PKHeX

24/03/26 - New Update:

• Legality:
• • Fixed: Handled some edge cases with latest release RNG Frame checks for Gen4.
• • Added: Verification for Gen3 CHANNEL and MYSTRY seed patterns.
• Added: Gen4/5 API now supports reading/writing battle videos to the savefile object.
• Fixed: Gen5 Entree Forest in Misc now saves correctly. If broken, open the editor on the previous release and save again.
• Fixed: Event Flag diff now works as intended. Pokedex button restored for some save formats (regression from last release).
• Changed: Plugin error messages will now more clearly indicate they are an issue with plugins rather than PKHeX's fault.
• Fixed: Gen4 Daycare seed set now works as intended, no longer corrupts Daycare slot 2.
• Fixed: Gen4 Mystery Gift now reads correctly.

24/03/10 - New Update:

• Legality: Added Encounter Slot RNG correlation checks for Gen4 (and Gen3). Because Encounter Type PID mismatch wasn't enough!
• • When hovering over a slot, the program will indicate a possible method to encounter the slot with a lead & initial seed (not Method 1).
• • Added: Gen8+ RNG seeds that are 64bit correlation (like SW/SH raids) will now indicate the detected RNG seed.
• • Added: Gen1/2 Event Gifts are now recognized completely. Thanks @ShadowMario3!
• Changed: Save Block handling reworked to better match the real game behavior of managing chunks of memory. Thanks @foohyfooh!
• Changed: Gen6 O-Power editor now edits individual indexes and usage counts.
• Added: Out-of-bounds text entry characters are now indicated with a [?] next to the Nickname/OT text entry. Thanks @abcboy101!
• Added: Batch Editor commands are kept when the window is closed, while the program remains open.
• Added: Loading empty save files (all 00 or FF) will now give a more detailed error message indicating failure.
• Added: More games indicate Daycare status completely. Maybe editing in the future?
• Added: Gen1/2 NSO save files are now able to be loaded, edited, and exported without needing an external tool.
• Added: Gen2 player color palette now editable via Block Data editor. Thanks @Bl4ckSh4rk!
• Added: Gen4/5 Battle Videos can now be extracted & interacted with via PKHeX.Core API code.
• Fixed: Gen3 FR/LG National Dex unlock fixed. Thanks @Bl4ckSh4rk!
• Fixed: Gen9 Alcremie formarg handling for Pokédex fixed. Thanks @sora10pls!

• Legality: Added Mochi Mayhem Pecharunt, Regulation F, and Blaziken Tera Raid recognition.
• • Fixed: Level 100 encounters that were evolved in S/V with level-up methods (Eevee, Magikarp) now recognize correctly.
• • Fixed: Gen1/2 transfers to Gen7+ will now recognize filtered OT names as valid. Thanks @abcboy101!
• • Fixed: Recognition of Gen8 Hidden Ability patched raids now works as intended.
• • Fixed: Recognition of Gen8+ GO encounters that evolve via form arguments now are recognized as intended.
• Added: MarkingCircle/Triangle/Square/etc now reimplemented, able to be used in Batch Editor commands.
• Added: Gen1/2 transfers to Gen7 can now override the default transfer version via program settings.
• Fixed: Gen9 Stellar type can now be set via Batch Editor with its corresponding type value (99).
• Fixed: Hover preview custom tooltip shows Hidden Power type correctly (was off by 1).
• Changed: Box Dump now uses a GUI to allow changing settings with more flexibility.

23/12/22 - New Update:

• Legality: Updates for Scarlet & Violet 3.0.0 behaviors revised to fix inaccuracies.
• • Fixed: Recognition of marks, stellar fixed encounters, and underdepths encounters.
• • Gold Bottle Cap on flawless IVs in S/V is now flagged; upload to HOME & back to get the official fix.
• Fixed: Gen9 S/V 7-Star Raid records now can be edited with the revised raid block editor. Thanks @foohyfooh!
• Fixed: Other misc regressions too insignificant to note (but observed & reported by many -- thanks!)

