diff --git a/api/inp_out.py b/api/inp_out.py
index baad20b..25568ca 100644
--- a/api/inp_out.py
+++ b/api/inp_out.py
@@ -12,8 +12,8 @@ from .s7_valves import inp_out_valve
 from .s8_tags import inp_out_tag
 from .s9_demands import inp_out_demand
 from .s10_status import inp_out_status
-from .s11_patterns import inp_out_pattern
-from .s12_curves import inp_out_curve
+from .s11_patterns import inp_out_pattern, inp_out_pattern_v3
+from .s12_curves import inp_out_curve, inp_out_curve_v3
 from .s13_controls import inp_out_control
 from .s14_rules import inp_out_rule
 from .s15_energy import inp_out_energy
@@ -25,6 +25,7 @@ from .s20_mixing import inp_out_mixing
 from .s21_times import inp_out_time
 from .s22_report import inp_out_report
 from .s23_options import inp_out_option
+from .s23_options_v3 import inp_out_option_v3
 from .s24_coordinates import inp_out_coord
 from .s25_vertices import inp_out_vertex
 from .s26_labels import inp_out_label
@@ -87,10 +88,16 @@ def dump_inp(project: str, inp: str, version: str = '3'):
             file.write('\n'.join(inp_out_status(project)))
 
         elif name == PATTERNS:
-            file.write('\n'.join(inp_out_pattern(project)))
+            if version == '3':
+                file.write('\n'.join(inp_out_pattern_v3(project)))
+            else:
+                file.write('\n'.join(inp_out_pattern(project)))
 
         elif name == CURVES:
-            file.write('\n'.join(inp_out_curve(project)))
+            if version == '3':
+                file.write('\n'.join(inp_out_curve_v3(project)))
+            else:
+                file.write('\n'.join(inp_out_curve(project)))
 
         elif name == CONTROLS:
             file.write('\n'.join(inp_out_control(project)))
@@ -123,7 +130,10 @@ def dump_inp(project: str, inp: str, version: str = '3'):
             file.write('\n'.join(inp_out_report(project)))
 
         elif name == OPTIONS:
-            file.write('\n'.join(inp_out_option(project)))
+            if version == '3':
+                file.write('\n'.join(inp_out_option_v3(project)))
+            else:
+                file.write('\n'.join(inp_out_option(project)))
 
         elif name == COORDINATES:
             file.write('\n'.join(inp_out_coord(project)))
@@ -198,10 +208,16 @@ def export_inp(project: str, version: str = '3') -> ChangeSet:
             inp += '\n'.join(inp_out_status(project))
 
         elif name == PATTERNS:
-            inp += '\n'.join(inp_out_pattern(project))
+            if version == '3':
+                inp += '\n'.join(inp_out_pattern_v3(project))
+            else:
+                inp += '\n'.join(inp_out_pattern(project))
 
         elif name == CURVES:
-            inp += '\n'.join(inp_out_curve(project))
+            if version == '3':
+                inp += '\n'.join(inp_out_curve_v3(project))
+            else:
+                inp += '\n'.join(inp_out_curve(project))
 
         elif name == CONTROLS:
             inp += '\n'.join(inp_out_control(project))
@@ -234,7 +250,10 @@ def export_inp(project: str, version: str = '3') -> ChangeSet:
             inp += '\n'.join(inp_out_report(project))
 
         elif name == OPTIONS:
-            inp += '\n'.join(inp_out_option(project))
+            if version == '3':
+                inp += '\n'.join(inp_out_option_v3(project))
+            else:
+                inp += '\n'.join(inp_out_option(project))
 
         elif name == COORDINATES:
             inp += '\n'.join(inp_out_coord(project))