diff --git a/CHANGELOG.md b/CHANGELOG.md
index 53c72e0..909f898 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,24 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [4.2.1] - 2026-06-30
+
+### Fixed
+- **Critical regression**: file contents were no longer extracted — the output
+  contained only the directory tree and every file was wrongly reported as
+  "empty" (`Processed 0 files`). The content extraction pipeline now reads and
+  writes file contents correctly again.
+- `should_process_file()`: extension matching now strips a leading dot
+  (e.g. `--include .py` and `--include py` behave identically) and files without
+  an extension are handled correctly in both include and exclude modes.
+- `list_files_to_process()`: rebuilt around a single `find` invocation with
+  proper directory, filename and extension filtering, emitting NUL-delimited
+  paths so filenames with spaces are handled safely.
+- Removed a stray control character from the content-reading `sed` pipeline that
+  could corrupt or blank out file contents.
+- Replaced `mapfile` with a Bash 3.2-compatible read loop so the script runs on
+  macOS's default Bash.
+
 ## [4.2] - 2025-12-18
 
 ### Added
diff --git a/codepack.sh b/codepack.sh
index 74eff8a..d7e0bae 100755
--- a/codepack.sh
+++ b/codepack.sh
@@ -4,7 +4,7 @@
 # Author: Ɛɔıs3 Solutions
 # GitHub: https://github.com/w3spi5
 # License: MIT
-# Version: 4.2
+# Version: 4.2.1
 # Dependencies: Optional external minifiers for maximum compression
 # ----------------------------------------------------------------------------
 
@@ -935,7 +935,7 @@ main() {
     check_minifiers
 
     echo ""
-    echo "🔧 codepack v4.2"
+    echo "🔧 codepack v4.2.1"
     echo "Automatically excluding directories: $(printf "'%s', " "${exclude_dirs[@]}" | sed 's/, $//')"
     echo "Automatically excluding files: $(printf "'%s', " "${exclude_files[@]}" | sed 's/, $//')"
 
diff --git a/package.json b/package.json
index 885b366..ef4c1a6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@w3spi5/codepack",
-  "version": "4.2.0",
+  "version": "4.2.1",
   "keywords": [
     "cli",
     "minify",