23/12/18 - New Update:

• Changed: PKHeX now uses .NET 8 for its runtime (updated from .NET 7)!
• • Requires Windows 64bit operating system, with the .NET Desktop Runtime 8.0.x
• • https://dotnet.microsoft.com/en-us/download/dotnet/8.0
• Added support for Scarlet & Violet 3.0.0 (Indigo Disk)
• Legality: Added encounters / changes as per Indigo Disk DLC adjustments.
• • Will still have issues with crossovers, Minior, and encounter locations. Will be addressed next release.
• • Fixed: Gen4 Manaphy PID rerolling behavior updated. Thanks @Lincoln-LM!
• Added: Hover preview now shows a custom preview tooltip. Old behavior can be reverted to via settings.
• Added: Gen6-9 map position/rotation editing. Thanks @abcboy101!
• Added: Gen6 XY Roamer editor. Thanks @foohyfooh!
• Added: Gen5 Musical Prop editor. Thanks @foohyfooh!
• Added: Gen4/5 Chatter editor. Thanks @abcboy101!
• Added: Gen4 KOR<->INT/JPN converter for save files. Thanks @abcboy101!
• Added: Gen2 Mystery Gift item / unlock flag editing. Thanks @RainingChain!
• Fixed: String conversion has been rewritten for easier maintenance. Future updates will handle Farfetch'd and other cases better.
• Fixed: Gen6/7 country/region names for the latest 3DS region manifest. Thanks @abcboy101!
• Fixed: Gen4 Pokétch Unlock cheat updates the total count of apps now. Thanks @foohyfooh!
• Fixed: Gen4 Complete Dex cheat updates female-only bitflags correctly now. Thanks @DeadSkullzJr!
• Fixed: Gen3 Colosseum Fateful Encounter flags now read/write correctly based on Japanese/International save file context.
• Fixed: Gen3 Mainline saves update party Mail indexes when lacking a mail held item (prevents invalid mail icon).
• Fixed: Gen1 RBY saves that have not yet received a starter now differentiate correctly. Thanks @fattard!

23/10/11 - New Update:

• Added support for Scarlet & Violet 2.0.2 save file sizes.
• Legality:
• • Badwords list has been updated to be more strict per latest Nintendo Switch 16.0.0 firmware. Thanks @Bl4ckSh4rk!
• • Gen9 Distribution Outbreaks now recognized. Thanks @Lusamine & @sora10pls!
• • Gen9 Crossover met location logic tweaked for better location identification in Kitakami.
• • Gen4 Pokéwalker IV spreads are now validated. Thanks @Lincoln-LM & @HappyLappy1!
• Added: Gen8 SW/SH adventure start date can now be changed in the Trainer Editor. Thansk @foohyfooh!
• Added: Gen4 Pokeathlon Points can now be edited via the Block Editor.
• Fixed: Initial program startup now notifies all plugins when a save is loaded on startup.

23/09/25 - New Update:

• Added support for more Scarlet & Violet 2.0.1 save file sizes.
• Legality: Added more Kitakami encounters (sub-zones) and basic weather mark recognition.
• Fixed: Encounter template recognition regressions resolved (Gen4 Pokewalker, Gen9 static encounter scale).
• Fixed: Gen9 S/V Pokédex for 2.0.1+ save files now references a new save file block & GUI editor.
• Added: Gen9 TM/Fly cheats now check for if a flag exists for pre-2.0.1 save files.
• Added: Gen9 Fashion unlock cheat now adds 2.0.1+ fashion if available.

23/09/16 - New Update:

• Added support for Scarlet & Violet 2.0.1 (Teal Mask)
• Legality: Added encounters / changes as per Teal Mask DLC adjustments.
• • May still have issues with crossovers / hidden ability permissions.
• • Changed: Evolve-Knowing-Move criteria has been rewritten for better side-game checks & accuracy.
• • Changed: More encounter generator fixes implemented (missed a few properties).
• Fixed: Gen9 Pokédex clearing individual entries now only wipes the entry instead of everything that follows. Thanks @Alexander3a !
• Fixed: Gen5 CGear Skin importing now gives the correct error message when too many unique tiles are imported.

