diff --git a/psalm-baseline.xml b/psalm-baseline.xml
index 8d205b058..987aab124 100644
--- a/psalm-baseline.xml
+++ b/psalm-baseline.xml
@@ -1,10 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<files psalm-version="5.x-dev@ba4e312594006059b0d9afb0c5ebeea649a59112">
-  <file src="vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ArrowFunction.php">
-    <PossiblyUndefinedStringArrayOffset>
-      <code><![CDATA[$subNodes['expr']]]></code>
-    </PossiblyUndefinedStringArrayOffset>
-  </file>
+<files psalm-version="5.x-dev@a46a07c5ca8bd7b54d1ca814c1f5b5ed38a0ba90">
   <file src="examples/TemplateChecker.php">
     <PossiblyUndefinedIntArrayOffset>
       <code><![CDATA[$comment_block->tags['variablesfrom'][0]]]></code>
@@ -75,7 +70,6 @@
       <code><![CDATA[!$config_path]]></code>
       <code><![CDATA[!$file_path]]></code>
       <code><![CDATA[!strpos($issue_type, 'Reference')]]></code>
-      <code><![CDATA[$cwd]]></code>
       <code><![CDATA[$dir]]></code>
       <code><![CDATA[$e->function_id]]></code>
       <code><![CDATA[$igbinary_version = phpversion('igbinary')]]></code>
@@ -716,6 +710,7 @@
       <code><![CDATA[$overridden_template_types]]></code>
       <code><![CDATA[$static_class_storage->template_extended_params]]></code>
       <code><![CDATA[$static_class_storage->template_types]]></code>
+      <code><![CDATA[empty($non_trait_class_storage->overridden_method_ids[$method_name])]]></code>
     </RiskyTruthyFalsyComparison>
   </file>
   <file src="src/Psalm/Internal/Analyzer/Statements/Expression/Call/FunctionCallAnalyzer.php">
@@ -865,8 +860,6 @@
       <code><![CDATA[!$context->self]]></code>
       <code><![CDATA[!$fq_class_name]]></code>
       <code><![CDATA[$class_storage->mixin_declaring_fqcln]]></code>
-      <code><![CDATA[$class_storage->parent_class]]></code>
-      <code><![CDATA[$class_storage->parent_class]]></code>
       <code><![CDATA[$context->calling_method_id]]></code>
       <code><![CDATA[$context->calling_method_id]]></code>
       <code><![CDATA[$context->self]]></code>
@@ -945,8 +938,6 @@
       <code><![CDATA[$extended_var_id]]></code>
       <code><![CDATA[$keyed_array_var_id]]></code>
       <code><![CDATA[$keyed_array_var_id]]></code>
-      <code><![CDATA[$keyed_array_var_id]]></code>
-      <code><![CDATA[$keyed_array_var_id]]></code>
     </RiskyTruthyFalsyComparison>
   </file>
   <file src="src/Psalm/Internal/Analyzer/Statements/Expression/Fetch/AtomicPropertyFetchAnalyzer.php">
@@ -1104,7 +1095,6 @@
   </file>
   <file src="src/Psalm/Internal/Cli/LanguageServer.php">
     <RiskyTruthyFalsyComparison>
-      <code><![CDATA[!$root_path]]></code>
       <code><![CDATA[$options['verbose']]]></code>
     </RiskyTruthyFalsyComparison>
   </file>
@@ -1115,9 +1105,6 @@
     <RiskyTruthyFalsyComparison>
       <code><![CDATA[!$config->error_baseline]]></code>
       <code><![CDATA[!$paths_to_check]]></code>
-      <code><![CDATA[!$root_path]]></code>
-      <code><![CDATA[!file_put_contents($current_dir . 'psalm.xml', $template_contents)]]></code>
-      <code><![CDATA[!file_put_contents($current_dir . 'psalm.xml', $template_contents)]]></code>
       <code><![CDATA[$baseline_file_path]]></code>
       <code><![CDATA[$cache_directory]]></code>
       <code><![CDATA[$config->threads]]></code>
@@ -1128,7 +1115,6 @@
   </file>
   <file src="src/Psalm/Internal/Cli/Psalter.php">
     <RiskyTruthyFalsyComparison>
