what's new for 24.3 GA

modules/get-started/pages/whats-new.adoc

@@ -45,6 +45,14 @@ This release includes several updates to xref:get-started:licensing/overview.ado
 
 - *Unified license management in Redpanda Console*: You can now upload and apply a single license key for both Redpanda Console and the connected Redpanda cluster through the Redpanda Console UI. Any existing license key is overridden by the new one.
 
+== Backfill partitions
+
+When running xref:manage:cluster-maintenance/nodewise-partition-recovery.adoc[node-wise partition recovery], it's possible that there may be more recent data (a higher offset) available in Tiered Storage. Redpanda attempts to recover partition data from object storage, recovering the latest offset available for a partition in either storage tier (local or object storage). This allows for the maximum amount of data to be recovered in all cases, even for topics with a replication factor of 1, where no replicas remain in local storage.
+
+== Configure access to object storage with a KMS key
+
+Users on AWS or GCP with strict data compliance requirements can manage and store encryption keys separately from their cloud provider with a xref:manage:tiered-storage.adoc#configure-object-storage[customer-managed Key Management Service (KMS) key].
+
 == New commands
 
 The following `rpk` commands are new in this version: