Wireshark 2.2.1 公布了。Wireshark 是世界最时兴的开源系统，完全免费混合开发网络协议分析系统，它常常被网络专家客户排错，布署，剖析教育主题活动中

wireshark 是一款功能齐全健全，翠绿色安全性，实际操作便捷功能强大，页面简单友善，完全免费的，非常棒的unix和windows上的开源系统网络协议解析器。它能够即时检验网络通讯数据信息，还可以检验其爬取的网络通讯数据信息快照更新文档。能够根据用户界面访问这种数据信息，能够查询网络通讯数据文件中每一层的完整內容。wireshark有着很多强劲的特点：包括有强表明过滤装置语言表达（rich display filter language）和查询tcp对话重新构建流的能力；它更适用上千种协议书和新闻媒体种类； 有着一个相近tcpdump(一个linux下的网络协议分析工具)的名叫tethereal的的cmd版本号。

已修补的 bugs：

Flow Graph colored data arrows. (Bug 12065)

Capture File Properties under Statistics Grayed Out after Stopping a Capture. (Bug 12071)

Qt: Hidden columns displayed during live capture. (Bug 12377)

Unable to save changes to coloring rules. (Bug 12814)

Bad description for NBSS error code 0x81. (Bug 12835)

Live capture from USBPcap fails immediately. (Bug 12846)

Cannot decrypt EAP-TTLS traffic (not recognized as conversation). (Bug 12879)

Export packet dissections Option disabled after capturing traffic. (Bug 12898)

Failure to open file named with Chinese or other multibyte characters. (Bug 12900)

k12 text file format causes errors. (Bug 12903)

File | File Set | List Files dialog is blank. (Bug 12904)

Decoding/Display of an INAP CONNECT message goes wrong for the Destination Routing Address part. (Bug 12911)

TLS padding extension dissector length parsing bug. (Bug 12922)

Diameter dictionary bugs. (Bug 12927)

File open from menu bar with filter in place causes Wireshark to crash. (Bug 12929)

Unable to capture USBPcap trace using tshark with extcap built. (Bug 12949)

P1 dissector fails a TVB assertion. (Bug 12976)

Multiple PortableApps instances can once again be run at the same time.