April 24th, 2013· This version fixes radicati addition and filling speed.
March 6th, 2013· This version fixes the Interpretation and implementation of the Yupana by Radicati di Primeglio.
· The GUI has been localized for Romanian.
March 2nd, 2013· A new theory has been added: representation of numbers and an addition algorithm have been implemented.
· The GUI has been localized for the following languages: French, German, Portuguese, Russian, and Japanese.
February 12th, 2013· This version changes Yupana by Florio (multiplication algorithm updated), Yupana by Wassen (representation: seeds displacement added), and documentation (User Manual updated).
February 11th, 2013· This version translates the User Manual into English.
February 6th, 2013· This version adds Wassen Theory (representation and addition), updates Florio Theory (representation, addition, and multiplication) and Glynn Theory (representation, addition, and multiplication), and improves Menu and Documentation.
December 20th, 2012· Theories about the Incan Abacus were divided into two categories: Positional System and Sign-value System.
· The Sign-value System Yupana by Cinzia Florio and her multiplication algorithm were implemented.
· Some improvements were made to images and style.