| Code: Completion | Bug | OC-15494 | Broken autocomplete for Array methods |
| Bug | OC-16220 | iOS fonts completion is broken for Xcode 9 |
| Code: Documentation | Bug | OC-15469 | Quick documentation for operators |
| Code: Find Usages | Bug | OC-15112 | Find usages does not work when method and variable from different protocols have the same names |
| Code: Highlighting and Inspections | Feature | OC-16185 | Don't show type hints for obvious initializer calls |
| Bug | OC-15657 | Clang 9.0 is not supported |
| Bug | OC-14076 | Using Swift properties when calling Obj-C methods from Obj-C results in 'Parameter type mismatch' |
| Code: Refactorings | Bug | OC-15704 | Rename of tuple items referenced by literals |
| Code: Resolving | Bug | OC-11986 | Wrong method resolve when there is a variable with the same name |
| Bug | OC-16226 | Interface categories could be placed below the usage |
| Bug | OC-16224 | SOE: Self.X in requirement of class extension |
| Bug | OC-16248 | "Assertion failed: <unnamed>" exception leads to resolve problems in mixed Swift/Objective-C code |
| Bug | OC-15498 | SOE resolving associatedtype from protocol in extension |
| Bug | OC-16245 | Type aliases declared in protocol extension aren't resolved |
| Bug | OC-13087 | Resolving initializers of classes written in Objective-C |
| Bug | OC-16088 | Generic parameters shouldn't be resolved in qualified type references |
| Swift Support | Feature | OC-15357 | Swift 3: Drop NS Prefix in Swift Foundation (SE-0086) |
| No subsystem | Bug | CPP-10961 | std::string not resolved |
| Code: Editing | Performance | CPP-10557 | Freeze after reloading project with header file open in editor |
| Code: Highlighting and Inspections | Bug | CPP-10498 | Missing error for friend class declared further |
| Code: Parsing | Bug | CPP-8025 | Class name should be considered to be a member of that class by name lookup (3.4 p3) |
| Bug | CPP-8399 | Class inheritance doesn't bring symbol into scope |
| Code: Resolving | Bug | CPP-11045 | Names in default values of parameters can be resolved to declaration below |
| Bug | CPP-10505 | Unqualified name lookup works incorrect for type declared by typedef/using used in the declarator of a friend function |
| Bug | CPP-10886 | Name lookup shouldn't lookup namespaces below |
| Bug | CPP-10092 | Names from usings should be looked up after members lookup in the whole hierarcy |
| Bug | CPP-7279 | Namespace alias not looked up in if conditions |
| Bug | CPP-10970 | Regression with namespace usings |
| Bug | CPP-10096 | Constructor inheritance with 'using' doesn't work with type alias name in base class |
| Bug | CPP-9960 | Type resolution failure: typedef referring to a symbol imported via 'using' |
| Bug | CPP-11033 | Overloaded operator is not resolved when its 2nd operand type clashes with a subtype in 1st operand type |
| Bug | CPP-9971 | Elaborated type specifiers don't work with using |
| Bug | CPP-10935 | False mismatch error in copy constructor with typedef'd typename parameter |
| Bug | CPP-10717 | Don't resolve names before the corresponding declarations from the same scope |
| Bug | CPP-9424 | Unqualified name lookup inside classes is broken |
| Bug | CPP-9149 | Can't resolve variable from one level higher namespace |
| Bug | CPP-7480 | Bogus syntax error for template argument with namespace alias |
| Bug | CPP-4669 | Explicitly specified base class name is not resolved in scope resolution for member function definition |
| Diff_Merge | Bug | IDEA-172735 | Navigation from File structure pop-up does not work inside Diff panel |
| Find, Replace, Find Usages | Bug | IDEA-181019 | Error when doing a 'find usage' with 'derived class' selected in dialog |
| User Interface | Bug | IDEA-180962 | disable JRE-HiDPI (per-monitor DPI-aware) mode by default in IDEA 2017.3 |
| Bug | IDEA-174258 | Painting progress bars eats CPU |
| Cosmetics | IDEA-181117 | ExpandableTextField has incorrectly rendered 'Expand' button |
| Version Control | Bug | IDEA-180991 | VCS group by directory should show path relative to the path of project/module |