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refactor(jsx): shorten use hook a bit #2231

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merged 2 commits into from
Feb 17, 2024

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usualoma
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This is a very small refactoring and changes nothing in the specifications.

When processing the result of an "if/else" type of promise, it is shorter and clearer to pass two functions to .then() than to use .catch().

Author should do the followings, if applicable

  • Run tests
  • yarn denoify to generate files for Deno

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@yusukebe yusukebe left a comment

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Ah, I see. We can pass two functions to then!
Looks good!

@yusukebe yusukebe merged commit 7cf7432 into honojs:main Feb 17, 2024
10 checks passed
nicolewhite referenced this pull request in autoblocksai/cli Mar 27, 2024
[![Mend
Renovate](https://app.renovatebot.com/images/banner.svg)](https://renovatebot.com)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [hono](https://hono.dev/) ([source](https://togithub.com/honojs/hono))
| [`^3.12.12` ->
`^4.0.0`](https://renovatebot.com/diffs/npm/hono/3.12.12/4.1.3) |
[![age](https://developer.mend.io/api/mc/badges/age/npm/hono/4.1.3?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/hono/4.1.3?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/hono/3.12.12/4.1.3?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|
[![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/hono/3.12.12/4.1.3?slim=true)](https://docs.renovatebot.com/merge-confidence/)
|

---

### Release Notes

<details>
<summary>honojs/hono (hono)</summary>

### [`v4.1.3`](https://togithub.com/honojs/hono/releases/tag/v4.1.3)

[Compare
Source](https://togithub.com/honojs/hono/compare/v4.1.2...v4.1.3)

#### What's Changed

- fix(deno): export jwt helpers for Deno in `src/helper.ts` by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2385](https://togithub.com/honojs/hono/pull/2385)
- fix(jsx): use self closing tag only if element has no children by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2384](https://togithub.com/honojs/hono/pull/2384)
- feat(ssg): Support asynchronous hooks by
[@&#8203;watany-dev](https://togithub.com/watany-dev) in
[https://github.com/honojs/hono/pull/2381](https://togithub.com/honojs/hono/pull/2381)
- fix(validator): use cached body for `json` and `form` validation by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2392](https://togithub.com/honojs/hono/pull/2392)
- fix(jsx): escape attribute value for "style" by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2390](https://togithub.com/honojs/hono/pull/2390)

**Full Changelog**:
honojs/hono@v4.1.2...v4.1.3

### [`v4.1.2`](https://togithub.com/honojs/hono/releases/tag/v4.1.2)

[Compare
Source](https://togithub.com/honojs/hono/compare/v4.1.1...v4.1.2)

#### What's Changed

- feat(utils/cookie): Typesafe cookie options by
[@&#8203;Jxck](https://togithub.com/Jxck) in
[https://github.com/honojs/hono/pull/2350](https://togithub.com/honojs/hono/pull/2350)
- fix(router): accept reg exp meta characters in path by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2375](https://togithub.com/honojs/hono/pull/2375)
- perf(utils/url): use `slice` + `indexOf` for `getPath()` by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2376](https://togithub.com/honojs/hono/pull/2376)
- fix(router): wildcard paths when using js reserved words (like
constructor and **proto**) by
[@&#8203;lmcarreiro](https://togithub.com/lmcarreiro) in
[https://github.com/honojs/hono/pull/2357](https://togithub.com/honojs/hono/pull/2357)
- fix(types): `MergePath` merge blank paths correctly by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2365](https://togithub.com/honojs/hono/pull/2365)

#### New Contributors

- [@&#8203;lmcarreiro](https://togithub.com/lmcarreiro) made their first
contribution in
[https://github.com/honojs/hono/pull/2357](https://togithub.com/honojs/hono/pull/2357)

**Full Changelog**:
honojs/hono@v4.1.1...v4.1.2

### [`v4.1.1`](https://togithub.com/honojs/hono/releases/tag/v4.1.1)

[Compare
Source](https://togithub.com/honojs/hono/compare/v4.1.0...v4.1.1)

#### What's Changed

- fix(context): export `ExecutionContext` from `hono` by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2346](https://togithub.com/honojs/hono/pull/2346)
- fix(client): Remove trailing slash from /index for precise path
matching by [@&#8203;poteboy](https://togithub.com/poteboy) in
[https://github.com/honojs/hono/pull/2344](https://togithub.com/honojs/hono/pull/2344)
- ci: fix bun version for `denoify` by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2362](https://togithub.com/honojs/hono/pull/2362)
- refactor(jsx-renderer): remove unnecessary comments for eslint by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2361](https://togithub.com/honojs/hono/pull/2361)
- fix(lambda-edge): Lambda@Edge GET/HEAD body error. by
[@&#8203;trkbt10](https://togithub.com/trkbt10) in
[https://github.com/honojs/hono/pull/2351](https://togithub.com/honojs/hono/pull/2351)
- fix(jsx-renderer): don't overwrite headers if stream is `true` by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2363](https://togithub.com/honojs/hono/pull/2363)
- fix(context): set headers correctly if it has `this.#headers` by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2364](https://togithub.com/honojs/hono/pull/2364)
- fix(streaming): Fix stream SSE, not necessary close stream. by
[@&#8203;damianpumar](https://togithub.com/damianpumar) in
[https://github.com/honojs/hono/pull/2320](https://togithub.com/honojs/hono/pull/2320)

#### New Contributors

- [@&#8203;poteboy](https://togithub.com/poteboy) made their first
contribution in
[https://github.com/honojs/hono/pull/2344](https://togithub.com/honojs/hono/pull/2344)
- [@&#8203;trkbt10](https://togithub.com/trkbt10) made their first
contribution in
[https://github.com/honojs/hono/pull/2351](https://togithub.com/honojs/hono/pull/2351)
- [@&#8203;damianpumar](https://togithub.com/damianpumar) made their
first contribution in
[https://github.com/honojs/hono/pull/2320](https://togithub.com/honojs/hono/pull/2320)

**Full Changelog**:
honojs/hono@v4.1.0...v4.1.1

### [`v4.1.0`](https://togithub.com/honojs/hono/releases/tag/v4.1.0)

[Compare
Source](https://togithub.com/honojs/hono/compare/v4.0.10...v4.1.0)

Hono v4.1.0 is now available! Let's take a look at the new features.