23/08/23 - New Update:

• Legality: Added realtime RNG correlation checks for most SW/SH raids. Thanks @SciresM & @Lusamine !
• • Note: Seed details do not trickle out to the verbose legality report at this time since seeds are 64bit (not 32bit).
• • Added: The encounter generator / matching API has been refactored for better performance and maintenance.
• • Fixed: More evotree edge cases have been resolved since the last update.
• • Fixed: Gen4 Move Tutor now permits correctly for alternate forms.
• • Fixed: Gen2 Union Cave B2F fishing slots are now recognized correctly.
• • Fixed: Gen1/2 SID check no longer indicates "Fishy" when SID is correctly zero.
• Added: Technical Record editor now indicates yellow for record indexes that can be legally learned by a previous evolution.
• Added: Gen9 origin Transfers back to PK9 format now regenerate with legal values that would be sourced from HOME.
• Fixed: Gen9 Hoopa-Unbound no longer sets a FormArgument value of 3 whenever set back to box slots.
• Fixed: Gen7 US/UM relearn moves now properly show in all PK7s when loaded to tabs.
• Fixed: Gen5 CGear Skin handling now behaves correctly for importing & saving skins.
• Fixed: Pokérus strains now indicate correctly again in the PKM Editor GUI.

23/07/09 - New Update:

• Legality: Updated evolution checking algorithms to better identify game visitation. Thanks @Lusamine & @sora10pls !
• • Added: HOME 3.0.0 move sharing logic for learning moves via HOME instead of in-game.
• • Added: HOME 3.0.0 ball inheritance logic for breeding encounters for/from Scarlet/Violet.
• • Added: GO Master Ball legality checks now allows Master Ball when encounter date & type permits.
• • Added: GO encounters outside the availability window now display a detailed illegal message.
• Added: Gen4/5 Geonet/Unity Tower editor. Thanks @abcboy101 !
• Changed: Gen9 Tera Type icons now use higher quality sprites from HOME. Thanks @sora10pls !
• Changed: Gen8a Move Shop editor GUI has been redesigned for a more visual experience.
• Changed: Gen7b+ Height/Weight now show as gray whenever Scale takes precedence in sizing determinations.
• Fixed: Batch Editor filters now work correctly for Box/Slot when using operators other than ! or =
• Fixed: Gen7b Randomize IV/AV buttons now center correctly within the form.
• Fixed: Gen7 Report grid now shows Resort (Poké Pelago) slots correctly.
• Fixed: Gen6/7 Memory Editor now shows Country/Region visitation correctly.
• Fixed: Gen6 Hall of Fame editor now keeps leading zeroes on the TID/SID entry fields.
• Fixed: Gen5 unused second Roamer block editor editing now reads from the correct offsets. Thanks SaltedNeos !
• Fixed: Gen4 Ranch checksums are now applied correctly again. Thanks @Zazsona !
• Fixed: Gen3 adding Ferry Tickets no longer causes the program to error when your Key Items bag is full.
• Fixed: Gen2 International Crystal saves now set the backup checksum to the correct offset. Thanks @Zazsona !

23/06/03 - New Update:

• Added: HOME 3.0.0 initial support. Legality analysis is still under research. Thanks @Lusamine & @sora10pls !
• • Lacks full support for cross-game transfers involving evolutions and moves. Please be patient, there's a lot of things to handle!
• Added: Tech Record editor GUI has been redesigned for a more visual experience. Can now sort alphabetically, owned, or move type.
• Added: Gen9 S/V clothing "cheats" have been added to the Trainer Editor window. Thanks @pasqualenardiello!
• Fixed: Small regressions in item list permissions.
• Changed: Gen7 Totem Form sprites now display with an Orange-colored glow, similar to Gen3 C/XD shadow purple.
• Changed: DPI scaling adjusted for better appearance on high resolution monitors.

