## 关于版本 { #about-versions }

遵循语义版本控制约定，任何低于`1.0.0`的版本都可能会添加 breaking changes。

FastAPI 还遵循这样的约定：任何"PATCH"版本更改都是为了bug修复和non-breaking changes。

/// tip | 提示

"PATCH"是最后一个数字，例如，在`0.2.3`中，PATCH版本是`3`。

///

因此，你应该能够固定到如下版本：

```txt
fastapi>=0.45.0,<0.46.0
```

"MINOR"版本中会添加breaking changes和新功能。

/// tip | 提示

"MINOR"是中间的数字，例如，在`0.2.3`中，MINOR版本是`2`。

///

Make sure you use a supported label from the [latest-changes list of labels](https://github.com/tiangolo/latest-changes#using-labels):

* `breaking`: Breaking Changes
    * Existing code will break if they update the version without changing their code. This rarely happens, so this label is not frequently used.
* `security`: Security Fixes

  @Override
  protected void setUp() throws Exception {
    map = MutableClassToInstanceMap.create();
  }

  public void testConstraint() {
    /*
     * We'll give ourselves a pass on testing all the possible ways of breaking the constraint,
     * because we know that newClassMap() is implemented using ConstrainedMap which is itself
     * well-tested. A purist would object to this, but what can I say, we're dirty cheaters.
     */

 * thrown and no [WebSocketListener.onFailure] callback is triggered, so callers should always check
 * the return value of `send()`.
 *
 * Use [queueSize] to monitor backpressure before sending. For large payloads, consider breaking
 * them into smaller messages or using HTTP requests instead.
 */
interface WebSocket {
  /** Returns the original request that initiated this web socket. */
  fun request(): Request

  /**

### Breaking Changes

The TensorBoard dependency is no longer included by default. If you use `tf.summary.*` APIs or `tf.keras.callbacks.TensorBoard`, please install the `tensorboard` package separately (`pip install tensorboard`). Otherwise, TensorFlow will raise an ImportError.

* <DOCUMENT BREAKING CHANGES HERE>
* <THIS SECTION SHOULD CONTAIN API, ABI AND BEHAVIORAL BREAKING CHANGES>

### Known Caveats

 * priority. If you need to enforce an ordering, you can define custom classes or comparators that
 * use a secondary key to break ties in primary priority values. For example, here is a class that
 * applies first-in-first-out tie-breaking to comparable elements. To use it, you would insert a
 * {@code new FIFOEntry(anEntry)} instead of a plain entry object.
 *
 * <pre>{@code
 * class FIFOEntry<E extends Comparable<? super E>> implements Comparable<FIFOEntry<E>> {

These last **three consecutive releases** are independent so that you can **migrate gradually**:

* First to FastAPI `0.68.2`, with no breaking changes, but upgrading all the sub-dependencies.
* Next to FastAPI `0.69.0`, which upgrades Starlette to `0.15.0`, with AnyIO support, and a higher chance of having breaking changes in your code.

## Sürümler Hakkında { #about-versions }

Semantic Versioning kurallarına göre, `1.0.0` altındaki herhangi bir sürüm breaking change içerebilir.

FastAPI ayrıca "PATCH" sürüm değişikliklerinin bug fix'ler ve breaking olmayan değişiklikler için kullanılması kuralını da takip eder.

/// tip | İpucu

"PATCH" son sayıdır. Örneğin `0.2.3` içinde PATCH sürümü `3`'tür.

///

* Gunicorn Worker
* worker process
* worker class
* workload

* deployment
* deploy etmek

* SDK
* software development kit

* `APIRouter`
* `requirements.txt`
* Bearer Token
* breaking change
* bug
* button
* callable
* code
* commit
* context manager
* coroutine
* database session
* disk
* domain
* engine
* fake X
* HTTP GET method
* item
* library

* die Workerklasse
* die Workload

* das Deployment
* deployen

* das SDK
* das Software Development Kit

* der `APIRouter`
* die `requirements.txt`
* das Bearer-Token
* der Breaking Change
* der Bug
* der Button
* das Callable
* der Code
* der Commit
* der Contextmanager
* die Coroutine
* die Datenbanksession
* die Festplatte
* die Domain
* die Engine
* das Fake-X