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description: "Changelog and version history for the VHD TOOL ++ utility."
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# 📝 VHD TOOL ++ Changelog

This document tracks the modification history of the **VHD TOOL ++** utility. Below is a summary of changes for each version, including new features, performance enhancements, bug fixes, and technical notes.

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## [Version 0.9.1.1] - 2026-06-23 ~ (Beta)

### 🐛 Bug Fixes
*   **Upload tab**: Fixed missing free-space check when the *No Fragment* option is unchecked.
*   **Disk write**: Prevented crashes when errors occur during disk write operations.
*   **VHD conversion**: Fixed stability issues that could cause crashes during Convert operations.
*   **External tools**: Improved reliability when temporary or tool paths contain spaces.
*   **Drive/volume info**: Improved drive path handling and safe fallback when volume information cannot be read.
*   **Write To HDD tab**: Fixed a crash when the system drive environment variable is not set.
*   **Size input fields**: Invalid values in create, expand, and upload size fields are now handled safely instead of causing errors.
*   **External tool output**: Error messages from external tools are now captured along with standard output.
*   **Cleanup on exit**: Temporary files and folders are now removed more reliably when the application closes.

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## [Version 0.9.0.xx] - 2026-05-26 ~ (Beta)

### 🐛 Bug Fixes
*   Fixed VHD creation error on **exFAT** file systems.

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## [Version 0.8.0.1] - 2025-02-05

### 🚀 Major Changes
*   **New Feature**: Added robust support for creating VHD files without fragmentation (Contiguous allocation) specifically for **NTFS** and **exFAT** file systems.

### ⚡ Enhancements
*   Significantly improved VHD creation speed and overall system stability.

### 🐛 Bug Fixes
*   Fixed various minor UI display issues.

### 🛠️ Technical Notes
*   **MD5 Hash**: `79fdc0e35a4469d4fbbed2cd4437a1fa`

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## [Version 0.7.0.11] - 2017-07-26

### 🚀 Initial Release
*   First stable release of the VHD TOOL ++ utility.

### 🛠️ Technical Notes
*   **MD5 Hash**: `4da6b6372b4feb9063b2eff377a72536`

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## 📌 Notes & Support
*   **Future Plans**: To be determined (TBD)
*   **Contact & Support**: For inquiries, please contact [kbs@iodd.kr](mailto:kbs@iodd.kr)