Here is a list of what was fixed since 11.5.10:

• 2022-06-14 7396e8fe58 [RELEASE] Release of TYPO3 11.5.11 (thanks to Oliver Hader)
• 2022-06-14 1b68d0fad1 [SECURITY] Synchronize admin tools session with backend user session (thanks to Oliver Hader)
• 2022-06-14 479363285c [SECURITY] Avoid HTML injection in password recovery mail (thanks to Andreas Fernandez)
• 2022-06-14 3b16f03685 [SECURITY] Ensure text preview of multivalue items in form editor (thanks to Gabe Troyan)
• 2022-06-14 fb542d43c7 [SECURITY] Do not log stacktrace in exception handlers (thanks to Torben Hansen)
• 2022-06-14 f4dd6171dd [SECURITY] Restrict export functionality to allowed users (thanks to Torben Hansen)
• 2022-06-13 24cde96a37 [BUGFIX] Update guzzlehttp/guzzle to 7.4.4 (thanks to Torben Hansen)
• 2022-06-11 979ce508c2 [BUGFIX] Wait for element in page tree to disappear (thanks to Jochen Roth)
• 2022-06-11 351d751ac1 [BUGFIX] Enable login refresh form submit via ENTER key (thanks to Markus Klein)
• 2022-06-11 6037ce31c7 [TASK] Extend 'runTests.sh' to clean rendered documentation (thanks to Stefan Bürk)
• 2022-06-10 199e0da3ed [TASK] Add support for PHP8.2 to Build/Scripts/runTests.sh (thanks to Stefan Bürk)
• 2022-06-10 56c8c01e79 [TASK] Avoid failing test value for PHP 8.1.7 strtotime bug (thanks to Oliver Klee)
• 2022-06-10 7f0af212a6 [BUGFIX] Use moment.unix for visualizing regular unix timestamps (thanks to Oliver Hader)
• 2022-06-10 73637a4d21 [BUGFIX] Throw 404 error when XML sitemap is not available (thanks to Chris Müller)
• 2022-06-09 1708cda896 [BUGFIX] Apply empty values in language-overlay (thanks to André Buchmann)
• 2022-06-09 b87b55073a [TASK] Resolve more dead code paths (thanks to Larry Garfield)
• 2022-06-07 3cd23569ff [TASK] Remove type annotations where possible (thanks to Simon Schaufelberger)
• 2022-06-07 dd3d8e3839 [BUGFIX] Avoid invalid type exception in FinisherVariableProvider (thanks to Josua Vogel)
• 2022-06-06 0fc75be1c8 [TASK] Solve several phpstan issues in GifBuilder (thanks to Simon Schaufelberger)
• 2022-06-06 9a493fd14a [BUGFIX] Fix randomly failing PageTreeFilterCest (thanks to Simon Schaufelberger)
• 2022-06-06 5725ca4582 [BUGFIX] Avoid type error when importing content (thanks to Chris Müller)
• 2022-06-06 5a522bca9b [TASK] Drop PhpStorm meta configuration for getAccessibleMock & friends (thanks to Oliver Klee)
• 2022-06-05 2f48dd8298 [BUGFIX] Align translation prefix handling in DataMapProcessor (thanks to Oliver Bartsch)
• 2022-06-04 d198c60ab7 [BUGFIX] Respect ordering in pagination of redirect module (thanks to Georg Ringer)
• 2022-06-04 a2c1edc0c1 [BUGFIX] Fix crashes for current and getInfo on empty storages (thanks to Oliver Klee)
• 2022-06-03 7a637e8186 [BUGFIX] Use configuration context for placeholders in YAML import (thanks to Sascha Egerer)
• 2022-06-03 a082c36475 [BUGFIX] Ensure proper value when accessing array (thanks to Marc Willmann)
• 2022-06-03 9a2413912d [BUGFIX] Use correct check for disabled field in DataHandler (thanks to Georg Ringer)
• 2022-06-03 157930db88 [TASK] Align the test field annotations with the testing framework (thanks to Oliver Klee)
• 2022-06-03 6957bb32ce [BUGFIX] Late bind drag uploader (thanks to Andreas Fernandez)
• 2022-06-03 015b1089d4 [TASK] Raise to recent moment & moment-timezone versions (thanks to Oliver Hader)
• 2022-06-02 75350789a6 [TASK] Improve a type annotation in the setup extension (thanks to Oliver Klee)
• 2022-06-02 9c9b119fa5 [TASK] Raise to recent composer/composer 2.2 version (thanks to Oliver Hader)
• 2022-05-31 990da16a41 [BUGFIX] Make schedulable commands field identifiers unique (thanks to Oliver Bartsch)
• 2022-05-31 244ab0fd68 [TASK] Note nullable parameters and returns as such (thanks to Larry Garfield)
• 2022-05-30 a368cde810 [TASK] Fix wrong indentation in Context class (thanks to Torben Hansen)
• 2022-05-30 682f28f3d9 [TASK] Update PHPStan to version 1.7.3 (thanks to Oliver Klee)
• 2022-05-30 25c4689afe [TASK] Make the return type of GeneralUtility::tempnam more specific (thanks to Oliver Klee)
• 2022-05-29 156fee7038 [BUGFIX] Resolve a stray strpos call (thanks to Larry Garfield)
