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Author: Felicity Chapman

change-notes/1.20/analysis-csharp.md

@@ -1,24 +1,18 @@
 # Improvements to C# analysis
 
-## General improvements
-
-## New queries
-
-| **Query**                   | **Tags**  | **Purpose**                                                        |
-|-----------------------------|-----------|--------------------------------------------------------------------|
-
 ## Changes to existing queries
 
-| *@name of query (Query ID)*  | *Impact on results*    | *How/why the query has changed*   |
+| **Query**                    | **Expected impact**    | **Change**                        |
 |------------------------------|------------------------|-----------------------------------|
-| Off-by-one comparison against container length (`cs/index-out-of-bounds`) | Fewer false positives | Results have been removed when there are additional guards on the index. |
+
 | Dereferenced variable is always null (`cs/dereferenced-value-is-always-null`) | Improved results | The query has been rewritten from scratch, and the analysis is now based on static single assignment (SSA) forms. The query is now enabled by default in LGTM. |
 | Dereferenced variable may be null (`cs/dereferenced-value-may-be-null`) | Improved results | The query has been rewritten from scratch, and the analysis is now based on static single assignment (SSA) forms. The query is now enabled by default in LGTM. |
+| Double-checked lock is not thread-safe (`cs/unsafe-double-checked-lock`) | Fewer false positives, more true positives | Results have been removed where the underlying field was not updated in the `lock` statement, or where the field is a `struct`. Results have been added where there are other statements inside the `lock` statement. |
+| Off-by-one comparison against container length (`cs/index-out-of-bounds`) | Fewer false positives | Results have been removed when there are additional guards on the index. |
 | SQL query built from user-controlled sources (`cs/sql-injection`), Improper control of generation of code (`cs/code-injection`), Uncontrolled format string (`cs/uncontrolled-format-string`), Clear text storage of sensitive information (`cs/cleartext-storage-of-sensitive-information`), Exposure of private information (`cs/exposure-of-sensitive-information`) | More results | Data sources have been added from user controls in `System.Windows.Forms`. |
+| Unused format argument (`cs/format-argument-unused`) | Fewer false positives | Results have been removed where the format string is empty. This is often used as a default value and is not an interesting result. |
 | Use of default ToString() (`cs/call-to-object-tostring`) | Fewer false positives | Results have been removed for `char` arrays passed to `StringBuilder.Append()`, which were incorrectly marked as using `ToString`. |
 | Use of default ToString() (`cs/call-to-object-tostring`) | Fewer results | Results have been removed when the object is an interface or an abstract class. |
-| Unused format argument (`cs/format-argument-unused`) | Fewer false positives | Results have been removed where the format string is empty. This is often used as a default value and is not an interesting result. |
-| Double-checked lock is not thread-safe (`cs/unsafe-double-checked-lock`) | Fewer false positives, more true positives | Results have been removed where the underlying field was not updated in the `lock` statement, or where the field is a `struct`. Results have been added where there are other statements inside the `lock` statement. |
 | Using a package with a known vulnerability (`cs/use-of-vulnerable-package`) | More results | This query detects packages vulnerable to CVE-2019-0657. |
 
 ## Changes to code extraction