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chore(deps-dev): bump typescript from 5.9.3 to 6.0.2 in /lightrag_webui#2971

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chore(deps-dev): bump typescript from 5.9.3 to 6.0.2 in /lightrag_webui#2971
dependabot[bot] wants to merge 1 commit intomainfrom
dependabot/bun/lightrag_webui/typescript-6.0.2

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@dependabot dependabot Bot commented on behalf of github Apr 23, 2026

Bumps typescript from 5.9.3 to 6.0.2.

Release notes

Sourced from typescript's releases.

TypeScript 6.0

For release notes, check out the release announcement blog post.

Downloads are available on:

TypeScript 6.0 Beta

For release notes, check out the release announcement.

Downloads are available on:

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@dependabot dependabot Bot added dependencies Pull requests that update a dependency file frontend labels Apr 23, 2026
@dependabot dependabot Bot force-pushed the dependabot/bun/lightrag_webui/typescript-6.0.2 branch from 69208a3 to 30cfbc9 Compare April 24, 2026 09:04
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@codex 请评估本次版本升级的风险,并根据以下信息仔细审核升级后代码是否会崩掉:

TypeScript 5.9.3 至 6.0.2 升级风险评估报告 (React 环境)

TypeScript 6.0 是在全面迁移至 Go 原生编译器(TypeScript 7.0)之前的最后一个基于 JavaScript 的过渡版本。从 5.9.3 跨越到 6.0.2 包含了极其激进的默认值更改和底层机制重构。整体来看,本次升级的风险评级为高,不仅会引发大面积的类型报错,还可能需要对构建配置链进行调整。

以下是核心风险项及断崖式变更的详细评估:

  1. 泛型 JSX 表达式与类型推断收紧

TS 6.0 针对泛型调用中的函数表达式(尤其是泛型 JSX 表达式)进行了更严苛的类型检查调整。

潜在破坏: 当你封装复杂的 React 高阶组件,或者处理带有复杂泛型状态的数据结构(例如处理 Yjs 这类强依赖细粒度类型推断的实时协同模型,或是解析由 Prisma 传入前端的深层嵌套数据)时,原先能够隐式推断通过的代码可能会报错。你往往需要在组件调用点显式传递泛型参数。

Hooks 影响: 对无 this 函数的类型推断有所增强,早期写法不够严谨的 useEffect 回调闭包或初始值模糊的 useState,可能会暴露出新的类型不匹配或隐式 any 风险。

  1. tsconfig.json 默认配置的破坏性变更

6.0 版本抛弃了以往宽容的缺省值,旨在清理历史包袱并向 7.0 靠拢:

strict 默认开启: 布尔值默认变为 true。如果旧代码存在非严格模式的角落,升级后会瞬间触发大量类型收窄验证错误。

types 默认为空数组 ([]): TS 不再自动遍历并加载 node_modules/@types 下的所有包。这虽然能将构建时间大幅缩短多达 50%,但会直接导致像 Playwright 这类重度依赖全局自动注入的 E2E 测试框架,或特定的全局环境变量丢失类型提示。你必须手动在配置文件中按需声明引入。

编译目标跃迁: module 默认变为 esnext,target 默认升至 es2025。

  1. 核心编译选项的彻底废弃

废弃 --baseUrl: 这是前端项目迁移的重灾区。在基于 Next.js 搭建 SSR 架构时,经常重度依赖 baseUrl 结合 paths 来实现优雅的绝对路径别名导入。升级后必须彻底剥离 baseUrl 配置,转而完全依靠原生的 Node subpath imports (#/*) 或纯 paths 映射。

废弃 moduleResolution: node: 传统的 Node 解析模式被正式弃用。现代 React 环境需要全面迁移至 "bundler" 或 "nodenext"。这种转变可能会暴露出一些第三方库在 package.json 的 exports 字段定义不规范的问题。

  1. 标准库与类型稳定性测试

新提案 API: 6.0 原生纳入了 TC39 Stage 4 提案的类型(如旨在替代 Date 的 Temporal API、Map.getOrInsert 等)。

排序稳定性标志: 为了平滑过渡到 7.0 并行架构,6.0 提供了 --stableTypeOrdering 标志。TS 过去依赖解析顺序生成内部类型 ID,现在强制使用基于内容的确定性排序。虽然语义不变,但在输出 .d.ts 声明文件时可能会产生意想不到的 diff 噪音,且开启该标志会带来一定的编译性能损耗。

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"tailwindcss": "^4.2.2",
"tailwindcss-animate": "^1.0.7",
"typescript": "~5.9.3",
"typescript": "~6.0.2",
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P2 Badge Declare Node ambient types before bumping to TS 6

This major-version bump relies on TypeScript 6.0 defaults, but tsconfig.json does not set compilerOptions.types (it currently includes vite.config.ts and uses Node globals/modules there such as process, __dirname, and path). In TS 6, types defaults to [], so tsc/tsserver will start reporting missing Node identifiers unless we explicitly add Node typings (for example "types": ["node"]), which introduces immediate type-check regressions for local development and any CI job that runs TypeScript checks.

Useful? React with 👍 / 👎.

@danielaskdd danielaskdd marked this pull request as draft April 24, 2026 10:46
@dependabot dependabot Bot force-pushed the dependabot/bun/lightrag_webui/typescript-6.0.2 branch from 30cfbc9 to f90f6b4 Compare April 26, 2026 18:39
@dependabot dependabot Bot force-pushed the dependabot/bun/lightrag_webui/typescript-6.0.2 branch 3 times, most recently from 34e1261 to 6e20d18 Compare May 7, 2026 19:11
Bumps [typescript](https://github.com/microsoft/TypeScript) from 5.9.3 to 6.0.2.
- [Release notes](https://github.com/microsoft/TypeScript/releases)
- [Commits](microsoft/TypeScript@v5.9.3...v6.0.2)

---
updated-dependencies:
- dependency-name: typescript
  dependency-version: 6.0.2
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
@dependabot dependabot Bot force-pushed the dependabot/bun/lightrag_webui/typescript-6.0.2 branch from 6e20d18 to 9071d55 Compare May 7, 2026 19:16
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