diff --git a/LICENSE b/LICENSE
index c4ac3ad8e..711d08072 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,2 +1,2 @@
-YEAR: 2018-2025
+YEAR: 2018-2026
 COPYRIGHT HOLDER: Posit Software, PBC
diff --git a/LICENSE.md b/LICENSE.md
index cb6e4b8bc..d99941329 100644
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -1,6 +1,6 @@
 # MIT License
 
-Copyright (c) 2018-2025 Posit Software, PBC
+Copyright (c) 2018-2026 Posit Software, PBC
 
 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/R/as_data_frame.R b/R/as_data_frame.R
index c3621cc03..1da437a25 100644
--- a/R/as_data_frame.R
+++ b/R/as_data_frame.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/build_data.R b/R/build_data.R
index dcd00194d..fa663fae6 100644
--- a/R/build_data.R
+++ b/R/build_data.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
@@ -98,10 +98,10 @@ build_data <- function(data, context) {
 # for vec_*() functions
 # only build the body correctly.
 build_data_body <- function(data, context) {
-  
+
   data <- dt_body_build(data = data)
   data <- render_formats(data = data, skip_compat_check = TRUE, context = context)
   data <- migrate_unformatted_to_output(data = data, context = context)
-  
+
   data
 }
diff --git a/R/cols_add.R b/R/cols_add.R
index 5f8ddedb7..93aaa455c 100644
--- a/R/cols_add.R
+++ b/R/cols_add.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/cols_align.R b/R/cols_align.R
index eda21224b..1eec39751 100644
--- a/R/cols_align.R
+++ b/R/cols_align.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/cols_align_decimal.R b/R/cols_align_decimal.R
index 0072995b0..bbddabd29 100644
--- a/R/cols_align_decimal.R
+++ b/R/cols_align_decimal.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/cols_hide.R b/R/cols_hide.R
index ef2688fbd..ac3e220a4 100644
--- a/R/cols_hide.R
+++ b/R/cols_hide.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/cols_label.R b/R/cols_label.R
index ffd4dfebb..111446a64 100644
--- a/R/cols_label.R
+++ b/R/cols_label.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/cols_merge.R b/R/cols_merge.R
index c4b0787f0..eb4411e49 100644
--- a/R/cols_merge.R
+++ b/R/cols_merge.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/cols_move.R b/R/cols_move.R
index a5ac90cc8..b95df4cf7 100644
--- a/R/cols_move.R
+++ b/R/cols_move.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/cols_units.R b/R/cols_units.R
index 8a87e1e0d..e6de389d1 100644
--- a/R/cols_units.R
+++ b/R/cols_units.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/cols_width.R b/R/cols_width.R
index 9afcb3755..53c14802a 100644
--- a/R/cols_width.R
+++ b/R/cols_width.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/compile_scss.R b/R/compile_scss.R
index d75677372..19c781e22 100644
--- a/R/compile_scss.R
+++ b/R/compile_scss.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/data_color.R b/R/data_color.R
index aa674e598..43acdf1da 100644
--- a/R/data_color.R
+++ b/R/data_color.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/datasets.R b/R/datasets.R
index d482ab121..ba814dd4e 100644
--- a/R/datasets.R
+++ b/R/datasets.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/dt__.R b/R/dt__.R
index d84b36566..29d74b37b 100644
--- a/R/dt__.R
+++ b/R/dt__.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/dt_body.R b/R/dt_body.R
index d95643032..64cd73b11 100644
--- a/R/dt_body.R
+++ b/R/dt_body.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/dt_boxhead.R b/R/dt_boxhead.R
index bf2b0663e..c729bd1af 100644
--- a/R/dt_boxhead.R
+++ b/R/dt_boxhead.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/dt_cols_merge.R b/R/dt_cols_merge.R
index d25d3a4fd..512d6469a 100644
--- a/R/dt_cols_merge.R
+++ b/R/dt_cols_merge.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/dt_data.R b/R/dt_data.R
index 29a2e8912..8e51a4dc0 100644
--- a/R/dt_data.R
