**Description:**
## Bugfixes
- Exported `let`/`var` declarations in TypeScript namespaces should be mutable.
- Fix missing declaration of complex exported patterns in TypeScript namespaces.
- Preserve concrete TS namespaces.
## New Features
- Introducing [Verbatim Module Syntax](https://www.typescriptlang.org/tsconfig#verbatimModuleSyntax).
- Enum value will now be inlined whenever possible within a single module, optimizing runtime performance.
- Constant enums will be automatically eliminated when feasible, This can reduce bundle size.
- Added support for cross-referencing enum values.
## Deprecated
`TsEnumConfig` is deprecated
- The `treat_const_enum_as_enum` transform option is deprecated.
- The `ts_enum_is_readonly` assumption option is deprecated.
**BREAKING CHANGE:**
TypeScript Config is changed.
**Related issue:**
- Closes#5197
- Closes#5259
- Closes#7177
- Closes#7453
- Closes#7676
- Closes#7681
- Closes#7791
- Closes#7961
**BREAKING CHANGE:**
IMPORTANT NOTE: Users of decorators are recommended to configure `"useDefineForClassFields": false` to ensure that your code is properly transpiled.
**Related issue:**
- Closes https://github.com/swc-project/swc/issues/6985.
swc_ecma_transforms_base:
- `hygiene`: Skip checking a symbol if we are sure that it will be discarded.
swc_ecma_laoder:
- Optimize `NodeModulesResolver` by trying `.js` first.
