Add 1.8.9 to release notes (#2969)

* Added 1.8.8

* Updated patch.

* WIP edits.

* Updated to 1.8.9

* Bumped up to 1.8.9.

* edits

* add updated blurb to enterprise rns

* Added comment that 1.8.8 wil not be released.

* update releasedate link

Co-authored-by: kelseiv <47797004+kelseiv@users.noreply.github.com>
Co-authored-by: Kelly <kelly@influxdata.com>

content/enterprise_influxdb/v1.8/about-the-project/release-notes-changelog.md

@@ -9,6 +9,15 @@ menu:
     parent: About the project
 ---
 
+## v1.8.9 [2021-08-06]
+The InfluxDB Enterprise 1.8.9 release builds on the InfluxDB OSS 1.8.9 release.
+For details on changes incorporated from the InfluxDB OSS release, see
+[InfluxDB OSS release notes](/influxdb/v1.8/about_the_project/releasenotes-changelog/#v189-2021-08-05) (v1.8.8 was unreleased).
+
+## v1.8.8 [unreleased]
+
+Due to encountering several issues building v.1.8.8, this version will not be released.  
+
 ## v1.8.7 [2021-07-21]
 The InfluxDB Enterprise 1.8.7 release builds on the InfluxDB OSS 1.8.7 release.
 For details on changes incorporated from the InfluxDB OSS release, see

content/influxdb/v1.8/about_the_project/releasenotes-changelog.md

@@ -9,6 +9,20 @@ menu:
 v2: /influxdb/v2.0/reference/release-notes/influxdb/
 ---
 
+## v1.8.9 [2021-08-05]
+
+### Bug fixes 
+
+- Prevent silently dropped writes when there are overlapping shards.
+- Resolve `influxd restore -portable` backup bug.
+- Ensure systemd-startup script is executable by group and others.
+- Handle https in systemd wrapper, and prevent it from looping forever.
+- Log error instead of panic when restoring a backup to InfluxDB Enterprise cluster using InfluxDB OSS. 
+
+## v1.8.8 [unreleased]
+
+Due to encountering several issues building v.1.8.8, this version will not be released.  
+
 ## v1.8.7 [2021-07-21]
 
 ### Bug fixes

data/products.yml

@@ -8,7 +8,7 @@ influxdb:
   latest_override: v2.0
   latest_patches:
     "2.0": 7
-    "1.8": 7
+    "1.8": 9
     "1.7": 11
     "1.6": 6
     "1.5": 5