docs: prepare changelog for 2021.4.2

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

website/docs/releases/2021.4.md

@@ -39,6 +39,28 @@ title: Release 2021.4
 
 - You can now specify the amount of processes started in docker-compose using the `WORKERS` environment variable.
 
+
+## Fixed in 2021.4.2
+
+- core: fix propertymapping API returning invalid value for components (https://github.com/BeryJu/authentik/issues/746)
+- core: improve messaging when creating a recovery link for a user when no recovery flow exists
+- flows: annotate flows executor 404 error
+- flows: include configure_flow in stages API
+- helm: make storage class, size and mode configurable
+- helm: turn off monitoring by default (https://github.com/BeryJu/authentik/issues/741)
+- outposts: fix errors when creating multiple outposts
+- root: add restart: unless-stopped to compose
+- root: base Websocket message storage on Base not fallback
+- root: fix healthcheck part in docker-compose
+- root: fix setting of EMAIL_USE_TLS and EMAIL_USE_SSL
+- sources/ldap: improve error handling during sync
+- sources/oauth: fix error when creating an oauth source which has fixed URLs
+- sources/oauth: fix resolution of sources' provider type
+- web: fix background-color on router outlet on light mode
+- web/admin: fix error when user doesn't have permissions to read source
+- web/admin: fix errors in user profile when non-superuser
+
+
 ## Upgrading
 
 This release does not introduce any new requirements.