Release Notes: A segfault in libnet with invalid input has been avoided. Running with no parameters as non-root now shows usage info, not an error message.
Release Notes: This release prints "Timeout" when pings time out, fixes a bug with -w for fractions of seconds, works around a bug in libpcap on Solaris, and implements gratuitous ARP (-U).
Release Notes: This release fixes a timing issue on BSD and adds a statistics line with min/avg/max/std-dev.
Release Notes: This release fixes a null pointer dereference introduced in version 2.10.
Release Notes: This release adds much improved and portable interface autodetection. It replaces gettimeofday() with clock_gettime() where available. It has been changed back from poll() to select() to work around a bug in Mac OS X.
Release Notes: This release adds a -D option that show dots and exclamation marks. Old Arping 1.x code has been removed. The autoconf build system is used. The Solaris timing system has been fixed. Solaris auto-find outgoing interface has been added. This release will beep when there is no reply.