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+# 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/1.1.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [Unreleased]
+
+## [0.1.3] - 2024-08-12
+
+### Added
+- Utilities sidecar library for easy note encryption (noscryptutil.h)
+- Utilities for padding calculations
+- Prints the name of the configured crypto backend during build
+- Many internal hardening improvments (span pass-by-value, span validation functions)
+- `NCEncryptionGetIvSize()` function to determine the size of the IV for a chosen encryption spec (nip04 or nip44)
+
+### Fixed
+- OpenSSL EVP incorrect cipher initialization vector
+- OpenSSL HKDF incorrect key derivation when switching to EVP api
+- Some missing calling convention macros for public api functions
+
+### Changed
+- Updated libsecp256k1 to v0.5.1
+- Updated OpenSSL to v3.3.1
+- Converted `NCToSecKey()` and `NCToPubKey()` to a explicitly named macros
+- Converted error code helper functions from header-only functions to standard api
+- Added helper functions to alter the `NCEncryptionArgs` api. Altering fields directly is now deprecated.
+- Public API visibility for non-Windows platforms now defaults to `extern`
+- **Breaking:** Changed the `nonce32` and `hmacKeyOut32` properties of the `NCEncryptionArgs` struct to `nonceData` and `keyData` respectively. ABI is still compatible, but API has changed. Again mutating this structure manually is now deprecated.
+- Unified some API naming conventions for better consistency
+
+### Removed
+- `NC_ENCRYPTION_NONCE_SIZE` macro for better forward compatability
+- `NC_NIP04_AES_IV_SIZE` macro for better forward compatability 
+
+## [0.1.2] - 2024-05-29
+
+### Added
+
+- `NCGetSharedContext()` to get a process-wide shared context.
+- C++ extern wrappers noscrypt.h public api
+- Integrated test exe to cmake ctest
+
+### Fixed
+
+- Potential memory leak for openssl evp contexts during error conditions.
+- mbedtls dependency compilation when using fetch for release builds.
+- fPIC errors for libsecp256k1.
+
+### Changed
+
+- Update libsecp256k1 to v0.5.0.
+- **Breaking:** `NCValidateSecretKey()` retruns NC_SUCCESS instead of 1.
+- Builds using OpenSSL as a crypto backend no longer require the monocypher dependency.
+
+### Removed
+
+- NCContext structure defintion.
+- Internal headers from the public include directory.
+
+[unreleased]: https://github.com/VnUgE/noscrypt/compare/v0.1.3...HEAD
+[0.1.3]: https://github.com/VnUgE/noscrypt/compare/v0.1.2...v0.1.3
+[0.1.2]: https://github.com/VnUgE/noscrypt/compare/v0.1.1...v0.1.2
+[0.1.1]: https://github.com/VnUgE/noscrypt/compare/v0.1.0...v0.1.1