📔Release Notes

Delta 1.7.2

May 7, 2025

• Revised Patreon sign-up flow to make it easier to join our Patreon and unlock Patreon-exclusive benefits (U.S. App Store only).

Delta 1.7.1

April 8, 2025

• Disables OpenGL ES 3.0 by default for Donkey Kong 64 to fix crashes

• Tapping "Join our Patreon" now directly opens link to Patreon campaign instead of AltStore

• Fixed game previews not respecting OpenGL ES 3.0 setting

• Fixed missing Patreon-exclusive app icons in PAL version

Delta 1.7

March 31, 2025

New

Online Multiplayer

• Play online-compatible Nintendo DS games with friends around the world!

• Connect via community Nintendo WFC servers

• Choose one of the default servers, or provide a custom DNS

  • Wiimmfi (167.235.229.36)
  • WiiLink WFC (5.161.56.11)
  • AltWFC (172.104.88.237)
• Disables pausing & other functionality during multiplayer sessions

• Shows toast notification when connecting + disconnecting from Nintendo WFC

• Stays connected online up to 30 seconds after entering background

Updated N64 Core

• Uses OpenGL ES 3.0 to render games

• Fixes many common graphical issues (e.g. black textures)

• Optionally switch back to OpenGL ES 2.0 on per-game basis

• Custom resolutions by editing config file at Delta/Cores/Mupen64Plus/Config/mupen64plus.cfg

• Custom texture packs via Delta/Cores/Mupen64Plus/hires_texture directory

Game Screenshots (thanks Chris Rittenhouse!)

• New option in pause menu to take screenshots of games

• Upscales screenshot to 1080p to ensure they appear sharp in Photos app

• Map game controller buttons to take screenshot

• New screenshot input for controller skins

• [Experimental Feature] Save to dedicated "Delta Screenshots" album

Game Controller Skins

• Choose a skin to use when a game controller is connected

• Choose system-wide or per-game

“What's New” Screen

• Lists new features in latest Delta update on first launch

• Includes links to Delta's new social media accounts

  • Mastodon: @[e-mail]
  • Threads: @delta_emulator
  • Bluesky: @deltaemulator.com
• [Experimental Feature] "Show What's New" setting to re-show on next launch

Game Settings

• New context-menu option to configure per-game settings

  • Preferred game skin

  • OpenGL ES 3.0 (N64)

  • Inserted GBA Game (DS)

• Replaces "Change Game Skin" in game context menu

Controller Case Support

• Controller skins can adjust position of pause menu via new `menuInsets` property

• Allows using pause menu with cases such as GAMEBABY and PlayCase
• Supports vertical and horizontal insets

RetroAchievements (Experimental Feature)

• Log in with RetroAchievements account to track achievements

• Supports Hardcore mode (Optional)

• Shows notification after unlocking achievement

• Supports NES, SNES, and N64 games

• Remaining systems coming soon!

"Ask Lu" (Experimental Feature)

• Optional AI assistant with detailed information about various games

• Ask for help about the current game you're playing

• For more info, check their Discord

Improved

Settings

• Changed "Respect Silent Mode" default to OFF for all devices

• Always shows Friend Zone Patrons in Settings

• Shows "Follow Us" footer at bottom of Settings screen

• Removed legacy credits for Riley, Shane, and Caroline

• Includes timestamp in exported error log filename

Experimental Features

• Renamed "Variable Fast Forward" to "Custom Fast Forward Speed"

• Removed legacy Experimental Features

  • Online Multiplayer

  • OpenGL ES 3.0

  • Game Screenshots

Misc.

• Removes "External Purchase Link" entitlement from non-App Store builds

Fixed

• Fixed using analog sticks as discrete inputs for controllers with poor calibration (thanks Ian Clawson!)
• Fixed black/missing/incorrect textures in various N64 games

• Fixed white screen after (un-)locking device while AirPlaying DS games

• Fixed no audio for game previews in silent mode when Respect Silent Mode is OFF

• Fixed showing all save states as incompatible for non-DS systems

• Fixed crash when viewing save states for unsupported system

• Fixed missing accessibility label for Settings button

• Fixed not showing "Reset" button when choosing landscape skin

• Fixed not showing "Reset" button when choosing per-game Game Controller or AirPlay skins

• Fixed "Hold Button" description layout after orientation change

• [Delta Sync] Fixed misleading “file does not exist” errors when previous version is missing

• [iPad] Fixed qutting all games when using multiple scenes

Delta 1.6.5

December 17, 2024

New

General

• “Resume” button to quickly resume paused game

• Dark + tinted variants of primary app icon

  • Toggle between light and dark mode variants to view both in settings

Patreon Integration (U.S. App Store only)

• Access to patron-exclusive features by connecting Patreon account

• Includes alternate app icons and Experimental Features

• "External Purchase Link" to join our Patreon directly in-app

Alternate App Icons (Patrons)

• New "Button Pack" icon set by Louie Mantia
• Asks user to reboot device if attempting to choose existing app icon

• Previous patron-only icons now available in U.S. App Store

Experimental Features (Patrons)

• Now available in U.S. App Store

• New OpenGL ES 3.0 renderer fixes many common graphical issues

DS Online Multiplayer (Patrons)

• Play Nintendo DS games online with friends!

