diff --git a/tests/bulkwritecommand/bulkwritecommand-ctor-options-combined-001.phpt b/tests/bulkwritecommand/bulkwritecommand-ctor-options-combined-001.phpt
new file mode 100644
index 000000000..9912848b2
--- /dev/null
+++ b/tests/bulkwritecommand/bulkwritecommand-ctor-options-combined-001.phpt
@@ -0,0 +1,60 @@
+--TEST--
+MongoDB\Driver\BulkWriteCommand::__construct() multiple options combined
+--SKIPIF--
+<?php require __DIR__ . "/../utils/basic-skipif.inc"; ?>
+<?php skip_if_not_live(); ?>
+<?php skip_if_server_version('<', '8.0'); ?>
+<?php skip_if_not_clean(); ?>
+--FILE--
+<?php
+
+require_once __DIR__ . "/../utils/basic.inc";
+
+class CommandLogger implements MongoDB\Driver\Monitoring\CommandSubscriber
+{
+    public function commandStarted(MongoDB\Driver\Monitoring\CommandStartedEvent $event): void
+    {
+        if ($event->getCommandName() !== 'bulkWrite') {
+            return;
+        }
+
+        $command = $event->getCommand();
+
+        printf("ordered: %s\n", var_export($command->ordered, true));
+        printf("comment: %s\n", json_encode($command->comment));
+    }
+
+    public function commandSucceeded(MongoDB\Driver\Monitoring\CommandSucceededEvent $event): void
+    {
+    }
+
+    public function commandFailed(MongoDB\Driver\Monitoring\CommandFailedEvent $event): void
+    {
+    }
+}
+
+$manager = create_test_manager();
+
+$bulk = new MongoDB\Driver\BulkWriteCommand([
+    'ordered' => false,
+    'comment' => 'test comment',
+    'verboseResults' => true,
+]);
+$bulk->insertOne(NS, ['_id' => 1]);
+$bulk->insertOne(NS, ['_id' => 2]);
+
+$manager->addSubscriber(new CommandLogger);
+$result = $manager->executeBulkWriteCommand($bulk);
+
+var_dump($result->getInsertedCount());
+var_dump($result->getInsertResults() !== null);
+
+?>
+===DONE===
+<?php exit(0); ?>
+--EXPECT--
+ordered: false
+comment: "test comment"
+int(2)
+bool(true)
+===DONE===
diff --git a/tests/bulkwritecommand/bulkwritecommand-ctor-ordered-002.phpt b/tests/bulkwritecommand/bulkwritecommand-ctor-ordered-002.phpt
index 24ad876d4..bacb0a4d4 100644
--- a/tests/bulkwritecommand/bulkwritecommand-ctor-ordered-002.phpt
+++ b/tests/bulkwritecommand/bulkwritecommand-ctor-ordered-002.phpt
@@ -23,6 +23,7 @@ try {
     printf("%s(%d): %s\n", get_class($e), $e->getCode(), $e->getMessage());
     var_dump($e->getPartialResult());
     var_dump($e->getWriteErrors());
+    var_dump($e->getWriteConcernErrors());
 }
 
 ?>
@@ -64,4 +65,6 @@ array(1) {
     }
   }
 }
+array(0) {
+}
 ===DONE===
diff --git a/tests/command/command-ctor_error-002.phpt b/tests/command/command-ctor_error-002.phpt
new file mode 100644
index 000000000..f133145c5
--- /dev/null
+++ b/tests/command/command-ctor_error-002.phpt
@@ -0,0 +1,18 @@
+--TEST--
+MongoDB\Driver\Command construction (invalid maxAwaitTimeMS range)
+--FILE--
+<?php
+
+require_once __DIR__ . '/../utils/basic.inc';
+
+echo throws(function() {
+    new MongoDB\Driver\Command(['ping' => 1], ['maxAwaitTimeMS' => -1]);
+}, 'MongoDB\Driver\Exception\InvalidArgumentException'), "\n";
+
+?>
+===DONE===
+<?php exit(0); ?>
+--EXPECT--
+OK: Got MongoDB\Driver\Exception\InvalidArgumentException
+Expected "maxAwaitTimeMS" option to be >= 0, -1 given
+===DONE===
diff --git a/tests/exception/connectiontimeoutexception-haserrorlabel-001.phpt b/tests/exception/connectiontimeoutexception-haserrorlabel-001.phpt
new file mode 100644
index 000000000..0da38c822
--- /dev/null
+++ b/tests/exception/connectiontimeoutexception-haserrorlabel-001.phpt
@@ -0,0 +1,22 @@
+--TEST--
+MongoDB\Driver\Exception\ConnectionTimeoutException::hasErrorLabel()
+--FILE--
+<?php
+
+$exception = new MongoDB\Driver\Exception\ConnectionTimeoutException();
+$labels = ['test', 'foo'];
+
+$reflection = new ReflectionClass($exception);
+$errorLabelsProperty = $reflection->getProperty('errorLabels');
+$errorLabelsProperty->setValue($exception, $labels);
+
+var_dump($exception->hasErrorLabel('foo'));
+var_dump($exception->hasErrorLabel('bar'));
+
+?>
+===DONE===
+<?php exit(0); ?>
+--EXPECT--
+bool(true)
+bool(false)
+===DONE===
diff --git a/tests/exception/executiontimeoutexception-haserrorlabel-001.phpt b/tests/exception/executiontimeoutexception-haserrorlabel-001.phpt