23/05/11 - New Update:

• Legality:
• • Changed: Creating a new PKM from template will set current moves same as the games.
• • Changed: Pokérus strains 0 & 8 now permitted due to official implementation errors in Gen2 & Gen3.
• • Fixed: Encounters crossing over into Mesagoza (location 8) are no longer permitted (vertical distance).
• • Fixed: TSV=0 HOME accounts are now permitted to exist, and antishiny XOR for the fixed PID gifts now behaves correctly.
• Added: Batch Editor filter commands can now reference other property values (aka "property copy") like modify commands.
• • To copy a property, specify like so: .Stat_ATK=*Stat_DEF
• • To filter based on the value of another property, same way.
• Added: Moves that have changed elemental type over generations will now indicate their type per the save file context.
• Added: Gen9 Player Image visualizer now shows the profile photos in the Trainer Editor. Thanks @pasqualenardiello !
• Added: Gen7 LGPE can now unlock all fashion via the Trainer Editor.
• Added: Gen5 Block editor now shows both roamer objects (Thundurus and Tornadus).
• Fixed: Gen9 scale indicators now reflect the >=1.1.0 patch scale thresholds. Thanks iD3M0N1C!
• Fixed: Gen5 C-Gear Skin no longer retains a file lock on imported skin image files.
• Fixed: Gen3 Memory Cards can now be detected as the latest save file, as well as a backup-file source for the pkmdb.
• Fixed: Gen3 XD un-purified shadow Pokémon no longer flag w/o Ribbon if they have a Shadow Gauge of 0 (ready to purify).
• Changed: Sub-form scaling mode changed to "Inherit" -- added a Display setting to revert back to Form scaling (from Dpi).

23/04/06 - New Update:

• Legality:
• • Changed: Vivillon 3DS Region handling reworked to handle all regions. Thanks @abcboy101!
• • Fixed: BDSP footprint ribbon now checks correctly.
• • Fixed: Gen4 Pokéwalker course captures are now allowed for all versions.
• Added: PKM Editor now shows the elemental type for Moves.
• Added: PKM Editor now shows affixed ribbon (or if one can be affixed) on the cosmetic tab.
• Added: Click the affixed ribbon indicator to open the ribbon editor (same as button).
• Added: Click a ribbon sprite in the ribbon editor to quickly affix it.
• Added: SV enrollment date can now be changed via Block Editor. Thanks @foohyfooh!
• Added: More Gen3 Mystery Gift API functionality added. Thanks @Bl4ckSh4rk!
• Fixed: Importing Mystery Gifts to the SaveFile's Mystery Gift list GUI's 11th slot now works as intended.
• Fixed: Gen4 Manaphy Egg now generates correctly from the Encounter Database.
• Fixed: Gen4/5 Country/Region no longer throws an error for certain countries.
• Fixed: Gen1/2 stats now calc correctly (perfect square-root EVs)
• Changed: Updated handling to correctly generate and verify size of WC9 entities.
• Changed: More performance improvements reducing allocations.

23/02/27 - New Update:

• Added: Support for S/V 1.2.0
• Added: SV style menu sprites for all species/forms. Thanks @sora10pls & @SciresM!
• Added: Gen5 Black/White City data can now be imported/exported, and Roamer status can be reset. Thanks @frefire!
• Added: Gen4/5 Geonet Location save file settings can now be viewed/changed. Thanks @abcboy101!
• Added: Gen4 Ranch now supports Toys from the Platinum game update. Thanks @Zazsona!
• Fixed: PKMEditor sidebar tab scaling now works on operating systems with scaling > 1. Thanks @Manu098vm!
• Fixed: Batch Editor string screening (ex. requesting ".Species=Pikachu" instead of 25) now works again.
• Fixed: Nature stat amplification clicks on the Stats tab now alters the amps correctly.
• Fixed: Update Available link now works as intended on .NET 7
• Fixed: Gen6 X/Y Pokéflute is no longer removed from Key Items as it can temporarily exist.
• Fixed: Gen5 C-Gear Skins now read/write correctly (again).
• Fixed: Gen3 Colosseum save files now generate valid savedata hashes on export.
• Fixed: Gen2 OT Names now edit save correctly when edited. Thanks @Zazsona!
• Changed: Shiny Sprite icon now shows as a larger icon, with Xor0 being subtly different. Thanks @Lusamine!
• Changed: GUI Translations updated. Thanks @ppllouf, @wubinwww, @mi-ya1987, @Manu098vm!
• Accessibility:
  A few changes have been made to assist screen readers, notably:
  PictureBox slots representing data (Pokémon, Mystery Gifts, etc) now draw a focus border, and can be tabbed between.
  The focus border can be disabled via settings by setting the indentation to -1.
  Added accessibility narration strings for specific controls.

23/01/30 - New Update:

• Fixed: Mystery Gift files now recognize via extension correctly.
• Fixed: Gen9 Pokédex bitflag get/set fixed (remapped species ID).
• Changed: GUI translations updated. Thanks @ppllouf, @riruo, @mi-ya1987 !
  23/01/26 - New Update: (33425) [6216411]
• Changed: PKHeX now uses .NET 7 for its runtime (updated from .NET Framework 4.6)!
• • Requires Windows 64bit operating system, with the .NET Desktop Runtime 7.0.x
• • https://dotnet.microsoft.com/en-us/download/dotnet/7.0
• • For those wanting to run the program from a Mac/Linux machine, use a Windows VM. No more mono/wine support.
• • This change results in a faster program, and being able to write more modern & extensible C# code.

23/01/26 - New Update:
 - Changed: PKHeX now uses .NET 7 for its runtime (updated from .NET Framework 4.6)!
 - - Requires Windows 64bit operating system, with the .NET Desktop Runtime 7.0.x
 - - https://dotnet.microsoft.com/en-us/download/dotnet/7.0
 - - For those wanting to run the program from a Mac/Linux machine, use a Windows VM. No more mono/wine support.
 - - This change results in a faster program, and being able to write more modern & extensible C# code.
 - Changed: The Main Window layout has been adjusted for better GUI scaling support:
 - - PKM Editor now uses vertical tabs, and some controls have moved to more appropriate tabs.
 - - PKM Editor now has a "Cosmetic" tab, which contains low significance values like Contest Stats.
 - - PKM Editor now has a simple selector for Handling Trainer selection rather than the background highlights.
 - Legality:
 - - Fixed: A few recognition bugs have been fixed. Thanks @Lorenzooone!
 - Batch Editor:
 - - Added: Batch Editor can now filter with >/≥ and </≤ operators, improved from just != and =.
 - - Added: Ribbon and Mark count properties added. Can now sort boxes by these counts!
 - - Changed: TID/SID properties renamed; when using 16-bit trainer IDs, use TID16/SID16.
 - Changed: Gen9 S/V no longer show the Square Shiny icon, as Xor0 no longer indicates differently in-game.
 - Changed: Gen9 S/V raid parameter editor "Set All 6 Star" changed to "Copy current values to Other Raids".
 - Changed: With the update to .NET 7, some features have been rewritten for better performance, or for better usage.
 - Changed: GUI translations updated. Thanks @Manu098vm, @Kitcham, @easyworld, @jimmyorz, @Bl4ckSh4rk, @ppllouf, @butaneeeee!

