Plugins should avoid these classes and be updated to use only Maven3 dependencies (and require Maven3): see
 {{{https://cwiki.apache.org/confluence/display/MAVEN/Plugin+migration+to+Maven3+dependencies} Plugin migration to Maven3 dependencies}}

If you have an old FastAPI app with Pydantic v1, here I'll show you how to migrate it to Pydantic v2, and the **features in FastAPI 0.119.0** to help you with a gradual migration.

## Official Guide { #official-guide }

Pydantic has an official [Migration Guide](https://docs.pydantic.dev/latest/migration/) from v1 to v2.

It also includes what has changed, how validations are now more correct and strict, possible caveats, etc.

//
// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package config

// One time migration code section

// SetRegion - One time migration code needed, for migrating from older config to new for server Region.
func SetRegion(c Config, name string) {
	if name == "" {
		return
	}
	c[RegionSubSys][Default] = KVS{
		KV{

// https://github.com/gradle/gradle-private/issues/4528
// Trigger ReadyForNightly and ReadyForRelease for provider-api-migration/public-api-changes branch
// TODO: remove this after the branch is merged
const val PROVIDER_API_MIGRATION_BRANCH = "gradle10/provider-api-migration"
const val BOT_DAILY_UPGRADLE_WRAPPER_BRANCH = "devprod/upgrade-to-latest-wrapper"

const val DEPENDABOT_BRANCH_PATTERN = "dependabot/*"

# Synchronize all pushes to 'master' branch with 'main' branch to facilitate migration
name: "Sync main branch"
on:
  push:
    branches:
      - master

jobs:
  sync_latest_from_upstream:
    runs-on: ubuntu-latest
    name: Sync latest commits from master branch

    steps:
      - name: Checkout target repo
        uses: actions/checkout@v2
        with:
          ref: main

      - name: Sync upstream changes

 *
 * <p>Key features include:</p>
 * <ul>
 *   <li>Project upgrade capabilities</li>
 *   <li>Dependency version management</li>
 *   <li>Configuration migration</li>
 *   <li>Interactive upgrade workflows</li>
 * </ul>
 *
 * @see org.apache.maven.api.cli.Tools#MVNUP_CMD
 * @see org.apache.maven.api.cli.Tools#MVNUP_NAME
 * @since 4.0.0
 */

⚠️ Do not install this package. ⚠️

This package, `fastapi-slim`, does nothing other than depend on `fastapi`.

All the functionality has been integrated into `fastapi`.

The only reason this package exists is as a migration path for old projects that used to depend on `fastapi-slim`, so that they can get the latest version of `fastapi`.

You **should not** install this package.

Install instead:

```bash
pip install fastapi
```

// and format-xl.go for details.

// Ideally we will never have a situation where we will have to change the
// fields of this struct and deal with related migration.
type formatMetaV1 struct {
	// Version of the format config.
	Version string `json:"version"`
	// Format indicates the backend format type, supports two values 'xl' and 'fs'.
	Format string `json:"format"`

import (
	"github.com/minio/minio/internal/config"
)

// Legacy OPA envs
const (
	EnvIamOpaURL       = "MINIO_IAM_OPA_URL"
	EnvIamOpaAuthToken = "MINIO_IAM_OPA_AUTHTOKEN"
)

// SetPolicyOPAConfig - One time migration code needed, for migrating from older config to new for PolicyOPAConfig.
func SetPolicyOPAConfig(s config.Config, opaArgs Args) {
	if opaArgs.URL == nil || opaArgs.URL.String() == "" {
		// Do not enable if opaArgs was empty.

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package storageclass

import (
	"github.com/minio/minio/internal/config"
)

// SetStorageClass - One time migration code needed, for migrating from older config to new for StorageClass.
func SetStorageClass(s config.Config, cfg Config) {
	if len(cfg.Standard.String()) == 0 && len(cfg.RRS.String()) == 0 {