Version 2.7.0

• Changed: Plots are now constructed in a consistent order across all varieties (lattice, base, gg, overlay, etc.), with lines on top (fixes #50)
• New: Option to change the default layering with top="points"
• Fixed: Resolved namespace issue with factor plots using lattice
• Fixed: Explicitly convert to factor (no longer automatic as of R 4.0)
• Fixed: strip.names and rug colors now work correctly for ggplot (fixes #85)

Version 2.6.1

• Fixed: Better handling of S4 formulas and data
• Fixed: xlim no longer used in setting up visreg object; fixes #81
• Changed: Added warning if user attempts to combine contrast and transformation; fixes #78
• Internal: Various internal changes for cleaner, more reliable code
• New version numbering system

Version 2.6.0

• New: visreg(), visreg2d() now accept data= option for explicit data passing
• Fixed: coxph models now work when update() is required (#76)
• Fixed: Improved formula parsing (now uses all.vars)
• Changed: plot.visreg2d() now returns transformation matrix for persp plots
• Internal: TravisCI now used for automatic testing
• Internal: More consistent handling of matrix outcome (mlm)

Version 2.5-1

Due to changes in other packages, visreg needed some updates to maintain compatibility:

• Fixed: Restoring compatibility with current version of quantreg
• Fixed: Restoring compatibility with current version of survey

Version 2.5-0

• New: Overlay now works for gg plots
• New: gg option for visreg2d
• New: Improved support for betareg models
• New: Support for polr models
• Changed: visreg2d now split into calculation and plotting functions
• Changed: vignette now HTML instead of PDF
• Fixed: Formula parser now handles nested parentheses
• Fixed: Multi-reponse models with missing residuals() methods
• Fixed: Rugs now work with gg plots
• Fixed: Formula parsing for strata() in coxph models

Version 2.4-1

• New: Can now specify reference level for contrast plots by including x variable in cond list (pull request #33, thank you @jealie!)
• Changed: Default for transformed outcomes now rug=2
• Changed: Default color for persp plot
• Changed: visreg(fit) no longer plots constant objects
• Changed: Appearance of strip names for numeric 'by' variables
• Fixed: plot.visreg wasn't plotting gg objects by default
• Fixed: Bug in formula parsing w/ complicated interactions
• Fixed: Bugs in ggFactorPlot
• Fixed: print.cond warning using warning() instead of printing text

Version 2.4-0

• New: gg=TRUE works for regular plots, not just cross-sectional plots
• New: gg=TRUE returns a gg object, which can then be manipulated further
• Fixed: bug in coxph models with type='contrast'