diff --git a/Cargo.lock b/Cargo.lock
index 7bca17d4f..e08f3a8da 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -39,7 +39,7 @@ dependencies = [
 
 [[package]]
 name = "aether-acp-utils"
-version = "0.5.13"
+version = "0.5.14"
 dependencies = [
  "aether-acp-utils",
  "aether-llm",
@@ -62,7 +62,7 @@ dependencies = [
 
 [[package]]
 name = "aether-agent-cli"
-version = "0.9.15"
+version = "0.9.16"
 dependencies = [
  "aether-acp-utils",
  "aether-agent-cli",
@@ -107,7 +107,7 @@ dependencies = [
 
 [[package]]
 name = "aether-agent-core"
-version = "0.9.4"
+version = "0.9.5"
 dependencies = [
  "aether-agent-core",
  "aether-auth",
@@ -142,7 +142,7 @@ dependencies = [
 
 [[package]]
 name = "aether-auth"
-version = "0.1.17"
+version = "0.1.18"
 dependencies = [
  "age",
  "apple-native-keyring-store",
@@ -199,7 +199,7 @@ dependencies = [
 
 [[package]]
 name = "aether-evals"
-version = "0.3.20"
+version = "0.3.21"
 dependencies = [
  "aether-agent-core",
  "aether-llm",
@@ -217,7 +217,7 @@ dependencies = [
 
 [[package]]
 name = "aether-llm"
-version = "0.9.13"
+version = "0.9.14"
 dependencies = [
  "aether-auth",
  "aether-doctest",
@@ -296,7 +296,7 @@ dependencies = [
 
 [[package]]
 name = "aether-mcp-servers"
-version = "0.8.4"
+version = "0.8.5"
 dependencies = [
  "aether-agent-core",
  "aether-auth",
@@ -331,7 +331,7 @@ dependencies = [
 
 [[package]]
 name = "aether-mcp-utils"
-version = "0.7.13"
+version = "0.7.14"
 dependencies = [
  "aether-auth",
  "async-stream",
@@ -355,7 +355,7 @@ dependencies = [
 
 [[package]]
 name = "aether-project"
-version = "0.5.58"
+version = "0.5.59"
 dependencies = [
  "aether-agent-core",
  "aether-doctest",
@@ -375,7 +375,7 @@ dependencies = [
 
 [[package]]
 name = "aether-schemas"
-version = "0.2.20"
+version = "0.2.21"
 dependencies = [
  "aether-agent-cli",
  "aether-agent-core",
@@ -398,7 +398,7 @@ dependencies = [
 
 [[package]]
 name = "aether-sessions"
-version = "0.3.13"
+version = "0.3.14"
 dependencies = [
  "aether-acp-utils",
  "aether-agent-core",
@@ -418,7 +418,7 @@ dependencies = [
 
 [[package]]
 name = "aether-telemetry"
-version = "0.3.13"
+version = "0.3.14"
 dependencies = [
  "aether-agent-core",
  "aether-llm",
@@ -460,7 +460,7 @@ dependencies = [
 
 [[package]]
 name = "aether-wisp"
-version = "0.7.14"
+version = "0.7.15"
 dependencies = [
  "aether-acp-utils",
  "aether-utils",
diff --git a/Cargo.toml b/Cargo.toml
index 0c12c9912..ed077d810 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -13,7 +13,7 @@ pub_underscore_fields = "allow"
 absolute_paths = "warn"
 
 [workspace.dependencies]
-aether-sessions = { path = "crates/aether-sessions", version = "0.3.13" }
+aether-sessions = { path = "crates/aether-sessions", version = "0.3.14" }
 
 # AWS SDK
 aws-config = { version = "1.8.18", features = ["behavior-version-latest"] }
diff --git a/crates/acp-utils/CHANGELOG.md b/crates/acp-utils/CHANGELOG.md
index 4a59cb1b5..10dbde974 100644
--- a/crates/acp-utils/CHANGELOG.md
+++ b/crates/acp-utils/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 All notable changes to this project will be documented in this file.
 