##### WebSocket Helper

Now Hono supports WebSockets! With [WebSocket
helper](https://hono.dev/helpers/websocket), you can easily handle
WebSockets in your application. Currently, Cloudflare Workers / Pages,
Deno, and Bun adapters are available.

```ts
const app = new Hono()

app.get(
  '/ws',
  upgradeWebSocket((c) => {
    return {
      onMessage(event, ws) {
        console.log(`Message from client: ${event.data}`)
        ws.send('Hello from server!')
      },
      onClose: () => {
        console.log('Connection closed')
      }
    }
  })
)
```

PRC mode is now also supported for WebSockets endpoints. The following
is a demo.

![WebSocket
Helper](https://togithub.com/honojs/hono/assets/10682/46a60a53-b367-4f77-b727-fd535c5a5961)

Thanks [@&#8203;nakasyou](https://togithub.com/nakasyou)!

##### Body Limit Middleware

Introducing [Body Limit
Middleware](https://hono.dev/middleware/builtin/body-limit). This
middleware can limit the file size of the request body.

```ts
const app = new Hono()

app.post(
  '/upload',
  bodyLimit({
    maxSize: 50 * 1024, // 50kb
    onError: (c) => {
      return c.text('overflow :(', 413)
    }
  }),
  async (c) => {
    const body = await c.req.parseBody()
    if (body['file'] instanceof File) {
      console.log(`Got file sized: ${body['file'].size}`)
    }
    return c.text('pass :)')
  }
)
```

Thanks [@&#8203;EdamAme-x](https://togithub.com/EdamAme-x) and
[@&#8203;usualoma](https://togithub.com/usualoma)!

##### ES2022

We made the `target` in the `tsconfig.json` as ES2022 instead of ES2020.
So, the generated JavaScript files are now ES2022. That made the file
size smaller! The following is the result of the minify and build of
"Hello World" with Wrangler.

```txt
// ES2020
hono => Total Upload: 20.15 KiB / gzip: 7.42 KiB
hono/tiny => Total Upload: 12.74 KiB / gzip: 4.69 KiB
```

```txt
// ES2022
hono => Total Upload: 18.46 KiB / gzip: 7.09 KiB
hono/tiny => Total Upload: 11.12 KiB / gzip: 4.38 KiB
```

Performance has also been improved in some Node.js environments.


![SS](https://togithub.com/honojs/hono/assets/10682/2406e5c6-50c7-4e9a-b085-70cd47277434)

##### Other features

- Cookie Helper - Supports `__Secure-` and `__Host- prefix`
[https://github.com/honojs/hono/pull/2269](https://togithub.com/honojs/hono/pull/2269)
- Cookie Helper - Check bis condition
[https://github.com/honojs/hono/pull/2314](https://togithub.com/honojs/hono/pull/2314)
- jsx/dom - Add more React staff
[https://github.com/honojs/hono/pull/2197](https://togithub.com/honojs/hono/pull/2197)
- SSG - Generate files concurrently
[https://github.com/honojs/hono/pull/2187](https://togithub.com/honojs/hono/pull/2187)
- HTTP Exception - Add `cause` option
[https://github.com/honojs/hono/pull/2224](https://togithub.com/honojs/hono/pull/2224)
- Logger - Support `NO_COLOR`
[https://github.com/honojs/hono/pull/2228](https://togithub.com/honojs/hono/pull/2228)

##### All Updates

- feat: Add a "cause" option to HTTPException by
[@&#8203;Karibash](https://togithub.com/Karibash) in
[https://github.com/honojs/hono/pull/2224](https://togithub.com/honojs/hono/pull/2224)
- feat(logger): support `NO_COLOR` by
[@&#8203;ryuapp](https://togithub.com/ryuapp) in
[https://github.com/honojs/hono/pull/2228](https://togithub.com/honojs/hono/pull/2228)
- feat(cookie): add secure and host prefix support by
[@&#8203;Datron](https://togithub.com/Datron) in
[https://github.com/honojs/hono/pull/2269](https://togithub.com/honojs/hono/pull/2269)
- feat(ssg): generate files concurrently by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2187](https://togithub.com/honojs/hono/pull/2187)
- feat(jsx): more react staff by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2197](https://togithub.com/honojs/hono/pull/2197)
- feat: introduce Body Limit Middleware using stream by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2309](https://togithub.com/honojs/hono/pull/2309)
- feat: Introduce WebSocket Helper / Adapter by
[@&#8203;nakasyou](https://togithub.com/nakasyou) in
[https://github.com/honojs/hono/pull/2265](https://togithub.com/honojs/hono/pull/2265)
- refactor(SSG): separate middleware logic by
[@&#8203;watany-dev](https://togithub.com/watany-dev) in
[https://github.com/honojs/hono/pull/2315](https://togithub.com/honojs/hono/pull/2315)
- chore: bump up `@hono/node-server` by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2323](https://togithub.com/honojs/hono/pull/2323)
- fix(body-limit): export `bodyLimit` for Deno by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2324](https://togithub.com/honojs/hono/pull/2324)
- fix(websocket): export WebSocket helper for Deno by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2325](https://togithub.com/honojs/hono/pull/2325)
- feat(cookie): Add Cookie bis condition check by
[@&#8203;Jxck](https://togithub.com/Jxck) in
[https://github.com/honojs/hono/pull/2314](https://togithub.com/honojs/hono/pull/2314)
- Next by [@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2327](https://togithub.com/honojs/hono/pull/2327)