-      <code><![CDATA[!$root_path]]></code>
       <code><![CDATA[$paths_to_check]]></code>
     </RiskyTruthyFalsyComparison>
   </file>
@@ -1140,7 +1126,6 @@
       <code><![CDATA[!$last_arg]]></code>
       <code><![CDATA[!$last_arg]]></code>
       <code><![CDATA[!$last_arg]]></code>
-      <code><![CDATA[!$root_path]]></code>
       <code><![CDATA[strpos($last_arg_part, '::')]]></code>
     </RiskyTruthyFalsyComparison>
   </file>
@@ -1201,11 +1186,7 @@
       <code><![CDATA[$file_path]]></code>
       <code><![CDATA[$migrated_source_fqcln]]></code>
       <code><![CDATA[$migrated_source_fqcln]]></code>
-    </RiskyTruthyFalsyComparison>
-  </file>
-  <file src="src/Psalm/Internal/Codebase/ConstantTypeResolver.php">
-    <RiskyTruthyFalsyComparison>
-      <code><![CDATA[$cond->value]]></code>
+      <code><![CDATA[empty($classlike_storage->overridden_method_ids[$method_name])]]></code>
     </RiskyTruthyFalsyComparison>
   </file>
   <file src="src/Psalm/Internal/Codebase/Functions.php">
@@ -1441,7 +1422,6 @@
   </file>
   <file src="src/Psalm/Internal/PhpVisitor/Reflector/ClassLikeDocblockParser.php">
     <PossiblyUndefinedIntArrayOffset>
-      <code><![CDATA[$doc_line_parts[1]]]></code>
       <code><![CDATA[$matches[0]]]></code>
       <code><![CDATA[$method_tree->children[0]]]></code>
       <code><![CDATA[$method_tree->children[1]]]></code>
@@ -1475,6 +1455,9 @@
       <code><![CDATA[$var_comment->line_number]]></code>
       <code><![CDATA[$var_comment->type_end]]></code>
       <code><![CDATA[$var_comment->type_start]]></code>
+      <code><![CDATA[empty($imported_type_data[0])]]></code>
+      <code><![CDATA[empty($imported_type_data[2])]]></code>
+      <code><![CDATA[empty($imported_type_data[4])]]></code>
     </RiskyTruthyFalsyComparison>
   </file>
   <file src="src/Psalm/Internal/PhpVisitor/Reflector/ExpressionResolver.php">
@@ -1498,12 +1481,12 @@
     </RiskyTruthyFalsyComparison>
   </file>
   <file src="src/Psalm/Internal/PhpVisitor/Reflector/FunctionLikeDocblockParser.php">
-    <PossiblyUndefinedIntArrayOffset>
-      <code><![CDATA[$since_parts[1]]]></code>
-    </PossiblyUndefinedIntArrayOffset>
     <RedundantCondition>
       <code><![CDATA[count($line_parts) > 0]]></code>
     </RedundantCondition>
+    <RiskyTruthyFalsyComparison>
+      <code><![CDATA[empty($since_match[4])]]></code>
+    </RiskyTruthyFalsyComparison>
   </file>
   <file src="src/Psalm/Internal/PhpVisitor/Reflector/FunctionLikeDocblockScanner.php">
     <PossiblyUndefinedArrayOffset>
@@ -1636,6 +1619,13 @@
   <file src="src/Psalm/Internal/Provider/FileReferenceProvider.php">
     <RiskyTruthyFalsyComparison>
       <code><![CDATA[$this->cache->getFileMapCache()]]></code>
+      <code><![CDATA[empty(self::$file_references_to_class_members[$method_id])]]></code>
+      <code><![CDATA[empty(self::$file_references_to_class_properties[$property_id])]]></code>
+      <code><![CDATA[empty(self::$file_references_to_method_returns[$method_id])]]></code>
+      <code><![CDATA[empty(self::$method_param_uses[$method_id][$offset])]]></code>
+      <code><![CDATA[empty(self::$method_references_to_class_members[$method_id])]]></code>
+      <code><![CDATA[empty(self::$method_references_to_class_properties[$property_id])]]></code>
+      <code><![CDATA[empty(self::$method_references_to_method_returns[$method_id])]]></code>
     </RiskyTruthyFalsyComparison>
   </file>