+++ b/R/dt_data.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/dt_footnotes.R b/R/dt_footnotes.R
index 63832c474..aadca25fb 100644
--- a/R/dt_footnotes.R
+++ b/R/dt_footnotes.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/dt_formats.R b/R/dt_formats.R
index 80ae9fe9d..771017644 100644
--- a/R/dt_formats.R
+++ b/R/dt_formats.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/dt_groups_rows.R b/R/dt_groups_rows.R
index 8a397206e..2efd202c4 100644
--- a/R/dt_groups_rows.R
+++ b/R/dt_groups_rows.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/dt_has_built.R b/R/dt_has_built.R
index aca2e4f4e..4896ac9b3 100644
--- a/R/dt_has_built.R
+++ b/R/dt_has_built.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/dt_heading.R b/R/dt_heading.R
index 4ef89519a..9e39c9e3a 100644
--- a/R/dt_heading.R
+++ b/R/dt_heading.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/dt_locale.R b/R/dt_locale.R
index ad816d97a..8d400980b 100644
--- a/R/dt_locale.R
+++ b/R/dt_locale.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/dt_options.R b/R/dt_options.R
index 0a8ba2b4d..d324d5726 100644
--- a/R/dt_options.R
+++ b/R/dt_options.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/dt_row_groups.R b/R/dt_row_groups.R
index 2c491abed..fc7a06f70 100644
--- a/R/dt_row_groups.R
+++ b/R/dt_row_groups.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/dt_source_notes.R b/R/dt_source_notes.R
index ad15591ef..818859c6a 100644
--- a/R/dt_source_notes.R
+++ b/R/dt_source_notes.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/dt_spanners.R b/R/dt_spanners.R
index 38b1ca6ab..2689e2410 100644
--- a/R/dt_spanners.R
+++ b/R/dt_spanners.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/dt_stub_df.R b/R/dt_stub_df.R
index faac62b19..c163c4c16 100644
--- a/R/dt_stub_df.R
+++ b/R/dt_stub_df.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
@@ -68,38 +68,38 @@ dt_stub_df_init <- function(
 
     # For multiple columns, we need to handle them as a hierarchy
     if (length(rowname_col) > 1) {
-      
+
       # Set all columns as stub columns in the boxhead
       for (col in rowname_col) {
         data <- dt_boxhead_set_stub(data = data, var = col)
       }
-      
+
       # Reorder the boxhead to match the order specified in rowname_col
       # This ensures stub columns appear in the order the user specified
       dt_boxhead <- dt_boxhead_get(data = data)
-      
+
       # Split boxhead into stub and non-stub rows
       stub_rows <- dt_boxhead[dt_boxhead$var %in% rowname_col, ]
       non_stub_rows <- dt_boxhead[!dt_boxhead$var %in% rowname_col, ]
-      
+
       # Reorder stub rows to match rowname_col order
       stub_rows <- stub_rows[match(rowname_col, stub_rows$var), ]
-      
+
       # Combine: stub rows first (in specified order), then non-stub rows
       dt_boxhead <- rbind(stub_rows, non_stub_rows)
       rownames(dt_boxhead) <- NULL
-      
+
       # Update the boxhead
       data <- dt_boxhead_set(data = data, boxh = dt_boxhead)
-      
+
       # Use the rightmost column as the primary row ID
       rightmost_col <- rowname_col[length(rowname_col)]
       rownames <- data_tbl[[rightmost_col]]
       row_id <- create_unique_id_vals(rownames, simplify = process_md)
-      
+
       # Place the `row_id` values into `stub_df$row_id`
       stub_df[["row_id"]] <- row_id
-      
+
     } else {
       # Original single column logic
       data <- dt_boxhead_set_stub(data = data, var = rowname_col)
diff --git a/R/dt_stubhead.R b/R/dt_stubhead.R
index a5faabfc5..ff87098f5 100644
--- a/R/dt_stubhead.R
+++ b/R/dt_stubhead.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/dt_styles.R b/R/dt_styles.R
index 9a56c69d9..e6b7d54a7 100644
--- a/R/dt_styles.R
+++ b/R/dt_styles.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/dt_substitutions.R b/R/dt_substitutions.R
index 2e03e8deb..dfb4eaeaf 100644
