Update _index.md (#3032)

5 years ago · 72b4c0181a
parent a3ae2f08f9
commit 72b4c0181a
1 changed files with 2 additions and 0 deletions
--- a/docs/sources/configuration/_index.md
+++ b/docs/sources/configuration/_index.md
@ -66,6 +66,8 @@ non-list parameters the value is set to the specified default.

 ### Use environment variables in the configuration

+> **Note:** This feature is only available in Loki 2.1+.
+
 You can use environment variable references in the configuration file to set values that need to be configurable during deployment.
 To do this, use: