1.20 release notes (#201)

* 1.20 release notes

* Changes from review

Author: zach-carr

source/release-notes.txt

@@ -10,6 +10,52 @@ Release Notes
    :depth: 1
    :class: twocols
 
+|compass| 1.20
+--------------
+
+*Released November, 2019*
+
+- New and improved :ref:`Connection <connect-run-compass>` experience
+  with support for all connection options.
+
+- Improved user experience for saving and sharing 
+  :ref:`Favorite Connections <favorite-connections>`.
+
+- Added JSON mode for managing documents. With JSON mode, you can
+  now insert multiple documents at once.
+
+- Added support for querying UUIDs via the 
+  :ref:`Documents <documents-tab>` query bar or in the
+  :ref:`Aggregation Pipeline Builder <compass-agg-builder>`.
+
+- Added support for the following aggregation pipeline operators:
+
+  - :manual:`$set </reference/operator/aggregation/set/>`
+
+  - :manual:`$unset </reference/operator/aggregation/unset/>`
+
+  - :manual:`$replaceWith </manual/reference/operator/aggregation/replaceWith/>`
+
+- Improved inline documentation for aggregation pipeline arguments.
+
+- Removed :manual:`$limit </reference/operator/aggregation/limit/>`
+  ahead of the 
+  :manual:`$count </reference/operator/aggregation/count/>` stage in 
+  the aggregation pipeline builder to ensure accurate counts on large 
+  collections. Prior versions of |compass| placed a ``$limit`` stage 
+  before ``$count`` stages in the 
+  :ref:`Aggregation Pipeline Builder <compass-agg-builder>` for large 
+  collections, even when sample mode was disabled.
+
+- Various bug fixes and improvements.
+
+.. note::
+
+   When you update |compass| to version 1.20, you will need to allow 
+   access to your system storage for each item in :guilabel:`Recents` 
+   and :guilabel:`Favorites`. This should be the last update that 
+   requires you to enter your keychain password.
+
 |compass| 1.19
 --------------