network-2.6.2.1: CHANGELOG.md

## Version 2.6.2.1

 * Regenerate configure and HsNetworkConfig.h.in.

 * Better detection of CAN sockets.

## Version 2.6.2.0

 * Add support for TCP_USER_TIMEOUT.

 * Don't conditionally export the SockAddr constructors.

 * Add isSupportSockAddr to allow checking for supported address types
   at runtime.