diff --git a/content/cn/docs/config/config-option.md b/content/cn/docs/config/config-option.md
index e8b03cef72..2a23334891 100644
--- a/content/cn/docs/config/config-option.md
+++ b/content/cn/docs/config/config-option.md
@@ -134,6 +134,8 @@ HStore 后端还会从图配置文件 `{graph-name}.properties` 中读取以下
 | pd.peers                              | 127.0.0.1:8686                               | The addresses of pd nodes, separated with commas. Only used by the hstore backend.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
 | schema.illegal_name_regex             | .*\s+$|~.*                              | The regex specified the illegal format for schema name.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
 | schema.cache_capacity                 | 10000                                        | The max cache size(items) of schema cache.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
+| schema.sync.enabled                   | true                                         | Whether to write a per-graph schema version to PD on every schema change and check it periodically, so that a schema change made through another server clears this server's schema cache. Only for the hstore backend. Set false to keep the previous behavior: no version writes, no checks. The convergence bound holds only when every server of the graph runs a release with these options, with schema.sync.enabled=true, schema.sync.reconcile_interval above 0 and PD reachable. Older servers write no version for schema updates, so after a rolling upgrade make one schema change, or restart the servers, to reload every server's schema cache. |
+| schema.sync.reconcile_interval        | 10                                           | The interval in seconds to check the schema version of a graph in PD. A schema change made through another server is visible on this server within about this interval. 0 means never check: the version is still written for other servers, and a failed write is retried by the next schema change.                                                                                                                                                                                                                                                            |
 | schema.init_template                  |                                              | The template schema used to init graph.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
 | schema.index_rebuild_using_pushdown   | true                                         | Whether to use pushdown when to create/rebuild index.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
 | vertex.cache_type                     | l2                                           | The type of vertex cache, allowed values are [l1, l2].                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
diff --git a/content/en/docs/config/config-option.md b/content/en/docs/config/config-option.md
index fa43f13e53..36fba23eaa 100644
--- a/content/en/docs/config/config-option.md
+++ b/content/en/docs/config/config-option.md
@@ -135,6 +135,8 @@ Basic Config Options and Backend Config Options correspond to configuration file
 | pd.peers                              | 127.0.0.1:8686                               | The addresses of pd nodes, separated with commas. Only used by the hstore backend.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
 | schema.illegal_name_regex             | .*\s+$|~.*                              | The regex specified the illegal format for schema name.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
 | schema.cache_capacity                 | 10000                                        | The max cache size(items) of schema cache.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
+| schema.sync.enabled                   | true                                         | Whether to write a per-graph schema version to PD on every schema change and check it periodically, so that a schema change made through another server clears this server's schema cache. Only for the hstore backend. Set false to keep the previous behavior: no version writes, no checks. The convergence bound holds only when every server of the graph runs a release with these options, with schema.sync.enabled=true, schema.sync.reconcile_interval above 0 and PD reachable. Older servers write no version for schema updates, so after a rolling upgrade make one schema change, or restart the servers, to reload every server's schema cache. |
+| schema.sync.reconcile_interval        | 10                                           | The interval in seconds to check the schema version of a graph in PD. A schema change made through another server is visible on this server within about this interval. 0 means never check: the version is still written for other servers, and a failed write is retried by the next schema change.                                                                                                                                                                                                                                                            |
 | schema.init_template                  |                                              | The template schema used to init graph.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
 | schema.index_rebuild_using_pushdown   | true                                         | Whether to use pushdown when to create/rebuild index.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
 | vertex.cache_type                     | l2                                           | The type of vertex cache, allowed values are [l1, l2].                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |