Release Notes: Improves TCP throughput performance, fixes some small bugs in TCP, and fixes annoying bugs in the ARP cache and ARP packet queueing.
Release Notes: A critical bug which could cause the stack to hang was fixed, as were a few smaller bugs.
Release Notes: Major bugfixes were made in the TCP code, the API code, and the checksum calculation. Many portability issues have been fixed. A port to the C64 was added. An lwIP mailing list was started.
Release Notes: A new and improved directory structure, better error handling, better stability when run with very tight memory constraints, many TCP bugfixes, and more comments in the code. Also, more documentation has been added to the homepage.