shlinkio · acelaya · Sep 21, 2026 · Sep 21, 2026 · Sep 21, 2026
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -4,6 +4,23 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com), and this project adheres to [Semantic Versioning](https://semver.org).
 
+## [5.1.7] - 2026-09-21
+### Added
+* *Nothing*
+
+### Changed
+* *Nothing*
+
+### Deprecated
+* *Nothing*
+
+### Removed
+* *Nothing*
+
+### Fixed
+* [#2658](https://github.com/shlinkio/shlink/issues/2658) Fix redis connections left open sometimes.
+
+
 ## [5.1.6] - 2026-09-06
 ### Added
 * *Nothing*

diff --git a/composer.json b/composer.json
@@ -42,7 +42,7 @@
         "pagerfanta/core": "^3.8",
         "ramsey/uuid": "^4.9",
         "shlinkio/doctrine-specification": "^2.3",
-        "shlinkio/shlink-common": "^9.0.1",
+        "shlinkio/shlink-common": "^9.0.2",
         "shlinkio/shlink-config": "^4.1.0",
         "shlinkio/shlink-event-dispatcher": "^4.4.0",
         "shlinkio/shlink-importer": "^5.8",

diff --git a/mago-analyze-baseline.toml b/mago-analyze-baseline.toml
@@ -450,54 +450,6 @@ code = "less-specific-nested-argument-type"
 message = 'Argument type mismatch for argument #1 of `Symfony\Component\Process\Process::__construct`: expected `array<array-key, string>`, but provided type `array<array-key, mixed>` is less specific.'
 count = 1
 
-[[issues]]
-file = "module/CLI/src/Util/ProcessRunner.php"
-code = "mixed-argument"
-message = "Invalid argument type for argument #1 of `spl_object_hash`: expected `object`, but found `mixed`."
-count = 2
-
-[[issues]]
-file = "module/CLI/src/Util/ProcessRunner.php"
-code = "mixed-argument"
-message = 'Invalid argument type for argument #2 of `Symfony\Component\Console\Helper\ProcessHelper::wrapCallback`: expected `Symfony\Component\Process\Process`, but found `mixed`.'
-count = 1
-
-[[issues]]
-file = "module/CLI/src/Util/ProcessRunner.php"
-code = "mixed-argument"
-message = "Invalid argument type for argument #2 of `sprintf`: expected `Stringable|null|scalar`, but found `mixed`."
-count = 1
-
-[[issues]]
-file = "module/CLI/src/Util/ProcessRunner.php"
-code = "mixed-argument"
-message = 'Invalid argument type for argument #3 of `Symfony\Component\Console\Helper\DebugFormatterHelper::stop`: expected `bool`, but found `mixed`.'
-count = 1
-
-[[issues]]
-file = "module/CLI/src/Util/ProcessRunner.php"
-code = "mixed-argument"
-message = "Invalid argument type for argument #3 of `str_replace`: expected `array<array-key, string>|string`, but found `mixed`."
-count = 1
-
-[[issues]]
-file = "module/CLI/src/Util/ProcessRunner.php"
-code = "mixed-assignment"
-message = "Assigning `mixed` type to a variable may lead to unexpected behavior."
-count = 1
-
-[[issues]]
-file = "module/CLI/src/Util/ProcessRunner.php"
-code = "mixed-method-access"
-message = "Attempting to access a method on a non-object type (`mixed`)."
-count = 5
-
-[[issues]]
-file = "module/CLI/src/Util/ProcessRunner.php"
-code = "possibly-invalid-argument"
-message = 'Possible argument type mismatch for argument #2 of `Symfony\Component\Console\Helper\DebugFormatterHelper::start`: expected `string`, but possibly received `array<array-key, string>|string`.'
-count = 1
-
 [[issues]]
 file = "module/CLI/src/Util/ShlinkTable.php"
 code = "mixed-assignment"
@@ -642,12 +594,6 @@ code = "mixed-argument"
 message = "Invalid argument type for argument #6 of `sprintf`: expected `Stringable|null|scalar`, but found `mixed`."
 count = 1
 
-[[issues]]
-file = "module/Core/functions/functions.php"
-code = "mixed-array-access"
-message = "Unsafe array access on type `nonnull`."
-count = 1
-
 [[issues]]
 file = "module/Core/functions/functions.php"
 code = "mixed-array-assignment"
@@ -723,7 +669,7 @@ count = 1
 [[issues]]
 file = "module/Core/functions/functions.php"
 code = "possibly-null-argument"
-message = "Argument #3 of function `preg_replace` is possibly `null`, but parameter type `array<array-key, string>|string` does not accept it."
+message = "Argument #3 of function `preg_replace` is possibly `null`, but parameter type `array<('K.preg_replace() extends array-key), string>|string` does not accept it."
 count = 1
 
 [[issues]]
@@ -1098,17 +1044,11 @@ code = "mixed-array-access"
 message = "Unsafe array access on type `mixed`."
 count = 1
 
