Updating the index page

Author: ViktarStarastsenka

content/develop/feature-sets/_index.md

@@ -0,0 +1,22 @@
+---
+title: Redis versions
+alwaysopen: false
+categories:
+- docs
+- operate
+- rs
+- rc
+description: Highlights of what's new for Redis versions
+linkTitle: Redis versions
+weight: 10
+---
+
+A Redis version represents the complete set of features available in a specific Redis version.
+
+The following Redis versions are supported and maintained:
+
+- Redis version [7.4]({{< relref "/develop/redis-versions/7-4" >}})
+- Redis version [7.2]({{< relref "/develop/redis-versions/7-2" >}})
+- Redis version [6.2]({{< relref "/develop/redis-versions/6-2" >}})
+
+To use a new feature introduced in a later Redis version, you must upgrade the corresponding components included in that Redis version.