Update documentation for version 1.4.2 build system fixes

- Updated CHANGELOG.md with comprehensive build system fixes documentation
- Updated README.md with version 1.4.2 changelog information
- Updated DOCUMENTATION.md with build system improvements
- Documented all Debian package build fixes and enhancements
- Added details about binary reuse, error handling, and build efficiency improvements

CHANGELOG.md

@@ -5,6 +5,35 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [1.4.2] - 2025-09-13
+
+### Fixed
+- **Debian Package Build System**: Comprehensive fixes for wsssh-server package building
+  - Fixed Makefile syntax error in debian/rules by replacing here document with echo commands
+  - Resolved "missing separator" error caused by tab characters in PyInstaller spec generation
+  - Removed redundant debian/compat file causing debhelper compatibility conflicts
+  - Added automatic directory creation in install target to prevent "No such file or directory" errors
+  - Implemented binary reuse logic to avoid unnecessary rebuilds of wssshd binary
+  - Enhanced build efficiency by copying existing binaries from dist/ directory when available
+
+- **Build Script Improvements**: Enhanced --server-only option functionality
+  - Fixed --server-only to automatically enable Debian package building
+  - Updated build logic to properly build wsssh-server package when --server-only is used
+  - Improved output messages to show wsssh-server package status
+  - Added proper dependency checking and error reporting for Debian builds
+
+### Technical Details
+- **Makefile Fixes**: Replaced problematic here document with individual echo commands to avoid tab interpretation issues
+- **Binary Reuse**: Added logic to check for existing wssshd binary and copy instead of rebuild
+- **Directory Management**: Ensured all necessary directories are created before file installation
+- **Debhelper Compatibility**: Removed conflicting compat file specification
+- **Build Efficiency**: Reduced build times by reusing existing binaries when possible
+
+### Changed
+- **Build System**: --server-only option now properly builds wsssh-server Debian package
+- **Package Building**: More robust error handling and directory creation
+- **Binary Management**: Intelligent reuse of existing build artifacts
+
 ## [1.4.1] - 2025-09-13
 
 ### Added

DOCUMENTATION.md

@@ -732,6 +732,8 @@ man wssshd
 - Secure daemon operation with minimal privileges
 - **Watchdog Monitoring**: Automatic daemon restart and high availability
 - **Enterprise Reliability**: Professional process supervision and monitoring
+- **Build System Fixes**: Robust Debian package building with binary reuse
+- **Error Handling**: Comprehensive error handling for build failures
 
 #### Clean Build Artifacts
 ```bash

README.md

@@ -549,7 +549,23 @@ Your support helps us continue developing and maintaining this open-source proje
 
 ## Changelog
 
-### Version 1.4.1 (Latest)
+### Version 1.4.2 (Latest)
+- **Debian Package Build System Fixes**: Comprehensive fixes for wsssh-server package building
+  - Fixed Makefile syntax error in debian/rules by replacing here document with echo commands
+  - Resolved "missing separator" error caused by tab characters in PyInstaller spec generation
+  - Removed redundant debian/compat file causing debhelper compatibility conflicts
+  - Added automatic directory creation in install target to prevent "No such file or directory" errors
+  - Implemented binary reuse logic to avoid unnecessary rebuilds of wssshd binary
+  - Enhanced build efficiency by copying existing binaries from dist/ directory when available
+  - Fixed --server-only option to properly build wsssh-server Debian package
+
+- **Build System Improvements**: Enhanced build script functionality and error handling
+  - More robust error handling and directory creation for Debian package builds
+  - Intelligent reuse of existing build artifacts to reduce build times
+  - Improved output messages showing package build status
+  - Better dependency checking and error reporting for Debian builds
+
+### Version 1.4.1
 - **Watchdog Scripts for High Availability**: Professional daemon monitoring and automatic restart
   - `wssshd-watchdog`: Comprehensive watchdog script for wssshd daemon with automatic restart on failure
   - `wssshc-watchdog`: Watchdog script for wssshc client daemon with configurable restart limits