7 files changed, 26 insertions, 14 deletions
diff --git a/core/config/project_settings.cpp b/core/config/project_settings.cpp
index c872ae2162..02effc2001 100644
--- a/core/config/project_settings.cpp
+++ b/core/config/project_settings.cpp
@@ -909,7 +909,7 @@ Error ProjectSettings::save_custom(const String &p_path, const CustomMap &p_cust
 		custom_features += f;
 	}
 
-	if (p_path.ends_with(".godot")) {
+	if (p_path.ends_with(".godot") || p_path.ends_with("override.cfg")) {
 		return _save_settings_text(p_path, props, p_custom, custom_features);
 	} else if (p_path.ends_with(".binary")) {
 		return _save_settings_binary(p_path, props, p_custom, custom_features);
diff --git a/core/core_bind.cpp b/core/core_bind.cpp
index 47c75cfa28..e7a77384da 100644
--- a/core/core_bind.cpp
+++ b/core/core_bind.cpp
@@ -566,7 +566,7 @@ struct _OSCoreBindImg {
 
 void _OS::print_all_textures_by_size() {
 	List<_OSCoreBindImg> imgs;
-	int total = 0;
+	uint64_t total = 0;
 	{
 		List<Ref<Resource>> rsrc;
 		ResourceCache::get_cached_resources(&rsrc);
diff --git a/core/debugger/remote_debugger.cpp b/core/debugger/remote_debugger.cpp
index 7392e6b9a6..bdbb7766fa 100644
--- a/core/debugger/remote_debugger.cpp
+++ b/core/debugger/remote_debugger.cpp
@@ -76,6 +76,7 @@ public:
 	NetworkProfiler() {}
 
 	int bandwidth_usage(const Vector<BandwidthFrame> &p_buffer, int p_pointer) {
+		ERR_FAIL_COND_V(p_buffer.size() == 0, 0);
 		int total_bandwidth = 0;
 
 		uint32_t timestamp = OS::get_singleton()->get_ticks_msec();
diff --git a/core/io/http_client.cpp b/core/io/http_client.cpp
index 18afdc678e..3863dce0f6 100644
--- a/core/io/http_client.cpp
+++ b/core/io/http_client.cpp
@@ -96,6 +96,11 @@ Error HTTPClient::connect_to_host(const String &p_host, int p_port, bool p_ssl,
 void HTTPClient::set_connection(const Ref<StreamPeer> &p_connection) {
 	ERR_FAIL_COND_MSG(p_connection.is_null(), "Connection is not a reference to a valid StreamPeer object.");
 
+	if (ssl) {
+		ERR_FAIL_NULL_MSG(Object::cast_to<StreamPeerSSL>(p_connection.ptr()),
+				"Connection is not a reference to a valid StreamPeerSSL object.");
+	}
+
 	if (connection == p_connection) {
 		return;
 	}
diff --git a/core/os/thread.cpp b/core/os/thread.cpp
index aea370787d..f1fcfdf7e1 100644
--- a/core/os/thread.cpp
+++ b/core/os/thread.cpp
@@ -41,9 +41,13 @@ void (*Thread::set_priority_func)(Thread::Priority) = nullptr;
 void (*Thread::init_func)() = nullptr;
 void (*Thread::term_func)() = nullptr;
 
-Thread::ID Thread::main_thread_id = 1;
-SafeNumeric<Thread::ID> Thread::last_thread_id{ 1 };
-thread_local Thread::ID Thread::caller_id = 1;
+uint64_t Thread::_thread_id_hash(const std::thread::id &p_t) {
+	static std::hash<std::thread::id> hasher;
+	return hasher(p_t);
+}
+
+Thread::ID Thread::main_thread_id = _thread_id_hash(std::this_thread::get_id());
+thread_local Thread::ID Thread::caller_id = _thread_id_hash(std::this_thread::get_id());
 
 void Thread::_set_platform_funcs(
 		Error (*p_set_name_func)(const String &),
@@ -57,7 +61,7 @@ void Thread::_set_platform_funcs(
 }
 
 void Thread::callback(Thread *p_self, const Settings &p_settings, Callback p_callback, void *p_userdata) {
-	Thread::caller_id = p_self->id;
+	Thread::caller_id = _thread_id_hash(p_self->thread.get_id());
 	if (set_priority_func) {
 		set_priority_func(p_settings.priority);
 	}
@@ -73,7 +77,7 @@ void Thread::callback(Thread *p_self, const Settings &p_settings, Callback p_cal
 }
 
 void Thread::start(Thread::Callback p_callback, void *p_user, const Settings &p_settings) {
-	if (id != 0) {
+	if (id != _thread_id_hash(std::thread::id())) {
 #ifdef DEBUG_ENABLED
 		WARN_PRINT("A Thread object has been re-started without wait_to_finish() having been called on it. Please do so to ensure correct cleanup of the thread.");
 #endif
@@ -81,22 +85,22 @@ void Thread::start(Thread::Callback p_callback, void *p_user, const Settings &p_
 		std::thread empty_thread;
 		thread.swap(empty_thread);
 	}
-	id = last_thread_id.increment();
 	std::thread new_thread(&Thread::callback, this, p_settings, p_callback, p_user);
 	thread.swap(new_thread);
+	id = _thread_id_hash(thread.get_id());
 }
 
 bool Thread::is_started() const {
-	return id != 0;
+	return id != _thread_id_hash(std::thread::id());
 }
 
 void Thread::wait_to_finish() {
-	if (id != 0) {
+	if (id != _thread_id_hash(std::thread::id())) {
 		ERR_FAIL_COND_MSG(id == get_caller_id(), "A Thread can't wait for itself to finish.");
 		thread.join();
 		std::thread empty_thread;
 		thread.swap(empty_thread);
-		id = 0;
+		id = _thread_id_hash(std::thread::id());
 	}
 }
 
@@ -109,7 +113,7 @@ Error Thread::set_name(const String &p_name) {
 }
 
 Thread::~Thread() {
-	if (id != 0) {
+	if (id != _thread_id_hash(std::thread::id())) {
 #ifdef DEBUG_ENABLED
 		WARN_PRINT("A Thread object has been destroyed without wait_to_finish() having been called on it. Please do so to ensure correct cleanup of the thread.");
 #endif
diff --git a/core/os/thread.h b/core/os/thread.h
index 76f5be182e..599585051f 100644
--- a/core/os/thread.h
+++ b/core/os/thread.h
@@ -62,9 +62,10 @@ private:
 	friend class Main;
 
 	static ID main_thread_id;
-	static SafeNumeric<Thread::ID> last_thread_id;
 
-	ID id = 0;
+	static uint64_t _thread_id_hash(const std::thread::id &p_t);
+
+	ID id = _thread_id_hash(std::thread::id());
 	static thread_local ID caller_id;
 	std::thread thread;
 
diff --git a/core/variant/variant_construct.cpp b/core/variant/variant_construct.cpp
index 52f9f6060e..f0c9e52b46 100644
--- a/core/variant/variant_construct.cpp
+++ b/core/variant/variant_construct.cpp
@@ -773,6 +773,7 @@ void Variant::_unregister_variant_constructors() {
 }
 
 void Variant::construct(Variant::Type p_type, Variant &base, const Variant **p_args, int p_argcount, Callable::CallError &r_error) {
+	ERR_FAIL_INDEX(p_type, Variant::VARIANT_MAX);
 	uint32_t s = construct_data[p_type].size();
 	for (uint32_t i = 0; i < s; i++) {
 		int argc = construct_data[p_type][i].argument_count;