diff --git a/Application.php b/Application.php
index 4cf2a0c4c..4ce5022a3 100644
--- a/Application.php
+++ b/Application.php
@@ -353,9 +353,18 @@ public function complete(CompletionInput $input, CompletionSuggestions $suggesti
             CompletionInput::TYPE_ARGUMENT_VALUE === $input->getCompletionType()
             && 'command' === $input->getCompletionName()
         ) {
-            $suggestions->suggestValues(array_filter(array_map(function (Command $command) {
-                return $command->isHidden() ? null : $command->getName();
-            }, $this->all())));
+            $commandNames = [];
+            foreach ($this->all() as $name => $command) {
+                // skip hidden commands and aliased commands as they already get added below
+                if ($command->isHidden() || $command->getName() !== $name) {
+                    continue;
+                }
+                $commandNames[] = $command->getName();
+                foreach ($command->getAliases() as $name) {
+                    $commandNames[] = $name;
+                }
+            }
+            $suggestions->suggestValues(array_filter($commandNames));
 
             return;
         }
diff --git a/Command/CompleteCommand.php b/Command/CompleteCommand.php
index 97357d673..a94021ce4 100644
--- a/Command/CompleteCommand.php
+++ b/Command/CompleteCommand.php
@@ -105,11 +105,12 @@ protected function execute(InputInterface $input, OutputInterface $output): int
             } elseif (
                 $completionInput->mustSuggestArgumentValuesFor('command')
                 && $command->getName() !== $completionInput->getCompletionValue()
+                && !\in_array($completionInput->getCompletionValue(), $command->getAliases(), true)
             ) {
                 $this->log('  No command found, completing using the Application class.');
 
                 // expand shortcut names ("cache:cl<TAB>") into their full name ("cache:clear")
-                $suggestions->suggestValue($command->getName());
+                $suggestions->suggestValues(array_filter(array_merge([$command->getName()], $command->getAliases())));
             } else {
                 $command->mergeApplicationDefinition();
                 $completionInput->bind($command->getDefinition());
diff --git a/Command/DumpCompletionCommand.php b/Command/DumpCompletionCommand.php
index 64a800530..dc0cfaef7 100644
--- a/Command/DumpCompletionCommand.php
+++ b/Command/DumpCompletionCommand.php
@@ -41,7 +41,7 @@ protected function configure()
     {
         $fullCommand = $_SERVER['PHP_SELF'];
         $commandName = basename($fullCommand);
-        $fullCommand = realpath($fullCommand) ?: $fullCommand;
+        $fullCommand = @realpath($fullCommand) ?: $fullCommand;
 
         $this
             ->setHelp(<<<EOH
@@ -53,7 +53,7 @@ protected function configure()
 
 Dump the script to a global completion file and restart your shell:
 
-    <info>%command.full_name% bash | sudo tee /etc/bash_completion.d/${commandName}</>
+    <info>%command.full_name% bash | sudo tee /etc/bash_completion.d/{$commandName}</>
 
 Or dump the script to a local file and source it:
 
@@ -70,7 +70,7 @@ protected function configure()
 
 Add this to the end of your shell configuration file (e.g. <info>"~/.bashrc"</>):
 
-    <info>eval "$(${fullCommand} completion bash)"</>
+    <info>eval "$({$fullCommand} completion bash)"</>
 EOH
             )
             ->addArgument('shell', InputArgument::OPTIONAL, 'The shell type (e.g. "bash"), the value of the "$SHELL" env var will be used if this is not given')
diff --git a/Completion/Output/BashCompletionOutput.php b/Completion/Output/BashCompletionOutput.php
index 8d5ffa6b6..c6f76eb8f 100644
--- a/Completion/Output/BashCompletionOutput.php
+++ b/Completion/Output/BashCompletionOutput.php
@@ -24,6 +24,9 @@ public function write(CompletionSuggestions $suggestions, OutputInterface $outpu
         $values = $suggestions->getValueSuggestions();
         foreach ($suggestions->getOptionSuggestions() as $option) {
             $values[] = '--'.$option->getName();
+            if ($option->isNegatable()) {
+                $values[] = '--no-'.$option->getName();
+            }
         }
         $output->writeln(implode("\n", $values));
     }
diff --git a/Helper/Table.php b/Helper/Table.php
index e9ce35d4b..4636ef84b 100644
--- a/Helper/Table.php
+++ b/Helper/Table.php
@@ -561,7 +561,7 @@ private function buildTableRows(array $rows): TableRows
                 }
                 $escaped = implode("\n", array_map([OutputFormatter::class, 'escapeTrailingBackslash'], explode("\n", $cell)));
                 $cell = $cell instanceof TableCell ? new TableCell($escaped, ['colspan' => $cell->getColspan()]) : $escaped;
-                $lines = explode("\n", str_replace("\n", "<fg=default;bg=default>\n</>", $cell));
+                $lines = explode("\n", str_replace("\n", "<fg=default;bg=default></>\n", $cell));
                 foreach ($lines as $lineKey => $line) {
                     if ($colspan > 1) {
                         $line = new TableCell($line, ['colspan' => $colspan]);
@@ -738,18 +738,18 @@ private function calculateColumnsWidth(iterable $groups)
                         continue;
                     }
 
