0.23.0

Added

• Added qindesign::security::RandomDevice, a class that conforms to the UniformRandomBitGenerator C++ named requirement. This makes it a little easier to generate platform-independent entropy.
• EthernetUDP::receivedTimestamp() for retrieving a packet's approximate arrival time.
• Added a "writeFully() with more break conditions" subsection to the README.
• EthernetFrame::receivedTimestamp() for retrieving a frame's approximate arrival time.
• EthernetClient::connectionTimeout() for getting the current timeout value.

Changed

• Changed EthernetUDP::localPort() to be const.
• Changed entropy_random_range() to return zero if EAGAIN.
• Changed entropy_random_range() to use Daniel Lemire's nearly-divisionless algorithm.
• Updated lwIP to v2.2.0-rc1.
• Made StdioPrint single-argument constructor explicit.
• Updated EthernetClass::linkStatus() to return EthernetLinkStatus::Unknown if the hardware hasn't yet been probed.
• Updated AltcpTemplate example to print proxy information.
• Updated EthernetUDP::availableForWrite() to return the amount remaining before hitting the maximum possible payload size.
• Add 5 to MEMP_NUM_SYS_TIMEOUT option for mDNS instead of 1.

Removed

• Removed TTL concept from MDNSClass. This enables it to compile with the latest lwIP.

Fixed

• Fixed SNTP_SET_SYSTEM_TIME_US(sec, us) definition to set the RTC directly because settimeofday() doesn't exist here.
• Fixed AltcpTemplate example so that it compiles when LWIP_ALTCP isn't set.