jabenninghoff · jabenninghoff · Jan 1, 2026 · Jan 1, 2026 · Jan 1, 2026 · Jan 1, 2026
diff --git a/DESCRIPTION b/DESCRIPTION
@@ -1,6 +1,6 @@
 Package: rdev
 Title: R Development Tools
-Version: 1.15.5
+Version: 1.15.6
 Authors@R:
     person("John", "Benninghoff", , "jbenninghoff@mac.com", role = c("aut", "cre"),
            comment = c(ORCID = "0000-0002-6230-4742"))
@@ -59,7 +59,7 @@ Suggests:
     xaringanExtra
 VignetteBuilder: 
     knitr
-Config/rdev/last-upkeep: 2025-10-24
+Config/rdev/last-upkeep: 2026-01-01
 Config/testthat/edition: 3
 Encoding: UTF-8
 Language: en-US

diff --git a/LICENSE b/LICENSE
@@ -1,2 +1,2 @@
-YEAR: 2025
+YEAR: 2026
 COPYRIGHT HOLDER: John Benninghoff
diff --git a/LICENSE.md b/LICENSE.md
@@ -1,6 +1,6 @@
 # MIT License
 
-Copyright (c) 2025 John Benninghoff
+Copyright (c) 2026 John Benninghoff
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

diff --git a/NEWS.md b/NEWS.md
@@ -1,3 +1,9 @@
+# rdev 1.15.6
+
+* Added instructions for YAML chunk syntax update to `upkeep_checklist()`
+
+* 2026 Upkeep
+
 # rdev 1.15.5
 
 * Added items for ggplot2 version 4 upgrade and switch to YAML chunk [options](https://yihui.org/knitr/options/) to `upkeep_checklist()`

diff --git a/R/upkeep.R b/R/upkeep.R
@@ -114,7 +114,16 @@ upkeep_checklist <- function(last_upkeep = last_upkeep_year()) { # nolint: cyclo
         "Update for ggplot2 [version 4](https://tidyverse.org/blog/2025/09/ggplot2-4-0-0/)",
         uses_ggplot2
       ),
-      todo("Switch to chunk option YAML [syntax](https://yihui.org/knitr/options/"),
+      todo("Switch to chunk option YAML [syntax](https://yihui.org/knitr/options/)"),
+      "",
+      "Update to YAML chunk syntax using:",
+      "",
+      "```",
+      paste0(
+        'lapply(list.files(pattern = "\\\\.Rmd$", recursive = TRUE), knitr::convert_chunk_header, ',
+        'output = identity, type = "yaml", width = 100)'
+      ),
+      "```",
       ""
     )
   }

diff --git a/README.md b/README.md
@@ -234,20 +234,20 @@ ci()
 #> * creating vignettes ... OK
 #> * checking for LF line-endings in source and make files and shell scripts
 #> * checking for empty or unneeded directories
-#> * building ‘rdev_1.15.5.tar.gz’
+#> * building ‘rdev_1.15.6.tar.gz’
 #> 
 #> ── R CMD check ─────────────────────────────────────────────────────────────────
-#> * using log directory ‘/private/var/folders/vn/cw5f9gws42v9m8mdsds_zbl00000gp/T/Rtmpqk420B/file11cd6e62afeb/rdev.Rcheck’
+#> * using log directory ‘/private/var/folders/vn/cw5f9gws42v9m8mdsds_zbl00000gp/T/RtmpqNxoSE/file820a21bb3a1a/rdev.Rcheck’
 #> * using R version 4.5.2 (2025-10-31)
 #> * using platform: aarch64-apple-darwin20
 #> * R was compiled by
 #>     Apple clang version 16.0.0 (clang-1600.0.26.6)
 #>     GNU Fortran (GCC) 14.2.0
-#> * running under: macOS Sequoia 15.7.2
+#> * running under: macOS Sequoia 15.7.3
 #> * using session charset: UTF-8
 #> * using option ‘--no-manual’
 #> * checking for file ‘rdev/DESCRIPTION’ ... OK
-#> * this is package ‘rdev’ version ‘1.15.5’
+#> * this is package ‘rdev’ version ‘1.15.6’
 #> * package encoding: UTF-8
 #> * checking package namespace information ... OK
 #> * checking package dependencies ... OK
@@ -302,8 +302,8 @@ ci()
 #> * DONE
 #> 
 #> Status: OK
-#> ── R CMD check results ──────────────────────────────────────── rdev 1.15.5 ────
-#> Duration: 28.9s
+#> ── R CMD check results ──────────────────────────────────────── rdev 1.15.6 ────
+#> Duration: 26.8s
 #> 
 #> 0 errors ✔ | 0 warnings ✔ | 0 notes ✔
 ```
diff --git a/docs/404.html b/docs/404.html
diff --git a/docs/LICENSE-text.html b/docs/LICENSE-text.html
diff --git a/docs/LICENSE.html b/docs/LICENSE.html
diff --git a/docs/TODO.html b/docs/TODO.html
diff --git a/docs/articles/analysis-package-layout.html b/docs/articles/analysis-package-layout.html
diff --git a/docs/articles/index.html b/docs/articles/index.html
diff --git a/docs/articles/rdev.html b/docs/articles/rdev.html
diff --git a/docs/articles/style-guide.html b/docs/articles/style-guide.html
diff --git a/docs/authors.html b/docs/authors.html
diff --git a/docs/index.html b/docs/index.html
diff --git a/docs/news/index.html b/docs/news/index.html
diff --git a/docs/pkgdown.yml b/docs/pkgdown.yml
@@ -5,7 +5,7 @@ articles:
   analysis-package-layout: analysis-package-layout.html
   rdev: rdev.html
   style-guide: style-guide.html
-last_built: 2025-12-07T01:08Z
+last_built: 2026-01-01T17:24Z
 urls:
   reference: https://jabenninghoff.github.io/rdev/reference
   article: https://jabenninghoff.github.io/rdev/articles
diff --git a/docs/reference/build_analysis_site.html b/docs/reference/build_analysis_site.html
diff --git a/docs/reference/build_quarto_site.html b/docs/reference/build_quarto_site.html
diff --git a/docs/reference/build_rdev_site.html b/docs/reference/build_rdev_site.html
diff --git a/docs/reference/check_renv.html b/docs/reference/check_renv.html
diff --git a/docs/reference/ci.html b/docs/reference/ci.html
diff --git a/docs/reference/create_github_repo.html b/docs/reference/create_github_repo.html
diff --git a/docs/reference/deps_check.html b/docs/reference/deps_check.html
diff --git a/docs/reference/get_license.html b/docs/reference/get_license.html