##### New Contributors

- [@&#8203;Karibash](https://togithub.com/Karibash) made their first
contribution in
[https://github.com/honojs/hono/pull/2224](https://togithub.com/honojs/hono/pull/2224)
- [@&#8203;Datron](https://togithub.com/Datron) made their first
contribution in
[https://github.com/honojs/hono/pull/2269](https://togithub.com/honojs/hono/pull/2269)
- [@&#8203;Jxck](https://togithub.com/Jxck) made their first
contribution in
[https://github.com/honojs/hono/pull/2314](https://togithub.com/honojs/hono/pull/2314)

**Full Changelog**:
honojs/hono@v4.0.10...v4.1.0

### [`v4.0.10`](https://togithub.com/honojs/hono/releases/tag/v4.0.10)

[Compare
Source](https://togithub.com/honojs/hono/compare/v4.0.9...v4.0.10)

#### What's Changed

- fix (jsx/dom): keep ref.current value during lifecycle. by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2307](https://togithub.com/honojs/hono/pull/2307)

**Full Changelog**:
honojs/hono@v4.0.9...v4.0.10

### [`v4.0.9`](https://togithub.com/honojs/hono/releases/tag/v4.0.9)

[Compare
Source](https://togithub.com/honojs/hono/compare/v4.0.8...v4.0.9)

##### What's Changed

- fix(stream): remove async from onabort by
[@&#8203;sor4chi](https://togithub.com/sor4chi) in
[https://github.com/honojs/hono/pull/2293](https://togithub.com/honojs/hono/pull/2293)
- fix(types): use `{}` instead of Partial by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2305](https://togithub.com/honojs/hono/pull/2305)

**Full Changelog**:
honojs/hono@v4.0.8...v4.0.9

### [`v4.0.8`](https://togithub.com/honojs/hono/releases/tag/v4.0.8)

[Compare
Source](https://togithub.com/honojs/hono/compare/v4.0.7...v4.0.8)

#### What's Changed

- fix(ssg): allow `app: Hono<any, any, any>` for `toSSG` by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2272](https://togithub.com/honojs/hono/pull/2272)
- fix(ssg): preserve binary files as-is by
[@&#8203;berlysia](https://togithub.com/berlysia) in
[https://github.com/honojs/hono/pull/2275](https://togithub.com/honojs/hono/pull/2275)
- fix: fix comment by [@&#8203;nakasyou](https://togithub.com/nakasyou)
in
[https://github.com/honojs/hono/pull/2278](https://togithub.com/honojs/hono/pull/2278)
- fix(deno/jsx-precompile): use html() tag function if value is a
promise by [@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2283](https://togithub.com/honojs/hono/pull/2283)
- fix(devDependencies): Fix the problem of missing glob package by
[@&#8203;xx1124961758](https://togithub.com/xx1124961758) in
[https://github.com/honojs/hono/pull/2277](https://togithub.com/honojs/hono/pull/2277)

#### New Contributors

- [@&#8203;berlysia](https://togithub.com/berlysia) made their first
contribution in
[https://github.com/honojs/hono/pull/2275](https://togithub.com/honojs/hono/pull/2275)
- [@&#8203;xx1124961758](https://togithub.com/xx1124961758) made their
first contribution in
[https://github.com/honojs/hono/pull/2277](https://togithub.com/honojs/hono/pull/2277)

**Full Changelog**:
honojs/hono@v4.0.7...v4.0.8

### [`v4.0.7`](https://togithub.com/honojs/hono/releases/tag/v4.0.7)

[Compare
Source](https://togithub.com/honojs/hono/compare/v4.0.6...v4.0.7)

#### What's Changed

- fix(jsx/dom): import from correct file for avoiding circular
dependency by [@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2268](https://togithub.com/honojs/hono/pull/2268)
- fix(types): `MergeSchemaPath` supports regexp path params by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2271](https://togithub.com/honojs/hono/pull/2271)

**Full Changelog**:
honojs/hono@v4.0.6...v4.0.7

### [`v4.0.6`](https://togithub.com/honojs/hono/releases/tag/v4.0.6)

[Compare
Source](https://togithub.com/honojs/hono/compare/v4.0.5...v4.0.6)

#### What's Changed

- chore: use official deno installer by
[@&#8203;ryuapp](https://togithub.com/ryuapp) in
[https://github.com/honojs/hono/pull/2250](https://togithub.com/honojs/hono/pull/2250)
- fix(reg-exp-router): use matchers\[METHOD_NAME_ALL] as fallback for
unknown method by [@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2255](https://togithub.com/honojs/hono/pull/2255)
- test: add router/common.case.test.ts by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2258](https://togithub.com/honojs/hono/pull/2258)
- fix: assign value to element's property for input, textarea, select by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2261](https://togithub.com/honojs/hono/pull/2261)
- perf(jsx/dom): update textContent only when content changes by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2264](https://togithub.com/honojs/hono/pull/2264)
- fix(stream): avoid hang up when stream helper's callback throw error
by [@&#8203;sor4chi](https://togithub.com/sor4chi) in
[https://github.com/honojs/hono/pull/2262](https://togithub.com/honojs/hono/pull/2262)
- fix(serve-static): support extensionless files and refactor by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2260](https://togithub.com/honojs/hono/pull/2260)

