diff --git a/RELEASE-NOTES-1.43 b/RELEASE-NOTES-1.43
index b5aa29f40ae..324026c49d1 100644
--- a/RELEASE-NOTES-1.43
+++ b/RELEASE-NOTES-1.43
@@ -950,6 +950,10 @@ because of Phabricator reports.
   details, see <https://developer.mozilla.org/en-US/docs/Web/API/URL>.
 * The parameter $default in WebRequest::getRawVal() is deprecated. Use ??
   instead.
+* SpecialBlock::processForm(), SpecialBlock::parseExpiryInput() and
+  SpecialBlock::canBlockEmail(), deprecated since 1.36, and
+  SpecialBlock::getSuggestedDurations(), deprecated since 1.42, now emit
+  deprecation warnings.
 * …
 
 === Other changes in 1.43 ===
diff --git a/includes/specials/SpecialBlock.php b/includes/specials/SpecialBlock.php
index 6e27d2a4c90..7e52b6df8e9 100644
--- a/includes/specials/SpecialBlock.php
+++ b/includes/specials/SpecialBlock.php
@@ -907,12 +907,14 @@ class SpecialBlock extends FormSpecialPage {
 	/**
 	 * Given the form data, actually implement a block.
 	 *
-	 * @deprecated since 1.36, use BlockUserFactory service instead
+	 * @deprecated since 1.36, use BlockUserFactory service instead,
+	 *     hard-deprecated since 1.43
 	 * @param array $data
 	 * @param IContextSource $context
 	 * @return bool|string|array|Status
 	 */
 	public static function processForm( array $data, IContextSource $context ) {
+		wfDeprecated( __METHOD__, '1.36' );
 		$services = MediaWikiServices::getInstance();
 		return self::processFormInternal(
 			$data,
@@ -1081,7 +1083,8 @@ class SpecialBlock extends FormSpecialPage {
 	 * Get an array of suggested block durations from MediaWiki:Ipboptions
 	 * @todo FIXME: This uses a rather odd syntax for the options, should it be converted
 	 *     to the standard "**<duration>|<displayname>" format?
-	 * @deprecated since 1.42, use Language::getBlockDurations() instead.
+	 * @deprecated since 1.42, use Language::getBlockDurations() instead,
+	 *     hard-deprecated since 1.43
 	 * @param Language|null $lang The language to get the durations in, or null to use
 	 *     the wiki's content language
 	 * @param bool $includeOther Whether to include the 'other' option in the list of
@@ -1089,6 +1092,7 @@ class SpecialBlock extends FormSpecialPage {
 	 * @return string[]
 	 */
 	public static function getSuggestedDurations( Language $lang = null, $includeOther = true ) {
+		wfDeprecated( __METHOD__, '1.42' );
 		$lang ??= MediaWikiServices::getInstance()->getContentLanguage();
 		return $lang->getBlockDurations( $includeOther );
 	}
@@ -1097,23 +1101,27 @@ class SpecialBlock extends FormSpecialPage {
 	 * Convert a submitted expiry time, which may be relative ("2 weeks", etc) or absolute
 	 * ("24 May 2034", etc), into an absolute timestamp we can put into the database.
 	 *
-	 * @deprecated since 1.36, use BlockUser::parseExpiryInput instead
+	 * @deprecated since 1.36, use BlockUser::parseExpiryInput instead,
+	 *     hard-deprecated since 1.43
 	 *
 	 * @param string $expiry Whatever was typed into the form
 	 * @return string|bool Timestamp or 'infinity' or false on error.
 	 */
 	public static function parseExpiryInput( $expiry ) {
+		wfDeprecated( __METHOD__, '1.36' );
 		return BlockUser::parseExpiryInput( $expiry );
 	}
 
