Update CHANGELOG.md

Author: futureweb

CHANGELOG.md

@@ -12,7 +12,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - **Separate Processing Pipelines:** Implemented distinct processing logic for IPv4 and IPv6 ranges to optimize performance and maintain code clarity.
 - **Range Merging and Sorting:** Added functionality to merge and sort cloud IP ranges upfront, reducing redundancy and enhancing subtraction efficiency.
 - **Optimized Bitwise Operations:** Improved bitwise operations for both GMP and BCMath extensions to minimize computational overhead and speed up processing.
-- **Enhanced IP Conversion Functions:** Updated IP conversion functions to support IPv6 addresses using `inet_pton` and `inet_ntop`.
+- **Enhanced Functionality:**
+  - Updated IP conversion functions to support IPv6 addresses using `inet_pton` and `inet_ntop`.
+  - Refactored CIDR to range and range to CIDR conversion functions to accommodate IPv6 addressing.
 - **Composer Dependencies:** Updated `composer.json` to include dependencies for PHP extensions **GMP** and **BCMath**, along with scripts to enforce their presence.
 - **Comprehensive Documentation:** Enhanced script comments and documentation to reflect IPv6 support and the associated changes in functionality.
 
@@ -24,6 +26,25 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 - **Range Difference Logic:** Corrected the range difference calculations to ensure accurate subtraction of cloud IP ranges from Google's IP ranges for both IPv4 and IPv6.
 
+### Performance Optimizations
+- **Execution Speed:** The script now executes in under **500ms** on our test server, a significant improvement from the original Python script's **1.5 seconds** for the same task. This enhancement ensures faster IP range calculations, making the script more efficient and responsive.
+
+## [1.0.1] - 2024-11-20
+### **New Feature: Direct CLI Output**
+
+This release introduces the ability for the script to output the calculated IP prefixes directly to the CLI when executed from the command line.
+
+#### **What's New?**
+- When the script is run via CLI (`php google_ip_prefix_diff.php`), it now outputs the resulting IP prefixes (CIDR blocks) line by line.
+- This makes it easier to redirect the output to a file for caching or further processing:
+  ```bash
+  php google_ip_prefix_diff.php > cached_ip_ranges.txt
+  ```
+
+#### **Benefits:**
+- **Automation-Friendly**: Enables easy integration with cron jobs or other automation tools.
+- **Improved Usability**: Users no longer need to manually handle the returned array when running the script via CLI.
+
 ## [1.0.0] - 2024-11-19
 
 ### Added