Changes in version 1.3.15 (2026-02-06) o Fixed CRAN check failure caused by deprecated dplyr functions o Replaced defunct `group_by_()` and `distinct_()` with modern `across()`/`pick()` equivalents o Updated `group_by_at()` to use `group_by(across())` for future compatibility o Removed deprecated `as_data_frame()` usage o Removed `lazyeval` dependency (no longer needed) o Now requires dplyr >= 1.1.0 Changes in version 1.3.14 (2025-04-18) o Improvements to documentation to meet new CRAN requirements o Removed Vignette due to challenge with CRAN build Changes in version 1.3.13 (2021-01-10) o Minor improvement to ggtvc legend Changes in version 1.3.12 (2020-07-20) o Minor bug fixes Changes in version 1.3.11 (2020-03-24) o Updated the syntax for `simcoxtvc` and `ggtvc` for hazard ratios and stratified hazard rates so that it matches the syntax for the other commands o Other bug fixes Changes in version 1.3.10 (2017-05-15) o Minor bug fix for `ggspline` when `qi == 'First Difference'` Changes in version 1.3.9 (2016-05-19) o Added `coxsimSpline` and `ggspline` to simulate and plot quantities of interest for penalised splines Changes in version 1.3.8 o Minor bug fixes, documentation improvements for `coxsimInteract` Changes in version 1.3.7 (2016-03-27) o Improved error messages in `coxsimInteract` and minor documentation changes o Added `coxsimInteract` to simulate quantities of interest for linear multiplicative interactions and `gginteract` for plotting these simulations o Made an important fix to how `coxsimLinear` calculates hazard rates and how `gglinear` plots these simulations o Other documentation fixes Changes in version 1.3.6 o Updated documentation and added the ability to change the smoothing line colour for first difference and relative hazard plots Changes in version 1.3.5 (2015-12-15) o First version, largely ported from simtvc version 0.04 (https://christophergandrud.github.com/simtvc/), with the addition of the