Update CHANGELOG.md for 12.8.6

[ci skip]

CHANGELOG.md

@@ -2,6 +2,13 @@
 documentation](doc/development/changelog.md) for instructions on adding your own
 entry.
+## 12.8.6 (2020-03-11)
+
+### Security (1 change)
+
+- Do not enable soft email confirmation by default.
+
+
 ## 12.8.5
 ### Fixed (8 changes)

changelogs/unreleased/security-soft-email-confirmation-revert.yml

----
-title: Do not enable soft email confirmation by default
-merge_request:
-author:
-type: security