new file mode 100644
index 000000000..fd7d93c79
--- /dev/null
+++ b/tests/exception/executiontimeoutexception-haserrorlabel-001.phpt
@@ -0,0 +1,22 @@
+--TEST--
+MongoDB\Driver\Exception\ExecutionTimeoutException::hasErrorLabel()
+--FILE--
+<?php
+
+$exception = new MongoDB\Driver\Exception\ExecutionTimeoutException();
+$labels = ['test', 'foo'];
+
+$reflection = new ReflectionClass($exception);
+$errorLabelsProperty = $reflection->getProperty('errorLabels');
+$errorLabelsProperty->setValue($exception, $labels);
+
+var_dump($exception->hasErrorLabel('foo'));
+var_dump($exception->hasErrorLabel('bar'));
+
+?>
+===DONE===
+<?php exit(0); ?>
+--EXPECT--
+bool(true)
+bool(false)
+===DONE===
diff --git a/tests/query/query-ctor-maxAwaitTimeMS-001.phpt b/tests/query/query-ctor-maxAwaitTimeMS-001.phpt
new file mode 100644
index 000000000..6a4039fb0
--- /dev/null
+++ b/tests/query/query-ctor-maxAwaitTimeMS-001.phpt
@@ -0,0 +1,18 @@
+--TEST--
+MongoDB\Driver\Query construction with maxAwaitTimeMS option
+--FILE--
+<?php
+
+$q = new MongoDB\Driver\Query([], ['maxAwaitTimeMS' => 0]);
+echo "maxAwaitTimeMS=0: OK\n";
+
+$q = new MongoDB\Driver\Query([], ['maxAwaitTimeMS' => 1000]);
+echo "maxAwaitTimeMS=1000: OK\n";
+
+?>
+===DONE===
+<?php exit(0); ?>
+--EXPECT--
+maxAwaitTimeMS=0: OK
+maxAwaitTimeMS=1000: OK
+===DONE===
diff --git a/tests/query/query-ctor-maxAwaitTimeMS-002.phpt b/tests/query/query-ctor-maxAwaitTimeMS-002.phpt
new file mode 100644
index 000000000..427c46eb6
--- /dev/null
+++ b/tests/query/query-ctor-maxAwaitTimeMS-002.phpt
@@ -0,0 +1,16 @@
+--TEST--
+MongoDB\Driver\Query construction with maxAwaitTimeMS option (64-bit)
+--SKIPIF--
+<?php if (8 !== PHP_INT_SIZE) { die('skip Only for 64-bit platform'); } ?>
+--FILE--
+<?php
+
+$q = new MongoDB\Driver\Query([], ['maxAwaitTimeMS' => 4294967295]);
+echo "maxAwaitTimeMS=4294967295: OK\n";
+
+?>
+===DONE===
+<?php exit(0); ?>
+--EXPECT--
+maxAwaitTimeMS=4294967295: OK
+===DONE===
diff --git a/tests/session/session-getServer-001.phpt b/tests/session/session-getServer-001.phpt
new file mode 100644
index 000000000..77c39c6ff
--- /dev/null
+++ b/tests/session/session-getServer-001.phpt
@@ -0,0 +1,23 @@
+--TEST--
+MongoDB\Driver\Session::getServer()
+--SKIPIF--
+<?php require __DIR__ . "/../utils/basic-skipif.inc"; ?>
+<?php skip_if_not_libmongoc_crypto(); ?>
+<?php skip_if_not_live(); ?>
+--FILE--
+<?php
+require_once __DIR__ . "/../utils/basic.inc";
+
+$manager = create_test_manager();
+$session = $manager->startSession();
+
+/* Session::getServer() currently returns null, as sessions are not pinned
+ * to a server. */
+var_dump($session->getServer());
+
+?>
+===DONE===
+<?php exit(0); ?>
+--EXPECT--
+NULL
+===DONE===
diff --git a/tests/session/session-getTransactionOptions-001.phpt b/tests/session/session-getTransactionOptions-001.phpt
index b1ad1d1c8..2a09079d5 100644
--- a/tests/session/session-getTransactionOptions-001.phpt
+++ b/tests/session/session-getTransactionOptions-001.phpt
@@ -19,6 +19,12 @@ $options = [
     ['readConcern' => new \MongoDB\Driver\ReadConcern('majority')],
     ['readPreference' => new \MongoDB\Driver\ReadPreference('primaryPreferred')],
     ['writeConcern' => new \MongoDB\Driver\WriteConcern('majority')],
+    [
+        'maxCommitTimeMS' => 5000,
+        'readConcern' => new \MongoDB\Driver\ReadConcern(\MongoDB\Driver\ReadConcern::MAJORITY),
+        'readPreference' => new \MongoDB\Driver\ReadPreference(\MongoDB\Driver\ReadPreference::PRIMARY),
+        'writeConcern' => new \MongoDB\Driver\WriteConcern(\MongoDB\Driver\WriteConcern::MAJORITY),
+    ],
 ];
 
 foreach ($options as $test) {
@@ -82,4 +88,23 @@ array(2) {
     string(8) "majority"
   }
 }
+array(4) {
+  ["maxCommitTimeMS"]=>
+  int(5000)
+  ["readConcern"]=>
+  object(MongoDB\Driver\ReadConcern)#%d (1) {
+    ["level"]=>
+    string(8) "majority"
+  }
+  ["readPreference"]=>
+  object(MongoDB\Driver\ReadPreference)#%d (1) {
+    ["mode"]=>
+    string(7) "primary"
+  }
+  ["writeConcern"]=>
+  object(MongoDB\Driver\WriteConcern)#%d (1) {
+    ["w"]=>
+    string(8) "majority"
+  }
+}
 ===DONE===