*     <dd>last released major</dd>
 *     <dt>N, N &gt; 0</dt>
 *     <dd>last released minor</dd>
 * </dl>
 *
 * <ul>
 * <li>the unreleased <b>major</b>, M+1.0.0 on the `master` branch</li>
 * <li>the unreleased <b>minor</b>,  M.N.0 on the `M.x` (x is literal) branch</li>
 * <li>the unreleased <b>bugfix</b>, M.N.c (c &gt; 0) on the `M.N` branch</li>

/**
 * We want to be able to do BWC tests for unreleased versions without relying on and waiting for snapshots.
 * For this we need to check out and build the unreleased versions.
 * Since these depend on the current version, we can't name the Gradle projects statically, and don't know what the
 * unreleased versions are when Gradle projects are set up, so we use "build-unreleased-version-*" as placeholders

                writer.println("<a name=\"sec_$version\"></a>")
                writer.println(
                    "<h2>Incubating since $version (${versions[version]?.run { "released on $this" } ?: "unreleased"})</h2>"
                )
                writer.println("<ul>")
                incubatingDescriptions.sortedBy { it.name }.forEach { incubating ->

[[release-highlights]]
== What's new in {minor-version}

coming::[{minor-version}]

Here are the highlights of what's new and improved in {es} {minor-version}!
ifeval::[\\{release-state}\\"!=\\"unreleased\\"]
For detailed information about this release, see the <<es-release-notes>> and
<<breaking-changes>>.
endif::[]
<% if (priorVersions.size() > 0) { %>
// Add previous release to the list
Other versions:

<%

    private static final Map<String, List<String>> sampleVersions = new HashMap<>();

    @Rule
    public ExpectedException expectedEx = ExpectedException.none();

    static {
        // unreleased major and two unreleased minors ( minor in feature freeze )
        sampleVersions.put("8.0.0", asList("7_0_0", "7_0_1", "7_1_0", "7_1_1", "7_2_0", "7_3_0", "8.0.0"));
        sampleVersions.put(
            "7.0.0-alpha1",

                );
            }
            return null;
        }));
    }

    /**
     * Will be removed once this is backported to all unreleased branches.
     */
    private static String getProjectConfig(ElasticsearchDistribution distribution, BwcVersions.UnreleasedVersionInfo info) {
        String distributionProjectName = distributionProjectName(distribution);

ext.bwcTaskName = { Version version ->
  return "v${version}#bwcTest"
}

def bwcTestSnapshots = tasks.register("bwcTestSnapshots") {
  if (project.bwc_tests_enabled) {
    dependsOn tasks.matching { task -> BuildParams.bwcVersions.unreleased.any { version -> bwcTaskName(version) == task.name } }
  }
}

tasks.register("bwcTest") {
  description = 'Runs backwards compatibility tests.'
  group = 'verification'

  if (project.bwc_tests_enabled) {

When running `./gradlew check`, minimal bwc checks are also run against compatible versions that are not yet released.

==== BWC Testing against a specific remote/branch

Sometimes a backward compatibility change spans two versions. A common case is a new functionality
that needs a BWC bridge in an unreleased versioned of a release branch (for example, 5.x).

    return {"foo": foo}


@app.get("/multiple")
async def multiple(foo: Annotated[str, object(), Query(min_length=1)]):
    return {"foo": foo}


@app.get("/unrelated")
async def unrelated(foo: Annotated[str, object()]):
    return {"foo": foo}


client = TestClient(app)

foo_is_missing = {
    "detail": [
        {
            "loc": ["query", "foo"],

<style>
  main ul li { margin: 0.5em 0; }
</style>

## DRAFT RELEASE NOTES — Introduction to Go 1.N {#introduction}

**Go 1.N is not yet released. These are work-in-progress release notes.