0.3.1 - Minimum SDK bump

• Raise the minimum deployment targets from 16.0 to 17.0 for iOS, tvOS, and
  Mac Catalyst. The macOS 13.0 and visionOS 1.0 minimums are unchanged.

0.3.0 - Conformance Improvements

• Add server-redirection compatibility by following redirection PDUs, reconnecting with server-provided routing tokens, handling connect-time bandwidth detection, and using the required drdynvc ShowProtocol framing.
• Improve Windows and KDE KRdp activation compatibility across licensing, auto-detect, Confirm Active, finalization, auxiliary dynamic channels, remote termination, and reconnect flows.
• Add a persistent RDPGFX compositor for mapped and scaled surfaces, partial and multi-surface updates, surface caches, solid fills, alpha bitmaps, graphics resets, and output composition.
• Add full RemoteFX Progressive decoding, including Reduce-Extrapolate transforms, refinement and sub-band difference passes, shared tile state, change regions, and compatible region envelopes.
• Add decoded rendering for classic RemoteFX, ClearCodec, NSCodec, RDP 6.0 bitmap compression, and Interleaved RLE surface and bitmap updates.
• Add AVC444 and AVC444v2 chroma reconstruction with persistent luma and chroma state, reverse filtering, per-surface decoder isolation, and a Metal reconstruction path.
• Improve H.264 presentation with zero-copy CoreVideo frames, per-surface resynchronization, dependent-frame preservation, bounded decode backlog handling, and acknowledgements sent only after successful decode and presentation.
• Advertise every supported RDPGFX capability version from 8.0 through 10.7, validate the server-selected version, enforce negotiated cache and fragment limits, and preserve compatibility with server-selected capability flags.
• Add remote pointer shape and cache handling plus fast-path keyboard, Unicode, pointer, extended-button, and wheel input support.
• Add RDP client licensing for new, upgraded, and stored licenses, including platform-challenge handling and Keychain-backed license persistence in the macOS example.
• Expand clipboard, audio input and output, device redirection, display control, CredSSP, NTLM, MCS, fast-path, ZGFX, and graphics PDU validation and interoperability.
• Add RDPWireTranscript capture and offline replay, explicit capture geometry, timed Windows-key probes, richer graphics diagnostics, and latest-frame capture after a configurable settle window.
• Add captured negotiation fixtures, transcript replay coverage, and expanded mock-server regression tests for Windows and KRdp connection and graphics paths.

0.2.0 - Windows Compatibility

• Add a TLS certificate callback so live clients can show certificate trust state before the session ends.
• Add a timeout while live viewer sessions wait for the first graphics frame after RDPGFX setup, preventing stalled sessions from blocking forever.
• Add CredSSP with NTLM authentication for Windows hosts that require Network Level Authentication.
• Add selectable RDPGFX capability profiles for automatic, AVC thin-client, AVC420, and legacy negotiation paths.
• Add Windows graphics compatibility for bitmap codec capability advertisement, frame acknowledgements, thin-client fallbacks, ClearCodec and NSCodec bitmap streams, ZGFX compression, RemoteFX CAVIDEO updates, and uncompressed BGRA surface composition.
• Add parsing and diagnostics for more RDPGFX update paths, including CAPROGRESSIVE summaries, solid fill, surface cache, and cache-to-surface commands.
• Add bitmap frame decoding through CoreVideo and bounded in-order video decode buffering that can drop forward at resync frames instead of falling far behind the live session.
• Add device-redirection protocol handling for server announce, capability, and user-logon PDUs during preflight sessions.
• Add clipboard temporary-directory support plus sent-message and probe diagnostics for CLIPRDR validation.
• Improve RDPSND compatibility with dynamic audio channel handling and compatible PCM format selection.
• Move the example apps from XcodeGen to SwiftPM and add the RDPFrameBenchmark tool for measuring live frame capture and decode paths.
• Expand RDPPreflight and RDPFirstFrameCapture with graphics profile selection, Windows clipboard/input/audio probes, display resize support, richer graphics path reporting, and failure-update diagnostics.
• Improve the macOS example viewer with graphics profile controls, early certificate warning updates, Stats for Nerds graphics path reporting, and more reliable window activation.
• Expand mock-server and unit coverage for Windows CredSSP, graphics, codecs, clipboard diagnostics, device redirection, audio, display resize, and input paths.

0.1.0 - Initial Release

Initial release of RDPKit: a Pure Swift RDP library for Apple platforms, built around Apple media, security, and networking primitives instead of FreeRDP.

Highlights

• Pure Swift RDP protocol implementation for macOS, iOS, tvOS, Mac Catalyst, and visionOS
• RDPGFX graphics pipeline with AVC420/H.264, AVC444/H.264, AVC444v2, and HEVC/H.265 support
• VideoToolbox-backed decode helpers with CoreVideo frame output
• SwiftNIO and SwiftNIO SSL transport, including TLS upgrade on an existing RDP socket
• Credential-aware session setup, certificate reporting, input, display control, clipboard, file transfer, audio, and render metrics
• No FreeRDP, no native RDP core, and no non-Apple package dependencies

Installation

dependencies: [
    .package(url: "https://github.com/steelbrain/RDPKit.git", from: "0.1.0"),
]

Then add RDPKit to your target:

.target(
    name: "YourTarget",
    dependencies: ["RDPKit"]
)

Platform Requirements

• macOS 13.0+
• iOS 16.0+
• tvOS 16.0+
• Mac Catalyst 16.0+
• visionOS 1.0+
• Swift 6.0+

Included In This Release

Graphics

• RDP Graphics Pipeline capability negotiation and frame parsing
• AVC420/H.264 and AVC444/H.264 bitmap stream support
• AVC444v2 layout handling
• HEVC/H.265 Annex B sample preparation
• H.264/H.265 NAL unit metadata extraction
• VideoToolbox decode helpers with hardware acceleration reporting
• Latest-frame decode queue for dropping stale frames when decoding falls behind
• Frame metadata, frame acknowledgements, render metrics, and wire bandwidth samples

Session And Transport

• TPKT and X.224 connection negotiation
• TLS upgrade via SwiftNIO SSL
• CredSSP negotiation reporting and credential-aware Client Info PDUs
• MCS connect, channel join, static virtual channels, and dynamic virtual channels
• Certificate SHA-256 reporting and configurable certificate warning visibility

Input And Display

• Keyboard scancode and Unicode input
• Pointer motion, buttons, extended buttons, vertical wheel, and horizontal wheel
• Display control channel support for resize and monitor layout updates
• HiDPI-aware display scale models for Apple clients

Clipboard, Files, And Audio

• Unicode text clipboard support
• File Group Descriptor W parsing and encoding
• Remote file contents requests and responses
• Local-to-remote and remote-to-local clipboard file transfer plumbing
• RDPSND static channel support
• PCM format negotiation
• Wave info, wave data, Wave2, training, quality mode, and wave confirm PDUs

Example App And Tools

• Native macOS RDPClient example app
• Certificate warning review and trust handling
• Keychain-backed saved connections
• Clipboard and audio toggles
• Stats for Nerds diagnostics window
• RDPPreflight protocol inspection tool
• RDPFirstFrameCapture live graphics capture tool
• Mock KRdp server tests for CI-friendly validation