**Full Changelog**:
honojs/hono@v4.0.5...v4.0.6

### [`v4.0.5`](https://togithub.com/honojs/hono/releases/tag/v4.0.5)

[Compare
Source](https://togithub.com/honojs/hono/compare/v4.0.4...v4.0.5)

#### What's Changed

- fix: Dot-containing paths do not correctly receive extension
completion. by [@&#8203;watany-dev](https://togithub.com/watany-dev) in
[https://github.com/honojs/hono/pull/2243](https://togithub.com/honojs/hono/pull/2243)
- refactor(context): skip jsx type import by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2248](https://togithub.com/honojs/hono/pull/2248)
- feat(jsx/dom): support namespace for svg and mathml elements by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2241](https://togithub.com/honojs/hono/pull/2241)

**Full Changelog**:
honojs/hono@v4.0.4...v4.0.5

### [`v4.0.4`](https://togithub.com/honojs/hono/releases/tag/v4.0.4)

[Compare
Source](https://togithub.com/honojs/hono/compare/v4.0.3...v4.0.4)

#### What's Changed

- docs(contribution): add install flag `--frozen-lockfile` by
[@&#8203;ryuapp](https://togithub.com/ryuapp) in
[https://github.com/honojs/hono/pull/2229](https://togithub.com/honojs/hono/pull/2229)
- refactor(jsx): shorten use hook a bit by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2231](https://togithub.com/honojs/hono/pull/2231)
- fix(jsx/dom): fix finding element to insert before by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2230](https://togithub.com/honojs/hono/pull/2230)
- feat(jsx): support HtmlEscapedString in html tag function by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2233](https://togithub.com/honojs/hono/pull/2233)
- chore(package.json): remove `@edge` for `compute` by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2235](https://togithub.com/honojs/hono/pull/2235)
- fix(jwt): import cookie helper correctly by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2238](https://togithub.com/honojs/hono/pull/2238)
- fix(ssg): path of already extention by
[@&#8203;watany-dev](https://togithub.com/watany-dev) in
[https://github.com/honojs/hono/pull/2236](https://togithub.com/honojs/hono/pull/2236)
- fix(validator): use the cached content by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2234](https://togithub.com/honojs/hono/pull/2234)

**Full Changelog**:
honojs/hono@v4.0.3...v4.0.4

### [`v4.0.3`](https://togithub.com/honojs/hono/releases/tag/v4.0.3)

[Compare
Source](https://togithub.com/honojs/hono/compare/v4.0.2...v4.0.3)

#### What's Changed

- fix(jsx-renderer): support async component by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2211](https://togithub.com/honojs/hono/pull/2211)
- fix(context): Inherit current status if not specified by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2218](https://togithub.com/honojs/hono/pull/2218)
- fix(hono-base): custom not found with middleware like compress by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2220](https://togithub.com/honojs/hono/pull/2220)
- refactor: jsx streaming by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2216](https://togithub.com/honojs/hono/pull/2216)

**Full Changelog**:
honojs/hono@v4.0.2...v4.0.3

### [`v4.0.2`](https://togithub.com/honojs/hono/releases/tag/v4.0.2)

[Compare
Source](https://togithub.com/honojs/hono/compare/v4.0.1...v4.0.2)

This is a patch release. But, it includes a minor feature.

SSG helper now generates HTML files only if they are handling GET or ALL
methods.

#### What's Changed

- fix: `createHandler` Response Types (handler x1) by
[@&#8203;nakasyou](https://togithub.com/nakasyou) in
[https://github.com/honojs/hono/pull/2192](https://togithub.com/honojs/hono/pull/2192)
- fix(jsx/dom): Do not call insertBefore if the element position does
not change by [@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2196](https://togithub.com/honojs/hono/pull/2196)
- refactor(ssg): filter SSG Route by
[@&#8203;watany-dev](https://togithub.com/watany-dev) in
[https://github.com/honojs/hono/pull/2181](https://togithub.com/honojs/hono/pull/2181)
- refactor(ssg): check `c.env` variables to disable/enable SSG by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2179](https://togithub.com/honojs/hono/pull/2179)
- Fix regex pattern with length limit at replaceUrlParam by
[@&#8203;the-fukui](https://togithub.com/the-fukui) in
[https://github.com/honojs/hono/pull/2193](https://togithub.com/honojs/hono/pull/2193)
- docs(readme): tweak by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2204](https://togithub.com/honojs/hono/pull/2204)
- fix(router): LinearRouter and PatternRouter support regexp quantifiers
by [@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2209](https://togithub.com/honojs/hono/pull/2209)

#### New Contributors

- [@&#8203;the-fukui](https://togithub.com/the-fukui) made their first
contribution in
[https://github.com/honojs/hono/pull/2193](https://togithub.com/honojs/hono/pull/2193)

**Full Changelog**:
honojs/hono@v4.0.1...v4.0.2

### [`v4.0.1`](https://togithub.com/honojs/hono/releases/tag/v4.0.1)

[Compare
Source](https://togithub.com/honojs/hono/compare/v4.0.0...v4.0.1)

#### What's Changed

- fix(context): remove duplicate definition of render method by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2191](https://togithub.com/honojs/hono/pull/2191)
- refactor(ssg): create request from saved requestInit in order to avoid
memory leak warnings by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2186](https://togithub.com/honojs/hono/pull/2186)
- feat(sse): Allow sending retry for SSE connection by
[@&#8203;watany-dev](https://togithub.com/watany-dev) in
[https://github.com/honojs/hono/pull/2188](https://togithub.com/honojs/hono/pull/2188)

**Full Changelog**:
honojs/hono@v4.0.0...v4.0.1

### [`v4.0.0`](https://togithub.com/honojs/hono/releases/tag/v4.0.0)

[Compare
Source](https://togithub.com/honojs/hono/compare/v3.12.12...v4.0.0)

> Going to full-stack.

