# ggtree 1.17.1
 

 + `root.position` parameter for `fortify` and `ggtree` (2019-05-27, Mon)

 + `geom_facet`, a geom layer version of `facet_plot` (2019-05-23, Thu)

 + update `scale_x_ggtree`, now we can use `gheatmap() + scale_x_ggtree()` (2019-05-22, Wed)

 + extend `xlim_expand` to work with `ggplot2` (2019-05-20, Tue)
   - <https://yulab-smu.github.io/treedata-book/chapter9.html#xlim_expand>

 + add `legend_title` variable in `gheatmap` (2019-05-16, Thu)
 
 # ggtree 1.16.0
 
 + Bioconductor 3.9 release
 

 # ggtree 1.15.6
 

 + compatible with range is NULL in `geom_range` (2019-04-27, Sat)
   - <https://groups.google.com/d/msg/bioc-ggtree/yNzjtioVVGU/MCh3MPl_CwAJ>

 + 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.
 

 # ggtree 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)
 

 # ggtree 1.15.4
 
 + reimplement `MRCA` as a method inherited from `tidytree` (2019-01-10, Thu)
 + mv vignettes to [treedata-book](https://yulab-smu.github.io/treedata-book/) 
 

 # ggtree 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>
 

 # ggtree 1.15.2
 
 + compatible with `tibble` v=2.0.0 (2018-11-29, Thu)
 

 # ggtree 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>
   
 # ggtree 1.14.0
 
 + Bioconductor 3.8 release
 

 # ggtree 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>
   

 # ggtree 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>
   

 # ggtree 1.13.3
 
 + update `viewClade` according to the change of `ggplot2` (2018-08-07, Tue)
   - <https://github.com/GuangchuangYu/ggtree/issues/188>
   

 # ggtree 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>
 

 # ggtree 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](https://github.com/abichat)

 + compatible with ggplot2 2.2.1.9000 (2018-05-02, Wed)
   - incorporate newly introduce parameter `linejoin` and `arrow.fill` in `geom_segment`
 
 # ggtree 1.12.0
 
 + Bioconductor 3.7 release (2018-05-01, Tue)
 

 # ggtree 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>
 
 # ggtree 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>
 

 # ggtree 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