• Connect via 3rd-party Nintendo WFC servers (e.g. Kaeru)

• Available in U.S. App Store via Experimental Features

Fixed

• Fixed incorrect mappings for iPad landscape GBC controller skin

Delta 1.6.4

September 19, 2024

• Fixed black screen when running on macOS 15 Sequoia

• Fixed showing Patreon icons by accident in App Store build

Delta 1.6.3

September 16, 2024

• Fixed not unlocking Experimental Features

• Fixed misc. visual bugs on iOS 18

Delta 1.6.2

July 31, 2024

• Changed Caroline Moore's credit to “Creative Director”

• Fixed occasionally dropping DS touch screen inputs

• Fixed crash when loading certain skins with fallback traits

• Fixed crash when loading certain iPhone skins on iPad

• Fixed app freezing when AirPlaying non-DS systems

• Fixed app freezing when rotating device with certain skins

Delta 1.6.1

July 23, 2024

New

• Supports using iPhone skins on iPad

• "Show Touches" Experimental Feature

  • Optionally show touches when playing games or navigating UI

  • Useful for screen recordings and tutorials

Fixed

• Fixed rare crash when loading DS save states

• Fixed game controllers not working on visionOS and macOS

• Fixed hardware keyboard support on macOS

• Fixed menu button not working on external controllers with remapped menu button

• Fixed delayed inputs on external controllers with remapped menu button

• Fixed DS touch screen not responding after updating to iPad version

Delta 1.6

July 10, 2024

New

App Icon

• Brand new legally-compliant app icon (thanks Caroline Moore!)
• Includes alternative app icons designed by community members:

• "Halogenide" by Sebastiaan de With
• "Ketchup" by Ben McCarthy
• "Microchip" by Sean Fletcher

iPad Support

• Play games full screen on iPad's beautiful display

• Brand new controller skins designed specifically for iPad (thanks Caroline Moore!)
• Supports multiple windows in Stage Manager and Split View

• Automatically pauses games when switching windows (optional)

Handoff

• Seamlessly switch between iPhone and iPad

• Continues playing exactly where you left off

• Also supports Delta on Apple Silicon Macs via Mac App Store

melonDS 0.9.5

• Improves DS game compatibility & performance

• BIOS files are no longer required

• Supports "inserting" GBA games into DS dual-slot

• Increased Fast Forward speed to 3x (A15 processor or later)

Menu Button Gestures

• Use gestures while holding menu button to perform quick actions

• Menu + Horizontal Swipe: Fast Forward

• Menu + Any Button: Hold Button

• Menu + Double-Tap: Quick Save

• Menu + Long-Press: Quick Load

Experimental Features

• New section in Settings for features by third-party contributors

• Features are WIP and should be used at user’s discretion

• Available for Patrons on "Beta Access" tier or higher

• Latest experimental features:

  • "Reverse Controller Skin Screens"

    • Allow switching controller skin screens at runtime

      • e.g. flipping DS screens

  • "Skin Debugging"

    • Visually show hit-boxes on controller skins to debug mappings

      • Replaces legacy "debug" key in controller skin info.json

      • Optionally ignore padding ("extendedEdges")

Improved

Save States

• Sort save states by name

• View all incompatible screenshots on a separate screen

• Export save states to import into other emulators

“Display Full Screen” AirPlay Setting

• Control whether Delta shows games full screen on external displays

• Disable to use multiple windows on external display with Stage Manager

Misc.

• Renamed “Change Controller Skin” context-menu option to “Change Game Skin”

• Logs additional information in Error Log

• Supports Game Mode on iOS 18+

• Increased DS screen size for default edge-to-edge iPhone landscape skin

Fixed

• Fixed interface rotating when playing WarioWare: Twisted!

• Fixed Pokemon Black & White (2) freezing with C-Gear enabled

• Fixed preparing CheatBase every app launch

• Fixed initializing games database concurrently

Delta 1.5.4

May 17, 2024

New App Icon

• Updated app icon to avoid legal trouble with Adobe

Revised context menu for games

• Groups related settings together

• Nests Import/Export Save File under parent “Manage Save File” option

• Changes Rename icon to match Files app

• Renames “Save States” to “View Save States”

Fixed

• Fixed exporting save file without file extension

• Fixed broken melonDS BIOS FAQ link

Delta 1.5.2

April 25, 2024

Improved

• Pre-fills Games Database search bar with game name

• Revises Patreon settings section

• Updates Caroline’s + Grant’s credit URLs to Threads

• Adds “Credits” footer mentioning to follow Riley and Shane for Delta news

Fixed

• Fixed AirPlay message covering touch screen when AirPlaying just top screen

• Fixed minor AirPlay message layout issues

• Hides Genesis controller mapping for public builds

Delta 1.5.1

April 17, 2024

• Initial App Store release!

