:+1: version and update docs

CHANGES.md

@@ -1,6 +1,10 @@
 # CHANGES
 
-## v4.2.9-RC
+## v4.2.10-RC
+
+*
+
+## v4.2.9
 
 * Feature: Comparing revisions
 * Improvement: Memory consumption when re-indexing for full text searching

package.json

@@ -1,6 +1,6 @@
 {
   "name": "growi",
-  "version": "4.2.9-RC",
+  "version": "4.2.10-RC",
   "description": "Team collaboration software using markdown",
   "tags": [
     "wiki",