EmuNations

Most Recent Changes

--1.2.0--

Announcement. Includes an overview of the major changes.

Features

• Add optional per-game deinterlacing for double-density interlaced games

• Add graphics API selection to the Renderer setting, including Direct3D 12 and Vulkan on supported Windows builds

• Enrich game information with native titles, box-back descriptions, player counts, cooperative play support, regional publishers and release dates, age ratings, and critic review scores

• Add an artwork carousel for front and back covers, disc images, flyers, and posters

• Add artwork download settings, a preferred box art region

• Add a button to turn off all cheats for a game

Fixes

• Save battery-backed data, resume state, and play time not always saving when closing the application window

• Prevent incomplete or conflicting file writes when saving configuration, library data, and game files

• Fix concurrent access to configuration, library data, achievements, and emulation pause and resume state

• Correct CHD self-referencing hunks and CD error-correction reconstruction

• Strengthen validation of CHD, FLAC, CUE/BIN, RAR, and compressed TAR files to reject corrupt data, invalid track layouts, unsafe file paths, and excessive decompression

• Correct alignment of misaligned memory accesses to work RAM, BIOS, and expansion RAM

• Stop MPEG video streams that exceed the card’s supported picture dimensions

• Fix Vulkan shader generation for 64-bit negation and conditional value assignments

• Keep the selected game visible when restoring the library list position

• Reset scrolling when changing detail or settings pages and correct directional navigation in settings

• Fix Backspace handling for Unicode search text and keep the search overlay within the window

• Scale screenshot previews to fit the preview area and GPU texture limits

• Validate input settings, reject empty game identifiers, and restore defaults for unsupported stored core options

• Require HTTPS for artwork, updates, and RetroAchievements requests, and validate achievement response sizes and image dimensions

• Restrict configuration file permissions to the owner

Changes

• Bundle game metadata, cheats, and rumble definitions with erings instead of downloading them separately

• Replace RetroArch RDB metadata and legacy CHT content handling with bundled game data

• Download artwork through a signed index and verify image hashes

• Improve keyboard and controller navigation with focusable scrollbars

• Group library buttons into add and remove actions and reorganize artwork settings

• Add Japanese font support and improve text spacing on game detail pages

• Improve Vulkan rendering performance and reduce graphics initialization overhead

• Separate application and core identity, and use the application name and version consistently in About, update checks, and download requests

• Update Go and supporting dependencies

--1.1.0--

Features

• Cheat supportDownload cheats during library scans
  Add custom Action Replay codes
  Enable and disable cheats per game

• Per-game settings for internal resolution and preprocessing shader effects

• Screenshots page in game details to browse and delete captures

• Library cleanup to remove missing games and discsRemoved games retain their play data for restoration on a later scan

• In-app file and folder picker with controller navigation

• Automatic update check and new release notifications

• Option to select GPU or software rendering

Fixes

• Fix startup recovery paths that could skip initialization or overwrite the library

• Prevent crashes when upscaled frames exceed the maximum supported image size

• Release gameplay GPU buffers when returning to the library

• Fix the details screen briefly showing the previous game’s achievement progress when quickly switching between games

• Fix the empty library button opening the wrong settings section

Changes

• Reorganize game details into Overview, Cheats, Settings, and Screenshots pages

• Scale the UI and fonts with the window size, replacing the font size setting

• Screenshots capture only the game picture, excluding overlays and black bars

• Improve screenshot naming and move image encoding off the rendering thread

• Require a second press to confirm permanent deletions

• Remove the Disable Analog Stick input option

• Always suppress RetroAchievements unknown emulator warning

Writeup and summary

Announcement. Includes an overview of the major changes.

--1.0.0--

Features

• GPU RenderingMetal (macOS)
  DX12 (Windows)
  Vulkan (Linux

• Internal resolution upscaling (1x, 2x, 4x, 8x, 16x)

Fixes

• Performance improvements around rendering

• Colors have been corrected

• Minor rendering fixes

Changes

• macOS now enables game mode

• Saves from previous versions are not compatible

Writeup and summary

Announcement (link): Includes overview of how rendering was implemented and performance metrics.

--0.4.3--

Changes

• Minor rendering fixes

• Bump desktop module version

--0.4.2--

Changes

• Refactor SH2 to stepped per instruction instead of stepped per cycle. Improves performance. Additional accuracy of stepping per cycle was not being utilized.

• Expand platform and controller support for rumble.

--0.4.1--

Fixes

• Goshed was called in a tight loop when it should only be called after a few ms as a yield

Changes

• Minor performance turning

Game Fixes

• ef55537 - DUKE NUK'EM (MK-81071)

• ce1bfb6 - PANZER DRAGOON ZWEI (MK-81022)

• 68d5ab7 - MEGAMAN X4 (T-1219H) | BATSUGUN (T-20605G) | RADIANT S.G (T-32902G)

• 2136e0c - MEGAMAN X4 (T-1219H)

• 405cba7 - ASTRA SUPERSTARS (T-1521G)

• 2928f79 - DAYTONA USA CIRCUIT EDITION (GS-9100)

• f6b1076 - INITIAL D (T-25503G)

--0.4.0--

Features

• Support 2 player in the UI

• Support controller profiles in the UI

• Support rumble via erumble filesAuto downloaded from repo on library scan
  

Writeup and summary

• Bringing Rumble to Saturn Games. Includes list of initial batch of games with rumble.

--0.3.4--

Fixes

• Fix milti index audio tracks not properly using the index

• Fix incorrect handling of vdp2 rgb bit 15 handling

Modeling

• Memory cart override so Die Hard Trilogy can be set to no cart. Otherwise, it can't run

Fixes for specific games:

• 7bdb7ab - XMEN-COTA (T-8108H)

• 9604f7d - XMEN-COTA (T-8108H)

• 8f3e5a4 - MARVEL SUPER HEROES VS. STREET FIGHTER (T-1238G)

• ab8ba13 - SPACE JAM (T-8125H)

• b64fb71 - SPACE JAM (T-8125H)

• 05d3013 - VATLVA (T-31501G), FALCOM CLASSICS (T-31503G | CD-2/2)

• 6b9ba34 - VATLVA (T-31501G)

• da38db2 - Die Hard Trilogy (T-16103H)

• 75209c3 - Die Hard Trilogy (T-16103H)

--0.3.3--

MPEG

• Testing and fixes for MPEG rendering for a variety of gamesMOON CRADLE (T-9109G)
  FALCOM CLASSICS (T-31503G | CD-2/2
  GUNGRIFFON - THE EURASIAN CONFLICT (T-4502G)
  SAKURA CLUB (GS-9134)

• Enhance restoring save states to allow clean rewind in the GUI

HLE BIOS

• Fixes for BUP

• Fixes for setting up the SH-2 slave CPU

Additional Fixes

• Various fixes for multiple games

• SH-2 cache fixes

• Increase game compatibility