+## [0.5.14](https://github.com/contextbridge/aether/compare/aether-acp-utils-v0.5.13...aether-acp-utils-v0.5.14) - 2026-10-12
+
+### Other
+
+- updated the following local packages: aether-llm
+
 ## [0.5.13](https://github.com/contextbridge/aether/compare/aether-acp-utils-v0.5.12...aether-acp-utils-v0.5.13) - 2026-10-10
 
 ### Other
diff --git a/crates/acp-utils/Cargo.toml b/crates/acp-utils/Cargo.toml
index 876fd750b..b03b3674c 100644
--- a/crates/acp-utils/Cargo.toml
+++ b/crates/acp-utils/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "aether-acp-utils"
-version = "0.5.13"
+version = "0.5.14"
 edition = "2024"
 description = "Agent Client Protocol (ACP) utilities for the Aether AI agent framework"
 license = "MIT"
@@ -48,7 +48,7 @@ thiserror = { workspace = true }
 tokio-tungstenite = { workspace = true, optional = true }
 
 [target.'cfg(not(target_family = "wasm"))'.dependencies]
-llm = { package = "aether-llm", path = "../llm", version = "0.9.13" }
+llm = { package = "aether-llm", path = "../llm", version = "0.9.14" }
 rmcp = { workspace = true, features = ["client", "elicitation"] }
 
 [target.'cfg(target_family = "wasm")'.dependencies]
diff --git a/crates/aether-auth/CHANGELOG.md b/crates/aether-auth/CHANGELOG.md
index 9d4300c2a..adf1b3487 100644
--- a/crates/aether-auth/CHANGELOG.md
+++ b/crates/aether-auth/CHANGELOG.md
@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.1.18](https://github.com/contextbridge/aether/compare/aether-auth-v0.1.17...aether-auth-v0.1.18) - 2026-10-12
+
+### Added
+
+- Support sigv4 auth mechanism for MCP servers. ([#597](https://github.com/contextbridge/aether/pull/597))
+
 ## [0.1.17](https://github.com/contextbridge/aether/compare/aether-auth-v0.1.16...aether-auth-v0.1.17) - 2026-10-08
 
 ### Other
diff --git a/crates/aether-auth/Cargo.toml b/crates/aether-auth/Cargo.toml
index abe61a51a..3bad09513 100644
--- a/crates/aether-auth/Cargo.toml
+++ b/crates/aether-auth/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "aether-auth"
-version = "0.1.17"
+version = "0.1.18"
 edition = "2024"
 description = "OAuth credential storage, authorization flows and AWS SigV4 signing for the Aether AI agent framework"
 license = "MIT"
diff --git a/crates/aether-cli/CHANGELOG.md b/crates/aether-cli/CHANGELOG.md
index 1123515ab..68846b77f 100644
--- a/crates/aether-cli/CHANGELOG.md
+++ b/crates/aether-cli/CHANGELOG.md
@@ -4,6 +4,16 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased]
 
+## [0.9.16](https://github.com/contextbridge/aether/compare/aether-agent-cli-v0.9.15...aether-agent-cli-v0.9.16) - 2026-10-12
+
+### Added
+
+- Support sigv4 auth mechanism for MCP servers. ([#597](https://github.com/contextbridge/aether/pull/597))
+
+### Other
+
+- Simplify MCP code around Client, Server and Gateway concepts  ([#595](https://github.com/contextbridge/aether/pull/595))
+
 ## [0.9.15](https://github.com/contextbridge/aether/compare/aether-agent-cli-v0.9.14...aether-agent-cli-v0.9.15) - 2026-10-10
 
 ### Fixed
diff --git a/crates/aether-cli/Cargo.toml b/crates/aether-cli/Cargo.toml
index 7df0ccb4d..5a55fb6b2 100644
--- a/crates/aether-cli/Cargo.toml
+++ b/crates/aether-cli/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "aether-agent-cli"
-version = "0.9.15"
+version = "0.9.16"
 edition = "2024"
 description = "CLI and ACP server for the Aether AI coding agent"
 license = "MIT"
@@ -32,18 +32,18 @@ path = "src/main.rs"
 testing = ["acp_utils/testing", "mcp_utils/testing", "aether-core/testing"]
 