-                foreach ($row as $i => $cell) {
-                    if ($cell instanceof TableCell) {
-                        $textContent = Helper::removeDecoration($this->output->getFormatter(), $cell);
-                        $textLength = Helper::width($textContent);
-                        if ($textLength > 0) {
-                            $contentColumns = str_split($textContent, ceil($textLength / $cell->getColspan()));
-                            foreach ($contentColumns as $position => $content) {
-                                $row[$i + $position] = $content;
+                    foreach ($row as $i => $cell) {
+                        if ($cell instanceof TableCell) {
+                            $textContent = Helper::removeDecoration($this->output->getFormatter(), $cell);
+                            $textLength = Helper::width($textContent);
+                            if ($textLength > 0) {
+                                $contentColumns = str_split($textContent, ceil($textLength / $cell->getColspan()));
+                                foreach ($contentColumns as $position => $content) {
+                                    $row[$i + $position] = $content;
+                                }
                             }
                         }
                     }
-                }
 
                     $lengths[] = $this->getCellWidth($row, $column);
                 }
diff --git a/Input/InputArgument.php b/Input/InputArgument.php
index 143e4b10a..1e666ee1c 100644
--- a/Input/InputArgument.php
+++ b/Input/InputArgument.php
@@ -88,7 +88,7 @@ public function isArray(): bool
      */
     public function setDefault(string|bool|int|float|array $default = null)
     {
-        if (self::REQUIRED === $this->mode && null !== $default) {
+        if ($this->isRequired() && null !== $default) {
             throw new LogicException('Cannot set a default value except for InputArgument::OPTIONAL mode.');
         }
 
diff --git a/Tests/Command/CompleteCommandTest.php b/Tests/Command/CompleteCommandTest.php
index 189928897..642d5c69a 100644
--- a/Tests/Command/CompleteCommandTest.php
+++ b/Tests/Command/CompleteCommandTest.php
@@ -102,9 +102,10 @@ public function testCompleteCommandName(array $input, array $suggestions)
 
     public function provideCompleteCommandNameInputs()
     {
-        yield 'empty' => [['bin/console'], ['help', 'list', 'completion', 'hello']];
-        yield 'partial' => [['bin/console', 'he'], ['help', 'list', 'completion', 'hello']];
-        yield 'complete-shortcut-name' => [['bin/console', 'hell'], ['hello']];
+        yield 'empty' => [['bin/console'], ['help', 'list', 'completion', 'hello', 'ahoy']];
+        yield 'partial' => [['bin/console', 'he'], ['help', 'list', 'completion', 'hello', 'ahoy']];
+        yield 'complete-shortcut-name' => [['bin/console', 'hell'], ['hello', 'ahoy']];
+        yield 'complete-aliases' => [['bin/console', 'ah'], ['hello', 'ahoy']];
     }
 
     /**
@@ -118,8 +119,10 @@ public function testCompleteCommandInputDefinition(array $input, array $suggesti
 
     public function provideCompleteCommandInputDefinitionInputs()
     {
-        yield 'definition' => [['bin/console', 'hello', '-'], ['--help', '--quiet', '--verbose', '--version', '--ansi', '--no-interaction']];
+        yield 'definition' => [['bin/console', 'hello', '-'], ['--help', '--quiet', '--verbose', '--version', '--ansi', '--no-ansi', '--no-interaction']];
         yield 'custom' => [['bin/console', 'hello'], ['Fabien', 'Robin', 'Wouter']];
+        yield 'definition-aliased' => [['bin/console', 'ahoy', '-'], ['--help', '--quiet', '--verbose', '--version', '--ansi', '--no-ansi', '--no-interaction']];
+        yield 'custom-aliased' => [['bin/console', 'ahoy'], ['Fabien', 'Robin', 'Wouter']];
     }
 