• 2022-05-28 58ba749f69 [BUGFIX] Mark nullable properties in EXT:core as such (thanks to Oliver Klee)
• 2022-05-28 2a0fa205b0 [TASK] Remove dead code paths identified by PHPStan (thanks to Larry Garfield)
• 2022-05-28 72ba9ce531 [TASK] Update copyright year in README.md and INSTALL.md (thanks to Torben Hansen)
• 2022-05-27 e16e68fb62 [DOCS] Streamline felogin documentation (thanks to Chris Müller)
• 2022-05-27 20d5b3dced [BUGFIX] Update guzzlehttp/guzzle to 7.4.3 (thanks to Andreas Fernandez)
• 2022-05-25 e16fd7cba6 [BUGFIX] Fix typolink parameter stdWrap when using additional info (thanks to Felix Nagel)
• 2022-05-25 b270a6bbb3 [BUGFIX] Disable toggle all action in multi record selection (thanks to Oliver Bartsch)
• 2022-05-25 58938ec06a [BUGFIX] Prevent TypeError in ActionController (thanks to Oliver Bartsch)
• 2022-05-25 d2e31772c8 [BUGFIX] Properly handle shortcuts for creating new records (thanks to Oliver Bartsch)
• 2022-05-25 92eb44776b [BUGFIX] Prevent undefined array key warnings in RecordHistory (thanks to Oliver Bartsch)
• 2022-05-25 dbdd8bf6f4 [TASK] Simplify code in ConjunctionValidator (thanks to Larry Garfield)
• 2022-05-25 e5616696b2 [BUGFIX] Take dev mode into account for package hash (thanks to Helmut Hummel)
• 2022-05-25 233b80cd22 [BUGFIX] Avoid undefined array key warnings in GifBuilder (thanks to Simon Schaufelberger)
• 2022-05-24 75041196c1 [BUGFIX] Prevent undefined array key warning when fetching session data (thanks to Rudy Gnodde)
• 2022-05-24 fa8187d525 [BUGFIX] Fix typo in description for BE.compressionLevel (thanks to Torben Hansen)
• 2022-05-23 e78645bc52 [TASK] Avoid method_exists() for phpunit 8 compat (thanks to Christian Kuhn)
• 2022-05-23 c5fd499d15 [TASK] Raise typo3/testing-framework:^6.16.5 (thanks to Stefan Bürk)
• 2022-05-23 de0ce374c3 [TASK] Update PHPStan to version 1.7.0 (thanks to Oliver Klee)
• 2022-05-23 7275e8e16e [TASK] Raise phpstan/phpstan:^1.6.9 (thanks to Stefan Bürk)
• 2022-05-20 4ec2656464 [TASK] Note more nullable properties and parameters (thanks to Larry Garfield)
• 2022-05-20 0142030731 [BUGFIX] Use correct time format in from and to filter (thanks to Simon Schaufelberger)
• 2022-05-20 c786536da2 [BUGFIX] Use plugin icon in content element preview (thanks to Torben Hansen)
• 2022-05-20 96ca05d8e9 [BUGFIX] Resolve type issues in SemaphoreLockStrategy (thanks to Larry Garfield)
• 2022-05-20 0fa97aac86 [BUGFIX] Show missing total amount and time of sql queries (thanks to Christoph Lehmann)
• 2022-05-19 e2df44f79d [DOCS] Remove outdated note in fluid_styled_content (thanks to Sybille Peters)
• 2022-05-19 f04d8ea609 [DOCS] Use correct middleware name 'typo3/cms-frontend/authentication' (thanks to Stephan Großberndt)
• 2022-05-17 e80a816bce [TASK] Use more ::class notation for class names in tests (thanks to Oliver Klee)
• 2022-05-17 252a0e9edc [TASK] Resolve PHPStan issues in AbstractRecycleTestCase (thanks to Larry Garfield)
• 2022-05-16 50e62cdfd5 [BUGFIX] Stop mocking classes that do not exist (thanks to Oliver Klee)
• 2022-05-13 09264fed11 [TASK] Address phpstan "Expression on left side of ??" errors (thanks to Larry Garfield)
• 2022-05-13 e1f1f6650a [BUGFIX] Fix type warnings in the workspaces ActionHandler (thanks to Oliver Klee)
• 2022-05-13 f03bfb4bc8 [BUGFIX] Prevent undefined array key warning in CleanFlexFormsCommand (thanks to Oliver Bartsch)
• 2022-05-13 5090ac55d9 [BUGFIX] Exclude doktypes in SiteConfiguration (thanks to Jochen Roth)
• 2022-05-12 da9c87ad52 [DOCS] Remove duplicate number sign (thanks to Česlav Przywara)
• 2022-05-12 4abc44fc01 [DOCS] Correct naming of UI label (thanks to rintisch)
• 2022-05-12 91f1260bd7 [BUGFIX] Correct TCA title in ext:blogexample dateexample (thanks to Christian Kuhn)
• 2022-05-11 ff77273df6 [TASK] Raise lolli42/finediff:^1.0.1 (thanks to Christian Kuhn)
• 2022-05-10 9c7c2b490f [DOCS] Fix typo in rte_ckeditor docs (thanks to Georg Ringer)
• 2022-05-10 05d9d60710 [BUGFIX] Fix undefined array key in TemplateService (thanks to David Gurk)
• 2022-05-10 d9a01b9bde [TASK] Set TYPO3 version to 11.5.11-dev (thanks to Oliver Hader)