--- a/R/dt_substitutions.R
+++ b/R/dt_substitutions.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/dt_summary.R b/R/dt_summary.R
index d6594c5df..b9d947b3e 100644
--- a/R/dt_summary.R
+++ b/R/dt_summary.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/dt_summary_cols.R b/R/dt_summary_cols.R
index 6e212f8d1..33bf65eea 100644
--- a/R/dt_summary_cols.R
+++ b/R/dt_summary_cols.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/dt_transforms.R b/R/dt_transforms.R
index ff9922132..d1ffdcf42 100644
--- a/R/dt_transforms.R
+++ b/R/dt_transforms.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/export.R b/R/export.R
index 103de1a20..bcdd3aaa6 100644
--- a/R/export.R
+++ b/R/export.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/extract.R b/R/extract.R
index a7e43fcb2..171718335 100644
--- a/R/extract.R
+++ b/R/extract.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/fmt.R b/R/fmt.R
index 962036405..96701a38d 100644
--- a/R/fmt.R
+++ b/R/fmt.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
@@ -615,7 +615,7 @@ format_num_to_str <- function(
     # threshold=2: 10^4 (10000, 5 digits)
     # threshold=3: 10^5 (100000, 6 digits)
     magnitude_threshold <- 10^(min_sep_threshold + 2)
-    
+
     # Format all values first to determine their rounded magnitudes
     # We need to check rounded values because 999.5 with 0 decimals becomes "1000"
     # Suppress warnings when both big.mark and decimal.mark are empty strings
@@ -632,7 +632,7 @@ format_num_to_str <- function(
           decimal.mark = dec_mark
         )
       )
-    
+
     # Parse formatted strings to get rounded magnitudes
     # Handle both empty and non-empty dec_mark
     if (nzchar(dec_mark)) {
@@ -640,15 +640,15 @@ format_num_to_str <- function(
     } else {
       x_rounded <- suppressWarnings(as.numeric(x_str_test))
     }
-    
+
     # Determine which values should have separators based on rounded magnitude
     should_use_sep <- abs(x_rounded) >= magnitude_threshold
-    
+
     # Format values below threshold without separators (reuse test formatting)
     if (any(!should_use_sep, na.rm = TRUE)) {
       x_str_no_sep <- x_str_test[!should_use_sep]
     }
-    
+
     # Format values at or above threshold with separators
     # Suppress warnings when both big.mark and decimal.mark are empty strings
     if (any(should_use_sep, na.rm = TRUE)) {
@@ -666,7 +666,7 @@ format_num_to_str <- function(
           )
         )
     }
-    
+
     # Combine the results
     x_str <- character(length(x))
     if (any(!should_use_sep, na.rm = TRUE)) {
@@ -675,7 +675,7 @@ format_num_to_str <- function(
     if (any(should_use_sep, na.rm = TRUE)) {
       x_str[should_use_sep] <- x_str_sep
     }
-    
+
   } else {
     # No min_sep_threshold, use original behavior with separators
     # Suppress warnings when both big.mark and decimal.mark are empty strings
diff --git a/R/fmt_date_time.R b/R/fmt_date_time.R
index a7241504c..9b70ceaed 100644
--- a/R/fmt_date_time.R
+++ b/R/fmt_date_time.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/fmt_number.R b/R/fmt_number.R
index 59ada8971..1472269ca 100644
--- a/R/fmt_number.R
+++ b/R/fmt_number.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/format_data.R b/R/format_data.R
index 346f5958b..4dd5b9dc2 100644
--- a/R/format_data.R
+++ b/R/format_data.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/format_vec.R b/R/format_vec.R
index 86daa74eb..2350eccdf 100644
--- a/R/format_vec.R
+++ b/R/format_vec.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/gt-package.R b/R/gt-package.R
index b5a422b63..4991e501d 100644
--- a/R/gt-package.R
+++ b/R/gt-package.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/gt.R b/R/gt.R
index f1fcc2519..75f0da034 100644
--- a/R/gt.R
+++ b/R/gt.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/gt_group.R b/R/gt_group.R