Hono v4.0.0 is out! This major update includes some breaking changes and
the addition of three major features.

1.  Static Site Generation
2.  Client Components
3.  File-based Routing

So Hono is going to full-stack. Let's take a look at the three features.

#### 1. Static Site Generation

We introduce SSG Helper. With it you can generate static pages of your
Hono applications.

To use this, create a separate file `build.ts` from the application and
call the `toSSG()` function in it.

```ts
import fs from 'node:fs/promises'
import { toSSG } from 'hono/ssg'
import app from './src/index'

toSSG(app, fs)
```

There are adapters for Bun and Deno, so you can write shorter for Bun,
for example.

```ts
import { toSSG } from 'hono/bun'
import app from './src/index'

toSSG(app)
```

And, just run it.

```ts
bun ./build.ts
```

Then HTML is generated.

```txt
$ ls static
about.html  index.html
```

You can easily deploy this page to Cloudflare Pages, etc.

```txt
$ wrangler pages deploy static
```

##### With Vite

We have created a plugin
[`@hono/vite-ssg`](https://togithub.com/honojs/vite-plugins/tree/main/packages/ssg)
for Vite. By using this, you will be able to develop and build a static
sites with just the `vite` command.

The configuration is the following:

```ts
import build from '@&#8203;hono/vite-ssg'
import devServer from '@&#8203;hono/vite-dev-server'
import { defineConfig } from 'vite'

export default defineConfig({
  plugins: [
    build(),
    devServer({
      entry: 'src/index.tsx'
    })
  ]
})
```

If you want to develope, just run the command:

```txt
vite
```

If you want to build, just run the command:

```txt
vite build
```

In combination with the deployment mentioned above to Cloudflare Pages,
you can develop, SSG build, and deploy non-stop. And each of them is
extremely fast (the video is 2x faster).

![Screen
cast](https://togithub.com/honojs/hono/assets/10682/4421cb84-fd04-46a3-a6bf-e955fcbdf388)

#### 2. Client Components

`hono/jsx` was originally designed to run server-side as an alternative
to template engines such as Mustache. Server-side JSX is an interesting
experiment, creating a new stack to combine with HTMX and Alpine.js. But
that's not all.

Now, `hono/jsx` runs on the client as well. We call it `hono/jsx/dom` or
Client Components.

The exact same code as React runs with Hono's JSX.

```tsx
import { useState } from 'hono/jsx'
import { render } from 'hono/jsx/dom'

function Counter() {
  const [count, setCount] = useState(0)
  return (
    <div>
      <p>Count: {count}</p>
      <button onClick={() => setCount(count + 1)}>Increment</button>
    </div>
  )
}

function App() {
  return (
    <html>
      <body>
        <Counter />
      </body>
    </html>
  )
}

const root = document.getElementById('root')
render(<App />, root)
```

The Hooks listed below are also implemented and you can create Client
Components just like in React.

-   useContext
-   useEffect
-   useState
-   useCallback
-   use
-   startTransition
-   useDeferredValue
-   useMemo
-   useLayoutEffect
-   Memo
-   isValidElement

##### `startViewTransition` family

In addition, the original APIs, `startViewTransition` family make the
View Transition API easy to use.

```tsx
import { useState, startViewTransition } from 'hono/jsx'
import { Style, css, keyframes } from 'hono/css'

const fadeIn = keyframes`
  from { opacity: 0; }
  to { opacity: 1; }
`

const App = () => {
  const [showTitleImage, setShowTitleImage] = useState(false)

  return (
    <>
      <button onClick={() => startViewTransition(() => setShowTitleImage((state) => !state))}>Click!</button>
      <div>
        {!showTitleImage ? (
          <img src="https://hono.dev/images/logo.png" />
        ) : (
          <div
            class={css`
              animation: ${fadeIn} 1s;
              background: url('https://hono.dev/images/logo-large.png');
              background-size: contain;
              background-repeat: no-repeat;
              background-position: center;
              width: 500px;
              height: 200px;
            `}
          />
        )}
      </div>
    </>
  )
}
```

You can easily create the animation.


![SC](https://togithub.com/honojs/hono/assets/10682/d64b5120-2f31-4227-bcad-19f2d0b2b90a)

##### Ultra-small

The `hono/jsx/dom` is fast and ultra-small. It has a smaller JSX runtime
dedicated to the DOM in addition to the common server and client ones.
Just specify `hono/jsx/dom` instead of `hono/jsx` in `tsconfig.json`.

```json
"jsx": "react-jsx",
"jsxImportSource": "hono/jsx/dom"
```

The above counter example is **2.8KB** with Brotli compression.


![SS](https://togithub.com/honojs/hono/assets/10682/813ea09e-550d-49f2-bd51-4a205d38dee7)

In comparison, React is **47.3 KB** for the same thing.


![SS](https://togithub.com/honojs/hono/assets/10682/915c1894-d993-4a31-b506-e14d2a839171)

#### 3. File-based Routing

Last is File-based Routing. This is not included in the hono package,
but is provided in a separate package.

It is named **HonoX**.

##### HonoX

HonoX has the following features.

