diff --git a/Cargo.lock b/Cargo.lock
index 00433b4..889b4eb 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -399,7 +399,7 @@ checksum = "460fbee9c2c2f33933d720630a6a0bac33ba7053db5344fac858d4b8952d77d5"
 
 [[package]]
 name = "cryprot-codes"
-version = "0.2.0"
+version = "0.2.1"
 dependencies = [
  "aes",
  "bytemuck",
@@ -415,7 +415,7 @@ dependencies = [
 
 [[package]]
 name = "cryprot-core"
-version = "0.2.0"
+version = "0.3.0"
 dependencies = [
  "aes",
  "blake3",
@@ -443,7 +443,7 @@ dependencies = [
 
 [[package]]
 name = "cryprot-net"
-version = "0.2.0"
+version = "0.2.1"
 dependencies = [
  "anyhow",
  "bincode",
@@ -462,7 +462,7 @@ dependencies = [
 
 [[package]]
 name = "cryprot-ot"
-version = "0.2.0"
+version = "0.2.1"
 dependencies = [
  "anyhow",
  "bitvec",
@@ -483,7 +483,7 @@ dependencies = [
 
 [[package]]
 name = "cryprot-pprf"
-version = "0.2.0"
+version = "0.2.1"
 dependencies = [
  "aes",
  "bytemuck",
diff --git a/Cargo.toml b/Cargo.toml
index bd6474f..4e17e09 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -22,10 +22,10 @@ blake3 = "1.5.5"
 bytemuck = { version = "1.21.0", features = ["must_cast"] }
 cpufeatures = "0.2.17"
 criterion = { version = "0.8", features = ["async_tokio", "html_reports"] }
-cryprot-codes = { version = "0.2.0", path = "cryprot-codes" }
-cryprot-core = { version = "0.2.0", path = "cryprot-core" }
-cryprot-net = { version = "0.2.0", path = "cryprot-net" }
-cryprot-pprf = { version = "0.2.0", path = "cryprot-pprf" }
+cryprot-codes = { version = "0.2.1", path = "cryprot-codes" }
+cryprot-core = { version = "0.3.0", path = "cryprot-core" }
+cryprot-net = { version = "0.2.1", path = "cryprot-net" }
+cryprot-pprf = { version = "0.2.1", path = "cryprot-pprf" }
 curve25519-dalek = "4.1.3"
 fastdivide = "0.4.2"
 futures = "0.3.30"
diff --git a/cryprot-codes/CHANGELOG.md b/cryprot-codes/CHANGELOG.md
new file mode 100644
index 0000000..2adae88
--- /dev/null
+++ b/cryprot-codes/CHANGELOG.md
@@ -0,0 +1,13 @@
+# Changelog
+
+All notable changes to this project 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]
+
+## [0.2.1](https://github.com/robinhundt/CryProt/compare/cryprot-codes-v0.2.0...cryprot-codes-v0.2.1) - 2026-01-21
+
+### Other
+- update dependencies
diff --git a/cryprot-codes/Cargo.toml b/cryprot-codes/Cargo.toml
index 6a42df0..03f569c 100644
--- a/cryprot-codes/Cargo.toml
+++ b/cryprot-codes/Cargo.toml
@@ -4,7 +4,7 @@ edition = "2024"
 keywords = ["expand-convolute"]
 license = "MIT"
 name = "cryprot-codes"
-version = "0.2.0"
+version = "0.2.1"
 
