Some upgrade methods might upgrade etcd from 3.0 to 3.1 automatically when you upgrade from Kubernetes 1.8, unless you specify otherwise. Because [etcd does not support downgrading](https://coreos.com/etcd/docs/latest/upgrades/upgrade_3_1.html), you'll need to either remain on etcd 3.1 or restore from a backup if you want to downgrade back to Kubernetes 1.8.

## Introduction to 1.9.0

- [v1.21.0-alpha.3](#v1210-alpha3)
  - [Downloads for v1.21.0-alpha.3](#downloads-for-v1210-alpha3)
    - [Source Code](#source-code-18)
    - [Client binaries](#client-binaries-18)
    - [Server binaries](#server-binaries-18)
    - [Node binaries](#node-binaries-18)
  - [Changelog since v1.21.0-alpha.2](#changelog-since-v1210-alpha2)
  - [Urgent Upgrade Notes](#urgent-upgrade-notes-4)

  public void testBuildKeepingLast_collisions() {
    Map<ClassWithTerribleHashCode, Integer> expected = new LinkedHashMap<>();
    Builder<ClassWithTerribleHashCode, Integer> builder = new Builder<>();
    int size = 18;
    for (int i = 0; i < size; i++) {
      ClassWithTerribleHashCode key = new ClassWithTerribleHashCode(i);
      builder.put(key, i);
      builder.put(key, -i);
      expected.put(key, -i);
    }

//
//	var compactFile = "abcdefgh"
//
// And the sparse map has the following entries:
//
//	var spd sparseDatas = []sparseEntry{
//		{Offset: 2,  Length: 5},  // Data fragment for 2..6
//		{Offset: 18, Length: 3},  // Data fragment for 18..20
//	}
//	var sph sparseHoles = []sparseEntry{
//		{Offset: 0,  Length: 2},  // Hole fragment for 0..1
//		{Offset: 7,  Length: 11}, // Hole fragment for 7..17

		{ObjectOpts{Name: "xyz/c3test", UserTags: "k1=v1"}, cfgs[2], true},                                                                      // 18. matches rule 1 for replication of content/metadata

    assertEquals(asList(7, 5, 9, 3), fromList);
    toList.add(5);
    assertEquals(asList(5, 7, 5, 9, 3), fromList);
    toList.remove(Integer.valueOf(5));
    assertEquals(asList(5, 7, 9, 3), fromList);
    toList.set(1, 8);
    assertEquals(asList(5, 7, 8, 3), fromList);
    toList.clear();
    assertEquals(emptyList(), fromList);
  }

  @SafeVarargs
  private static <E> List<E> list(E... elements) {

    assertEquals(asList(7, 5, 9, 3), fromList);
    toList.add(5);
    assertEquals(asList(5, 7, 5, 9, 3), fromList);
    toList.remove(Integer.valueOf(5));
    assertEquals(asList(5, 7, 9, 3), fromList);
    toList.set(1, 8);
    assertEquals(asList(5, 7, 8, 3), fromList);
    toList.clear();
    assertEquals(emptyList(), fromList);
  }

  @SafeVarargs
  private static <E> List<E> list(E... elements) {

pkg syscall (netbsd-arm64-cgo), const AF_ISO ideal-int
pkg syscall (netbsd-arm64-cgo), const AF_LAT = 14
pkg syscall (netbsd-arm64-cgo), const AF_LAT ideal-int
pkg syscall (netbsd-arm64-cgo), const AF_LINK = 18
pkg syscall (netbsd-arm64-cgo), const AF_LINK ideal-int
pkg syscall (netbsd-arm64-cgo), const AF_LOCAL = 1
pkg syscall (netbsd-arm64-cgo), const AF_LOCAL ideal-int
pkg syscall (netbsd-arm64-cgo), const AF_MAX = 35

```

////

//// tab | Python 3.8+ nicht annotiert

/// tip | "Tipp"

Bevorzugen Sie die `Annotated`-Version, falls möglich.

///

```Python hl_lines="18"
{!> ../../docs_src/query_params_str_validations/tutorial010.py!}
```

////

Die Dokumentation wird das so anzeigen:

<img src="/img/tutorial/query-params-str-validations/image01.png">

    - [Removed](#removed-17)
- [v1.20.0-beta.1](#v1200-beta1)
  - [Downloads for v1.20.0-beta.1](#downloads-for-v1200-beta1)
    - [Source Code](#source-code-18)
    - [Client binaries](#client-binaries-18)
    - [Server binaries](#server-binaries-18)
    - [Node binaries](#node-binaries-18)
  - [Changelog since v1.20.0-beta.0](#changelog-since-v1200-beta0)
  - [Changes by Kind](#changes-by-kind-17)
    - [Deprecation](#deprecation-2)