 [dependencies]
-aether-auth = { path = "../aether-auth", version = "0.1.17", features = ["keyring"] }
+aether-auth = { path = "../aether-auth", version = "0.1.18", features = ["keyring"] }
 base64 = { workspace = true }
-aether-core = { package = "aether-agent-core", path = "../aether-core", version = "0.9.4" }
+aether-core = { package = "aether-agent-core", path = "../aether-core", version = "0.9.5" }
 aether-sessions = { workspace = true }
-aether-project = { path = "../aether-project", version = "0.5.58" }
-aether-telemetry = { path = "../aether-telemetry", version = "0.3.13" }
-llm = { package = "aether-llm", path = "../llm", features = ["bedrock", "codex"], version = "0.9.13" }
-mcp_utils = { package = "aether-mcp-utils", path = "../mcp-utils", version = "0.7.13" }
-mcp-servers = { package = "aether-mcp-servers", path = "../mcp-servers", features = ["subagents"], version = "0.8.4" }
-wisp = { package = "aether-wisp", path = "../wisp", version = "0.7.14" }
+aether-project = { path = "../aether-project", version = "0.5.59" }
+aether-telemetry = { path = "../aether-telemetry", version = "0.3.14" }
+llm = { package = "aether-llm", path = "../llm", features = ["bedrock", "codex"], version = "0.9.14" }
+mcp_utils = { package = "aether-mcp-utils", path = "../mcp-utils", version = "0.7.14" }
+mcp-servers = { package = "aether-mcp-servers", path = "../mcp-servers", features = ["subagents"], version = "0.8.5" }
+wisp = { package = "aether-wisp", path = "../wisp", version = "0.7.15" }
 ratatui = { workspace = true }
-acp_utils = { package = "aether-acp-utils", path = "../acp-utils", features = ["websocket"], version = "0.5.13" }
+acp_utils = { package = "aether-acp-utils", path = "../acp-utils", features = ["websocket"], version = "0.5.14" }
 agent-client-protocol = { workspace = true }
 clankerdiff-core = { workspace = true }
 clankerdiff-protocol = { workspace = true }
@@ -76,4 +76,4 @@ libc = { workspace = true }
 [dev-dependencies]
 aether-agent-cli = { path = ".", features = ["testing"] }
 tokio = { workspace = true, features = ["test-util"] }
-acp_utils = { package = "aether-acp-utils", path = "../acp-utils", features = ["testing"], version = "0.5.13" }
+acp_utils = { package = "aether-acp-utils", path = "../acp-utils", features = ["testing"], version = "0.5.14" }
diff --git a/crates/aether-core/CHANGELOG.md b/crates/aether-core/CHANGELOG.md
index cfb692480..7cebf0ec0 100644
--- a/crates/aether-core/CHANGELOG.md
+++ b/crates/aether-core/CHANGELOG.md
@@ -4,6 +4,16 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased]
 
+## [0.9.5](https://github.com/contextbridge/aether/compare/aether-agent-core-v0.9.4...aether-agent-core-v0.9.5) - 2026-10-12
+
+### Added
+
+- Support sigv4 auth mechanism for MCP servers. ([#597](https://github.com/contextbridge/aether/pull/597))
+
+### Other
+
+- Simplify MCP code around Client, Server and Gateway concepts  ([#595](https://github.com/contextbridge/aether/pull/595))
+
 ## [0.9.4](https://github.com/contextbridge/aether/compare/aether-agent-core-v0.9.3...aether-agent-core-v0.9.4) - 2026-10-10
 
 ### Other
diff --git a/crates/aether-core/Cargo.toml b/crates/aether-core/Cargo.toml
index a1745a6c2..5d24aeb88 100644
--- a/crates/aether-core/Cargo.toml
+++ b/crates/aether-core/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "aether-agent-core"
-version = "0.9.4"
+version = "0.9.5"
 edition = "2024"
 description = "A minimal Rust library for building AI agents with MCP tool integration"
 license = "MIT"
@@ -40,9 +40,9 @@ tracing = { workspace = true }
 thiserror = { workspace = true }
 glob = { workspace = true }
 http = { workspace = true }
-aether-auth = { path = "../aether-auth", version = "0.1.17", features = ["sigv4"] }
-mcp_utils = { package = "aether-mcp-utils", path = "../mcp-utils", version = "0.7.13" }
-llm = { package = "aether-llm", path = "../llm", version = "0.9.13", features = ["codex"] }
+aether-auth = { path = "../aether-auth", version = "0.1.18", features = ["sigv4"] }
+mcp_utils = { package = "aether-mcp-utils", path = "../mcp-utils", version = "0.7.14" }
+llm = { package = "aether-llm", path = "../llm", version = "0.9.14", features = ["codex"] }
 utils = { package = "aether-utils", path = "../utils", version = "0.2.19" }
 uuid = { workspace = true }
 tempfile = { workspace = true, optional = true }
diff --git a/crates/aether-evals/CHANGELOG.md b/crates/aether-evals/CHANGELOG.md
index 0ea578422..c19335486 100644
--- a/crates/aether-evals/CHANGELOG.md
+++ b/crates/aether-evals/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 All notable changes to this project will be documented in this file.
 
+## [0.3.21](https://github.com/contextbridge/aether/compare/aether-evals-v0.3.20...aether-evals-v0.3.21) - 2026-10-12
+
+### Other
+
+- updated the following local packages: aether-llm, aether-agent-core
+
 ## [0.3.20](https://github.com/contextbridge/aether/compare/aether-evals-v0.3.19...aether-evals-v0.3.20) - 2026-10-10
 
 ### Other
diff --git a/crates/aether-evals/Cargo.toml b/crates/aether-evals/Cargo.toml
index d1d9525b4..28df644ec 100644
--- a/crates/aether-evals/Cargo.toml
+++ b/crates/aether-evals/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "aether-evals"
-version = "0.3.20"
+version = "0.3.21"
 edition = "2024"
 description = "Dockerized eval harness for Aether AI agents"
 license = "MIT"
@@ -25,8 +25,8 @@ schemars = { workspace = true }
 thiserror = { workspace = true }
 tracing = { workspace = true }
 tempfile = { workspace = true }
-aether-core = { package = "aether-agent-core", path = "../aether-core", version = "0.9.4" }
-llm = { package = "aether-llm", path = "../llm", version = "0.9.13" }
+aether-core = { package = "aether-agent-core", path = "../aether-core", version = "0.9.5" }
+llm = { package = "aether-llm", path = "../llm", version = "0.9.14" }
 testcontainers = { workspace = true }
 
 [lib]
diff --git a/crates/aether-project/CHANGELOG.md b/crates/aether-project/CHANGELOG.md
index c8aab4024..34030c739 100644
--- a/crates/aether-project/CHANGELOG.md
+++ b/crates/aether-project/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 All notable changes to this project will be documented in this file.
 
+## [0.5.59](https://github.com/contextbridge/aether/compare/aether-project-v0.5.58...aether-project-v0.5.59) - 2026-10-12
+
+### Other
+
+- Simplify MCP code around Client, Server and Gateway concepts  ([#595](https://github.com/contextbridge/aether/pull/595))
+
 ## [0.5.58](https://github.com/contextbridge/aether/compare/aether-project-v0.5.57...aether-project-v0.5.58) - 2026-10-10
 
 ### Other
diff --git a/crates/aether-project/Cargo.toml b/crates/aether-project/Cargo.toml
index f781ad23f..f9c167b24 100644
--- a/crates/aether-project/Cargo.toml
+++ b/crates/aether-project/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "aether-project"
-version = "0.5.58"
+version = "0.5.59"
 edition = "2024"
 description = "Project-local settings and agent discovery for the Aether AI agent framework"
 license = "MIT"
@@ -20,8 +20,8 @@ rustdoc-args = ["--cfg", "docsrs"]
 workspace = true
 
 [dependencies]
-aether-core = { package = "aether-agent-core", path = "../aether-core", version = "0.9.4" }
-llm = { package = "aether-llm", path = "../llm", version = "0.9.13" }
+aether-core = { package = "aether-agent-core", path = "../aether-core", version = "0.9.5" }
+llm = { package = "aether-llm", path = "../llm", version = "0.9.14" }
 utils = { package = "aether-utils", path = "../utils", version = "0.2.19" }
 schemars = { workspace = true }
 serde = { workspace = true }
diff --git a/crates/aether-schemas/CHANGELOG.md b/crates/aether-schemas/CHANGELOG.md
index 9e006056b..6e1ec6ba1 100644
--- a/crates/aether-schemas/CHANGELOG.md
+++ b/crates/aether-schemas/CHANGELOG.md
@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.2.21](https://github.com/contextbridge/aether/compare/aether-schemas-v0.2.20...aether-schemas-v0.2.21) - 2026-10-12
+
+### Other
+
+- updated the following local packages: aether-llm, aether-agent-core, aether-project, aether-agent-cli, aether-evals
+
 ## [0.2.20](https://github.com/contextbridge/aether/compare/aether-schemas-v0.2.19...aether-schemas-v0.2.20) - 2026-10-10
 
