feat(kad): update republish interval and expiration time defaults

Cargo.toml

@@ -85,7 +85,7 @@ libp2p-floodsub = { version = "0.44.0", path = "protocols/floodsub" }
 libp2p-gossipsub = { version = "0.46.1", path = "protocols/gossipsub" }
 libp2p-identify = { version = "0.44.1", path = "protocols/identify" }
 libp2p-identity = { version = "0.2.8" }
-libp2p-kad = { version = "0.45.3", path = "protocols/kad" }
+libp2p-kad = { version = "0.46.0", path = "protocols/kad" }
 libp2p-mdns = { version = "0.45.1", path = "protocols/mdns" }
 libp2p-memory-connection-limits = { version = "0.2.0", path = "misc/memory-connection-limits" }
 libp2p-metrics = { version = "0.14.1", path = "misc/metrics" }

protocols/kad/CHANGELOG.md

@@ -1,3 +1,8 @@
+## 0.46.0 - unreleased
+
+- Update to DHT republish interval and expiration time defaults to 22h and 48h respectively, rationale in [libp2p/specs#451](https://github.com/libp2p/specs/pull/451)
+  See [PR 3230](https://github.com/libp2p/rust-libp2p/pull/3230)
+
 ## 0.45.3
 
 - The progress of the close query iterator shall be decided by ANY of the new peers.
@@ -138,6 +143,8 @@
 
 - Update to `libp2p-swarm` `v0.42.0`.
 
+- Update to DHT republish interval and expiration time defaults to 22h and 48h respectively. (PR #[3230](https://github.com/libp2p/rust-libp2p/pull/3230), rationale in [libp2p/specs#451](https://github.com/libp2p/specs/pull/451))
+
 - Remove lifetime from `RecordStore` and use GATs instead. See [PR 3239].
 
 - Limit number of active outbound streams to 32. See [PR 3287].

protocols/kad/Cargo.toml

@@ -3,7 +3,7 @@ name = "libp2p-kad"
 edition = "2021"
 rust-version = { workspace = true }
 description = "Kademlia protocol for libp2p"
-version = "0.45.3"
+version = "0.46.0"
 authors = ["Parity Technologies <admin@parity.io>"]
 license = "MIT"
 repository = "https://github.com/libp2p/rust-libp2p"

protocols/kad/src/behaviour.rs

@@ -189,12 +189,12 @@ impl Default for Config {
             kbucket_pending_timeout: Duration::from_secs(60),
             query_config: QueryConfig::default(),
             protocol_config: Default::default(),
-            record_ttl: Some(Duration::from_secs(36 * 60 * 60)),
+            record_ttl: Some(Duration::from_secs(48 * 60 * 60)),
             record_replication_interval: Some(Duration::from_secs(60 * 60)),
-            record_publication_interval: Some(Duration::from_secs(24 * 60 * 60)),
+            record_publication_interval: Some(Duration::from_secs(22 * 60 * 60)),
             record_filtering: StoreInserts::Unfiltered,
             provider_publication_interval: Some(Duration::from_secs(12 * 60 * 60)),
-            provider_record_ttl: Some(Duration::from_secs(24 * 60 * 60)),
+            provider_record_ttl: Some(Duration::from_secs(48 * 60 * 60)),
             kbucket_inserts: BucketInserts::OnConnected,
             caching: Caching::Enabled { max_peers: 1 },
         }