index a75c98594..3a84b233a 100644
--- a/R/gt_group.R
+++ b/R/gt_group.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/gt_preview.R b/R/gt_preview.R
index 48b0820e9..08d276d58 100644
--- a/R/gt_preview.R
+++ b/R/gt_preview.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/gt_split.R b/R/gt_split.R
index a56d22215..73d072b6b 100644
--- a/R/gt_split.R
+++ b/R/gt_split.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/gtsave.R b/R/gtsave.R
index ca1386ecf..5cba3c709 100644
--- a/R/gtsave.R
+++ b/R/gtsave.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/helpers.R b/R/helpers.R
index df22c2439..70983e54d 100644
--- a/R/helpers.R
+++ b/R/helpers.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/image.R b/R/image.R
index 07394d584..153d2dd38 100644
--- a/R/image.R
+++ b/R/image.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/info_tables.R b/R/info_tables.R
index 68192d57b..439fbd97c 100644
--- a/R/info_tables.R
+++ b/R/info_tables.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/knitr-utils.R b/R/knitr-utils.R
index 8008d70b7..b8dcb3192 100644
--- a/R/knitr-utils.R
+++ b/R/knitr-utils.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
@@ -23,7 +23,7 @@
 
 # The functions below are adapted from the knitr package
 # (https://github.com/yihui/knitr), which is licensed under GPL-2 or later.
-# Copyright (c) 2012-2025 Yihui Xie
+# Copyright (c) 2012-2026 Yihui Xie
 # Original source: https://github.com/yihui/knitr/blob/main/R/utils.R
 #
 # These functions are copies of unexported functions from knitr and are
diff --git a/R/location_methods.R b/R/location_methods.R
index 017db11d6..793018ff3 100644
--- a/R/location_methods.R
+++ b/R/location_methods.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/modify_rows.R b/R/modify_rows.R
index 728f85360..16208735d 100644
--- a/R/modify_rows.R
+++ b/R/modify_rows.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/nanoplot.R b/R/nanoplot.R
index f958f302b..1121e3162 100644
--- a/R/nanoplot.R
+++ b/R/nanoplot.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/opts.R b/R/opts.R
index 7435f9bc7..83be71e85 100644
--- a/R/opts.R
+++ b/R/opts.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/print.R b/R/print.R
index aa1d78522..6ad107cab 100644
--- a/R/print.R
+++ b/R/print.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/quarto.R b/R/quarto.R
index b170675e9..4980a9338 100644
--- a/R/quarto.R
+++ b/R/quarto.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/reexports.R b/R/reexports.R
index c5f088db7..4226250e8 100644
--- a/R/reexports.R
+++ b/R/reexports.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/render_as_html.R b/R/render_as_html.R
index 9f8ed38f4..d3a15c17c 100644
--- a/R/render_as_html.R
+++ b/R/render_as_html.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/render_as_i_html.R b/R/render_as_i_html.R
index 122276ce7..b295b73d4 100644
--- a/R/render_as_i_html.R
+++ b/R/render_as_i_html.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/resolver.R b/R/resolver.R
index ce7d6ea17..04fac34cc 100644
--- a/R/resolver.R
+++ b/R/resolver.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
@@ -436,11 +436,11 @@ resolve_cols_i <- function(
       stub_var <- dt_boxhead_get_var_stub(data = data)
 
       if (!is.null(stub_var) && !all(is.na(stub_var))) {
-        
+
         # Evaluate the stub() expression to get the column parameter if any
         stub_result <- rlang::eval_tidy(quo)
         column_idx <- attr(stub_result, "column")
-        
+
         # If column index is specified, select that specific stub column
         # (1 = rightmost, 2 = second from right, etc.)
         if (!is.null(column_idx)) {
@@ -450,7 +450,7 @@ resolve_cols_i <- function(
               "The {.arg column} argument in {.fn stub} must be a single positive integer."
