Update documentation to mention Java 17+ baseline

Closes gh-29514

framework-docs/src/docs/asciidoc/overview.adoc

@@ -8,10 +8,8 @@ include::attributes.adoc[]
 Spring makes it easy to create Java enterprise applications. It provides everything you
 need to embrace the Java language in an enterprise environment, with support for Groovy
 and Kotlin as alternative languages on the JVM, and with the flexibility to create many
-kinds of architectures depending on an application's needs. As of Spring Framework 5.1,
-Spring requires JDK 8+ (Java SE 8+) and provides out-of-the-box support for JDK 11 LTS.
-Java SE 8 update 60 is suggested as the minimum patch release for Java 8, but it is
-generally recommended to use a recent patch release.
+kinds of architectures depending on an application's needs. As of Spring Framework 6.0,
+Spring requires Java 17+.
 
 Spring supports a wide range of application scenarios. In a large enterprise, applications
 often exist for a long time and have to run on a JDK and application server whose upgrade