inst/NEWS.md

kableExtra 0.7.0

Now HTML table will be previewed in Viewer panel
Added HTML color code support to kableExtra
Added footnote as a more flexible replacement for add_footnote. Add_footnote will be kept maintained for a while.
Fixed bug #105: bold/italic/monospace cannot accept T/F as vector
Added extra_css to cell_spec, row_spec & column_spec
Fixed bug #88: add_footnote doesn't support full width
Added hline_after and extra_latex_after to row_spec #101
Improved warning message for kables not in html or latex
Added latex_hline to collapse_rows so users can choose from full, major or none
Added strikeout and underline to column_spec, row_spec and cell_spec.
Added extra_css to column_spec, row_spec and cell_spec.
Added a vignette about how to copy tables from HTML to Word.
Change some read_xml to read_html
Added scale_from to some spec_tools
Quite a few minor bug fixes

kableExtra 0.6.1

Added cell_spec for HTML & LaTeX
Added helper functions including spec_color, spec_font_size, spec_angle, spec_tooltip & spec_popover to facilitate the cell_spec function.
Added align/rotate/font_size to row_spec
Allowed row_spec to modify header row with row_spec(0, ...)
Improved repeat_header in LaTeX for longtables. Now you can write texts like "continued on next page"
Fixed a critical bug with latex group_rows (#68)
Escape question mark ? in regex_escape (thanks @nichtleiter)
Switched from readr::write_file to base::writeLines (for support in earlier version of readr)
Switched from sub to str_replace in some places due to a bug in sub on Windows.

Request from CRAN: Changed dependency on magick from Imports to Suggest. Added error message when users don't have magick installed.
Added argument index to group_rows so users can build multiple row groups in one step. The syntax is the same with add_header_above
Now row_spec and column_spec can take vectors so users can customized multiple row/columns at the same time.
Fixed a bug for kable_as_image on Windows. Improved documentations and error messages.

Added documentations about those color/background color options in column_spec and row_spec
Added the kableExtra_latex_packages function to quickly print all necessary LaTeX packages on the screen.
Hot fix a bug in full_width in LaTeX

Now column_spec & row_spec can customize font & cell background color with 2 new options color & background. Also, you can draw border lines using border_left or border_right when you are using column_spec.
Making it optional to pre-load LaTeX package on package startup
Adding documentations about dependencies on LaTeX packages and the auto-load behavior of kableExtra
Improved the look of full_width in kable_styling LaTeX and add tabu to LaTeX dependency
Added enc2utf8() to improve behavior in non-UTF8 machines.
Added HOLD_position, which uses LaTeX package float and H, for a stronger hold on table position. (Thanks @robshep)
Move conditional usepackage_latex() calls to zzz.R for more consistant behavior
Now you can change strip color for LaTeX tables.
Added support to tables with caption.short.
Added kable_as_image() for LaTeX tables. This function will render the LaTeX code snippet to a piece of standalone PDF file and then convert that to an image, which will then be included in the rmarkdown document, if the environment exists. It's useful for people who have a strong need of generating Word documents and producing well-formatted LaTeX table at the same time.
For both HTML & LaTeX, added escape option for add_footnote
Fixed a bug in LaTeX for the processing of the + sign
Fixed a bug with the [ symbol in escape_regex

Add scroll_box for HTML table for extremely long/wide tables
Fixed a bug in collapse_row on removing addlinespace
Removed addlinespace from group_rows
Added monospace to column_spec & row_spec
Lowered R version requirement to R 3.1.0
Added testthat (#28, thank you @wibeasley)
For all HTML table functions, changed reading method from xml2::read_xml to xml2::read_html plus some extra steps to avoid errors when HTML contents don't fulfill XHTML requirements (#24)
For all HTML table functions, improved exportation method to remove the XML declaration. (Stackoverflow: https://stackoverflow.com/questions/45262308/knit2wp-adds-text-with-kableextra)
Added repeat_header_method in kable_styling (#25)
Fixed a bug in position in kable_styling() (https://stackoverflow.com/questions/45378664/kableextra-rmarkdown-tables-aligning-grouping-row-labels-and-footnotes)
Improved striped line look on tables with multiple layers of header rows. (#31)
Added escape to add_header_above and group_rows
Added PDF vignette to the CRAN vignette folder

Improved the look of HTML grouped header row (again) by adding spaces between groups
Fixed a bug in grouped header row.
Fixed a bug in grouped rows: https://stackoverflow.com/questions/44360040/group-rows-function-in-kableextra-package-not-grouping-rows
Fixed a bug in grouped rows with ()[].
Added a new LaTeX option repeat_header in kable_styling for repeating header rows in a longtable environment.
Fixed a bug in add_header_above to allow special symbol in extra header rows.
Allow column_spec automatically align when width is specified.
Added bold/italic options to add_header_above.
Added collapse_rows to collapse repeated rows to multirow cell
Improve package-level documentation based on @wibeasley's suggestion