Documentation: Annotate --logger flag

This commit annotates the `--logger` flag to let users know that it is not available in versions 3.3.x or later.
2018-09-15 18:51:53 -05:00 · 2018-09-15 18:51:53 -05:00 · 952a4365ce
parent 001bbb97cc
commit 952a4365ce
1 changed files with 3 additions and 0 deletions
--- a/Documentation/op-guide/configuration.md
+++ b/Documentation/op-guide/configuration.md
@ -313,6 +313,9 @@ The security flags help to [build a secure etcd cluster][security].
 ## Logging flags

 ### --logger
+
+**Available from v3.4**
+
 + Specify 'zap' for structured logging or 'capnslog'.
 + default: capnslog
 + env variable: ETCD_LOGGER