## Available versions { #available-versions }

You can see the available versions (e.g. to check what is the current latest) in the [Release Notes](../release-notes.md){.internal-link target=_blank}.

## About versions { #about-versions }

Following the Semantic Versioning conventions, any version below `1.0.0` could potentially add breaking changes.

junit5android-runner = { module = "de.mannodermaus.junit5:android-test-runner", version.ref = "de-mannodermaus-junit5" }
kotlin-junit5 = { module = "org.jetbrains.kotlin:kotlin-test-junit5", version.ref = "org-jetbrains-kotlin" }
kotlin-reflect = { module = "org.jetbrains.kotlin:kotlin-reflect", version.ref = "org-jetbrains-kotlin" }

		return true
	}
	if !chkNumVersions(fivs.Versions) {
		t.Fatalf("Expected all versions to have the same NumVersions")
	}

	sort.Slice(versions, func(i, j int) bool {
		if versions[i].IsLatest {
			return true
		}
		if versions[j].IsLatest {
			return false
		}
		return versions[i].ModTime.After(versions[j].ModTime)
	})

	for i, fi := range fivs.Versions {
		if fi.VersionID != versions[i].VersionID {

		_, err = dst.unmarshalV(x.metaV, version.meta)
		if err != nil {
			return versions, err
		}
		fi, err := dst.ToFileInfo(volume, path, allParts)
		if err != nil {
			return versions, err
		}
		fi.NumVersions = len(x.versions)
		versions = append(versions, fi)
	}

	for i := range versions {
		versions[i].NumVersions = len(versions)
		if i > 0 {

		if len(xl.versions) != 855 {
			t.Errorf("want %d versions, got %d", 855, len(xl.versions))
		}
		xl.sortByModTime()
		if !sort.SliceIsSorted(xl.versions, func(i, j int) bool {
			return xl.versions[i].header.ModTime > xl.versions[j].header.ModTime
		}) {
			t.Errorf("Contents not sorted")
		}
		for i := range xl.versions {
			hdr := xl.versions[i].header
			ver, err := xl.getIdx(i)

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**.

				t.Error("got size", e.Size, "want", w.size)
			}
			if e.Objects != uint64(w.objs) {
				t.Error("got objects", e.Objects, "want", w.objs)
			}
			if e.Versions != uint64(w.objs) {
				t.Error("got versions", e.Versions, "want", w.objs)
			}
			if e.ObjSizes != w.oSizes {
				t.Error("got histogram", e.ObjSizes, "want", w.oSizes)
			}
		})
	}

	files = []usageTestFile{
		{

// be achieved and disks have too many inconsistent versions.
func reduceCommonVersions(diskVersions [][]byte, writeQuorum int) (versions []byte) {
	diskVersionsCount := make(map[uint64]int)
	for _, versions := range diskVersions {
		if len(versions) > 0 {
			diskVersionsCount[binary.BigEndian.Uint64(versions)]++
		}
	}

	var commonVersions uint64
	maxCnt := 0
	for versions, count := range diskVersionsCount {
		if maxCnt < count {

	lcXML := `
<LifecycleConfiguration>
       <Rule>
               <ID>max-versions</ID>
               <Status>Enabled</Status>
               <NoncurrentVersionExpiration>
                       <NewerNoncurrentVersions>2</NewerNoncurrentVersions>
               </NoncurrentVersionExpiration>
       </Rule>
       <Rule>
               <ID>delete-all-versions</ID>
               <Status>Enabled</Status>
               <Filter>

					Type:      ObjectType,
					Flags:     0,
				}},
			},
		},
		4: {
			versions: []xlMetaV2ShallowVersion{},
		},
		// Has a zero version id
		5: {
			versions: []xlMetaV2ShallowVersion{
				{header: xlMetaV2VersionHeader{
					VersionID: [16]byte{},
					ModTime:   baseTime.Add(60 * time.Minute).UnixNano(),
					Signature: [4]byte{5, 1, 1, 1},
					Type:      ObjectType,