## Tests { #tests }

Make sure you have [tests](../tutorial/testing.md){.internal-link target=_blank} for your app and you run them on continuous integration (CI).

This way, you can do the upgrade and make sure everything is still working as expected.

## `bump-pydantic` { #bump-pydantic }

////

## Upgrade `pip` { #upgrade-pip }

/// tip

If you use <a href="https://github.com/astral-sh/uv" class="external-link" target="_blank">`uv`</a> you would use it to install things instead of `pip`, so you don't need to upgrade `pip`. 😎

///

If you are using `pip` to install packages (it comes by default with Python), you should **upgrade** it to the latest version.

 * that it is not "API-frozen."
 *
 * <p>It is generally safe for <i>applications</i> to depend on beta APIs, at the cost of some extra
 * work during upgrades. However it is generally inadvisable for <i>libraries</i> (which get
 * included on users' CLASSPATHs, outside the library developers' control) to do so.
 *
 * @author Kevin Bourrillion
 */
@Retention(RetentionPolicy.CLASS)

 * that it is not "API-frozen."
 *
 * <p>It is generally safe for <i>applications</i> to depend on beta APIs, at the cost of some extra
 * work during upgrades. However it is generally inadvisable for <i>libraries</i> (which get
 * included on users' CLASSPATHs, outside the library developers' control) to do so.
 *
 * @author Kevin Bourrillion
 */
@Retention(RetentionPolicy.CLASS)

    public static final String MVNSHELL_CMD = "mvnsh";
    public static final String MVNSHELL_NAME = "Maven Shell Tool";

    public static final String MVNUP_CMD = "mvnup";
    public static final String MVNUP_NAME = "Maven Upgrade Tool";

@REM specific language governing permissions and limitations
@REM under the License.

@REM -----------------------------------------------------------------------------
@REM Apache Maven Upgrade Script
@REM
@REM Environment Variable Prerequisites
@REM
@REM   JAVA_HOME           (Optional) Points to a Java installation.
@REM   MAVEN_OPTS          (Optional) Java runtime options used when Maven is executed.

# specific language governing permissions and limitations
# under the License.

# -----------------------------------------------------------------------------
# Apache Maven Upgrade Script
#
# Environment Variable Prerequisites
#
#   JAVA_HOME           (Optional) Points to a Java installation.
#   MAVEN_OPTS          (Optional) Java runtime options used when Maven is executed.

You can learn more about [FastAPI versions and how to pin and upgrade them](https://fastapi.tiangolo.com/deployment/versions/) for your project in the docs.

## Reporting a Vulnerability

import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

/**
 * Unit tests for the {@link AbstractUpgradeGoal} class.
 * Tests the shared functionality across upgrade goals including option handling,
 * .mvn directory creation, and upgrade orchestration.
 */
@DisplayName("AbstractUpgradeGoal")
class AbstractUpgradeGoalTest {

    @TempDir
    Path tempDir;

    private TestableAbstractUpgradeGoal upgradeGoal;

      this.settings = settings
    }

  fun withWebSocketUpgrade(listener: WebSocketListener) =
    apply {
      status = "HTTP/1.1 101 Switching Protocols"
      setHeader("Connection", "Upgrade")
      setHeader("Upgrade", "websocket")
      body = null
      webSocketListener = listener
    }

  override fun toString(): String = status

  companion object {