diff --git a/Cargo.lock b/Cargo.lock
index 54b34e7..c1e59ab 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -79,7 +79,7 @@ dependencies = [
 
 [[package]]
 name = "aptos-sdk"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "anyhow",
  "aptos-bcs",
@@ -115,7 +115,7 @@ dependencies = [
 
 [[package]]
 name = "aptos-sdk-macros"
-version = "0.1.0"
+version = "0.2.0"
 dependencies = [
  "aptos-sdk",
  "proc-macro2",
diff --git a/Cargo.toml b/Cargo.toml
index 908940c..5c1eeec 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -29,8 +29,8 @@ rust-version = "1.90.0"
 [workspace.dependencies]
 # Internal crate dependencies.
 # Please do not add any test features here: they should be declared by the individual crate.
-aptos-sdk = { path = "crates/aptos-sdk" }
-aptos-sdk-macros = { version = "0.1.0", path = "crates/aptos-sdk-macros" }
+aptos-sdk = { version = "0.4.0", path = "crates/aptos-sdk" }
+aptos-sdk-macros = { version = "0.2.0", path = "crates/aptos-sdk-macros" }
 
 # External crate dependencies.
 # Please do not add any test features here: they should be declared by the individual crate.
diff --git a/crates/aptos-sdk-macros/CHANGELOG.md b/crates/aptos-sdk-macros/CHANGELOG.md
new file mode 100644
index 0000000..c8c08d0
--- /dev/null
+++ b/crates/aptos-sdk-macros/CHANGELOG.md
@@ -0,0 +1,32 @@
+# Changelog
+
+All notable changes to `aptos-sdk-macros` will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [unreleased]
+
+## [0.2.0] - 2026-02-25
+
+### Security
+- Made path traversal check in `aptos_contract_file!` non-bypassable via path canonicalization
+- Added input validation for Rust identifiers generated from Move ABI to prevent panics on malformed input
+- Added Rust keyword detection with automatic raw identifier (`r#`) fallback
+
+### Changed
+- Updated generated code to use `const-hex` instead of `hex` crate (aligns with aptos-sdk 0.4.0)
+- Removed unused `extra-traits` feature from `syn` dependency
+- Configured `docs.rs` publishing metadata
+
+## [0.1.0] - 2026-01-06
+
+### Added
+- `aptos_contract!` procedural macro for inline ABI-based contract bindings
+- `aptos_contract_file!` procedural macro for file-based ABI contract bindings
+- Type-safe Rust code generation from Move module ABIs
+- Support for entry functions, view functions, and struct definitions
+- Move-to-Rust type mapping (primitives, vectors, options, objects)
+
+[0.2.0]: https://github.com/aptos-labs/aptos-rust-sdk/releases/tag/macros-v0.2.0
+[0.1.0]: https://github.com/aptos-labs/aptos-rust-sdk/releases/tag/macros-v0.1.0
diff --git a/crates/aptos-sdk-macros/Cargo.toml b/crates/aptos-sdk-macros/Cargo.toml
index a2162fb..369827e 100644
--- a/crates/aptos-sdk-macros/Cargo.toml
+++ b/crates/aptos-sdk-macros/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "aptos-sdk-macros"
-version = "0.1.0"
+version = "0.2.0"
 description = "Procedural macros for type-safe Aptos contract bindings"
 authors.workspace = true
 edition = "2024"
diff --git a/crates/aptos-sdk/CHANGELOG.md b/crates/aptos-sdk/CHANGELOG.md
index 1925fe5..e6898e6 100644
--- a/crates/aptos-sdk/CHANGELOG.md
+++ b/crates/aptos-sdk/CHANGELOG.md
@@ -7,9 +7,30 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [unreleased]
 
+## [0.4.0] - 2026-02-25
+
+### Security
+- Comprehensive security audit remediating 21 findings across the SDK
+- Second-pass audit fixes across crypto, keyless, and API client modules
+- Enforced low-S normalization for ECDSA (secp256k1/secp256r1) signatures to match aptos-core
+- Hardened keyless account JWT verification
+- Improved input validation across API clients and codegen
+
 ### Changed
-- Upgraded `reqwest` to v0.13
-- Use `const-hex` crate instead of `hex`
+- Upgraded `reqwest` from v0.12 to v0.13
+- Replaced `hex` crate with `const-hex` for improved performance
+- Removed `async-trait` dependency in favor of native async trait support
+- Audited and cleaned up dependency tree
+- Bumped `keccak` from 0.1.5 to 0.1.6
+- Improved dependency feature selection for reduced compile times
+- Configured `docs.rs` metadata for release builds
+
+### Fixed
+- Resolved rustdoc warnings breaking CI documentation check
+- Fixed clippy `needless_borrows_for_generic_args` warnings
+
+### Performance
+- Reduced allocations and lock overhead in hot paths
 
 ### Removed
 - Unnecessary feature-flags
@@ -88,5 +109,6 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - This SDK is independent of `aptos-core` for faster compilation
 - Minimum Supported Rust Version (MSRV): 1.90
 
-[0.1.0]: https://github.com/aptos-labs/aptos-rust-sdk/releases/tag/v0.1.0
+[0.4.0]: https://github.com/aptos-labs/aptos-rust-sdk/releases/tag/sdk-v0.4.0
+[0.1.0]: https://github.com/aptos-labs/aptos-rust-sdk/releases/tag/sdk-v0.1.0
 
diff --git a/crates/aptos-sdk/Cargo.toml b/crates/aptos-sdk/Cargo.toml
index c162a3e..c81e2ca 100644
--- a/crates/aptos-sdk/Cargo.toml
+++ b/crates/aptos-sdk/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "aptos-sdk"
-version = "0.3.0"
+version = "0.4.0"
 description = "A user-friendly, idiomatic Rust SDK for the Aptos blockchain"
 authors.workspace = true
 edition.workspace = true