Changes in version 2.0.6 (2022-05-31)                  

    o   Fix zoom ratio for keyboard navigation.

                        Changes in version 2.0.5                        

    o   fix navigation bugs

    o   no garbage on screen printing

                 Changes in version 2.0.4 (2013-10-15)                  

    o   fix pdf print bug

    o   guess format for printing in navigation mode

                        Changes in version 2.0.3                        

    o   Add keyboard support in navigation mode

    o   fix some bugs under windows, improve messages

    o   systematic check of Rstudio on win, mac and linux.

                        Changes in version 2.0.2                        

    o   Improved interactive mode in session mode (Rstudio device etc.)

                        Changes in version 2.0.1                        

    o   Add RStudio support for Windows.

                        Changes in version 2.0.0                        

    o   Initial public release.