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@SonarTech SonarTech released this 07 Jul 13:04
9.5.0.73987
31e3fbe
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Learn about vigilant mode.

Release 9.5 introduces 9 new rules for C# and VB.NET developers, providing guidelines and best practices for handling date and time operations within their applications.
These rules cover a wide range of topics, including time zone conventions, common pitfalls, date parsing and formatting, time arithmetic, and more.

This release includes also one additional security rule and introduces fixes for false negatives and false positives.

Thanks to @Corniel for his contribution by implementing a new codefix for S6610 (#7517) and fixing a FP in S6354 (#7504).

New Rules

Date & time

  • 7080 - [C#, VB.NET] New rule S6588: Use DateTime(Offset).UnixEpoch instead of pointing to that date using the constructor
  • 7085 - [C#, VB.NET] New rule S6566: Always use DateTimeOffset instead of DateTime
  • 7083 - [C#, VB.NET] New rule S6561: Do not use DateTime.Now for benchmarking or timing operations
  • 7081 - [C#, VB.NET] New rule S6562: Always set the DateTimeKind when creating a new DateTime object
  • 7079 - [C#, VB.NET] New rule S6585: Don't hardcode the format provider when turning dates and times to string
  • 7078 - [C#, VB.NET] New Rule S6580: Always use DateTime.Parse overloads with an IFormatProvider parameter
  • 7077 - [C#, VB.NET] New rule S6575: Use TimeZoneInfo.FindSystemTimeZoneById instead of TimezoneConverter
  • 7076 - [C#, VB.NET] New Rule S6563: Use UTC when recoding DateTime instants
  • 7490|7086 - [C#, VB.NET] New rule S3363: Date and time should not be used as types for primary keys

Others

  • 7290 - [C#] New rule S6640: Allowing unsafe code is security-sensitive

Improvements

  • 7516 - [C#, VB.NET] Rule S6588: implement CodeFix
  • 7517 - [C#] Rule S6610: implement CodeFix
  • 7469 - SE: Run for local functions
  • 7468 - SE: Run for Top-Level statements

False Positive

  • 7504 - [C#, VB.NET] Fix S6354 FP: Do not report on XML crefs and nameof
  • 6223 - [C#, VB.NET] Fix S5332 FP: Improve detection of namespace uris

False Negative

  • 7261 - [C#] Fix S2077 FN: Add support for Mono.Data.Sqlite
  • 7323 - [C#] Fix S2068 FN: add support for SecureString

Contributors

Corniel
Assets 6
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