Changes in version 1.1-9 (2026-04-25)                  

    o   Improved computational efficiency.

                 Changes in version 1.1-8 (2020-05-09)                  

    o   Added function "adj.two" to handle overrunning and underrunning designs.

    o   Changed error precision to 4 decimal places in "opt.design".

    o   Replaced option 'pt' with 'pe' in "opt.design".

    o   Replaced option 'two.sided' with 'stop.eff' in "opt.design".

    o   Resolved CRAN issues.

                 Changes in version 1.1-7 (2019-05-31)                  

    o   Fixed a bug that caused incorrect type II error calculations for phase 2 designs.

    o   Added "two.sided" option for phase 2 three-stage designs.

    o   Added an alpha-spending function (the gsDesign package is no longer required).

                 Changes in version 1.1-4 (2018-01-11)                  

    o   "dec.sim" now reports the probability that each dose level is selected as above the maximum tolerated dose (MTD).

    o   Updated the dose-finding simulation algorithm to provide a more accurate MTD when the decision is "E".

    o   Changed the parameter name in Phase I dose-finding from pc to pt.

    o   Phase I designs are now referred to as the Target Toxicity Design.

    o   Added option "pe.par" to "dec.table" to calculate the true type II error.

                        Changes in version 1.1-3                        

    o   "dec.table" now supports the HSD spending function.

    o   Removed option "pc.u" from "dec.table".

    o   Removed option "sf" from "dec.table".

    o   Added option "sf.param" to "dec.table" for greater flexibility.

    o   Updated vignettes.

                 Changes in version 1.1-2 (2017-09-06)                  

    o   Added detailed documentation and additional examples.

    o   Initial release on CRAN.