                       Changes in version 1.15.6                        

  - remove getChild, getChild.df, getParent, getParent.df, getSibling,
    getAncestor and getAncestor.df, instead use child, parent, sibling
    and ancestor methods implemented in tidytree and treeio (2019-01-30,
    Wed)
  - remove get.offspring.df and get.offspring.tip and instead use
    tidytree::offspring (2019-01-28, Mon)
  - facet_widths function to set relative widths of facet panels
    (2019-01-28, Mon)
      - the output is ggplotify::as.ggplot(grid_object), so it is not
        the original ggtree object.

                       Changes in version 1.15.5                        

  - bug fixed of theme_tree2 (2019-01-14, Mon)
      - https://github.com/GuangchuangYu/ggtree/issues/218
  - mv rescale_tree to treeio (2019-01-11, Fri)

                       Changes in version 1.15.4                        

  - reimplement MRCA as a method inherited from tidytree (2019-01-10,
    Thu)
  - mv vignettes to treedata-book

                       Changes in version 1.15.3                        

  - move reroot method to treeio package and rename to root (2018-12-28,
    Fri)
  - bug fixed for setting branch.length="none" in unrooted layouts
    (2018-12-26, Wed)
      - bug introduced in
        https://github.com/GuangchuangYu/ggtree/pull/201

                       Changes in version 1.15.2                        

  - compatible with tibble v=2.0.0 (2018-11-29, Thu)

                       Changes in version 1.15.1                        

  - now revts also reverse the branch column (2018-11-11,
        Sun)
      - https://groups.google.com/d/msgid/bioc-ggtree/50765a34-53e5-44d2-bb8f-6d20a11fa890%40googlegroups.com
  - better msg when taxa name not consistent in sequence and tree files
    with msaplot. (2018-11-07,
        Wed)
      - https://github.com/GuangchuangYu/ggtree/issues/172#issuecomment-436585370

                       Changes in version 1.14.0                        

  - Bioconductor 3.8 release

                       Changes in version 1.13.6                        

  - set scale_y_continuous(expand = c(0, 0)) for gheatmap when colnames
    = FALSE (2018-10-17, Wed)
      - https://github.com/GuangchuangYu/ggtree/issues/204
  - made data usable with treedata in 'equal_angle' and 'daylight'
    layouts (2018-10-11, Thu)
      - https://github.com/GuangchuangYu/ggtree/pull/201

                       Changes in version 1.13.5                        

  - enable additional parameters passed to geom_rootedge (2018-09-13,
    Thu)
      - https://github.com/GuangchuangYu/ggtree/issues/195
  - facet_labeller to label panels of facet_plot output (2018-09-10,
    Mon)
      - https://groups.google.com/forum/?utm_medium=email&utm_source=footer#!msg/bioc-ggtree/nAl3bNswxQM/crBwKtS3BAAJ

                       Changes in version 1.13.3                        

  - update viewClade according to the change of ggplot2 (2018-08-07,
    Tue)
      - https://github.com/GuangchuangYu/ggtree/issues/188

                       Changes in version 1.13.2                        

  - xmax_adjust in viewClade (2018-07-21, Sat)
      - https://github.com/GuangchuangYu/ggtree/issues/187
  - update rd of facet_plot by adding description and example
    (2018-07-19, Thu)
  - order by y in facet_plot (2018-07-09, Mon)
  - extend parameter in geom_cladelabel and geom_strip supports
    specifying extension of both sides (2018-07-06, Fri)
  - geom_nodelab2 for circular layout (2018-07-03,
        Tue)
      - https://groups.google.com/d/msgid/bioc-ggtree/cbe5e1e3-99c4-481d-8523-d5b50cf0460b%40googlegroups.com
  - re-export
        ggplot2::fortify
      - https://groups.google.com/d/msgid/bioc-ggtree/bf7a9b3c-9a8f-4d8d-a782-1b467fba38bc%40googlegroups.com

                       Changes in version 1.13.1                        

  - geom_nodepoint & geom_tippoint now compatible with ggplot2 v 2.2.1 &
    3.0.0 (2018-06-26, Tue)
  - geom_rootedge (2018-06-13, Wed)
      - https://github.com/GuangchuangYu/ggtree/issues/183
  - clade_name parameter added in collapse (2018-05-28,
        Mon)
      - https://groups.google.com/forum/?utm_medium=email&utm_source=footer#!msg/bioc-ggtree/0H1PCJPlI1Q/DeZf9EVhBQAJ
  - bug fixed of gheatmap for rowname subsetting is partial match in R
    (2018-05-23, Wed)
      - https://github.com/GuangchuangYu/ggtree/issues/182
  - compatible with ggplot2 2.2.1.9000 for geom_text2(parse="emoji")
  - typo on vignettes (2018-05-08, Tue)
      - https://github.com/GuangchuangYu/ggtree/pull/178, thanks
        @abichat
  - compatible with ggplot2 2.2.1.9000 (2018-05-02, Wed)
      - incorporate newly introduce parameter linejoin and arrow.fill in
        geom_segment

                       Changes in version 1.12.0                        

  - Bioconductor 3.7 release (2018-05-01, Tue)

                       Changes in version 1.11.6                        

  - reexport treeio::read.iqtree & treeio::read.astral(2018-04-17, Tue)
  - now geom_treescale will plot the text that can always be separated
    from the bar (2018-03-07, Wed)
  - optimize daylight layout
      - https://github.com/GuangchuangYu/ggtree/pull/165
      - https://github.com/GuangchuangYu/ggtree/pull/169
  - geom_tiplab2 works with mapping = aes(subset) defined by users
    (2018-02-24,
        Sta)
      - https://groups.google.com/d/msgid/bioc-ggtree/72e18c5b-0ce5-4c25-80fa-3e2dabda8f72%40googlegroups.com
  - fixed overlapping branch after flip
      - https://github.com/GuangchuangYu/ggtree/issues/167

                       Changes in version 1.11.5                        

  - support passing aes(subset) in geom_tippoint (2018-01-30, Tue)
  - support passing aes(subset) in geom_nodepoint (2018-01-26, Fri)
  - fine tune y position after flip; flip compatible with
        collapse
      - https://groups.google.com/d/msgid/bioc-ggtree/1d06342c-9645-4f71-9e66-7d7a7099bf0b%40googlegroups.com?utm_medium=email&utm_source=footer

                       Changes in version 1.11.4                        

  - re-implement collapse as collapse.ggtree method by importing
    dplyr::collapse generic to prevent function name collision
    (2018-01-03, Wed)
  - update treeVisualization vignette, with more layout examples added
    (2017-12-22, Fri)
  - update vignette (2017-12-21, Thu)
      - remove ggtreeUtilities.Rmd
      - merge treeAnnotation and advanceTreeAnnotation