 ### Other
diff --git a/crates/aether-schemas/Cargo.toml b/crates/aether-schemas/Cargo.toml
index ac889f60b..6fc77aa5f 100644
--- a/crates/aether-schemas/Cargo.toml
+++ b/crates/aether-schemas/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "aether-schemas"
-version = "0.2.20"
+version = "0.2.21"
 edition = "2024"
 description = "Schema generation utilities for Aether SDK codegen"
 license = "MIT"
@@ -15,9 +15,9 @@ dist = false
 workspace = true
 
 [dependencies]
-aether-cli = { package = "aether-agent-cli", path = "../aether-cli", version = "0.9.15" }
-aether-core = { package = "aether-agent-core", path = "../aether-core", version = "0.9.4" }
-aether-evals = { path = "../aether-evals", version = "0.3.20" }
-aether-project = { path = "../aether-project", version = "0.5.58" }
-llm = { package = "aether-llm", path = "../llm", version = "0.9.13" }
+aether-cli = { package = "aether-agent-cli", path = "../aether-cli", version = "0.9.16" }
+aether-core = { package = "aether-agent-core", path = "../aether-core", version = "0.9.5" }
+aether-evals = { path = "../aether-evals", version = "0.3.21" }
+aether-project = { path = "../aether-project", version = "0.5.59" }
+llm = { package = "aether-llm", path = "../llm", version = "0.9.14" }
 utils = { package = "aether-utils", path = "../utils", version = "0.2.19" }
diff --git a/crates/aether-sessions/CHANGELOG.md b/crates/aether-sessions/CHANGELOG.md
index 2166b36f3..a2290e840 100644
--- a/crates/aether-sessions/CHANGELOG.md
+++ b/crates/aether-sessions/CHANGELOG.md
@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.3.14](https://github.com/contextbridge/aether/compare/aether-sessions-v0.3.13...aether-sessions-v0.3.14) - 2026-10-12
+
+### Other
+
+- Simplify MCP code around Client, Server and Gateway concepts  ([#595](https://github.com/contextbridge/aether/pull/595))
+
 ## [0.3.13](https://github.com/contextbridge/aether/compare/aether-sessions-v0.3.12...aether-sessions-v0.3.13) - 2026-10-10
 
 ### Other
diff --git a/crates/aether-sessions/Cargo.toml b/crates/aether-sessions/Cargo.toml
index dc38a7b56..edbff3956 100644
--- a/crates/aether-sessions/Cargo.toml
+++ b/crates/aether-sessions/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "aether-sessions"
-version = "0.3.13"
+version = "0.3.14"
 edition = "2024"
 description = "Persisted session logs and transcript reconstruction for Aether"
 license = "MIT"
@@ -18,9 +18,9 @@ analytics = ["dep:chrono", "dep:futures", "dep:sqlx", "dep:tokio"]
 testing = ["dep:tempfile"]
 
 [dependencies]
-acp_utils = { package = "aether-acp-utils", path = "../acp-utils", default-features = false, version = "0.5.13" }
-aether-core = { package = "aether-agent-core", path = "../aether-core", version = "0.9.4" }
-llm = { package = "aether-llm", path = "../llm", version = "0.9.13" }
+acp_utils = { package = "aether-acp-utils", path = "../acp-utils", default-features = false, version = "0.5.14" }
+aether-core = { package = "aether-agent-core", path = "../aether-core", version = "0.9.5" }
+llm = { package = "aether-llm", path = "../llm", version = "0.9.14" }
 chrono = { workspace = true, optional = true }
 futures = { workspace = true, optional = true }
 serde = { workspace = true }
diff --git a/crates/aether-telemetry/CHANGELOG.md b/crates/aether-telemetry/CHANGELOG.md
index f8ac13efa..552b6004e 100644
--- a/crates/aether-telemetry/CHANGELOG.md
+++ b/crates/aether-telemetry/CHANGELOG.md
@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.3.14](https://github.com/contextbridge/aether/compare/aether-telemetry-v0.3.13...aether-telemetry-v0.3.14) - 2026-10-12
+
+### Other
+
+- updated the following local packages: aether-llm, aether-agent-core
+
 ## [0.3.13](https://github.com/contextbridge/aether/compare/aether-telemetry-v0.3.12...aether-telemetry-v0.3.13) - 2026-10-10
 