- **File-based routing** - You can create a large application like
Next.js.
-   **Fast SSR** - Rendering is ultra-fast thanks to Hono.
- **BYOR** - You can bring your own renderer, not only one using
hono/jsx.
- **Islands hydration** - If you want interactions, create an island.
JavaScript is hydrated only for it.
- **Middleware** - It works as Hono, so you can use a lot of Hono's
middleware.

You can try it now. One of create-hono's starter templates named
"***x-base***" uses HonoX.

For detailed usage, please see the following HonoX repository.

https://github.com/honojs/honox

#### The core is still tiny

The addition of this feature has no impact on the core. "Hello World" in
hono/tiny is still small, only 12KB minified.

#### Other new features

- feat(base): Set Default Path to `'*'` for `app.use()` -
[https://github.com/honojs/hono/pull/1753](https://togithub.com/honojs/hono/pull/1753)
- feat(hono-base): `app.on` supports multiple paths -
[https://github.com/honojs/hono/pull/1923](https://togithub.com/honojs/hono/pull/1923)
- feat(css): Introduce pseudo global selector and class name based
extend syntax -
[https://github.com/honojs/hono/pull/1928](https://togithub.com/honojs/hono/pull/1928)
- feat(jsx-renderer): Nested Layouts via Renderer -
[https://github.com/honojs/hono/pull/1945](https://togithub.com/honojs/hono/pull/1945)
- feat!: validator throws error rathar than return `c.json()` -
[https://github.com/honojs/hono/pull/2021](https://togithub.com/honojs/hono/pull/2021)
- feat: introduce Accepts Helper -
[https://github.com/honojs/hono/pull/2001](https://togithub.com/honojs/hono/pull/2001)
- feat(serve-static): `mimes` option for serve-static -
[https://github.com/honojs/hono/pull/2094](https://togithub.com/honojs/hono/pull/2094)
- feat!(validator): supports transformation -
[https://github.com/honojs/hono/pull/2130](https://togithub.com/honojs/hono/pull/2130)

#### Breaking Changes

There are several breaking changes. Please see the Migration Guide
below.

https://github.com/honojs/hono/blob/main/docs/MIGRATION.md

#### Thanks

Thanks to all contributors. Great job on all the hard work!

#### All Updates

- feat(base): Set Default Path to '\*' for app.use() by
[@&#8203;watany-dev](https://togithub.com/watany-dev) in
[https://github.com/honojs/hono/pull/1753](https://togithub.com/honojs/hono/pull/1753)
- feat: Introduce jsx/dom by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/1917](https://togithub.com/honojs/hono/pull/1917)
- ci: enables CI in the v4 branch by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/1933](https://togithub.com/honojs/hono/pull/1933)
- feat(hono-base): `app.on` supports multiple paths by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/1923](https://togithub.com/honojs/hono/pull/1923)
- feat!: remove deprecated features by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/1934](https://togithub.com/honojs/hono/pull/1934)
- fix(jsx/dom): fix cleanup for deps by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/1936](https://togithub.com/honojs/hono/pull/1936)
- refactor(jsx/dom): replace existing content by render() by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/1938](https://togithub.com/honojs/hono/pull/1938)
- feat(css): Introduce pseudo global selector and class name based
extend syntax by [@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/1928](https://togithub.com/honojs/hono/pull/1928)
- feat: Introducing a New SSG Adaptor/Helper by
[@&#8203;watany-dev](https://togithub.com/watany-dev) in
[https://github.com/honojs/hono/pull/1904](https://togithub.com/honojs/hono/pull/1904)
- chore(helper): Add experimental flag the SSG features by
[@&#8203;watany-dev](https://togithub.com/watany-dev) in
[https://github.com/honojs/hono/pull/1967](https://togithub.com/honojs/hono/pull/1967)
- refactor: remove unnecessary `import` by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/1969](https://togithub.com/honojs/hono/pull/1969)
- refactor: remove and fix comments by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/1970](https://togithub.com/honojs/hono/pull/1970)
- ci: remove lagon runtime tests and other lagon things by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/1971](https://togithub.com/honojs/hono/pull/1971)
- refactor(ssg): SSG works without `node:path` by
[@&#8203;nakasyou](https://togithub.com/nakasyou) in
[https://github.com/honojs/hono/pull/1965](https://togithub.com/honojs/hono/pull/1965)
- feat(factory): remove `deprecated` from `Factory` and `createHandlers`
by [@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/1979](https://togithub.com/honojs/hono/pull/1979)
- fix(ssg): fix path parser bug & refactor code by
[@&#8203;EdamAme-x](https://togithub.com/EdamAme-x) in
[https://github.com/honojs/hono/pull/1976](https://togithub.com/honojs/hono/pull/1976)
- feat(ssg): Implement Dynamic File Extension on MIME Type and Enhanced
Response Handling by
[@&#8203;watany-dev](https://togithub.com/watany-dev) in
[https://github.com/honojs/hono/pull/1968](https://togithub.com/honojs/hono/pull/1968)
- feat(jsx/dom): rewrite renderer to use virtual tree by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/1981](https://togithub.com/honojs/hono/pull/1981)
- refactor: faster for loop by
[@&#8203;EdamAme-x](https://togithub.com/EdamAme-x) in
[https://github.com/honojs/hono/pull/1989](https://togithub.com/honojs/hono/pull/1989)
- feat!(cloudflare-workers): make `manifest` required by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/1984](https://togithub.com/honojs/hono/pull/1984)
- chore: enables lint and format for `.tsx` by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/1994](https://togithub.com/honojs/hono/pull/1994)
- feat(jsx/dom): provide jsx-runtime and jsx-dev-runtime via jsx/dom by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/1986](https://togithub.com/honojs/hono/pull/1986)
- fix(types): correct `c.get()` inference by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/1995](https://togithub.com/honojs/hono/pull/1995)
- feat(jsx/dom): startTransition() and useTransition() by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/1996](https://togithub.com/honojs/hono/pull/1996)
- refactor(jsx): export components and hook function from top level
'hono/jsx' by [@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/1997](https://togithub.com/honojs/hono/pull/1997)
- feat(ssg): Ignore Dynamic Route by
[@&#8203;watany-dev](https://togithub.com/watany-dev) in
[https://github.com/honojs/hono/pull/1990](https://togithub.com/honojs/hono/pull/1990)
- feat: Added `ssgParams` middleware by
[@&#8203;nakasyou](https://togithub.com/nakasyou) in
[https://github.com/honojs/hono/pull/1960](https://togithub.com/honojs/hono/pull/1960)
- fix(ssg): fixed `isDynamicRoute` and `ssgParams` matter by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2006](https://togithub.com/honojs/hono/pull/2006)
- feat(jsx/dom): support createContext and useContext in jsx/dom by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/1999](https://togithub.com/honojs/hono/pull/1999)
- refactor(jsx/dom): make `useTransition()` handling more simple by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2003](https://togithub.com/honojs/hono/pull/2003)
- chore(package.json): specify the config in `test:deno` by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2014](https://togithub.com/honojs/hono/pull/2014)
- chore(runtime-test): add `deno.lock` by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2015](https://togithub.com/honojs/hono/pull/2015)
- fix(jsx/dom): find "insertBefore" node from next node list if not
found by [@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2017](https://togithub.com/honojs/hono/pull/2017)
- feat!: validator throws error rathar than `return c.json()` by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2021](https://togithub.com/honojs/hono/pull/2021)
- refactor(ssg): Removal of Libraries Dependent on Node.js by
[@&#8203;watany-dev](https://togithub.com/watany-dev) in
[https://github.com/honojs/hono/pull/2012](https://togithub.com/honojs/hono/pull/2012)
- feat!(deno): move middleware to helper by
[@&#8203;watany-dev](https://togithub.com/watany-dev) in
[https://github.com/honojs/hono/pull/2027](https://togithub.com/honojs/hono/pull/2027)
- fix(SSG): Correct extension of the file output by
[@&#8203;watany-dev](https://togithub.com/watany-dev) in
[https://github.com/honojs/hono/pull/2029](https://togithub.com/honojs/hono/pull/2029)
- feat(jsx/dom): Introduce startViewTransition() by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2020](https://togithub.com/honojs/hono/pull/2020)
- fix(ssg): Remove ArrayBuffer from FileSystemModule's writeFile by
[@&#8203;watany-dev](https://togithub.com/watany-dev) in
[https://github.com/honojs/hono/pull/2032](https://togithub.com/honojs/hono/pull/2032)
- refactor(jsx/dom): invoke update() in microtask by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2036](https://togithub.com/honojs/hono/pull/2036)
- feat: introduce Accepts Helper by
[@&#8203;sor4chi](https://togithub.com/sor4chi) in
[https://github.com/honojs/hono/pull/2001](https://togithub.com/honojs/hono/pull/2001)
- feat: improve `ssgParams` flexibility by
[@&#8203;sor4chi](https://togithub.com/sor4chi) in
[https://github.com/honojs/hono/pull/2024](https://togithub.com/honojs/hono/pull/2024)
- refactor(types): name them `BlankSchema` or `BlankInput` by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2040](https://togithub.com/honojs/hono/pull/2040)