-[[issues]]
-file = "module/Core/src/Config/PostProcessor/ShortUrlMethodsProcessor.php"
-code = "mixed-array-assignment"
-message = "Unsafe array assignment on type `nonnull`."
-count = 1
-
 [[issues]]
 file = "module/Core/src/Config/PostProcessor/ShortUrlMethodsProcessor.php"
 code = "mixed-assignment"
 message = "Assigning `mixed` type to a variable may lead to unexpected behavior."
-count = 2
+count = 1
 
 [[issues]]
 file = "module/Core/src/Config/PostProcessor/ShortUrlMethodsProcessor.php"
@@ -1452,12 +1392,6 @@ code = "possibly-null-argument"
 message = 'Argument #2 of method `Happyr\DoctrineSpecification\Repository\EntitySpecificationRepositoryTrait::applySpecification` is possibly `null`, but parameter type `Happyr\DoctrineSpecification\Filter\Filter|Happyr\DoctrineSpecification\Query\QueryModifier` does not accept it.'
 count = 1
 
-[[issues]]
-file = "module/Core/src/ShortUrl/Repository/ShortUrlListRepository.php"
-code = "possibly-null-property-access"
-message = "Attempting to access a property on a possibly `null` value."
-count = 2
-
 [[issues]]
 file = "module/Core/src/ShortUrl/Repository/ShortUrlRepository.php"
 code = "mixed-assignment"
@@ -1764,12 +1698,6 @@ code = "mixed-method-access"
 message = "Attempting to access a method on a non-object type (`mixed`)."
 count = 1
 
-[[issues]]
-file = "module/Core/src/Visit/Repository/VisitIterationRepository.php"
-code = "possibly-null-property-access"
-message = "Attempting to access a property on a possibly `null` value."
-count = 2
-
 [[issues]]
 file = "module/Core/src/Visit/Repository/VisitRepository.php"
 code = "array-to-string-conversion"
@@ -1806,12 +1734,6 @@ code = "less-specific-nested-return-statement"
 message = '''Returned type `array<array-key, mixed>` is less specific than the declared return type `array<array-key, Shlinkio\Shlink\Core\Visit\Entity\Visit>` for function `Shlinkio\Shlink\Core\Visit\Repository\VisitRepository::findVisitsByTag` due to nested 'mixed'.'''
 count = 1
 
-[[issues]]
-file = "module/Core/src/Visit/Repository/VisitRepository.php"
-code = "mixed-argument"
-message = 'Invalid argument type for argument #1 of `Doctrine\DBAL\Connection::quote`: expected `string`, but found `mixed`.'
-count = 2
-
 [[issues]]
 file = "module/Core/src/Visit/Repository/VisitRepository.php"
 code = "mixed-return-statement"
@@ -1824,24 +1746,12 @@ code = "mixed-return-statement"
 message = 'Could not infer a precise return type for function `Shlinkio\Shlink\Core\Visit\Repository\VisitRepository::resolveVisitsWithNativeQuery`. Saw type `mixed`.'
 count = 1
 
-[[issues]]
-file = "module/Core/src/Visit/Repository/VisitRepository.php"
-code = "possible-method-access-on-null"
-message = "Attempting to call a method on `null`."
-count = 2
-
 [[issues]]
 file = "module/Core/src/Visit/Repository/VisitRepository.php"
 code = "possibly-null-argument"
 message = 'Argument #2 of method `Happyr\DoctrineSpecification\Repository\EntitySpecificationRepositoryTrait::applySpecification` is possibly `null`, but parameter type `Happyr\DoctrineSpecification\Filter\Filter|Happyr\DoctrineSpecification\Query\QueryModifier` does not accept it.'
 count = 3
 
-[[issues]]
-file = "module/Core/src/Visit/Repository/VisitRepository.php"
-code = "possibly-null-property-access"
-message = "Attempting to access a property on a possibly `null` value."
-count = 2
-
 [[issues]]
 file = "module/Core/src/Visit/RequestTracker.php"
 code = "mixed-assignment"
@@ -2118,12 +2028,6 @@ code = "less-specific-argument"
 message = 'Argument type mismatch for argument #1 of `ShlinkioTest\Shlink\Core\RedirectRule\Entity\ShortUrlRedirectRuleTest::createRule`: expected `Doctrine\Common\Collections\ArrayCollection<int, Shlinkio\Shlink\Core\RedirectRule\Entity\RedirectCondition>`, but provided type `Doctrine\Common\Collections\ArrayCollection<array-key, mixed>` is less specific.'
 count = 1
 