             )
           }
-          
+
           # Check if the requested column exists
           if (column_idx > length(stub_var)) {
             cli::cli_abort(c(
@@ -458,13 +458,13 @@ resolve_cols_i <- function(
               "i" = "This table has {length(stub_var)} stub column{?s}."
             ))
           }
-          
+
           # Select from right to left (1 = rightmost)
           selected_stub_var <- stub_var[length(stub_var) - column_idx + 1]
           stub_col <- 1
           names(stub_col) <- selected_stub_var
           return(stub_col)
-          
+
         } else {
           # No column specified, return all stub columns
           stub_col <- seq_along(stub_var)
diff --git a/R/rows_add.R b/R/rows_add.R
index 85e8aace8..6a64ecc98 100644
--- a/R/rows_add.R
+++ b/R/rows_add.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/shiny.R b/R/shiny.R
index 7d200f696..f5b64f94e 100644
--- a/R/shiny.R
+++ b/R/shiny.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/substitution.R b/R/substitution.R
index 450467643..9d6e95147 100644
--- a/R/substitution.R
+++ b/R/substitution.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/summary_columns.R b/R/summary_columns.R
index 6032c1a1a..e4d8d080b 100644
--- a/R/summary_columns.R
+++ b/R/summary_columns.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/summary_rows.R b/R/summary_rows.R
index e4ea8252e..bd6c8bc29 100644
--- a/R/summary_rows.R
+++ b/R/summary_rows.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/tab_create_modify.R b/R/tab_create_modify.R
index 462821ac3..d03c4675e 100644
--- a/R/tab_create_modify.R
+++ b/R/tab_create_modify.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
@@ -1774,10 +1774,10 @@ tab_row_group <- function(
 #'
 #'   `vector<character>` // **required**
 #'
-#'   The text to be used as the stubhead label(s). For tables with multi-column 
-#'   stubs, you can provide either a single label that spans all stub columns, or 
-#'   a vector of labels with one label for each stub column. We can optionally use 
-#'   [md()] or [html()] to style the text as Markdown or to retain HTML elements 
+#'   The text to be used as the stubhead label(s). For tables with multi-column
+#'   stubs, you can provide either a single label that spans all stub columns, or
+#'   a vector of labels with one label for each stub column. We can optionally use
+#'   [md()] or [html()] to style the text as Markdown or to retain HTML elements
 #'   in the text.
 #'
 #' @return An object of class `gt_tbl`.
@@ -1914,7 +1914,7 @@ tab_stubhead <- function(
 
   # Validate the label parameter for multi-column stubs
   stub_vars <- dt_boxhead_get_var_stub(data = data)
-  
+
   if (length(stub_vars) > 1 && !any(is.na(stub_vars))) {
     # Multi-column stub case
     if (length(label) > 1) {
diff --git a/R/tab_footnote.R b/R/tab_footnote.R
index 579ce0418..96900a04c 100644
--- a/R/tab_footnote.R
+++ b/R/tab_footnote.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/tab_info.R b/R/tab_info.R
index eded405d8..57eb3dbf1 100644
--- a/R/tab_info.R
+++ b/R/tab_info.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/tab_options.R b/R/tab_options.R
index 64a874a83..ae278c2ea 100644
--- a/R/tab_options.R
+++ b/R/tab_options.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/tab_remove.R b/R/tab_remove.R
index 9bb587d06..0e33fada6 100644
--- a/R/tab_remove.R
+++ b/R/tab_remove.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/tab_style.R b/R/tab_style.R
index 5c61462c8..69a53c781 100644
--- a/R/tab_style.R
+++ b/R/tab_style.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
@@ -847,11 +847,11 @@ set_style.cells_stub <- function(loc, data, style) {
 
   # Get all stub variables for reference
   stub_vars <- dt_boxhead_get_var_stub(data = data)
-  
-  # Check if this is traditional usage (no columns parameter) 
+
+  # Check if this is traditional usage (no columns parameter)
