What's Changed

SemVer Major

• Update to WWDC25 release by @Lukasa and @simonjbeaumont in #359, #365, #367, #397, #403, #410, #401, and #415, #417
• Replace all Foundation imports with FoundationEssentials by @Lukasa in #363
• Adopt Swift 6 mode by @Lukasa in #368
• Rename _CryptoExtras to CryptoExtras by @0xTim in #407
• Update README for 4.0 release by @Lukasa in #418

Full Changelog: 3.15.1...4.0.0

What's Changed

SemVer Patch

• Move away from Foundation.Thread by @Lukasa in #404
• Update BoringSSL to 0226f30467f540a3f62ef48d453f93927da199b6 by @gwynne in #406
• Buildfix OpenBSD. by @3405691582 in #411
• Remove useless try to fix warnings by @ptoffy in #412

Other Changes

• Fix script path in PR template by @0xTim in #408
• Make the tests Swift 6 ready. by @Lukasa in #409
• Enable Swift 6.2 jobs in CI by @rnro in #414

Full Changelog: 3.15.0...3.16.0

What's Changed

SemVer Minor

• Use Thread.threadDictionary instead of TaskLocal for thread-local by @simonjbeaumont in #395

SemVer Patch

• Avoid TSAN issue in _CryptoExtras/AES/CMAC by @aryan-25 in #402

Other Changes

• Improve vendor-boringssl.sh script to make it work better by @xtremekforever in #396
• Use Swift SDKs to generate symbols for Linux targets and armv7 (using swift-sdk-generator) by @xtremekforever in #399

New Contributors

• @xtremekforever made their first contribution in #396
• @aryan-25 made their first contribution in #402

Full Changelog: 3.14.0...3.15.0

What's Changed

SemVer Minor

• Add Sequence conformance to AES._CBC.IV (#389) by @wnagrodzki in #392
• Add AES CMAC support by @Lukasa in #394

Other Changes

• Enable release mode builds in CI by @josephnoir in #388

New Contributors

• @wnagrodzki made their first contribution in #392

Full Changelog: 3.13.3...3.14.0

What's Changed

SemVer Patch

• Cache curves to avoid repeatedly reallocating state by @Lukasa in #391

Other Changes

• Add some benchmarks for EC key agreement by @Lukasa in #390

Full Changelog: 3.13.2...3.13.3

What's Changed

SemVer Patch

• CMake Build: Disable CMP0157 by @etcwilde in #387

Full Changelog: 3.12.4...3.12.5

What's Changed

SemVer Patch

• Work around Swift compiler issue with consuming and TSAN by @Lukasa in #384
• Remove a few inlinability annotations by @glbrntt in #383

Full Changelog: 3.13.1...3.13.2

What's Changed

SemVer Patch

• Fix broken Windows tests (#350) by @Lukasa in #386
• build: Make swift-crypto build on Windows by @etcwilde in #385

Full Changelog: 3.12.3...3.12.4

What's Changed

SemVer Patch

• build: Make swift-crypto build on Windows by @Steelskin in #370

New Contributors

• @Steelskin made their first contribution in #370

Full Changelog: 3.13.0...3.13.1

What's Changed

SemVer Minor

• OpenBSD support. by @3405691582 in #349
• Drop Swift 5.9 by @rnro in #353
• Add a PKCS#8 DER property to private keys by @josephnoir in #372
• Add API for ARC(P-256) and deprecate ARC(P-384) by @simonjbeaumont in #374
• Typealias CryptoKitError by @0xTim in #285

SemVer Patch

• perf: Add benchmarks and reduce allocations by ~50% for ARC and VOPRF by @simonjbeaumont in #346
• Install swiftmodules with full module triple by @etcwilde in #354
• Update BoringSSL to 035e720641f385e82c72b7b0a9e1d89e58cb5ed5 by @Lukasa in #356
• Make EllipticCurvePoint and ArbitraryPrecisionInteger Sendable by @Lukasa in #366
• Remove security backend by @josephnoir in #373
• CMake: Declare ASN1 dependency by @etcwilde in #376

Other Changes

• Fix broken Windows tests by @Lukasa in #350
• Enable Swift 6.1 jobs in CI by @rnro in #351
• Fix typo in documentation for RSA private key constructors by @YourMJK in #362
• Add static SDK CI workflow by @rnro in #340
• Enable Windows CI on main by @Lukasa in #371
• Mention Windows in README by @gjcairo in #378

New Contributors

• @3405691582 made their first contribution in #349
• @YourMJK made their first contribution in #362
• @josephnoir made their first contribution in #372

Full Changelog: 3.12.3...3.13.0