diff --git a/08-collection-iteration-with-closures/projects/challenge/08-collection-iteration-with-closures-challenges.playground/Contents.swift b/08-collection-iteration-with-closures/projects/challenge/08-collection-iteration-with-closures-challenges.playground/Contents.swift
index 63b044b..cd16aa4 100644
--- a/08-collection-iteration-with-closures/projects/challenge/08-collection-iteration-with-closures-challenges.playground/Contents.swift
+++ b/08-collection-iteration-with-closures/projects/challenge/08-collection-iteration-with-closures-challenges.playground/Contents.swift
@@ -1,4 +1,4 @@
-/// Copyright (c) 2023 Kodeco LLC
+/// Copyright (c) 2025 Kodeco LLC
///
/// 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/08-collection-iteration-with-closures/projects/challenge/08-collection-iteration-with-closures-challenges.playground/contents.xcplayground b/08-collection-iteration-with-closures/projects/challenge/08-collection-iteration-with-closures-challenges.playground/contents.xcplayground
index 89da2d4..41f6c16 100644
--- a/08-collection-iteration-with-closures/projects/challenge/08-collection-iteration-with-closures-challenges.playground/contents.xcplayground
+++ b/08-collection-iteration-with-closures/projects/challenge/08-collection-iteration-with-closures-challenges.playground/contents.xcplayground
@@ -1,4 +1,2 @@
-
-
-
\ No newline at end of file
+
\ No newline at end of file
diff --git a/08-collection-iteration-with-closures/projects/challenge/08-collection-iteration-with-closures-mini-exercises.playground/Contents.swift b/08-collection-iteration-with-closures/projects/challenge/08-collection-iteration-with-closures-mini-exercises.playground/Contents.swift
index 67f94d5..7a0e0b7 100644
--- a/08-collection-iteration-with-closures/projects/challenge/08-collection-iteration-with-closures-mini-exercises.playground/Contents.swift
+++ b/08-collection-iteration-with-closures/projects/challenge/08-collection-iteration-with-closures-mini-exercises.playground/Contents.swift
@@ -1,4 +1,4 @@
-/// Copyright (c) 2023 Kodeco LLC
+/// Copyright (c) 2025 Kodeco LLC
///
/// 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/08-collection-iteration-with-closures/projects/challenge/08-collection-iteration-with-closures-mini-exercises.playground/contents.xcplayground b/08-collection-iteration-with-closures/projects/challenge/08-collection-iteration-with-closures-mini-exercises.playground/contents.xcplayground
index 9f5f2f4..41f6c16 100644
--- a/08-collection-iteration-with-closures/projects/challenge/08-collection-iteration-with-closures-mini-exercises.playground/contents.xcplayground
+++ b/08-collection-iteration-with-closures/projects/challenge/08-collection-iteration-with-closures-mini-exercises.playground/contents.xcplayground
@@ -1,4 +1,2 @@
-
-
-
\ No newline at end of file
+
\ No newline at end of file
diff --git a/08-collection-iteration-with-closures/projects/final/08-collection-iteration-with-closures.playground/Contents.swift b/08-collection-iteration-with-closures/projects/final/08-collection-iteration-with-closures.playground/Contents.swift
index f236a5b..39bb5d7 100644
--- a/08-collection-iteration-with-closures/projects/final/08-collection-iteration-with-closures.playground/Contents.swift
+++ b/08-collection-iteration-with-closures/projects/final/08-collection-iteration-with-closures.playground/Contents.swift
@@ -1,4 +1,4 @@
-/// Copyright (c) 2023 Kodeco LLC
+/// Copyright (c) 2025 Kodeco LLC
///
/// 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/08-collection-iteration-with-closures/projects/final/08-collection-iteration-with-closures.playground/contents.xcplayground b/08-collection-iteration-with-closures/projects/final/08-collection-iteration-with-closures.playground/contents.xcplayground
index 5da2641..41f6c16 100644
--- a/08-collection-iteration-with-closures/projects/final/08-collection-iteration-with-closures.playground/contents.xcplayground
+++ b/08-collection-iteration-with-closures/projects/final/08-collection-iteration-with-closures.playground/contents.xcplayground
@@ -1,4 +1,2 @@
-
-
-
\ No newline at end of file
+
\ No newline at end of file
diff --git a/08-collection-iteration-with-closures/projects/starter/.keep b/08-collection-iteration-with-closures/projects/starter/.keep
deleted file mode 100644
index e69de29..0000000