- feat(deno): export accpet helper for deno by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2041](https://togithub.com/honojs/hono/pull/2041)
- docs: Add JSDoc by [@&#8203;nabeken5](https://togithub.com/nabeken5)
in
[https://github.com/honojs/hono/pull/1916](https://togithub.com/honojs/hono/pull/1916)
- fix!(types): Fix context type when chaining routes with middlewares by
[@&#8203;agatan](https://togithub.com/agatan) in
[https://github.com/honojs/hono/pull/2046](https://togithub.com/honojs/hono/pull/2046)
- refactor: rename accept to accepts by
[@&#8203;EdamAme-x](https://togithub.com/EdamAme-x) in
[https://github.com/honojs/hono/pull/2063](https://togithub.com/honojs/hono/pull/2063)
- fix: use DOCTYPE by default by
[@&#8203;EdamAme-x](https://togithub.com/EdamAme-x) in
[https://github.com/honojs/hono/pull/2064](https://togithub.com/honojs/hono/pull/2064)
- fix(ssg): Uniformly Convert Paths Ending with Slash to 'index.ext'
Format by [@&#8203;watany-dev](https://togithub.com/watany-dev) in
[https://github.com/honojs/hono/pull/2056](https://togithub.com/honojs/hono/pull/2056)
- feat: Introduce `useViewTransition()` hook and `viewTransition()`
helper by [@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2053](https://togithub.com/honojs/hono/pull/2053)
- feat(ssg): support Improve Hook Handling by
[@&#8203;watany-dev](https://togithub.com/watany-dev) in
[https://github.com/honojs/hono/pull/2054](https://togithub.com/honojs/hono/pull/2054)
- fix: await generate hook by
[@&#8203;watany-dev](https://togithub.com/watany-dev) in
[https://github.com/honojs/hono/pull/2074](https://togithub.com/honojs/hono/pull/2074)
- fix:(ssg): make 'files' mandatory in ToSSGResult by
[@&#8203;watany-dev](https://togithub.com/watany-dev) in
[https://github.com/honojs/hono/pull/2071](https://togithub.com/honojs/hono/pull/2071)
- feat(types): explicitly specify statusCode by
[@&#8203;EdamAme-x](https://togithub.com/EdamAme-x) in
[https://github.com/honojs/hono/pull/2073](https://togithub.com/honojs/hono/pull/2073)
- chore: vitest test.pool to 'forks' by
[@&#8203;watany-dev](https://togithub.com/watany-dev) in
[https://github.com/honojs/hono/pull/2098](https://togithub.com/honojs/hono/pull/2098)
- goodbye: lagon by [@&#8203;EdamAme-x](https://togithub.com/EdamAme-x)
in
[https://github.com/honojs/hono/pull/2087](https://togithub.com/honojs/hono/pull/2087)
- refactor: faster for loop in jsx/dom by
[@&#8203;EdamAme-x](https://togithub.com/EdamAme-x) in
[https://github.com/honojs/hono/pull/2092](https://togithub.com/honojs/hono/pull/2092)
- refactor: "if" on one line and deletion of unneeded variables by
[@&#8203;EdamAme-x](https://togithub.com/EdamAme-x) in
[https://github.com/honojs/hono/pull/2093](https://togithub.com/honojs/hono/pull/2093)
- fix: add typesVersions of accepts helper by
[@&#8203;sor4chi](https://togithub.com/sor4chi) in
[https://github.com/honojs/hono/pull/2096](https://togithub.com/honojs/hono/pull/2096)
- chore: use Bun as a package manager by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2105](https://togithub.com/honojs/hono/pull/2105)
- docs(contributing): add `Installing dependencies` by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2113](https://togithub.com/honojs/hono/pull/2113)
- feat(serve-static): `mimes` option for serve-static by
[@&#8203;ryuapp](https://togithub.com/ryuapp) in
[https://github.com/honojs/hono/pull/2094](https://togithub.com/honojs/hono/pull/2094)
- feat(ssg): introduce `disableSSG` and `onlySSG` by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2104](https://togithub.com/honojs/hono/pull/2104)
- feat!(mime): reduce default mimes by
[@&#8203;ryuapp](https://togithub.com/ryuapp) in
[https://github.com/honojs/hono/pull/2119](https://togithub.com/honojs/hono/pull/2119)
- feat(types): better `c.var` type by
[@&#8203;Kyiro](https://togithub.com/Kyiro) in
[https://github.com/honojs/hono/pull/2121](https://togithub.com/honojs/hono/pull/2121)
- fix(jsx-renderer): correct nested layouts by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2128](https://togithub.com/honojs/hono/pull/2128)
- feat!(validator): supports transformation by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2130](https://togithub.com/honojs/hono/pull/2130)
- feat(jsx/dom): more react staff by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2132](https://togithub.com/honojs/hono/pull/2132)
- refactor(jsx): Remove unused HONO_COMPONENT feature by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2139](https://togithub.com/honojs/hono/pull/2139)
- fix(html): Remove circular dependencies in `hono/html` by
[@&#8203;javascripter](https://togithub.com/javascripter) in
[https://github.com/honojs/hono/pull/2143](https://togithub.com/honojs/hono/pull/2143)
- Merge main into v4 by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2145](https://togithub.com/honojs/hono/pull/2145)
- feat(jsx): "className" is now an alias for "class" by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2146](https://togithub.com/honojs/hono/pull/2146)
- fix!(deno): put SSG helper into `helper.ts` by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2150](https://togithub.com/honojs/hono/pull/2150)
- refactor(jsx): Tidyup the types to be exported by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2151](https://togithub.com/honojs/hono/pull/2151)
- fix(types): `MergeSchemePath` infers param types correctly by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2152](https://togithub.com/honojs/hono/pull/2152)
- fix(types): `MergeSchemaPath` infer inputs not only params by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2154](https://togithub.com/honojs/hono/pull/2154)
- Fix/function for attribute by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2161](https://togithub.com/honojs/hono/pull/2161)
- fix(jsx): The third argument of jsx(), key, is optional by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2162](https://togithub.com/honojs/hono/pull/2162)
- Feat/more jsx event by
[@&#8203;usualoma](https://togithub.com/usualoma) in
[https://github.com/honojs/hono/pull/2165](https://togithub.com/honojs/hono/pull/2165)
- docs: update the migration guide for releasing v4 by
[@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2159](https://togithub.com/honojs/hono/pull/2159)
- perf(mime): make `getExtension()` fast by
[@&#8203;ryuapp](https://togithub.com/ryuapp) in
[https://github.com/honojs/hono/pull/2168](https://togithub.com/honojs/hono/pull/2168)
- v4 by [@&#8203;yusukebe](https://togithub.com/yusukebe) in
[https://github.com/honojs/hono/pull/2167](https://togithub.com/honojs/hono/pull/2167)

#### New Contributors

- [@&#8203;EdamAme-x](https://togithub.com/EdamAme-x) made their first
contribution in
[https://github.com/honojs/hono/pull/1976](https://togithub.com/honojs/hono/pull/1976)
- [@&#8203;nabeken5](https://togithub.com/nabeken5) made their first
contribution in
[https://github.com/honojs/hono/pull/1916](https://togithub.com/honojs/hono/pull/1916)
- [@&#8203;Kyiro](https://togithub.com/Kyiro) made their first
contribution in
[https://github.com/honojs/hono/pull/2121](https://togithub.com/honojs/hono/pull/2121)
- [@&#8203;javascripter](https://togithub.com/javascripter) made their
first contribution in
[https://github.com/honojs/hono/pull/2143](https://togithub.com/honojs/hono/pull/2143)

**Full Changelog**:
honojs/hono@v3.12.10...v4.0.0

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