DOCSP-41580 creates release notes for 1.8.0 (#352)

* DOCSP-41580 creates release notes for 1.8.0

* Responds to draft comments

* Updates embedded verifier text and adds versions bugs were introduced

* Removes embedded verifier. See #339 for embedded verifier release notes

* Remove embedded verifier title

* Updates release notes from sme feedback

Author: jwilson-mdb

source/release-notes/1.8.txt

@@ -21,9 +21,58 @@ Release Notes for mongosync 1.8
 
 **Upcoming**
 
-New Features:
+Updates to ``mongosync`` ``/progress`` API endpoint
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+- Returns a top-level boolean ``success`` field.
+
+- Returns a new ``totalEventsApplied`` field.
+
+- Reports per-partition progress tracking
+
+See the :ref:`c2c-api-progress` documentation for more details.
+
+Other Notes
+~~~~~~~~~~~
+
+Optimizations:
+
+- Fixes and enhancements to significantly reduce the time needed to create 
+  partitions and adds logging that tracks the partition creation process.
+
+Other Changes:
+
+- ``mongosync`` now performs a round robin assignment of the primary 
+  shard for each database if the destination is a sharded cluster.
+
+- ``mongosync`` now errors if it cannot create an index after 10 
+  attempts. Previously, the system would attempt to create an index 
+  indefinitely.
+
+- ``mongosync`` now sends hostnames as telemetry.
+
+- Improved performance of the initialization process by eliminating 
+  the creation of unnecessary dummy indexes. ``mongosync`` now creates 
+  dummy indexes for sharded collections only if the destination 
+  cluster does not have an index to support the shard key.
+
+Issues Fixed:
+
+- Fixed a bug introduced in v1.0.0 that caused ``mongosync`` to fall 
+  off the source cluster's oplog if no writes occurred on the source 
+  cluster for an extended period of time.
+
+- Fixed a bug introduced in v1.0.0 that caused ``mongosync`` to write 
+  certain logs to a location outside of the specified log directory.
+
+- Fixed a bug introduced in v1.0.0 that caused the ``mongosync`` 
+  ``/progress`` endpoint to potentially return incorrect 
+  ``totalBytes`` for sharded clusters.
 
 
 Minimum Supported Version
 -------------------------
 
+In 1.8.0, the minimum supported versions of MongoDB are 6.0.16 and 7.0.9.
+
+.. include:: /includes/migration-upgrade-recommendation.rst