Add back the change log file

Author: Vectorial1024

.gitignore

@@ -1,2 +1,3 @@
 /vendor/
 composer.lock
+.idea

CHANGELOG.md

@@ -0,0 +1,30 @@
+# Change log of `open-location-code-php`
+
+Note: you may refer to `README.md` for description of features.
+
+## Dev (WIP)
+
+## 1.1.2 (2024-10-29)
+
+Hotfix: removed `composer.lock` from distribution (ba2014fc551dbfd2456eadb4f9e31ed5f80671a6)
+
+## 1.1.1 (2024-10-23)
+
+Hotfix: the code calculators are now `final` (b52ff47a044a12bbe364856c7f3fbf8e0ced4aa3)
+
+## 1.1.0 (2024-10-23)
+
+Minor update to the library.
+
+- Added a new way to efficiently check OLC area containment for many points (https://github.com/Vectorial1024/open-location-code-php/pull/3)
+- 32-bit compatibility is now automatically applied to only 32-bit PHP runtime (https://github.com/Vectorial1024/open-location-code-php/pull/4)
+- Fixed a minor PHPDoc error
+
+## 1.0.0 (2024-10-04)
+
+Initial release.
+
+This is a modern PHP port of the `google/open-location-code` repository to handle Open Location Codes (aka Plus Codes).
+
+- Uses PHP objects to handle Open Location Code
+- OLC decoding returns an object for easier handling

README.md

@@ -32,6 +32,10 @@ composer require vectorial1024/open-location-code-php
 **Special Notice**: to ensure 32-bit PHP compatibility, this library will check the PHP runtime and, if it detects a 32-bit PHP runtime, will use `float` variables instead of `int` variables to calculate Open Location Codes.
 This may cause some unintended inaccuracies in 32-bit PHP, but generally speaking, there should be no problems.
 
+### Change log
+
+Please see `CHANGELOG.MD`.
+
 ## Example code
 
 ### Checking and creating OLC codes