9.17

Hi everyone!

We are shipping some more improvements to our Symbolic Execution rules reducing the number of false positives.

False Negatives

• 8493 - [C#] Fix S2583/S2589 FN and S2259 FP: Add support for relational pattern

False Positive

• 7665 - [C#, VB.NET] Fix S2259 FP: is not and short-circuit or
• 8382 - [C#, VB.NET] Fix S2589 FP: Custom Equals(null) is wrongly assumed to always return false
• 8504 - [C#, VB.NET] Fix S1104 FP: Should be ignored on classes and structs marked as [Serializable]