diff --git a/ansys/api/additive/VERSION b/ansys/api/additive/VERSION
index 59bde44..4b31fc0 100644
--- a/ansys/api/additive/VERSION
+++ b/ansys/api/additive/VERSION
@@ -1 +1 @@
-1.6.0-dev8
\ No newline at end of file
+1.7.0-dev0
\ No newline at end of file
diff --git a/ansys/api/additive/v0/additive_domain.proto b/ansys/api/additive/v0/additive_domain.proto
index 9236103..f0eb2f0 100644
--- a/ansys/api/additive/v0/additive_domain.proto
+++ b/ansys/api/additive/v0/additive_domain.proto
@@ -30,6 +30,7 @@ message MeltPoolTimeStep {
 
 message MeltPool {
     repeated MeltPoolTimeStep time_steps = 1;
+    repeated bytes thermal_history_vtk = 2;
 }
 
 message AdditiveMaterial {