-[[issues]]
-file = "module/Core/test/ShortUrl/Entity/ShortUrlTest.php"
-code = "possibly-invalid-argument"
-message = 'Possible argument type mismatch for argument #1 of `PHPUnit\Framework\Assert::assertStringStartsWith`: expected `non-empty-string`, but possibly received `string`.'
-count = 1
-
 [[issues]]
 file = "module/Core/test/ShortUrl/Helper/ShortCodeUniquenessHelperTest.php"
 code = "redundant-comparison"

diff --git a/module/CLI/src/Util/PhpProcessRunner.php b/module/CLI/src/Util/PhpProcessRunner.php
@@ -19,6 +19,9 @@ public function __construct(private ProcessRunnerInterface $wrappedProcessRunner
         $this->phpBinary = $phpFinder->find(includeArgs: false) ?: 'php';
     }
 
+    /**
+     * @inheritDoc
+     */
     public function run(OutputInterface $output, array $cmd): void
     {
         $this->wrappedProcessRunner->run($output, [$this->phpBinary, ...$cmd]);

diff --git a/module/CLI/src/Util/ProcessRunner.php b/module/CLI/src/Util/ProcessRunner.php
@@ -11,23 +11,30 @@
 use Symfony\Component\Console\Output\OutputInterface;
 use Symfony\Component\Process\Process;
 
-use function spl_object_hash;
+use function spl_object_id;
 use function sprintf;
 use function str_replace;
 
 class ProcessRunner implements ProcessRunnerInterface
 {
     private const int TIMEOUT = 1_200; // 20 minutes
 
+    /** @var Closure(string[] $cmd): Process */
     private Closure $createProcess;
 
+    /**
+     * @param null|(callable(string[] $cmd): Process) $createProcess
+     */
     public function __construct(private readonly ProcessHelper $helper, callable|null $createProcess = null)
     {
         $this->createProcess = $createProcess !== null
             ? $createProcess(...)
             : static fn (array $cmd) => new Process($cmd, timeout: self::TIMEOUT);
     }
 
+    /**
+     * @inheritDoc
+     */
     public function run(OutputInterface $output, array $cmd): void
     {
         if ($output instanceof ConsoleOutputInterface) {
@@ -40,7 +47,10 @@ public function run(OutputInterface $output, array $cmd): void
 
         if ($output->isVeryVerbose()) {
             $output->write(
-                $formatter->start(spl_object_hash($process), str_replace('<', '\\<', $process->getCommandLine())),
+                $formatter->start(
+                    (string) spl_object_id($process),
+                    str_replace('<', '\\<', $process->getCommandLine()),
+                ),
             );
         }
 
@@ -54,7 +64,7 @@ public function run(OutputInterface $output, array $cmd): void
                     '%s Command did not run successfully',
                     $process->getExitCode(),
                 );
-            $output->write($formatter->stop(spl_object_hash($process), $message, $process->isSuccessful()));
+            $output->write($formatter->stop((string) spl_object_id($process), $message, $process->isSuccessful()));
         }
     }
 }
diff --git a/module/CLI/src/Util/ProcessRunnerInterface.php b/module/CLI/src/Util/ProcessRunnerInterface.php
@@ -8,5 +8,8 @@
 
 interface ProcessRunnerInterface
 {
+    /**
+     * @param string[] $cmd
+     */
     public function run(OutputInterface $output, array $cmd): void;
 }
diff --git a/module/Core/src/ShortUrl/Helper/ShortUrlTitleResolutionHelper.php b/module/Core/src/ShortUrl/Helper/ShortUrlTitleResolutionHelper.php
@@ -117,10 +117,12 @@ private function tryToResolveTitle(ResponseInterface $response, string $contentT
         }
 
         return (
-            $this->encodeToUtf8WithMbString($titleInOriginalEncoding, $pageCharset) ?? $this->encodeToUtf8WithIconv(
+            $this->encodeToUtf8WithMbString($titleInOriginalEncoding, $pageCharset)
+            ?? $this->encodeToUtf8WithIconv(
                 $titleInOriginalEncoding,
                 $pageCharset,
-            ) ?? $titleInOriginalEncoding
+            )
+            ?? $titleInOriginalEncoding
         );
     }
 

diff --git a/module/Core/src/ShortUrl/Persistence/ShortUrlsCountFiltering.php b/module/Core/src/ShortUrl/Persistence/ShortUrlsCountFiltering.php
@@ -34,12 +34,13 @@ public function __construct(
         public readonly TagsMode $excludeTagsMode = TagsMode::ANY,
         string|null $apiKeyName = null,
     ) {
-        $this->searchIncludesDefaultDomain = !empty($searchTerm)
-        && !empty($defaultDomain)
-        && str_contains(
-            strtolower($defaultDomain),
-            strtolower($searchTerm),
-        );
+        $this->searchIncludesDefaultDomain =
+            !empty($searchTerm)
+            && !empty($defaultDomain)
+            && str_contains(
+                strtolower($defaultDomain),
+                strtolower($searchTerm),
+            );
 
         // Filtering by API key name is only allowed if the API key used in the request is an admin one, or it matches
         // the API key name