   # vs. new usage (explicit columns parameter provided)
   is_traditional_usage <- is.null(loc$columns)
-  
+
   if (is_traditional_usage) {
     # For backward compatibility: traditional cells_stub() usage without columns parameter
     # Use the original "stub" locname for compatibility with existing code
@@ -873,7 +873,7 @@ set_style.cells_stub <- function(loc, data, style) {
         columns <- stub_vars
       }
     }
-    
+
     # Apply styling to each specified stub column using stub_column locname
     for (col in columns) {
       data <-
diff --git a/R/tab_style_body.R b/R/tab_style_body.R
index f770111fd..308ae9190 100644
--- a/R/tab_style_body.R
+++ b/R/tab_style_body.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/text_transform.R b/R/text_transform.R
index 72b92a361..fba55e97c 100644
--- a/R/text_transform.R
+++ b/R/text_transform.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/topics.R b/R/topics.R
index 97a4246ba..e2a00c735 100644
--- a/R/topics.R
+++ b/R/topics.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/utils.R b/R/utils.R
index 17657b5fd..f5adba637 100644
--- a/R/utils.R
+++ b/R/utils.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/utils_color_contrast.R b/R/utils_color_contrast.R
index 48fe40182..719f2e3ff 100644
--- a/R/utils_color_contrast.R
+++ b/R/utils_color_contrast.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/utils_environments.R b/R/utils_environments.R
index 89f445f80..18f478288 100644
--- a/R/utils_environments.R
+++ b/R/utils_environments.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/utils_examples.R b/R/utils_examples.R
index 542afacc1..8f789a2bb 100644
--- a/R/utils_examples.R
+++ b/R/utils_examples.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/utils_general_str_formatting.R b/R/utils_general_str_formatting.R
index 71e3cd3be..cc945aa11 100644
--- a/R/utils_general_str_formatting.R
+++ b/R/utils_general_str_formatting.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/utils_plots.R b/R/utils_plots.R
index 63fbc3255..3759495fd 100644
--- a/R/utils_plots.R
+++ b/R/utils_plots.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/utils_render_common.R b/R/utils_render_common.R
index fd3846239..4b927bf31 100644
--- a/R/utils_render_common.R
+++ b/R/utils_render_common.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
@@ -842,13 +842,13 @@ summary_row_side <- function(data, group_id) {
 
 # Get the number of columns in the stub for layout purposes
 get_stub_column_count <- function(data) {
-  
+
   stub_layout <- get_stub_layout(data = data)
-  
+
   if (is.null(stub_layout)) {
     return(0)
   }
-  
+
   # Check if we have "rowname" in the layout
   if ("rowname" %in% stub_layout) {
     # Check if there are multiple stub columns
@@ -859,7 +859,7 @@ get_stub_column_count <- function(data) {
       return(length(stub_vars) + group_count)
     }
   }
-  
+
   # Default: return the length of the layout (original behavior)
   return(length(stub_layout))
 }
diff --git a/R/utils_render_grid.R b/R/utils_render_grid.R
index 3a072e9ab..8908214ae 100644
--- a/R/utils_render_grid.R
+++ b/R/utils_render_grid.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/utils_render_html.R b/R/utils_render_html.R
index a1bf25868..0e4f16cd4 100644
--- a/R/utils_render_html.R
+++ b/R/utils_render_html.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
@@ -2495,7 +2495,7 @@ calculate_hierarchical_stub_rowspans <- function(data) {
       # Must match current column value (handle NAs properly)
       curr_val <- col_values[row_idx]
       prev_val <- col_values[row_idx - 1]
-      
+
       # Two values match if they're both identical or both NA
       if (!identical(curr_val, prev_val)) {
         should_continue_span <- FALSE
diff --git a/R/utils_render_latex.R b/R/utils_render_latex.R
index 9890b80e7..ad34f7ec0 100644
