tsdf 1.1-9
- Improved computational efficiency.

tsdf 1.1-8
- Added function "adj.two" to handle overrunning and underrunning designs.
- Changed error precision to 4 decimal places in "opt.design".
- Replaced option 'pt' with 'pe' in "opt.design".
- Replaced option 'two.sided' with 'stop.eff' in "opt.design".
- Resolved CRAN issues.

tsdf 1.1-7
- Fixed a bug that caused incorrect type II error calculations for phase 2 designs.
- Added "two.sided" option for phase 2 three-stage designs.
- Added an alpha-spending function (the gsDesign package is no longer required).

tsdf 1.1-4
- "dec.sim" now reports the probability that each dose level is selected as above the maximum tolerated dose (MTD).
- Updated the dose-finding simulation algorithm to provide a more accurate MTD when the decision is "E".
- Changed the parameter name in Phase I dose-finding from pc to pt.
- Phase I designs are now referred to as the Target Toxicity Design.
- Added option "pe.par" to "dec.table" to calculate the true type II error.

tsdf 1.1-3
- "dec.table" now supports the HSD spending function.
- Removed option "pc.u" from "dec.table".
- Removed option "sf" from "dec.table".
- Added option "sf.param" to "dec.table" for greater flexibility.
- Updated vignettes.

tsdf 1.1-2
- Added detailed documentation and additional examples.
- Initial release on CRAN.