 	/**
 	 * Can we do an email block?
 	 *
-	 * @deprecated since 1.36, use BlockPermissionChecker service instead
+	 * @deprecated since 1.36, use BlockPermissionChecker service instead,
+	 *     hard-deprecated since 1.43
 	 * @param UserIdentity $user The sysop wanting to make a block
 	 * @return bool
 	 */
 	public static function canBlockEmail( UserIdentity $user ) {
+		wfDeprecated( __METHOD__, '1.36' );
 		return MediaWikiServices::getInstance()
 			->getBlockPermissionCheckerFactory()
 			->newBlockPermissionChecker( null, User::newFromIdentity( $user ) )
diff --git a/tests/phpunit/includes/specials/SpecialBlockTest.php b/tests/phpunit/includes/specials/SpecialBlockTest.php
index ee5e0051f6f..8026a0d3591 100644
--- a/tests/phpunit/includes/specials/SpecialBlockTest.php
+++ b/tests/phpunit/includes/specials/SpecialBlockTest.php
@@ -188,6 +188,7 @@ class SpecialBlockTest extends SpecialPageTestBase {
 	 * @covers ::processForm
 	 */
 	public function testProcessForm() {
+		$this->hideDeprecated( SpecialBlock::class . '::processForm' );
 		$badActor = $this->getTestUser()->getUserIdentity();
 		$context = RequestContext::getMain();
 		$context->setUser( $this->getTestSysop()->getUser() );
@@ -223,6 +224,7 @@ class SpecialBlockTest extends SpecialPageTestBase {
 	 * @covers ::processForm
 	 */
 	public function testProcessFormExisting() {
+		$this->hideDeprecated( SpecialBlock::class . '::processForm' );
 		$badActor = $this->getTestUser()->getUser();
 		$sysop = $this->getTestSysop()->getUser();
 		$context = RequestContext::getMain();
@@ -270,6 +272,7 @@ class SpecialBlockTest extends SpecialPageTestBase {
 	 * @covers ::processForm
 	 */
 	public function testProcessFormRestrictions() {
+		$this->hideDeprecated( SpecialBlock::class . '::processForm' );
 		$this->overrideConfigValue( MainConfigNames::EnablePartialActionBlocks, true );
 
 		$badActor = $this->getTestUser()->getUser();
@@ -326,6 +329,7 @@ class SpecialBlockTest extends SpecialPageTestBase {
 	 * @covers ::processForm
 	 */
 	public function testProcessFormRestrictionsChange() {
+		$this->hideDeprecated( SpecialBlock::class . '::processForm' );
 		$badActor = $this->getTestUser()->getUser();
 		$context = RequestContext::getMain();
 		$context->setUser( $this->getTestSysop()->getUser() );
@@ -430,6 +434,7 @@ class SpecialBlockTest extends SpecialPageTestBase {
 	 * @covers ::processForm
 	 */
 	public function testProcessFormUserTalkEditFlag( $options, $expected ) {
+		$this->hideDeprecated( SpecialBlock::class . '::processForm' );
 		$this->overrideConfigValue( MainConfigNames::BlockAllowsUTEdit, $options['configAllowsUserTalkEdit'] );
 
 		$performer = $this->getTestSysop()->getUser();
@@ -537,6 +542,7 @@ class SpecialBlockTest extends SpecialPageTestBase {
 	 * @covers ::processForm
 	 */
 	public function testProcessFormErrors( $data, $expected, $options = [] ) {
+		$this->hideDeprecated( SpecialBlock::class . '::processForm' );
 		$this->overrideConfigValue( MainConfigNames::BlockAllowsUTEdit, true );
 
 		$performer = $this->getTestSysop()->getUser();
@@ -645,6 +651,7 @@ class SpecialBlockTest extends SpecialPageTestBase {
 	 * @covers ::processForm
 	 */
 	public function testProcessFormErrorsReblock( $data, $permissions, $expected ) {
+		$this->hideDeprecated( SpecialBlock::class . '::processForm' );
 		$this->overrideConfigValue( MainConfigNames::BlockAllowsUTEdit, true );
 
 		$performer = $this->getTestSysop()->getUser();
@@ -728,6 +735,7 @@ class SpecialBlockTest extends SpecialPageTestBase {
 	 * @covers ::processForm
 	 */
 	public function testProcessFormErrorsHideUser( $data, $permissions, $expected ) {
+		$this->hideDeprecated( SpecialBlock::class . '::processForm' );
 		$performer = $this->getTestSysop()->getUser();
 		$this->overrideUserPermissions( $performer, array_merge( $permissions, [ 'block' ] ) );
 
@@ -789,6 +797,7 @@ class SpecialBlockTest extends SpecialPageTestBase {
 	 * @covers ::processForm
 	 */
 	public function testProcessFormErrorsHideUserProlific() {
+		$this->hideDeprecated( SpecialBlock::class . '::processForm' );
 		$this->overrideConfigValue( MainConfigNames::HideUserContribLimit, 0 );
 
 		$performer = $this->mockRegisteredUltimateAuthority();