## Pin your `fastapi` version { #pin-your-fastapi-version }

The first thing you should do is to "pin" the version of **FastAPI** you are using to the specific latest version that you know works correctly for your application.

For example, let's say you are using version `0.112.0` in your app.

If you use a `requirements.txt` file you could specify the version with:

```txt

<?xml version="1.0" encoding="UTF-8"?>
<metadata>
  <groupId>org.codelibs.fess</groupId>
  <artifactId>fess-crawler-db-mysql</artifactId>
  <versioning>
    <latest>1.0.12</latest>
    <release>1.0.12</release>
    <versions>
      <version>1.0.0</version>
      <version>1.0.1</version>
      <version>1.0.2</version>
      <version>1.0.3</version>
      <version>1.0.4</version>
      <version>1.0.5</version>
      <version>1.0.6</version>

<?xml version="1.0" encoding="UTF-8"?>
<metadata>
  <groupId>org.codelibs.fess</groupId>
  <artifactId>fess-crawler-playwright</artifactId>
  <versioning>
    <latest>14.14.0</latest>
    <release>14.14.0</release>
    <versions>
      <version>14.5.0</version>
      <version>14.6.0</version>
      <version>14.6.1</version>
      <version>14.6.2</version>
      <version>14.6.3</version>
      <version>14.7.0</version>

Learn more about it below. 👇

## Versions

The latest version of FastAPI is supported.

You are encouraged to [write tests](https://fastapi.tiangolo.com/tutorial/testing/) for your application and update your FastAPI version frequently after ensuring that your tests are passing. This way you will benefit from the latest features, bug fixes, and **security fixes**.

    strategy:
      matrix:
        go-version: [1.24.x]
        os: [ubuntu-latest]

    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-go@v5
        with:
          go-version: ${{ matrix.go-version }}
          check-latest: true
      - name: Start upgrade tests
        run: |

{* ../../docs_src/dataclasses/tutorial001.py hl[1,7:12,19:20] *}

Esto sigue siendo soportado gracias a **Pydantic**, ya que tiene <a href="https://docs.pydantic.dev/latest/concepts/dataclasses/#use-of-stdlib-dataclasses-with-basemodel" class="external-link" target="_blank">soporte interno para `dataclasses`</a>.

{* ../../docs_src/dataclasses/tutorial001.py hl[1,7:12,19:20] *}

Isso ainda é suportado graças ao **Pydantic**, pois ele tem <a href="https://docs.pydantic.dev/latest/concepts/dataclasses/#use-of-stdlib-dataclasses-with-basemodel" class="external-link" target="_blank">suporte interno para `dataclasses`</a>.

permissions:
  contents: write
  pull-requests: write

jobs:
  update-jdks:
    if: github.repository == 'gradle/gradle'
    permissions:
      contents: write
      pull-requests: write
    runs-on: ubuntu-latest
    steps:
      - name: Checkout repository
        uses: actions/checkout@v5
        with:
          persist-credentials: false
          fetch-depth: 0
      - name: Update jdks.yaml

  sqlserver:
    strategy:
      matrix:
        go: ['1.23', '1.24']
        platform: [ubuntu-latest] # can not run test in macOS and windows
    runs-on: ${{ matrix.platform }}

    services:
      mssql:
        image: mcr.microsoft.com/mssql/server:2022-latest
        env:
          TZ: Asia/Shanghai
          ACCEPT_EULA: Y
          MSSQL_SA_PASSWORD: LoremIpsum86
        ports:

<?xml version="1.0" encoding="UTF-8"?>
<metadata>
  <groupId>org.codelibs.fess</groupId>
  <artifactId>fess-crawler-parent</artifactId>
  <versioning>
    <latest>14.14.0</latest>
    <release>14.14.0</release>
    <versions>
      <version>1.0.0</version>
      <version>1.0.1</version>
      <version>1.0.2</version>
      <version>1.0.3</version>
      <version>1.0.4</version>
      <version>1.0.5</version>
      <version>1.0.6</version>