Update CHANGELOG.md (#90)

* Update CHANGELOG.md

Author: vlussenburg

CHANGELOG.md

@@ -1,7 +1,14 @@
 # Backtrace Cocoa Release Notes
 
+## Version 1.7.4-beta1
+- Modifies the CI job to run tests daily on schedule in #81
+- Skip file attachments that are larger than 10MB in #84
+- Adds additional functionality for breadcrumbs in beta in #79
+- Improves out of memory (OOM) reporting in #88 
+- Updates README by @lysannep in #89
+
 ## Version 1.7.3
-- Enable OOM reports for 15.3.1 against, disable client side unwinding by default
+- Enables OOM reports for iOS version 15.3.1, and disables client side unwinding by default
 - Added BETA Breadcrumbs implementation
 - Updated BETA Crash Free metrics based on feedback from beta testing
 - Updated build scripts