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43 lines
2.5 KiB
Markdown
43 lines
2.5 KiB
Markdown
## 0.6.0
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### Breaking Changes
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* The `semmle.code.cpp.commons.Buffer` and `semmle.code.cpp.commons.NullTermination` libraries no longer expose `semmle.code.cpp.dataflow.DataFlow`. Please import `semmle.code.cpp.dataflow.DataFlow` directly.
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### Deprecated APIs
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* The `WriteConfig` taint tracking configuration has been deprecated. Please use `WriteFlow`.
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### New Features
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* Added support for merging two `PathGraph`s via disjoint union to allow results from multiple data flow computations in a single `path-problem` query.
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### Major Analysis Improvements
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* A new C/C++ dataflow library (`semmle.code.cpp.dataflow.new.DataFlow`) has been added.
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The new library behaves much more like the dataflow library of other CodeQL supported
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languages by following use-use dataflow paths instead of def-use dataflow paths.
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The new library also better supports dataflow through indirections, and new predicates
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such as `Node::asIndirectExpr` have been added to facilitate working with indirections.
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The `semmle.code.cpp.ir.dataflow.DataFlow` library is now identical to the new
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`semmle.code.cpp.dataflow.new.DataFlow` library.
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* The main data flow and taint tracking APIs have been changed. The old APIs
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remain in place for now and translate to the new through a
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backwards-compatible wrapper. If multiple configurations are in scope
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simultaneously, then this may affect results slightly. The new API is quite
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similar to the old, but makes use of a configuration module instead of a
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configuration class.
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### Minor Analysis Improvements
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* Deleted the deprecated `hasGeneratedCopyConstructor` and `hasGeneratedCopyAssignmentOperator` predicates from the `Folder` class.
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* Deleted the deprecated `getPath` and `getFolder` predicates from the `XmlFile` class.
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* Deleted the deprecated `getMustlockFunction`, `getTrylockFunction`, `getLockFunction`, and `getUnlockFunction` predicates from the `MutexType` class.
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* Deleted the deprecated `getPosInBasicBlock` predicate from the `SubBasicBlock` class.
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* Deleted the deprecated `getExpr` predicate from the `PointerDereferenceExpr` class.
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* Deleted the deprecated `getUseInstruction` and `getDefinitionInstruction` predicates from the `Operand` class.
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* Deleted the deprecated `isInParameter`, `isInParameterPointer`, and `isInQualifier` predicates from the `FunctionInput` class.
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* Deleted the deprecated `isOutParameterPointer`, `isOutQualifier`, `isOutReturnValue`, and `isOutReturnPointer` predicate from the `FunctionOutput` class.
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* Deleted the deprecated 3-argument `isGuardPhi` predicate from the `RangeSsaDefinition` class.
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