adding fix from #4843 manually

app/src/processing/app/contrib/Contribution.java

@@ -367,6 +367,27 @@ abstract public class Contribution {
   // . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 
 
+  @Override
+  public boolean equals(Object o) {
+    if (this == o) return true;
+
+    if (o instanceof Contribution) {
+      Contribution that = (Contribution) o;
+      return name.toLowerCase().equals(that.name.toLowerCase());
+    }
+    return false;
+  }
+
+
+  @Override
+  public int hashCode() {
+    return name.toLowerCase().hashCode();
+  }
+
+
+  // . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
+
+
   public interface Filter {
     boolean matches(Contribution contrib);
   }

core/todo.txt

@@ -51,6 +51,10 @@ X   https://github.com/processing/processing/pull/4797
 X Fix typo in GLSL preprocessor
 X   https://github.com/processing/processing/issues/4810
 X   https://github.com/processing/processing/pull/4816
+X Keep Windows timer resolution high for OpenGL sketches
+X   prevents frame rate in OpenGL hovering around 30 instead of 60
+X   https://github.com/processing/processing/pull/4847
+X   https://github.com/processing/processing/issues/4846
 
 
 _ no prompt shows with selectInput() on 10.11 and 10.12

todo.txt

@@ -25,6 +25,7 @@ _   https://github.com/processing/processing/issues/3933
 _   this may be fixed (removed invokeLater() on startup), unconfirmed
 _ "error during export" message, but no error message contents come through
 _   e.g. https://github.com/processing/processing/issues/4792
+_ 'run sketches on display' message shows up on clean install
 
 _ Mode, requiring update, appears in Updates tab but not in Modes tab
 _   https://github.com/processing/processing/issues/4822
@@ -75,6 +76,12 @@ X   https://github.com/processing/processing/issues/3965
 X   https://github.com/processing/processing/pull/4762
 X Report missing brace in correct tab, suppress other errors until fixed
 X   https://github.com/processing/processing/pull/4777
+X Improvements to sketch launching and stopping
+X   https://github.com/processing/processing/pull/4848
+X several Contribution Manager fixes
+X   https://github.com/processing/processing/pull/4844
+X Add missing equals() and hashCode() to Contribution
+X   
 
 
 _ did we lose settings.path because it was too buggy?