diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1a4dcd72..683269aa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,20 @@ All notable changes to this project will be documented in this file.
 
 This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## \[[0.4.0-dev.4](https://github.com/holochain/kitsune2/compare/v0.4.0-dev.3...v0.4.0-dev.4)\] - 2026-03-10
+
+### Features
+
+- Gossip approximate DHT size and expose `dht_op_count` on `PeerMeta` as well as `local_op_count` on `GossipStateSummary` by @lucksus in [#469](https://github.com/holochain/kitsune2/pull/469)
+- Integrate iroh transport with relay authentication by @ThetaSinner in [#470](https://github.com/holochain/kitsune2/pull/470)
+
+### Automated Changes
+
+- *(deps)* Bump docker/metadata-action from 5 to 6 by @dependabot[bot] in [#473](https://github.com/holochain/kitsune2/pull/473)
+- *(deps)* Bump docker/build-push-action from 6 to 7 by @dependabot[bot] in [#472](https://github.com/holochain/kitsune2/pull/472)
+- *(deps)* Bump docker/login-action from 3 to 4 by @dependabot[bot] in [#471](https://github.com/holochain/kitsune2/pull/471)
+- *(deps)* Bump holochain/actions/.github/workflows/changelog-preview-comment.yml by @dependabot[bot] in [#468](https://github.com/holochain/kitsune2/pull/468)
+
 ## \[[0.4.0-dev.3](https://github.com/holochain/kitsune2/compare/v0.4.0-dev.2...v0.4.0-dev.3)\] - 2026-03-02
 
 ### Features
diff --git a/Cargo.lock b/Cargo.lock
index c69d00c5..8e865160 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2544,7 +2544,7 @@ dependencies = [
 
 [[package]]
 name = "kitsune2"
-version = "0.4.0-dev.3"
+version = "0.4.0-dev.4"
 dependencies = [
  "bytes",
  "jsonschema",
@@ -2564,7 +2564,7 @@ dependencies = [
 
 [[package]]
 name = "kitsune2_api"
-version = "0.4.0-dev.3"
+version = "0.4.0-dev.4"
 dependencies = [
  "base64",
  "bytes",
@@ -2583,7 +2583,7 @@ dependencies = [
 
 [[package]]
 name = "kitsune2_bootstrap_client"
-version = "0.4.0-dev.3"
+version = "0.4.0-dev.4"
 dependencies = [
  "axum",
  "axum-server",
@@ -2603,7 +2603,7 @@ dependencies = [
 
 [[package]]
 name = "kitsune2_bootstrap_srv"
-version = "0.4.0-dev.3"
+version = "0.4.0-dev.4"
 dependencies = [
  "async-channel",
  "axum",
@@ -2639,7 +2639,7 @@ dependencies = [
 
 [[package]]
 name = "kitsune2_core"
-version = "0.4.0-dev.3"
+version = "0.4.0-dev.4"
 dependencies = [
  "bytes",
  "ed25519-dalek 2.2.0",
@@ -2660,7 +2660,7 @@ dependencies = [
 
 [[package]]
 name = "kitsune2_dht"
-version = "0.4.0-dev.3"
+version = "0.4.0-dev.4"
 dependencies = [
  "bytes",
  "kitsune2_api",
@@ -2674,7 +2674,7 @@ dependencies = [
 
 [[package]]
 name = "kitsune2_gossip"
-version = "0.4.0-dev.3"
+version = "0.4.0-dev.4"
 dependencies = [
  "base64",
  "bytes",
@@ -2696,7 +2696,7 @@ dependencies = [
 
 [[package]]
 name = "kitsune2_showcase"
-version = "0.4.0-dev.3"
+version = "0.4.0-dev.4"
 dependencies = [
  "bytes",
  "chrono",
@@ -2720,7 +2720,7 @@ dependencies = [
 
 [[package]]
 name = "kitsune2_test_utils"
-version = "0.4.0-dev.3"
+version = "0.4.0-dev.4"
 dependencies = [
  "axum",
  "bytes",
@@ -2736,7 +2736,7 @@ dependencies = [
 
 [[package]]
 name = "kitsune2_transport_iroh"
-version = "0.4.0-dev.3"
+version = "0.4.0-dev.4"
 dependencies = [
  "bytes",
  "iroh",
@@ -2757,7 +2757,7 @@ dependencies = [
 
 [[package]]
 name = "kitsune2_transport_tx5"
-version = "0.4.0-dev.3"
+version = "0.4.0-dev.4"
 dependencies = [
  "base64",
  "bytes",
@@ -5523,7 +5523,7 @@ dependencies = [
 
 [[package]]
 name = "tool_proto_build"
-version = "0.4.0-dev.3"
+version = "0.4.0-dev.4"
 dependencies = [
  "prost-build",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 00aa8832..6678fab5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,7 +17,7 @@ members = [
 resolver = "2"
 
 [workspace.package]
-version = "0.4.0-dev.3"
+version = "0.4.0-dev.4"
 authors = ["Holochain Core Dev Team <devcore@holochain.org>"]
 homepage = "https://www.holochain.org/"
 repository = "https://github.com/holochain/kitsune2"