   <file src="src/Psalm/Internal/Provider/FileStorageCacheProvider.php">
@@ -1730,6 +1720,7 @@
   <file src="src/Psalm/Internal/Scanner/DocblockParser.php">
     <RiskyTruthyFalsyComparison>
       <code><![CDATA[$first_line_padding]]></code>
+      <code><![CDATA[empty($special[$type])]]></code>
     </RiskyTruthyFalsyComparison>
   </file>
   <file src="src/Psalm/Internal/Scanner/PhpStormMetaScanner.php">
@@ -1884,6 +1875,7 @@
   <file src="src/Psalm/Internal/Type/TemplateInferredTypeReplacer.php">
     <RiskyTruthyFalsyComparison>
       <code><![CDATA[$classlike_storage->template_extended_params]]></code>
+      <code><![CDATA[empty($inferred_lower_bounds[$atomic_type->offset_param_name])]]></code>
     </RiskyTruthyFalsyComparison>
   </file>
   <file src="src/Psalm/Internal/Type/TemplateStandinTypeReplacer.php">
@@ -1897,6 +1889,7 @@
       <code><![CDATA[empty($class_storage->template_extended_params[$container_class])]]></code>
       <code><![CDATA[empty($classlike_storage->template_extended_params[$base_type->as_type->value])]]></code>
       <code><![CDATA[empty($classlike_storage->template_extended_params[$base_type->value])]]></code>
+      <code><![CDATA[empty($template_result->lower_bounds[$atomic_type->offset_param_name])]]></code>
       <code><![CDATA[strpos($key, '&')]]></code>
     </RiskyTruthyFalsyComparison>
   </file>
@@ -1929,9 +1922,6 @@
       <code><![CDATA[$combination->strings]]></code>
       <code><![CDATA[$combination->strings]]></code>
       <code><![CDATA[$combination->strings]]></code>
-      <code><![CDATA[$combination->value_types['string'] instanceof TNonFalsyString
-                        ? $type->value
-                        : $type->value !== '']]></code>
       <code><![CDATA[$shared_classlikes]]></code>
     </RiskyTruthyFalsyComparison>
   </file>
@@ -2278,7 +2268,6 @@
     <RiskyTruthyFalsyComparison>
       <code><![CDATA[!strpos($key, '$')]]></code>
       <code><![CDATA[!strpos($key, '[')]]></code>
-      <code><![CDATA[$array_key_offset]]></code>
       <code><![CDATA[$failed_reconciliation]]></code>
       <code><![CDATA[strpos($base_key, '::')]]></code>
       <code><![CDATA[strpos($key, '::')]]></code>
@@ -2348,6 +2337,11 @@
       <code><![CDATA[strpos(static::class, 'Unused')]]></code>
     </RiskyTruthyFalsyComparison>
   </file>
+  <file src="tests/Internal/Codebase/InternalCallMapHandlerTest.php">
+    <RiskyTruthyFalsyComparison>
+      <code><![CDATA[empty($normalizedEntry['type'])]]></code>
+    </RiskyTruthyFalsyComparison>
+  </file>
   <file src="tests/TypeParseTest.php">
     <RiskyTruthyFalsyComparison>
       <code><![CDATA[$param_type_1]]></code>
@@ -2357,4 +2351,9 @@
       <code><![CDATA[$return_type]]></code>
     </RiskyTruthyFalsyComparison>
   </file>
+  <file src="vendor/nikic/php-parser/lib/PhpParser/Node/Expr/ArrowFunction.php">
+    <PossiblyUndefinedStringArrayOffset>
+      <code><![CDATA[$subNodes['expr']]]></code>
+    </PossiblyUndefinedStringArrayOffset>
+  </file>
 </files>
diff --git a/src/Psalm/Internal/Analyzer/Statements/Expression/Fetch/ArrayFetchAnalyzer.php b/src/Psalm/Internal/Analyzer/Statements/Expression/Fetch/ArrayFetchAnalyzer.php
index 7f8121133..34ed8f510 100644
--- a/src/Psalm/Internal/Analyzer/Statements/Expression/Fetch/ArrayFetchAnalyzer.php
+++ b/src/Psalm/Internal/Analyzer/Statements/Expression/Fetch/ArrayFetchAnalyzer.php
@@ -171,7 +171,7 @@ final class ArrayFetchAnalyzer
 
