Add changelog (#2270)

Author: sebastienblor

CHANGELOG.md

@@ -1,7 +1,13 @@
 <!-- SPDX-License-Identifier: Apache-2.0 -->
 # Changelog
 
-## Next Feature release
+## Next Bugfix release
+
+### Bug fixes
+
+- [usd#2269](https://github.com/Autodesk/arnold-usd/issues/2269) - Connections are not processed correctly during hydra procedural updates
+
+## [7.4.1.0] - 2025-03-26
 
 ### Features
 
@@ -24,7 +30,7 @@
 - [usd#2239](https://github.com/Autodesk/arnold-usd/issues/2239) - OpenVDB asset with explicit fieldName does not render in hydra
 - [usd#1402](https://github.com/Autodesk/arnold-usd/issues/1402) - Incorrect transform when exporting parented objects to USD
 
-## Pending Feature release
+## [7.4.0.0] - 2025-03-26
 
 ### Bug fixes
 - [usd#2201](https://github.com/Autodesk/arnold-usd/issues/2201) - Hydra procedural should not modify the input usd stage with shutter range

libs/render_delegate/reader.cpp

@@ -263,7 +263,6 @@ void HydraArnoldReader::ReadStage(UsdStageRefPtr stage,
     // root.push_back(SdfPath("/"));
     // collection.SetRootPaths(root);
     _renderIndex->SyncAll(&_tasks, &_taskContext);
-
     arnoldRenderDelegate->ProcessConnections();
 
     // We want to render the purpose that this reader was assigned to.
@@ -279,6 +278,7 @@ void HydraArnoldReader::ReadStage(UsdStageRefPtr stage,
     // HasPendingChanges updates the dirtybits for a resync, this is how it works in our hydra render pass.
     while (arnoldRenderDelegate->HasPendingChanges(_renderIndex, _shutter)) {
         _renderIndex->SyncAll(&_tasks, &_taskContext);
+        arnoldRenderDelegate->ProcessConnections();
     }
 
 #ifndef ENABLE_SHARED_ARRAYS
@@ -327,7 +327,7 @@ void HydraArnoldReader::Update()
     arnoldRenderDelegate->HasPendingChanges(_renderIndex, _shutter);
     _renderIndex->SyncAll(&_tasks, &_taskContext);
     // Connections may have been made as part of the sync pass, so we need to process them
-    // again to make sure that the nodes are up to date. (ARNOLD-16217)
+    // again to make sure that the nodes are up to date. (#2269)
     arnoldRenderDelegate->ProcessConnections();
 }