Wireshark 3.6.6 Release Notes

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

This is the last release branch with support for 32-bit Windows. Updates will no longer be available after May 22, 2024 for that platform. Issue 17779

The Windows installers now ship with Npcap 1.60. They previously shipped with Npcap 1.55.

Bug Fixes

The following bugs have been fixed:

  • TLS: RSA decryption fails with Extended Master Secret and renegotiation Issue 18059.

  • "dfilter" file on Windows adds carriage returns, and requires line feeds Issue 18082.

  • Npcap bundled version needs a bump to v1.60 for Windows 11 compatibility Issue 18084.

  • "Browse" button in Prefs/Name Resolution/MaxMind crashes Wireshark on macOS Issue 18088.

  • TFTP: some packets are not recognized as TFTP packets with 3.6.5 Issue 18122.

New and Updated Features

New Protocol Support

There are no new protocols in this release.

Updated Protocol Support

DTLS, F5 Capture Information, F5 Ethernet Trailer, FlexRay, MBIM, TFTP, TLS, and ZigBee ZCL

New and Updated Capture File Support

There is no new or updated capture file support in this release.

New File Format Decoding Support

There is no new or updated file format support in this release.

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 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 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.

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

Frequently Asked Questions

A complete FAQ is available on the Wireshark web site.