Squid 3.0 was proposed as the project name for replacing Squid 2.50 during the VIII SHRIMP 2016 Workshop in Granada.
Since early 2016, Jim Bowring and Simon Bodorkos produced the open-source program Calamari as a proof-of-concept that we could successfully port the arithmetic of Ken Ludwig’s Squid 2.5 to Java. Simon has documented that effort here.
The details of Simon’s explorations and explanations of Squid 2.5 to date are found here: SHRIMP data processing.
The program Calamari is explained here.
The latest version of Calamari is here.