 ### Other
diff --git a/crates/aether-telemetry/Cargo.toml b/crates/aether-telemetry/Cargo.toml
index d70d160c9..6c4c9452d 100644
--- a/crates/aether-telemetry/Cargo.toml
+++ b/crates/aether-telemetry/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "aether-telemetry"
-version = "0.3.13"
+version = "0.3.14"
 edition = "2024"
 description = "OpenTelemetry support for Aether GenAI calls"
 license = "MIT"
@@ -13,8 +13,8 @@ dist = false
 workspace = true
 
 [dependencies]
-aether-core = { package = "aether-agent-core", path = "../aether-core", version = "0.9.4" }
-llm = { package = "aether-llm", path = "../llm", version = "0.9.13" }
+aether-core = { package = "aether-agent-core", path = "../aether-core", version = "0.9.5" }
+llm = { package = "aether-llm", path = "../llm", version = "0.9.14" }
 opentelemetry = { version = "0.33.0", default-features = false, features = ["trace", "metrics"] }
 opentelemetry_sdk = { version = "0.33.0", default-features = false, features = ["trace", "metrics", "rt-tokio", "experimental_trace_batch_span_processor_with_async_runtime", "experimental_metrics_periodicreader_with_async_runtime"] }
 opentelemetry-otlp = { version = "0.33.0", default-features = false, features = ["trace", "metrics", "http-proto", "reqwest-client"] }
@@ -30,7 +30,7 @@ sha2 = { workspace = true }
 base16ct = { workspace = true }
 
 [dev-dependencies]
-aether-core = { package = "aether-agent-core", path = "../aether-core", version = "0.9.4", features = ["testing"] }
+aether-core = { package = "aether-agent-core", path = "../aether-core", version = "0.9.5", features = ["testing"] }
 axum = { workspace = true }
 opentelemetry-proto = { version = "0.33.0", default-features = false, features = ["gen-tonic-messages", "trace", "metrics"] }
 opentelemetry_sdk = { version = "0.33.0", default-features = false, features = ["trace", "metrics", "rt-tokio", "testing"] }
diff --git a/crates/llm/CHANGELOG.md b/crates/llm/CHANGELOG.md
index 6354ff08b..015f1e25d 100644
--- a/crates/llm/CHANGELOG.md
+++ b/crates/llm/CHANGELOG.md
@@ -2,6 +2,16 @@
 
 All notable changes to this project will be documented in this file.
 
+## [0.9.14](https://github.com/contextbridge/aether/compare/aether-llm-v0.9.13...aether-llm-v0.9.14) - 2026-10-12
+
+### Added
+
+- Support sigv4 auth mechanism for MCP servers. ([#597](https://github.com/contextbridge/aether/pull/597))
+
+### Other
+
+- Update models ([#594](https://github.com/contextbridge/aether/pull/594))
+
 ## [0.9.13](https://github.com/contextbridge/aether/compare/aether-llm-v0.9.12...aether-llm-v0.9.13) - 2026-10-10
 
 ### Fixed
diff --git a/crates/llm/Cargo.toml b/crates/llm/Cargo.toml
index 68ccec2a6..e00ec58d2 100644
--- a/crates/llm/Cargo.toml
+++ b/crates/llm/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "aether-llm"
-version = "0.9.13"
+version = "0.9.14"
 edition = "2024"
 description = "Multi-provider LLM abstraction layer for the Aether AI agent framework"
 license = "MIT"
@@ -67,7 +67,7 @@ tracing = { workspace = true }
 utils = { package = "aether-utils", path = "../utils", version = "0.2.19" }
 
 # Codex deps
-aether-auth = { path = "../aether-auth", version = "0.1.17", optional = true }
+aether-auth = { path = "../aether-auth", version = "0.1.18", optional = true }
 oauth2 = { workspace = true, optional = true }
 url = { workspace = true, optional = true }
 
diff --git a/crates/mcp-servers/CHANGELOG.md b/crates/mcp-servers/CHANGELOG.md
index 2470706c7..ea42784fb 100644
--- a/crates/mcp-servers/CHANGELOG.md
+++ b/crates/mcp-servers/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 All notable changes to this project will be documented in this file.
 