         $codebase = $statements_analyzer->getCodebase();
 
-        if ($keyed_array_var_id
+        if ($keyed_array_var_id !== null
             && $context->hasVariable($keyed_array_var_id)
             && !$context->vars_in_scope[$keyed_array_var_id]->possibly_undefined
             && $stmt_var_type
@@ -250,6 +250,10 @@ final class ArrayFetchAnalyzer
                 }
             }
 
+            if ($context->inside_isset && !$stmt_type->hasMixed()) {
+                $stmt_type = Type::combineUnionTypes($stmt_type, Type::getNull());
+            }
+
             $statements_analyzer->node_data->setType($stmt, $stmt_type);
 
             if ($context->inside_isset
@@ -304,7 +308,7 @@ final class ArrayFetchAnalyzer
             }
         }
 
-        if ($keyed_array_var_id
+        if ($keyed_array_var_id !== null
             && $context->hasVariable($keyed_array_var_id)
             && (!($stmt_type = $statements_analyzer->node_data->getType($stmt)) || $stmt_type->isVanillaMixed())
         ) {
diff --git a/tests/ArrayAssignmentTest.php b/tests/ArrayAssignmentTest.php
index fa65da822..488550453 100644
--- a/tests/ArrayAssignmentTest.php
+++ b/tests/ArrayAssignmentTest.php
@@ -1234,6 +1234,8 @@ class ArrayAssignmentTest extends TestCase
                             foreach ($arr[0] as $k => $v) {}
                         }
                     }',
+                'assertions' => [],
+                'ignored_issues' => ['RiskyTruthyFalsyComparison'],
             ],
             'nonEmptyAssignmentToListElement' => [
                 'code' => '<?php
diff --git a/tests/ArrayFunctionCallTest.php b/tests/ArrayFunctionCallTest.php
index 8604de266..6abaf96ba 100644
--- a/tests/ArrayFunctionCallTest.php
+++ b/tests/ArrayFunctionCallTest.php
@@ -2602,6 +2602,7 @@ class ArrayFunctionCallTest extends TestCase
                 'assertions' => [
                     '$line===' => 'array{0: int, ...<array-key, int>}',
                 ],
+                'ignored_issues' => ['RiskyTruthyFalsyComparison'],
             ],
             'arrayUnshiftOnEmptyArrayMeansNonEmptyList' => [
                 'code' => '<?php
diff --git a/tests/TypeReconciliation/EmptyTest.php b/tests/TypeReconciliation/EmptyTest.php
index 6cc6133f5..bce863e0d 100644
--- a/tests/TypeReconciliation/EmptyTest.php
+++ b/tests/TypeReconciliation/EmptyTest.php
@@ -231,6 +231,8 @@ class EmptyTest extends TestCase
                     function foo(array $o) : void {
                         if (empty($o[0]) && empty($o[1])) {}
                     }',
+                'assertions' => [],
+                'ignored_issues' => ['RiskyTruthyFalsyComparison'],
             ],
             'multipleEmptiesInConditionWithMixedOffset' => [
                 'code' => '<?php
@@ -315,6 +317,8 @@ class EmptyTest extends TestCase
                             if (empty($data[Foo::ONE])) {}
                         }
                     }',
+                'assertions' => [],
+                'ignored_issues' => ['RiskyTruthyFalsyComparison'],
             ],
             'doubleEmptyCheckTwoArrays' => [
                 'code' => '<?php
@@ -330,6 +334,8 @@ class EmptyTest extends TestCase
                     function foo(array $arr) : void {
                         if (empty($arr["a"]) && empty($arr["b"])) {}
                     }',
+                'assertions' => [],
+                'ignored_issues' => ['RiskyTruthyFalsyComparison'],
             ],
             'doubleEmptyCheckOnTKeyedArrayVariableOffsets' => [
                 'code' => '<?php
@@ -340,6 +346,8 @@ class EmptyTest extends TestCase
 
                         if (empty($arr[$i]) && empty($arr[$j])) {}
                     }',
+                'assertions' => [],
+                'ignored_issues' => ['RiskyTruthyFalsyComparison'],
             ],
             'checkArrayEmptyUnknownRoot' => [
                 'code' => '<?php
@@ -626,6 +634,11 @@ class EmptyTest extends TestCase
                     '$x===' => 'true',
                 ],
             ],
+            'emptyArrayFetch' => [
+                'code' => '<?php
+                    /** @var array<true> $a */
+                    if (empty($a["a"])) {}',
+            ],
         ];
     }
 
@@ -758,6 +771,13 @@ class EmptyTest extends TestCase
                     }',
                 'error_message' => 'RedundantConditionGivenDocblockType',
             ],
+            'redundantEmptyArrayFetch' => [
+                'code' => '<?php
+                    /** @var array<true> $a */;
+                    assert(isset($a["a"]));
+                    if (empty($a["a"])) {}',
+                'error_message' => 'DocblockTypeContradiction',
+            ],
         ];
     }
 }
diff --git a/tests/TypeReconciliation/RedundantConditionTest.php b/tests/TypeReconciliation/RedundantConditionTest.php
index 74f06e44e..e54aa2bd3 100644
--- a/tests/TypeReconciliation/RedundantConditionTest.php
+++ b/tests/TypeReconciliation/RedundantConditionTest.php
@@ -575,6 +575,8 @@ class RedundantConditionTest extends TestCase
                             if (empty($a["foo"])) {}
                         }
                     }',
+                'assertions' => [],
+                'ignored_issues' => ['RiskyTruthyFalsyComparison'],
             ],
             'suppressRedundantConditionAfterAssertNonEmpty' => [
                 'code' => '<?php