     private function execute(array $input)
@@ -134,6 +137,7 @@ class CompleteCommandTest_HelloCommand extends Command
     public function configure(): void
     {
         $this->setName('hello')
+             ->setAliases(['ahoy'])
              ->addArgument('name', InputArgument::REQUIRED)
          ;
     }
diff --git a/Tests/Completion/Output/BashCompletionOutputTest.php b/Tests/Completion/Output/BashCompletionOutputTest.php
new file mode 100644
index 000000000..84ec56acc
--- /dev/null
+++ b/Tests/Completion/Output/BashCompletionOutputTest.php
@@ -0,0 +1,33 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Console\Tests\Completion\Output;
+
+use Symfony\Component\Console\Completion\Output\BashCompletionOutput;
+use Symfony\Component\Console\Completion\Output\CompletionOutputInterface;
+
+class BashCompletionOutputTest extends CompletionOutputTestCase
+{
+    public function getCompletionOutput(): CompletionOutputInterface
+    {
+        return new BashCompletionOutput();
+    }
+
+    public function getExpectedOptionsOutput(): string
+    {
+        return "--option1\n--negatable\n--no-negatable".\PHP_EOL;
+    }
+
+    public function getExpectedValuesOutput(): string
+    {
+        return "Green\nRed\nYellow".\PHP_EOL;
+    }
+}
diff --git a/Tests/Completion/Output/CompletionOutputTestCase.php b/Tests/Completion/Output/CompletionOutputTestCase.php
new file mode 100644
index 000000000..c4551e5b6
--- /dev/null
+++ b/Tests/Completion/Output/CompletionOutputTestCase.php
@@ -0,0 +1,51 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Console\Tests\Completion\Output;
+
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\Console\Completion\CompletionSuggestions;
+use Symfony\Component\Console\Completion\Output\CompletionOutputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\StreamOutput;
+
+abstract class CompletionOutputTestCase extends TestCase
+{
+    abstract public function getCompletionOutput(): CompletionOutputInterface;
+
+    abstract public function getExpectedOptionsOutput(): string;
+
+    abstract public function getExpectedValuesOutput(): string;
+
+    public function testOptionsOutput()
+    {
+        $options = [
+            new InputOption('option1', 'o', InputOption::VALUE_NONE),
+            new InputOption('negatable', null, InputOption::VALUE_NEGATABLE),
+        ];
+        $suggestions = new CompletionSuggestions();
+        $suggestions->suggestOptions($options);
+        $stream = fopen('php://memory', 'rw+');
+        $this->getCompletionOutput()->write($suggestions, new StreamOutput($stream));
+        fseek($stream, 0);
+        $this->assertEquals($this->getExpectedOptionsOutput(), stream_get_contents($stream));
+    }
+
+    public function testValuesOutput()
+    {
+        $suggestions = new CompletionSuggestions();
+        $suggestions->suggestValues(['Green', 'Red', 'Yellow']);
+        $stream = fopen('php://memory', 'rw+');
+        $this->getCompletionOutput()->write($suggestions, new StreamOutput($stream));
+        fseek($stream, 0);
+        $this->assertEquals($this->getExpectedValuesOutput(), stream_get_contents($stream));
+    }
+}
diff --git a/Tests/Helper/TableTest.php b/Tests/Helper/TableTest.php
index 8465c51dc..9d944084b 100644
--- a/Tests/Helper/TableTest.php
+++ b/Tests/Helper/TableTest.php
@@ -616,8 +616,8 @@ public function renderProvider()
                 'default',
                 <<<'TABLE'
 +-------+------------+
-| Dont break         |
-| here               |
+| Dont break         |
+| here               |
 +-------+------------+
 | foo   | Dont break |
 | bar   | here       |
@@ -1285,6 +1285,26 @@ public function renderSetTitle()
 | 80-902734-1-6 | And Then There Were None | Agatha Christie  |
 +---------------+--------- Page 1/2 -------+------------------+
 
+TABLE
+                ,
+                true,
+           ],
+            'header contains multiple lines' => [
+                'Multiline'."\n".'header'."\n".'here',
+                'footer',
+                'default',
+                <<<'TABLE'
++---------------+---- Multiline
+header
+here -+------------------+
+| ISBN          | Title                    | Author           |
++---------------+--------------------------+------------------+
+| 99921-58-10-7 | Divine Comedy            | Dante Alighieri  |
+| 9971-5-0210-0 | A Tale of Two Cities     | Charles Dickens  |
+| 960-425-059-0 | The Lord of the Rings    | J. R. R. Tolkien |
+| 80-902734-1-6 | And Then There Were None | Agatha Christie  |
++---------------+---------- footer --------+------------------+
+
 TABLE
             ],
             [
diff --git a/Tests/Input/InputArgumentTest.php b/Tests/Input/InputArgumentTest.php
index 39a3de5c6..e3cf92467 100644
--- a/Tests/Input/InputArgumentTest.php
+++ b/Tests/Input/InputArgumentTest.php
@@ -88,6 +88,14 @@ public function testSetDefaultWithRequiredArgument()
         $argument->setDefault('default');
     }
 
+    public function testSetDefaultWithRequiredArrayArgument()
+    {
+        $this->expectException(\LogicException::class);
+        $this->expectExceptionMessage('Cannot set a default value except for InputArgument::OPTIONAL mode.');
+        $argument = new InputArgument('foo', InputArgument::REQUIRED | InputArgument::IS_ARRAY);
+        $argument->setDefault([]);
+    }
+
     public function testSetDefaultWithArrayArgument()
     {
         $this->expectException(\LogicException::class);

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