Add change_notes file

Author: mbaluda

c/cert/src/rules/STR32-C/NonNullTerminatedToFunctionThatExpectsAString.md

@@ -271,7 +271,7 @@ CWE-123 – STR31-C =
 
 ## Implementation notes
 
-None
+Wide character types are not handled correctly on the `aarch64le` architecture. This can lead to false negative alerts.
 
 ## References
 

c/cert/src/rules/STR38-C/DoNotConfuseNarrowAndWideFunctions.md

@@ -131,7 +131,7 @@ Search for vulnerabilities resulting from the violation of this rule on the [CER
 
 ## Implementation notes
 
-None
+Wide character types are not handled correctly on the `aarch64le` architecture. This can lead to false negative alerts.
 
 ## References
 

change_notes/2023-04-24-fix-compatibility-issues-with-qnx.md

@@ -0,0 +1,9 @@
+* Fix compatibility issues with the `qcc` compiler and standard headers:
+  * `RULE-21-4`: `longjmp` can be implmented as macro
+  * `ENV32-C`: exit functions can be implmented as macro
+  * `ERR33-C` `FIO34-C` `FIO46-C` `RULE-22-6`: the library files `ReadErrorsAndEOF.qll` `DoNotAccessAClosedFile.qll` `FileAccess.qll` have been updated to support different definitions of IO related functions and macros
+  * `RULE-10-6`: Fix output string format
+  * `STR37-C`: add support for a different `tolower/toupper` macro implementation
+  * `EXP43-C`: add explicit support for library functions that are mentioned in the rule description
+  * `RULE-11-1` `RULE-11-2` `RULE-11-5`: support for a different NULL pointer definition
+  * `STR38-C`: removed links to library internals in the output message