+## [0.8.5](https://github.com/contextbridge/aether/compare/aether-mcp-servers-v0.8.4...aether-mcp-servers-v0.8.5) - 2026-10-12
+
+### Other
+
+- Simplify MCP code around Client, Server and Gateway concepts  ([#595](https://github.com/contextbridge/aether/pull/595))
+
 ## [0.8.4](https://github.com/contextbridge/aether/compare/aether-mcp-servers-v0.8.3...aether-mcp-servers-v0.8.4) - 2026-10-10
 
 ### Other
diff --git a/crates/mcp-servers/Cargo.toml b/crates/mcp-servers/Cargo.toml
index 52fce6f1a..54ee9249b 100644
--- a/crates/mcp-servers/Cargo.toml
+++ b/crates/mcp-servers/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "aether-mcp-servers"
-version = "0.8.4"
+version = "0.8.5"
 edition = "2024"
 description = "Built-in MCP tool servers for the Aether AI agent framework"
 license = "MIT"
@@ -69,7 +69,7 @@ rmcp = { workspace = true, features = ["elicitation", "macros", "server"] }
 schemars = { workspace = true }
 clap = { workspace = true, features = ["env"] }
 thiserror = { workspace = true }
-mcp_utils = { package = "aether-mcp-utils", path = "../mcp-utils", default-features = false, version = "0.7.13" }
+mcp_utils = { package = "aether-mcp-utils", path = "../mcp-utils", default-features = false, version = "0.7.14" }
 utils = { package = "aether-utils", path = "../utils", version = "0.2.19" }
 aether-lspd = { path = "../aether-lspd", optional = true, version = "0.3.3" }
 futures = { workspace = true, optional = true }
@@ -89,10 +89,10 @@ tower-http = { workspace = true, optional = true, features = ["fs"] }
 tempfile = { workspace = true, optional = true }
 
 # subagents feature
-aether-auth = { path = "../aether-auth", optional = true, version = "0.1.17", features = ["keyring"] }
-aether-core = { package = "aether-agent-core", path = "../aether-core", optional = true, version = "0.9.4" }
-aether-project = { path = "../aether-project", optional = true, version = "0.5.58" }
-llm = { package = "aether-llm", path = "../llm", optional = true, version = "0.9.13" }
+aether-auth = { path = "../aether-auth", optional = true, version = "0.1.18", features = ["keyring"] }
+aether-core = { package = "aether-agent-core", path = "../aether-core", optional = true, version = "0.9.5" }
+aether-project = { path = "../aether-project", optional = true, version = "0.5.59" }
+llm = { package = "aether-llm", path = "../llm", optional = true, version = "0.9.14" }
 
 [dev-dependencies]
 tempfile = { workspace = true }
@@ -101,8 +101,8 @@ reqwest = { workspace = true }
 tokio = { workspace = true, features = ["test-util"] }
 aether-lspd = { path = "../aether-lspd", features = ["testing"], version = "0.3.3" }
 mcp-servers = { package = "aether-mcp-servers", path = ".", features = ["test-helpers"] }
-mcp_utils = { package = "aether-mcp-utils", path = "../mcp-utils", features = ["testing"], version = "0.7.13" }
-aether-core = { package = "aether-agent-core", path = "../aether-core", features = ["testing"], version = "0.9.4" }
+mcp_utils = { package = "aether-mcp-utils", path = "../mcp-utils", features = ["testing"], version = "0.7.14" }
+aether-core = { package = "aether-agent-core", path = "../aether-core", features = ["testing"], version = "0.9.5" }
 
 [[bin]]
 name = "mcp-servers-stdio"
diff --git a/crates/mcp-utils/CHANGELOG.md b/crates/mcp-utils/CHANGELOG.md
index 2b77bfdf9..7f166d0a8 100644
--- a/crates/mcp-utils/CHANGELOG.md
+++ b/crates/mcp-utils/CHANGELOG.md
@@ -2,6 +2,16 @@
 
 All notable changes to this project will be documented in this file.
 
+## [0.7.14](https://github.com/contextbridge/aether/compare/aether-mcp-utils-v0.7.13...aether-mcp-utils-v0.7.14) - 2026-10-12
+
+### Added
+
+- Support sigv4 auth mechanism for MCP servers. ([#597](https://github.com/contextbridge/aether/pull/597))
+
+### Other
+
+- Simplify MCP code around Client, Server and Gateway concepts  ([#595](https://github.com/contextbridge/aether/pull/595))
+
 ## [0.7.13](https://github.com/contextbridge/aether/compare/aether-mcp-utils-v0.7.12...aether-mcp-utils-v0.7.13) - 2026-10-10
 
 ### Other
diff --git a/crates/mcp-utils/Cargo.toml b/crates/mcp-utils/Cargo.toml
index 51c6a8df8..f24c2db25 100644
--- a/crates/mcp-utils/Cargo.toml
+++ b/crates/mcp-utils/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "aether-mcp-utils"
-version = "0.7.13"
+version = "0.7.14"
 edition = "2024"
 description = "MCP client and server utilities for the Aether AI agent framework"
 license = "MIT"
@@ -52,7 +52,7 @@ uuid = { workspace = true }
 
 # client-only deps
 axum = { workspace = true, optional = true }
-aether-auth = { path = "../aether-auth", version = "0.1.17", optional = true }
+aether-auth = { path = "../aether-auth", version = "0.1.18", optional = true }
 async-stream = { workspace = true, optional = true }
 chrono = { workspace = true, optional = true }
 reqwest = { workspace = true, optional = true }
diff --git a/crates/wisp/CHANGELOG.md b/crates/wisp/CHANGELOG.md
index 7c595c13a..2a948fdec 100644
--- a/crates/wisp/CHANGELOG.md
+++ b/crates/wisp/CHANGELOG.md
@@ -2,6 +2,12 @@
 
 All notable changes to this project will be documented in this file.
 
+## [0.7.15](https://github.com/contextbridge/aether/compare/aether-wisp-v0.7.14...aether-wisp-v0.7.15) - 2026-10-12
+
+### Other
+
+- updated the following local packages: aether-acp-utils
+
 ## [0.7.14](https://github.com/contextbridge/aether/compare/aether-wisp-v0.7.13...aether-wisp-v0.7.14) - 2026-10-10
 
 ### Other
diff --git a/crates/wisp/Cargo.toml b/crates/wisp/Cargo.toml
index f410cf74d..6927a3419 100644
--- a/crates/wisp/Cargo.toml
+++ b/crates/wisp/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "aether-wisp"
-version = "0.7.14"
+version = "0.7.15"
 edition = "2024"
 description = "A terminal UI for AI coding agents via the Agent Client Protocol (ACP)"
 license = "MIT"
@@ -50,7 +50,7 @@ clankerdiff-core = { workspace = true }
 clankerdiff-ratatui = { workspace = true }
 clankerdiff-client = { workspace = true }
 utils = { package = "aether-utils", path = "../utils", version = "0.2.19" }
-acp_utils = { package = "aether-acp-utils", path = "../acp-utils", features = ["client"], version = "0.5.13" }
+acp_utils = { package = "aether-acp-utils", path = "../acp-utils", features = ["client"], version = "0.5.14" }
 agent-client-protocol = { workspace = true }
 ratatui = { workspace = true }
 crossterm = { workspace = true }
@@ -71,7 +71,7 @@ url = { workspace = true }
 unicode-width = { workspace = true }
 
 [dev-dependencies]
-acp_utils = { package = "aether-acp-utils", path = "../acp-utils", features = ["client", "testing"], version = "0.5.13" }
+acp_utils = { package = "aether-acp-utils", path = "../acp-utils", features = ["client", "testing"], version = "0.5.14" }
 clankerdiff-git = { workspace = true }
 serde_json = { workspace = true }
 tempfile = { workspace = true }