--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/relnotes/5.6 Mon Nov 02 14:39:43 2020 -0500
@@ -0,0 +1,44 @@
+== New Features ==
+
+ * `hg mv -A` can now be used with `--at-rev`. It behaves just like
+ `hg cp -A --at-rev`, i.e. it marks the destination as a copy of the
+ source whether or not the source still exists (but the source must
+ exist in the parent revision).
+
+ * New revset predicate `diffcontains(pattern)` for filtering revisions
+ in the same way as `hg grep --diff pattern`.
+
+ * The memory footprint per changeset and per file during pull/unbundle
+ operations has been significantly reduced.
+
+
+== New Experimental Features ==
+
+
+
+== Bug Fixes ==
+
+
+
+== Backwards Compatibility Changes ==
+
+
+
+== Internal API Changes ==
+
+ * `merge.update()` is now private (renamed to `_update()`). Hopefully
+ the higher-level functions available in the same module cover your
+ use cases.
+
+ * `phases.registernew` now takes a set of revisions instead of a list
+ of nodes. `phases.advanceboundary` takes an optional set of revisions
+ in addition to the list of nodes. The corresponeding members of the
+ `phasecache` class follow this change.
+
+ * The `addgroup` member of `revlog` classes no longer keeps a list of
+ all found nodes. It now returns True iff a node was found in the group.
+ An optional callback for duplicated nodes can be used by callers to keep
+ track of all nodes themselve.
+
+ * The `_chaininfocache` of `revlog` classes has been changed from a dict
+ to a LRU cache.