22/12/18 - New Update:

• Gen9 SV Added wandering/crossover logic for wild encounter location detection.
• Gen9 SV Added weather/time/personality Mark logic for wild encounters.
• Gen9 SV Removed inaccessible egg moves.
• Gen9 SV legality quirks ironed out, detection should be pretty reliable now.
• Added: SV 7-Star Raid record editor added. Thanks @sora10pls!
• Added: Form Argument numeric up-down now has a label in the PKM Editor.
• Fixed: Gen3 GC memory cards with multiple save files now read correctly again. Thanks @TheZett!
• Changed: Updated translation files. Thanks @easyworld, @Yarkis01, @Korados

22/12/01 - New Update:

• Added support for Scarlet & Violet 1.1.0.
• Legality:
• • Fixed: Gen9 banned species list updated.
• • Fixed: Gen9 TR flags now check pre-evolutions if the current evolution does not have a required move flag.
• • Fixed: Ability patch reverting check updated to account for single-evolution-chain cases.
• Fixed: Showdown Set imports without a Tera Type will default to the species' first type.
• Fixed: WC9 now generates with correct SID7. Thanks @Manu098vm !
• Fixed: Associating a pk9 file to PKHeX.exe now starts up properly.
• Fixed: Form argument suggestion for Mankey & Pawniard, when evolved to max evo stage, added.
• Changed: Updated translation files. Thanks @easyworld, @Yarkis01

22/11/26 - New Update:

• Legality:
• • Fixed: Encounter->PK9 small fixes added.
• • Added: Distribution Raids (Eevee) now recognized.
• • Fixed: Hidden Ability patch checks now behave correctly.
• • Fixed: Minor tweaks to tera type and encounter recognition.
• • Fixed: Gen8 technical records are checked correctly again.
• • Fixed: Maushold / Dudunsparce %100 evolution calc fixed (From %25).
• • Fixed: Gen9 obededience level for gift box legends now checked correctly (nonzero).
• • Still Pending: Wandering/Crossover encounter locations & marks (next release!)
• Added: Form Argument now has a label if the Form combobox is not being shown.
• Added: Cheat button to unlock all fly locations, and collect all stakes (sublegendary event). Thanks @sora10pls!
• Fixed: Gen9 raid seeds can now be correctly set via the GUI.
• Fixed: Gen9 xyz coordinates now read/write correctly instead of swapping y/z coordinates. Thanks @ih8ih8sn0w !
• Fixed: Gen9 Pokédex set now applies seen forms, and the Seen All / Caught / Complete cheats now behave as intended for all entries.
• Changed: Updated translation files. Thanks @easyworld, @manu098vm, @kitcham, @egzn !

22/11/24 - New Update:
 - Introducing Scarlet & Violet Support! Thanks @SciresM, @sora10pls, @Lusamine!
 - - Initial Legality Checking is provided. Please refer to the forums when reporting legality issues for SV parsing.
 - - Save Data is similar to SW/SH; a pokedex, trainer, inventory, Raid, and block data editor are provided.
 - - Encounter legality has been reverse engineered & modeled to pre-compute possible met locations for overworld interactables.
 - Added:
 - - Gen9 SV wild encounters are now generated with RNG patterns matching the game. Thanks @Lusamine !
 - - Gen9 SV zone unlock cheat to fly to all locations. Thanks @sora10pls !
 - - Gen9 Tera Type is indicated on the Stats page as well as mini sprite previews. Clicking the Original label will toggle the original type.
 - - Gen9 Obedience Level tracks the level the entity arrived with the current handler.
 - - Gen4 Ranch support extended. Thanks @Zazsona !
 - - Ribbon Editor now sorts and highlights valid ribbons that can be applied.
 - Changed:
 - - Gen3/4 LCRNG reversal algorithms improved (50x faster!). Thanks @StarfBerry (Parzival)!
 - - Display precision of Height/Weight float values now shows a round-trip equal value instead of potentially truncating decimals.
 - - Clicking stat labels now changes nature amplification. Refer to the shortcut list for more info.
 - - Settings window can now be resized.
 - - Gen3 mGBA saves with new RTC footer now are recognized correctly. Thanks @Bl4ckSh4rk !
 - Fixed:
 - - Too many things to list! Thanks everyone who has highlighted issues / contributed fixes in the past 2.5 months!