website/docs: prepare 2021.9.3

Signed-off-by: Jens Langhammer <jens.langhammer@beryju.org>

website/docs/releases/v2021.9.md

@@ -113,6 +113,27 @@ slug: "2021.9"
 - web: fix import order of polyfills causing shadydom to not work on firefox and safari
 - web/user: enable sentry
 
+## Fixed in 2021.9.3
+
+- core: fix api return code for user self-update
+- events: add additional validation for event transport
+- outposts: ensure service is always re-created with mismatching ports
+- outposts: fix outposts not correctly updating central state
+- outposts: make AUTHENTIK_HOST_BROWSER configurable from central config
+- outposts/proxy: ensure cookies only last as long as tokens
+- outposts/proxy: Fix failing traefik healthcheck (#1470)
+- outposts/proxyv2: fix routing not working correctly for domain auth
+- providers/proxy: add token_validity field for outpost configuration
+- web/admin: add notice for recovery
+- web/admin: fix NotificationWebhookMapping not loading correctly
+- web/admin: fix Transport Form not loading mode correctly on edit
+- web/admin: handle error correctly when creating user recovery link
+- web/elements: fix token copy error in safari
+- web/elements: improve error handling on forms
+- web/user: fix brand not being shown in safari
+- web/user: search apps when user typed before apps have loaded
+- website/docs: fix typos and grammar (#1459)
+
 ## Upgrading
 
 This release does not introduce any new requirements.