rmarkdown 2.27

• Provide a global option rmarkdown.files.suffix to configure the suffix of the directory for auxiliary files (thanks, @certara-tzweers, #2550). By default, this suffix is _files, which can cause HTML output files to be deleted automatically on Microsoft OneDrive or Google Drive. If that is the case for you, you may set a different suffix in your .Rprofile, e.g., options(rmarkdown.files.suffix = "_rmdfiles").

• Fix a regression in 2.26 regarding image paths post-processing in html_document_base(). Now absolute paths to image in the output directory (output_dir) are correctly made relative to the output directory again.

rmarkdown 2.26

• rmarkdown now requires knitr >= 1.43.

• Get rid of the superfluous warning in find_pandoc() (thanks, @jszhao, #2527).

• Removed the stringr dependency since it is used only once in the package and the equivalent base R code is simple enough (thanks, @etiennebacher, #2530).

• For the output format option fig_crop: auto, it will now use the same logic as in knitr to decide if cropping is possible (yihui/knitr#2246).

• Avoid corrupting input files by accident (thanks, @J-Moravec, #2534).

rmarkdown 2.25

• Fixed a bug that filenames beginning with - cause incorrect invocation of Pandoc (thanks, @mbaynton, #2503).

• Documented how to merge output_format_dependency() to the output format (thanks, @atusy, #2508).

• ioslides_presentation() now correctly works with new shiny 1.7.5 (thanks, @nicolasgaraycoa, #2514, @gadenbuie, #2516).

• Added a new argument metadata to the pre_knit function in output_format() so that users will have access to the YAML metadata of the input document before knitting it (#2485). Please note that if you define pre_knit for a custom output format, you are strongly recommended to leave a ... argument in pre_knit, so we (rmarkdown package authors) are free to add more arguments to pre_knit without breaking your code. If your pre_knit function does not have the ... argument, you will get a warning.

rmarkdown 2.24

• Fixed file_scope being lost when extending output formats that considers the file_scope using output_format(). Merge behavior is to apply overlay file_scope function onto the result of base_format's file_scope function. This implies that file_scope gains second argument which receives the returned values of the base file_scope (thanks, @atusy, #2488).

• Added output_format_dependency() which allows extending output format from within chunks (thanks, @atusy, #2462)

• Fix an issue with shiny prerendered document where dependencies context were written twice leasing to parsing error (thanks, @gadenbuie, rstudio/learn#597, #2500).

rmarkdown 2.23

• find_external_resources() works with formats defining there own theme argument, like cleanrmd::html_document_clean(), not related to bslib supports (thanks, @gadenbuie, #2493, r-lib/pkgdown#2319).

• Fixed version number comparison problems as requested by CRAN.

rmarkdown 2.22

• Using css with .scss and .sass file, or with a bslib theme, now works as expected with a shiny runtime (thanks, @cpsievert, #2443, #2447).

• Add a pandoc_metadata_file_arg() function to match Pandoc's CLI flag --metadata-file.

• Mentions that webshot or webshot2 is required to take screenshot of HTML widget. When not installed, an error message mentionning always_allow_html: true solution will be shown, but setting this is not the solution (quarto-dev/quarto-cli#4225).

• html_dependency_jqueryui() updated to 1.13.2 from version bundled in shiny (thanks, @daschnerm, #2477).

• Fix an issue with YAML header ending with a commented line containing incomplete yaml (thanks, @keithnewman, #2483).

• When code folding is enabled in html_document(), the text on the button to show the content has been changed from "Code" to "Show", because the content to show is not necessarily code, e.g., yihui/knitr#2227.

rmarkdown 2.21

• Now HTML output formats use the Font Awesome HTML dependency from the fontawesome package instead of shipping an outdated version of Font Awesome in rmarkdown (thanks, @rich-iannone, #2451).

• Fixed a bug caused by a change in the is_blank() function in xfun 0.38 (thanks, @andreahgsin, #2469).

rmarkdown 2.20

• The defunct tufte_handout() has been removed from rmarkdown. Please use tufte::tufte_handout() instead.

• If an input path to rmarkdown::render() is a symbolic link, it is no longer resolved to its real path (thanks, @SamDM @jmw86069, #1508).

• Make sure to avoid creating invalid paths when copying resources (thanks, @mnazarov, #2429).

• Make sure logo is properly embedded in ioslides_presentation() when self_contained = TRUE (thanks, @mnazarov, #2428).

rmarkdown 2.19

• No longer use xfun::isFALSE() internally.

rmarkdown 2.18

• rmarkdown::render() argument output_file is now used for all output formats, if there is only one name for multiple output formats (thanks, @MaelAstruc, #2421).

• Custom output formats can provide a custom function to convert Markdown input to the desired output format now. To do so, define the output format via output_format(pandoc = pandoc_options(convert_fun = function(...) {})). The default converting function is pandoc_convert() in this package. See the help page ?pandoc_options for more details.