Update changelog

Author: patrickkerrigan

CHANGELOG.md

@@ -9,6 +9,10 @@
 ### Changed
 - Slashes are no longer escaped when serialising traces, leaving more room for data
 
+## [1.4.1] - 2024-11-25
+### Fixed
+- Implicit nullable types have been replaced with explicit nullable types, fixing deprecation errors under PHP >=8.4
+
 ## [1.4.0] - 2022-01-09
 ### Removed
 - Support for PHP 7.0 has now been removed, with PHP >=7.1 being required from this version onwards. Users who cannot use a newer version of PHP should continue to use 1.3.0, which will continue to receive security fixes for at least 12 months. Users who can use a newer version of PHP are strongly encouraged to upgrade to at least PHP 7.4