Update CHANGELOG.md

pascal-lab · Feb 5, 2024 · 331589a · 331589a
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 # Changelog
 
-## [Unreleased] - 2024-01-15
+## [Unreleased] - 2024-01-20
 
 ### New Features
 - Add side-effect analysis.
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 - API changes
   - Change `Solver.addPFGEdge(Pointer,Pointer,FlowKind,Type)` and `Solver.addPFGEdge(Pointer,Pointer,FlowKind,Transfer)` to `Solver.addPFGEdge(PointerFlowEdge)` and related APIs.
   - Deprecate `pascal.taie.analysis.pta.plugin.util.Model` and `IRModel` (these two interfaces are currently preserved for compatibility, and will be removed in the future).
+  - Change `PrimitiveType` from `enum` to an `interface` and implement it by classes that represent concrete primitive types. Refine the types of certain expressions from `PrimitiveType` to the concrete primitive types.
 
 ## [0.2.2] - 2023-09-23