Update change log (#87)

Author: EFanZh

CHANGELOG.md

@@ -4,6 +4,12 @@
 
 ## [Unreleased]
 
+## [1.7.4] - 2024-10-02
+
+### Fixed
+
+- Fixes occasional empty graph error.
+
 ## [1.7.3] - 2024-10-01
 
 ### Fixed
@@ -197,7 +203,8 @@
 
 - Initial release.
 
-[Unreleased]: https://github.com/EFanZh/Graphviz-Preview/compare/1.7.3...master
+[Unreleased]: https://github.com/EFanZh/Graphviz-Preview/compare/1.7.4...master
+[1.7.4]: https://github.com/EFanZh/Graphviz-Preview/compare/1.7.3...1.7.4
 [1.7.3]: https://github.com/EFanZh/Graphviz-Preview/compare/1.7.2...1.7.3
 [1.7.2]: https://github.com/EFanZh/Graphviz-Preview/compare/1.7.1...1.7.2
 [1.7.1]: https://github.com/EFanZh/Graphviz-Preview/compare/1.7.0...1.7.1