notes

notes/0.13.9/cached-resolution-fix.markdown

@@ -0,0 +1,26 @@
+  [@cunei]: https://github.com/cunei
+  [@eed3si9n]: https://github.com/eed3si9n
+  [@gkossakowski]: https://github.com/gkossakowski
+  [@jsuereth]: https://github.com/jsuereth
+
+  [1721]: https://github.com/sbt/sbt/issues/1721
+  [2030]: https://github.com/sbt/sbt/pull/2030
+
+### Fixes with compatibility implications
+
+### Improvements
+
+### Bug fixes
+
+- Fixes memory/performance issue with cached resolution. See below. 
+
+### Cached resolution fixes
+
+On a larger dependency graph, the JSON file growing to be 100MB+
+with 97% of taken up by *caller* information.
+The caller information is not useful once the graph is successfully resolved.
+sbt 0.13.9 creates a single caller to represent all callers,
+which fixes `OutOfMemoryException` seen on some builds,
+and generally it should make JSON IO faster.
+
+[#2030][2030]/[#1721][1721] by [@eed3si9n][@eed3si9n]