docs: Added version notice for time range variables

2019-01-30 16:54:09 +01:00
parent b32c3a9d84
commit 3ad48ff7e5
1 changed files with 1 additions and 1 deletions
@@ -248,7 +248,7 @@ Grafana has global built-in variables that can be used in expressions in the que
 ### Time range variables

 Grafana has two built in time range variables in `$__from` and `$__to`. They are currently always interpolated
-as epoch milliseconds.
+as epoch milliseconds. These variables are only available in Grafana v6.0 and above.

 ### The $__interval Variable