 authors.workspace = true
 repository.workspace = true
diff --git a/cryprot-core/CHANGELOG.md b/cryprot-core/CHANGELOG.md
new file mode 100644
index 0000000..5fe12e0
--- /dev/null
+++ b/cryprot-core/CHANGELOG.md
@@ -0,0 +1,22 @@
+# Changelog
+
+All notable changes to this project 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]
+
+## [0.3.0](https://github.com/robinhundt/CryProt/compare/cryprot-core-v0.2.0...cryprot-core-v0.3.0) - 2026-01-21
+
+### Removed
+- [**breaking**] remove `nightly` feature ([#30](https://github.com/robinhundt/CryProt/pull/30))
+
+### Changed
+- set is_nightly cfg in build.rs if using nightly compiler ([#30](https://github.com/robinhundt/CryProt/pull/30))
+- refactor AVX2 transpose for better understandability and less use of unsafe ([#13](https://github.com/robinhundt/CryProt/pull/13))
+- remove unsafe from portable transpose implementation ([#14](https://github.com/robinhundt/CryProt/pull/14))
+
+
+### Other
+- update dependencies
diff --git a/cryprot-core/Cargo.toml b/cryprot-core/Cargo.toml
index bed97b6..e292ec1 100644
--- a/cryprot-core/Cargo.toml
+++ b/cryprot-core/Cargo.toml
@@ -4,7 +4,7 @@ edition = "2024"
 keywords = ["cryptography", "mpc"]
 license = "MIT"
 name = "cryprot-core"
-version = "0.2.0"
+version = "0.3.0"
 
 authors.workspace = true
 repository.workspace = true
diff --git a/cryprot-net/CHANGELOG.md b/cryprot-net/CHANGELOG.md
new file mode 100644
index 0000000..5344911
--- /dev/null
+++ b/cryprot-net/CHANGELOG.md
@@ -0,0 +1,13 @@
+# Changelog
+
+All notable changes to this project 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]
+
+## [0.2.1](https://github.com/robinhundt/CryProt/compare/cryprot-net-v0.2.0...cryprot-net-v0.2.1) - 2026-01-21
+
+### Other
+- update dependencies
diff --git a/cryprot-net/Cargo.toml b/cryprot-net/Cargo.toml
index 9a91e36..7375da8 100644
--- a/cryprot-net/Cargo.toml
+++ b/cryprot-net/Cargo.toml
@@ -4,7 +4,7 @@ edition = "2024"
 keywords = ["networking", "quic"]
 license = "MIT"
 name = "cryprot-net"
-version = "0.2.0"
+version = "0.2.1"
 
 authors.workspace = true
 repository.workspace = true
diff --git a/cryprot-ot/CHANGELOG.md b/cryprot-ot/CHANGELOG.md
new file mode 100644
index 0000000..252afb8
--- /dev/null
+++ b/cryprot-ot/CHANGELOG.md
@@ -0,0 +1,14 @@
+# Changelog
+
+All notable changes to this project 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]
+
+## [0.2.1](https://github.com/robinhundt/CryProt/compare/cryprot-ot-v0.2.0...cryprot-ot-v0.2.1) - 2026-01-21
+
+### Security
+
+- fix silent OT malicious security ([#23](https://github.com/robinhundt/CryProt/pull/23))
diff --git a/cryprot-ot/Cargo.toml b/cryprot-ot/Cargo.toml
index b074d13..cac69be 100644
--- a/cryprot-ot/Cargo.toml
+++ b/cryprot-ot/Cargo.toml
@@ -4,7 +4,7 @@ edition = "2024"
 keywords = ["iknp", "kos", "oblivious-transfer", "silent-ot", "simplest-ot"]
 license = "MIT"
 name = "cryprot-ot"
-version = "0.2.0"
+version = "0.2.1"
 
 authors.workspace = true
 repository.workspace = true
diff --git a/cryprot-pprf/CHANGELOG.md b/cryprot-pprf/CHANGELOG.md
new file mode 100644
index 0000000..d7bacee
--- /dev/null
+++ b/cryprot-pprf/CHANGELOG.md
@@ -0,0 +1,14 @@
+# Changelog
+
+All notable changes to this project 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]
+
+## [0.2.1](https://github.com/robinhundt/CryProt/compare/cryprot-pprf-v0.2.0...cryprot-pprf-v0.2.1) - 2026-01-21
+
+### Other
+
+- update dependencies
diff --git a/cryprot-pprf/Cargo.toml b/cryprot-pprf/Cargo.toml
index d31f655..c75c821 100644
--- a/cryprot-pprf/Cargo.toml
+++ b/cryprot-pprf/Cargo.toml
@@ -4,7 +4,7 @@ edition = "2024"
 keywords = ["mpc", "pprf", "silent-ot"]
 license = "MIT"
 name = "cryprot-pprf"
-version = "0.2.0"
+version = "0.2.1"
 
 authors.workspace = true
 repository.workspace = true