Added note about MongoDB - #324

ankane · ankane · commit 7e0bc9488a42 · 2021-05-05T19:06:13.000-07:00
diff --git a/README.md b/README.md
@@ -735,6 +735,8 @@ Supports [InfluxQL](https://docs.influxdata.com/influxdb/v1.8/query_language/exp
 
 ### MongoDB
 
+*Requires MongoDB < 4.2 at the moment*
+
 Add [mongo](https://github.com/mongodb/mongo-ruby-driver) to your Gemfile and set:
 
 ```yml
