Issue #3241272 by andypost, alexpott: core/modules/system/tests/src/Functional/FileTransfer/TestFileTransfer.php causes deprecations on PHP 8.1

Issue #3239471 by gbaudoin, yogeshmpawar, longwave: Wrong type of KeyValueFactoryInterface used in the constructor of UpdateProcessor

Issue #3241267 by alexpott, daffie: Drupal\Tests\Core\Session\WriteSafeSessionHandlerTest::testOtherMethods() fails due to a type error on PHP 8.1

Issue #3241268 by alexpott, daffie: core/modules/node/tests/modules/node_test/node_test.module cause deprecations on PHP 8.1

Issue #3241306 by alexpott, mondrake: core/tests/Drupal/Tests/Core/Database/ConnectionTest.php fails on PHP 8.1

Issue #3241296 by andypost, alexpott: core/tests/Drupal/KernelTests/Core/Path/PathValidatorTest.php triggers deprecations on PHP 8.1

Issue #3241300 by alexpott: template_preprocess_responsive_image_formatter() causes deprecations on PHP 8.1

Issue #3241308 by alexpott: core/tests/Drupal/Tests/Core/Entity/Sql/DefaultTableMappingTest.php triggers deprecations on PHP 8.1

Issue #3192365 by Symbioquine, tbradbury, mxr576, alexpott, longwave: Race Condition in 'public://simpletest' mkdir Call

Issue #3240906 by andypost, alexpott, mondrake: template_preprocess_image_formatter() triggers deprecations in PHP 8.1

Issue #3240959 by andypost, alexpott: \Drupal\migrate_drupal_ui\Form\ReviewForm::prepareOutput() causes deprecations on PHP 8.1

Issue #3240960 by andypost: \Drupal\KernelTests\Core\Render\Element\ActionsTest::getFormId() causes deprecations on PHP 8.1

Issue #3231731 by phenaproxima, larowlan, seanB: Use Content-Type header from oEmbed thumbnail GET request when determining the file extension

Issue #3240955 by andypost: \Drupal\media\Plugin\Filter\MediaEmbed::applyPerEmbedMediaOverrides() triggers deprecations in PHP 8.1

Issue #3240958 by andypost, alexpott: template_preprocess_locale_translation_last_check() causes deprecations on PHP 8.1

Issue #3240888 by andypost, alexpott: Using Prophecy to implement Serializable will cause deprecations on PHP 8.1

Issue #3240905 by alexpott: \Drupal\language\Plugin\LanguageNegotiation\LanguageNegotiationSession can cause deprecations in PHP 8.1

Issue #3240800 by alexpott: Creating an configuration entity via new ConfigEntityClass() triggers deprecations in PHP 8.1, use ConfigEntityClass::create() instead

Issue #3239436 by alexpott, danflanagan8, longwave: Cannot run \Drupal\Tests\layout_builder\FunctionalJavascript\LayoutBuilderDisableInteractionsTest locally because it tests error messages from chromedriver

Issue #3240364 by andypost: \Drupal\Tests\system\Functional\Pager\PagerTest::testMultiplePagers() causes deprecations on PHP 8.1

Issue #3240167 by andypost, alexpott, daffie, larowlan: \Drupal\comment\CommentStorage::getMaxThread() and \Drupal\comment\Entity\Comment::getThread() cause deprecations on PHP 8.1

Issue #3240180 by alexpott, andypost, daffie: \Drupal\user\Entity\User::getEmail() can return NULL causing deprecations in PHP 8.1

Issue #3240455 by alexpott, daffie: Fix Drupal\Tests\content_translation\Functional\ContentTranslationSettingsTest so it does not trigger deprecations on PHP 8.1

Issue #3240174 by alexpott, andypost, daffie: \Drupal\config_translation\FormElement\Textarea() can cause deprecations on PHP 8.1

Issue #3240247 by alexpott, daffie: \Drupal\filter\Entity\FilterFormat::$name with a NULL value causes deprecations in PHP 8.1

Issue #3240361 by andypost, alexpott: \Drupal\user\Entity\User::checkExistingPassword() causes deprecations on PHP 8.1

Issue #3240456 by alexpott, andypost, daffie: Allow E_DEPRECATED deprecations to be skipped so we can test on PHP 8.1

Issue #3240182 by alexpott, daffie, dagmar, andypost: \Drupal\dblog\Controller\DbLogController::createLink() can cause deprecations on PHP 8.1

Issue #3211622 by Gauravmahlawat, mherchel, kiran.kadam911, rikki_iki: Olivero: Text can be cut off at mobile if site-branding text goes to two lines

Issue #3240362 by andypost: \Drupal\tour\TipPluginBase::getLocation() causes deprecations on PHP 8.1

Issue #3240148 by alexpott: \Drupal\aggregator\Entity\Item::getLink() can cause deprecations on PHP 8.1

Issue #3072374 by kjay, thierrydallacroce, Gayathri J, chetanbharambe, webchick, markconroy, shaal: Change "Recipe category" to a select drop-down vs. autocomplete field

Issue #2817081 by nod_, Baysaa, rensingh99, AndyF, amoebanath, alexpott, lauriii, andrewmacpherson: Show 'Edit summary' links on multi-value long text field with summary