This change does not have any impact on typical Istio users, but rather impacts users importing Istio as a Go library.
    
    For these users, upgrading the Istio libraries will likely cause compiliation issues. These issues are typically simple to address,

        smokeTestRunner.expectDeprecationWarning("The LenientConfiguration.getArtifacts(Spec) method has been deprecated. This is scheduled to be removed in Gradle 9.0. Use a lenient ArtifactView with a componentFilter instead. Consult the upgrading guide for further information: https://docs.gradle.org/${GradleVersion.current().version}/userguide/upgrading_version_8.html#deprecate_filtered_configuration_file_and_filecollection_methods", "https://github.com/spring-gradle-plugins/dependency-...

apiVersion: release-notes/v2
kind: bug-fix
area: networking
issue:
  - 29427
  - 28516
upgradeNotes:
  - title: Connectivity issues among your proxies when updating from 1.7.x to 1.7.5 or newer.
    content: |
      When upgrading your Istio data plane from 1.7.x (where x < 5) to 1.7.5 or newer, you may 
      observe connectivity issues between your gateway and your sidecars or among your sidecars 

            " This is scheduled to be removed in Gradle 9.0. JFrog announced JCenter's sunset in February 2021. Use mavenCentral() instead." +
            " Consult the upgrading guide for further information: https://docs.gradle.org/current/userguide/upgrading_version_6.html#jcenter_deprecation"

        then:
        succeeds 'help'
    }

        public T withDslReference(Class<?> targetClass, String property) {
            return withDocumentation(Documentation.dslReference(targetClass, property));
        }

        /**
         * Output: Consult the upgrading guide for further information: UPGRADE_GUIDE_URL
         */
        @CheckReturnValue
        public T withUpgradeGuideSection(int majorVersion, String upgradeGuideSection) {

            "This will fail with an error in Gradle 9.0. There are test sources present but no test was executed. Please check your test configuration. " +
            "Consult the upgrading guide for further information: https://docs.gradle.org/current/userguide/upgrading_version_8.html#test_task_fail_on_no_test_executed")
        succeeds "test"

        then:
        testResult.assertNoTestClassesExecuted()

# Verifies golang.org/issue/37574.

# If we are already using an +incompatible version, we shouldn't look up
# a lower compatible version when upgrading.
cp go.mod go.mod.orig
go mod tidy
cmp go.mod.orig go.mod
grep '^example.com/incompatiblewithsub v2\.0\.0\+incompatible' go.sum
! grep '^example.com/incompatiblewithsub v1.0.0' go.sum

go get example.com/incompatiblewithsub/sub
cmp go.mod.orig go.mod

        executer.expectDocumentedDeprecationWarning("Passing invalid URIs to URI or File converting methods. This behavior has been deprecated. This will fail with an error in Gradle 9.0. Use a valid URL or a file path instead. Consult the upgrading guide for further information: https://docs.gradle.org/current/userguide/upgrading_version_8.html#deprecated_invalid_url_decoding")
        succeeds()
    }

    def "produces deprecation warning for invalid URLs"() {

// NewResponseUpgrader returns a new httpstream.ResponseUpgrader that is
// capable of upgrading HTTP responses using SPDY/3.1 via the
// spdystream package.
func NewResponseUpgrader() httpstream.ResponseUpgrader {
	return NewResponseUpgraderWithPings(0)
}

// NewResponseUpgraderWithPings returns a new httpstream.ResponseUpgrader that
// is capable of upgrading HTTP responses using SPDY/3.1 via the spdystream
// package.
//

    content: |
        When using TCP probes with older versions of istio the check was always successful, even if the application didn't open the port.
        This may cause problems when upgrading: If you had a missconfiguration in a TCP probe (e.g wrong port) you maybe haven't noticed.
        After the upgrade a missconfigured TCP probe will fail and therefore might cause downtimes.

docs: