Add more docs.

docs/src/main/asciidoc/spring-cloud-commons.adoc

@@ -1319,6 +1319,8 @@ The per-client configuration properties work for most of the properties, apart f
 
 NOTE: For the properties where maps where already used, where you can specify a different value per-client without using the `clients` keyword (for example, `hints`, `health-check.path`), we have kept that behaviour in order to keep the library backwards compatible. It will be modified in the next major release.
 
+NOTE: Starting with `3.1.7` in `2021.0.x` release train, `4.0.4` in `2022.0.x`  release train and `4.1.0` in the `2023.0.x` release train, we have introduced the `callGetWithRequestOnDelegates` flag in `LoadBalancerProperties`. If this flag is set to `true`, `ServiceInstanceListSupplier#get(Request request)` method will be implemented to call `delegate.get(request)` in classes assignable from `DelegatingServiceInstanceListSupplier` that don't already implement that method, with the exclusion of `CachingServiceInstanceListSupplier` and `HealthCheckServiceInstanceListSupplier`, which should be placed in the instance supplier hierarchy directly after the supplier performing instance retrieval over the network, before any request-based filtering is done. For `3.1.x` and `4.0.x` the flag is set to `false` by default, and since `4.1.0` it's going to be set to `true` by default.
+
 == Spring Cloud Circuit Breaker
 
 include::spring-cloud-circuitbreaker.adoc[leveloffset=+1]