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This release brings 9 precision improvements — 7 false positive fixes and 2 false negative fixes — across rules S1116, S1144, S1210, S1643, S1854, S2365, S3254, S3265, and S127. It also promotes S2068 and S6418 from Security Hotspot to Vulnerability, making them visible directly in the IDE, and removes S3256 from the Sonar Way quality profile.

Changes

False Positive

  • NET-3215 - Fix FP on S127: Should only raise on stop condition variables
  • NET-3212 - Fix FP on S3254: Don't raise if the parameter isn't last
  • NET-3053 - Fix FP on S1210: Implementing comparable operators for private types
  • NET-2984 - Fix FP on S3265: BCL enums with [Flags] not recognized due to metadata resolution
  • NET-2976 - Fix FP on S1854: Default value initializations flagged despite exemptions
  • NET-2966 - Fix FP on S1144: Constructors in MEF-exported types
  • NET-2956 - Fix FP on S1116: Empty loop body with side effects in condition

False Negative

  • NET-1261 - Fix FN on S2365: Rule should report on new collection
  • NET-1259 - Fix FN on S1643: Concatenation for parameters, fields and properties are not detected

Rule specification

  • NET-3246 - Modify Rule S127: Update Description
  • NET-3218 - Modify Rule S3265: Add exception for MethodImplAttributes
  • NET-3086 - Modify Rule S1116: Add loop exception

Maintenance

  • NET-3047 - Update RSPEC before 10.20 release
Source: README.md, updated 2026-02-25