Merge branch 'master' into jgrpp

# Conflicts:
#	.github/workflows/ci-build.yml
#	.github/workflows/release-linux.yml
#	.github/workflows/release-macos.yml
#	.github/workflows/release-source.yml
#	.github/workflows/release.yml
#	CMakeLists.txt
#	COMPILING.md
#	src/ai/ai_core.cpp
#	src/ai/ai_gui.cpp
#	src/bridge_gui.cpp
#	src/company_gui.cpp
#	src/console_cmds.cpp
#	src/core/CMakeLists.txt
#	src/core/smallmap_type.hpp
#	src/disaster_vehicle.h
#	src/effectvehicle_base.h
#	src/fontcache.cpp
#	src/game/game_core.cpp
#	src/game/game_gui.cpp
#	src/gamelog.cpp
#	src/gamelog_internal.h
#	src/group_gui.cpp
#	src/linkgraph/linkgraph.h
#	src/misc.cpp
#	src/network/core/config.h
#	src/network/core/udp.cpp
#	src/network/network_chat_gui.cpp
#	src/network/network_content_gui.cpp
#	src/network/network_gui.cpp
#	src/newgrf.cpp
#	src/newgrf_gui.cpp
#	src/newgrf_profiling.cpp
#	src/newgrf_profiling.h
#	src/object_gui.cpp
#	src/openttd.cpp
#	src/openttd.h
#	src/order_gui.cpp
#	src/os/windows/font_win32.cpp
#	src/rail_gui.cpp
#	src/road.cpp
#	src/road_gui.cpp
#	src/saveload/afterload.cpp
#	src/saveload/saveload.h
#	src/script/api/script_controller.cpp
#	src/script/api/script_roadtypelist.cpp
#	src/script/script_config.cpp
#	src/script/script_config.hpp
#	src/script/script_instance.cpp
#	src/script/script_scanner.cpp
#	src/script/squirrel.cpp
#	src/script/squirrel_helper.hpp
#	src/settings_gui.cpp
#	src/settings_internal.h
#	src/settings_type.h
#	src/table/settings/network_private_settings.ini
#	src/timetable_gui.cpp
#	src/vehicle.cpp
#	src/vehicle_base.h
#	src/window_gui.h

src/sl/misc_sl.cpp

@@ -31,6 +31,7 @@ extern TileIndex _aux_tileloop_tile;
 extern uint16 _disaster_delay;
 extern byte _trees_tick_ctr;
 extern uint64 _aspect_cfg_hash;
+extern std::string _savegame_id;
 
 /* Keep track of current game position */
 int _saved_scrollpos_x;
@@ -178,9 +179,19 @@ static void SaveLoad_VIEW()
 	SlGlobList(_view_desc);
 }
 
+static const SaveLoad _misc_desc[] = {
+	SLEG_CONDSSTR_X(_savegame_id, 0,                     SL_MIN_VERSION, SL_MAX_VERSION, SlXvFeatureTest(XSLFTO_AND, XSLFI_SAVEGAME_ID)),
+};
+
+static void SaveLoad_MISC()
+{
+	SlGlobList(_misc_desc);
+}
+
 static const ChunkHandler misc_chunk_handlers[] = {
 	{ 'DATE', SaveLoad_DATE, SaveLoad_DATE, nullptr, Check_DATE, CH_RIFF },
 	{ 'VIEW', SaveLoad_VIEW, SaveLoad_VIEW, nullptr, nullptr,    CH_RIFF },
+	{ 'MISC', SaveLoad_MISC, SaveLoad_MISC, nullptr, nullptr,    CH_RIFF },
 };
 
 extern const ChunkHandlerTable _misc_chunk_handlers(misc_chunk_handlers);