--- a/R/utils_render_latex.R
+++ b/R/utils_render_latex.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/utils_render_rtf.R b/R/utils_render_rtf.R
index d1eec470f..d27cb158a 100644
--- a/R/utils_render_rtf.R
+++ b/R/utils_render_rtf.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
@@ -1236,7 +1236,7 @@ create_columns_component_rtf <- function(data) {
     stub_vars <- dt_boxhead_get_var_stub(data = data)
     has_multi_column_stub <- length(stub_vars) > 1 && !any(is.na(stub_vars))
     has_multiple_labels <- has_multi_column_stub && length(stubh$label) > 1
-    
+
     if (has_multiple_labels) {
       # Add individual headers for each stub column
       headings_labels <- prepend_vec(headings_labels, stubh$label)
@@ -1267,7 +1267,7 @@ create_columns_component_rtf <- function(data) {
     stub_vars <- dt_boxhead_get_var_stub(data = data)
     has_multi_column_stub <- length(stub_vars) > 1 && !any(is.na(stub_vars))
     has_multiple_labels <- has_multi_column_stub && length(stubh$label) > 1
-    
+
     # Only merge if we have a single label spanning multiple columns
     if (!has_multiple_labels && length(stub_layout) > 1) {
       # Create merge keys for the stub columns
@@ -1495,19 +1495,19 @@ create_body_component_rtf <- function(data) {
   # Apply hierarchical stub merging for multiple stub columns
   # (hide repeated values in all columns except the rightmost)
   has_stub_column <- "rowname" %in% stub_layout
-  
+
   if (has_stub_column) {
     stub_vars <- dt_boxhead_get_var_stub(data = data)
-    
+
     if (length(stub_vars) > 1 && !any(is.na(stub_vars))) {
 
       # Get original body data to check for consecutive repeating values
       original_body <- dt_data_get(data = data)
-      
+
       # Process all stub columns except the rightmost one
       hierarchy_vars <- stub_vars[-length(stub_vars)]
       stub_matrix <- as.matrix(original_body[, hierarchy_vars, drop = FALSE])
-      
+
       # Determine which columns to hide based on hierarchical grouping
       for (col_idx in seq_along(hierarchy_vars)) {
 
@@ -1516,15 +1516,15 @@ create_body_component_rtf <- function(data) {
         if ("group_label" %in% stub_layout) {
           matrix_col_idx <- col_idx + 1
         }
-        
+
         for (row_idx in 2:n_rows) {
           should_hide <- TRUE
-          
+
           # Check if current value matches previous value
           if (stub_matrix[row_idx, col_idx] != stub_matrix[row_idx - 1, col_idx]) {
             should_hide <- FALSE
           }
-          
+
           # Also check that all columns to the left match
           if (should_hide && col_idx > 1) {
             for (left_col_idx in 1:(col_idx - 1)) {
@@ -1534,7 +1534,7 @@ create_body_component_rtf <- function(data) {
               }
             }
           }
-          
+
           # Hide the value by making it empty if conditions are met
           if (should_hide) {
             cell_matrix[[row_idx, matrix_col_idx]] <- ""
diff --git a/R/utils_render_xml.R b/R/utils_render_xml.R
index ea9e110d6..ca89da601 100644
--- a/R/utils_render_xml.R
+++ b/R/utils_render_xml.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/utils_units.R b/R/utils_units.R
index 5340d3612..fed5da672 100644
--- a/R/utils_units.R
+++ b/R/utils_units.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/z_utils_render_footnotes.R b/R/z_utils_render_footnotes.R
index 2f9a5a0f3..752f3ab04 100644
--- a/R/z_utils_render_footnotes.R
+++ b/R/z_utils_render_footnotes.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html
diff --git a/R/zzz.R b/R/zzz.R
index 5273979db..e2d02b3e6 100644
--- a/R/zzz.R
+++ b/R/zzz.R
@@ -14,7 +14,7 @@
 #
 #  This file is part of the 'rstudio/gt' project.
 #
-#  Copyright (c) 2018-2025 gt authors
+#  Copyright (c) 2018-2026 gt authors
 #
 #  For full copyright and license information, please look at
 #  https://gt.rstudio.com/LICENSE.html