phase3/apn6/
   6. https://sourceforge.net/projects/opencore-amr/
   7. https://www.wireshark.org/download.html
   8. https://ask.wireshark.org/
   9. https://www.wireshark.org/lists/
  10. https://gitlab.com/wireshark/wireshark/-/issues
  11. https://sharkfest.wireshark.org
  12. https://wiresharkfoundation.org
  13. https://www.wireshark.org/faq.html