FortiAnalyzer 7.4.0 supports the following versions of FortiProxy:
7.2.0 to 7.2.5
7.0.0 to 7.0.11
2.0.0 to 2.0.5
1.2.0 to 1.2.13
1.1.0 to 1.1.6
1.0.0 to 1.0.7