• Updated social media account for Riley & Shane to Threads

• Adds "Support" settings section

Delta 1.5

February 20, 2024

New

Local Multiplayer (thanks Ian Clawson!)

• Play multiplayer NES, SNES, and N64 games with friends

• Supports up to 4 players

AirPlay Support

• Stream your games to the big screen with AirPlay

• [DS] Layout screens horizontally or vertically on TV

• [DS] Optionally AirPlay just top screen for true multi-screen experience

Misc.

• Raised deployment target to iOS 14.0

Improved

Delta Sync

• Automatically resolves Cheat + ControllerSkin sync conflicts

• Syncs GameSave.sha1 hash between devices to prevent redundant uploads

• Displays activity indicator when signing in

• Delays seeding Delta Sync database until initial sync

• Delays sync until after interactive Settings dismissal has completed

• Uses local modification date when uploading changes

• Saves change token to disk immediately after fetching remote changes

• Deauthenticates existing service when switching services

• Improved error message when remote storage is out of free space (Dropbox only)

• Added detailed logging to help debug issues

• View complete error log by pressing "Export Error Log" in Settings

Non-MFi Controller Support

• New default mappings for single Joy-Cons and Switch NES/SNES controllers

• Uses Logo/Home button as Delta pause button if controller has one

Settings

• Revised UI to use modern "inset grouped" style

• Uses large titles where appropriate

Dependencies

• Updates GoogleSignIn dependency to 5.0.2

• Removes Fabric + Crashlytics dependencies

Misc.

• Replaces UIDocumentBrowserViewController with UIDocumentPickerViewController on iOS 17+

• Skips checksum verification when importing zipped games

• Adds "Learn More" links to FAQ thoughout the app

• Displays "Touch Screen" instead of "iPhone" or "iPad" when using touch controls

• Includes Delta Sync authentication error information in detailed error log

• Switches to weak references for EmulatorCore + VideoManager gameViews

• Adds GameView.isEnabled to enable/disable rendering per-GameView

Fixed

Delta Sync

• Fixed "Harmony.sqlite couldn't be opened" sync error when there are more than 1000 games

• Fixed "file does not exist" sync error after restoring previous version

• Fixed Delta Sync switch remaining OFF if users cancels "Disable Syncing?" warning alert

• Fixed incorrect mass conflicts when signing out then back in

• Fixed missing references to remote files when signing out then back in

• Fixed queued syncs sometimes fetching outdated changes

• Fixed accidentally using wrong account when signed-in to multiple services

• Fixed issue causing Harmony to skip seeding database, potentially overwriting local data with old remote data

• Fixed incorrectly marking some game saves as conflicted during initial sync

• Fixed accidentally signing-out after signing-in to previous Google Drive account

Settings

• Fixed incorrect font size for some labels

• Hides "Haptic Feedback" section on iPad

Misc.

• Fixed accidentally deleting Games directory during sync in rare circumstances

• Fixed GridCollectionViewCell "Unable to simultaneously satisfy constraints" runtime error

Delta 1.4.2

September 19, 2023

• Fixed crash when loading save states on iOS 17

• Fixed displaying system name in dark text when remapping inputs on iOS 17

Delta 1.4.1

May 10, 2023

• Fixed translucent controller skins becoming opaque after rotating device

• Fixed incorrect controller skin thumbstick size after rotating device

Delta 1.4

February 28, 2023

New

CheatBase (thanks Noah Keck!)

• View and add all known cheats for supported games

• Read cheat descriptions, including how to activate them (if needed)

• Groups cheats by category for easier browsing

• Limited to DS games for now, but will be expanded in the future

“Respect Silent Mode” setting

• When enabled, Delta will only play game audio when your device isn’t muted

• Automatically mutes game audio if another app is playing audio

“Contributors” screen

• See everyone who has contributed to the Delta codebase on GitHub

• View associated Pull Requests/GitHub repos for contributed features

Misc.

• Supports controller skins with new `placement` parameter

• Supports controller skins with custom screens that don’t have explicit `outputFrame`

• Adds Shane Gill to Credits

Improved

• Automatically pauses + resumes emulation when switching between foreground apps with Stage Manager

• Uses modern menu UI when importing games

• Updated icon for "Copy Deep Link" action when sharing a game

Fixed

• Fixed error sharing games via certain share methods

• Fixed exporting save files for games with names containing special characters

• Fixed potential crash rendering game screen after changing EAGLContext

• Fixed incorrect game screen frame when software keyboard appears on iOS 16

• Fixed software keyboard sometimes appearing when not emulating anything

• Fixed keyboard controller appearing when another controller is active

• Fixed using Xbox controller analog sticks as D-pad inputs

• Fixed remapping analog sticks

• Fixed re-activating held inputs

• Fixed duplicate inputs when re-activating discrete held input

• Fixed incorrect font size for Credits section in Settings