PKHeX

21/04/01 - New Update:

• Legality:
• • Added: Generation 8 Overworld RNG seed legality. The wandering encounters have detectable origins!
• • Updated: Mystery Gift & GO Legality encounter data.
• • Changed: HOME gifts are now allowed with SID > 0.
• • Changed: Updated Ribbon rules for Master Ribbon & non-mythical legends.
• • Changed: Gen3 Shadow Pokémon now generate with correct shadow lock data.
• • Fixed: Gen6/7 Form Argument values are now handled correctly. Thanks @Lusamine!
• • Fixed: Gen3 ability bit mismatching rules for in-game trades have been fixed.
• Added: Gen8 Affixed Ribbon/Mark can now be changed in the Ribbon Editor.
• Added: Gen7 LGPE now shows Alolan form Height/Weight records in the Pokedex.
• Added: Hovering over MGDB and Database slots now shows a summary of the data.
• Added: Hovering over a box/party slot now shows some legality origins of the data.
• Added: Bulk Legality analysis now flags duplicate HOME tracker values.
• Added: Block Editor can now be used for gen5-7 saves to change more values directly.
• Added: Gen3 battle video data can now be imported via drag-drop (no BV3 exporting currently via GUI).
• Changed: Gen3 save files for RS/E/FRLG are now treated as separate classes.
• Changed: Minor internal refactorings to improve performance.
• Fixed: Gen6 event flags now are indexed correctly. You shouldn't notice any difference.
• Fixed: PKM conversion from future -> Gen1/2 now retains IV proportions correctly.

21/01/30 - New Update:

• Legality:
• • Updated Mystery Gift & GO Legality encounter data.
• • Fixed: Matching encounters where a PKM can be one of many types of encounters (based on its current values) has been improved.
• • Fixed: Gen4 HM move recognition has been fixed. Oops!
• • Added: Gen8 Weather Permissions for Wild Area Static Encounters is now present in metadata (Mark values permitted). Thanks @Lusamine!
• • Added: Gen1 Verbose legality outputs now include the met location (even though it is never stored) based off the matched encounter.
• • Changed: Gen2 Headbutt data is now initialized & stored more efficiently.
• Added: More Event Flag descriptions for past generation games. Thanks @CanoeHope!
• Added: Gen4 Battle Revolution saves can now specify the TID/SID of the currently loaded save entry to unlock Box data access in-game.
• Added: Move.cs enumeration has been added to the PKHeX.Core API.
• Added: Save File detection can now be extended by adding recognizers to SaveUtil.Handlers (via plugins or code).
• Changed: IV/EV/AV shortcuts have been adjusted slightly to add more functionality. Refer to shortcuts (IVs unchanged).
• Changed: Some internals have been refactored for better performance / clarity (string conversion, encounter matching, loading).
• Fixed: Gen8 Templating fields with a blank PKM on a not-latest DLC SW/SH will load the correct maximum species and proper PP count.
• Fixed: Gen8 Battle Ready (Battle Version) marking now updates its opacity when the battle version is changed.
• Fixed: Gen7 GameSync ID now shows up in the SAV tab, as intended.
• Fixed: Gen4 Battle Revolution saves with a deleted first slot save entry now loads correctly.

• Legality:
• • Updated Mystery Gift & GO Legality encounter data.
• • Added: Gen8 introduced new memory values; these are now checked the same as those introduced in Gen6. Still no intensity/feeling checks.
• • Added: Gen5 N's Pokémon now check for a male OT Gender.
• • Fixed: Gen1 Non-Japanese VC encounters originating from "Blue (JP)" version are now recognized as invalid. Thanks @CarlosofKalos!
• • Fixed: Gen3 Colosseum Starters are now recognized correctly (was ~1% chance of being incorrectly flagged). Thanks Loptous!
• • Fixed: Gen8 Simplified Chinese IoA trades are now recognized with the correct OT Name.
• • Fixed: Gen8 Base Friendship for HOME/certain forms is now verified correctly.
• • Fixed: Gen1/2 Events are now yielded again by the Moveset Generator (used by SysBot/ALM).
• Added: Gen8 can now deactivate all raids by holding Alt when clicking the Activate All button.
• Added: Gen7 USUM Rotom Dex affection & Loto bitflags can now be edited in the Trainer Editor.
• Changed: PKM Database loading now alerts when it fails to load the database.
• Fixed: Gen8 setting party to title screen now sets the correct empty slots if your party isn't full.
• Fixed: Gen6 Cosplay Pikachu now fetches sprites correctly when using the old 40x30 sprites.
• Refactored: Some API's and properties exposed by PKHeX.Core have been renamed/moved. Examples: AltForm/Forme=>Form, GenNumber=>Generation.
• Refactored: Implemented new C#9 language features. Some expressions in the source code are cleaner and easier to maintain :)

20/11/28 - New Update:

• Legality:
• • Added: Pokémon GO Legality checks, including date-range legality checks. Thanks @Lusamine & @sora10pls!
• • Added: Nickname checks for Generation 1 in-game trades. Thanks @ShadowMario3!
• • Added: RibbonMasterRank permissions now allow the updated species list. Thanks @Bappsack!
• • Fixed: Ability Patch edge case for changing forms (ex. Landorus) where the current form does not have a Hidden Ability.
• • Fixed: Gen8 Wild encounters with levels above 60 are now required to match the encounter's level.
• • Fixed: Gen8 symbol encounters incorrect location ID hash fixed. Thanks @sora10pls!
• • Fixed: Added Frostpoint Field for dens 175/176.
• Added: Shiny Sprites for Crown Tundra. Thanks @msikma + github.com/msikma/pokesprite!
• Added: Fused Calyrex slot viewing.
• Added: More Gen4 Event Flags. Thanks @zzzzRuby & @ShadyRelapse-PP!
• Changed: KChart now shows the "Native" state for all Armor/Crown natives in addition to the mainland natives.
• Fixed: Clearing a box other than the first box on a blank save file now clears the box... as intended. Thanks @Lusamine!
• Fixed: Gen8 Yamask-1 and Runerigus now show all possible FormArgument values. Thanks @sora10pls!
• Fixed: Gen1 Daycare slot is no longer marked as active when exporting a save file with an flagged-empty daycare.

20/10/31 - New Update:

• Legality:
• • Added: Gen8 static encounters now permit more met locations (roamers, strong encounters). Thanks @Lusamine & @ReignOfComputer!
• • Fixed: Gen8 breeds of Gen3 Starters and Porygon now allow the Gen8 wild balls.
• • Fixed: Gen8 unavailable Alolan evolutions are now recognized correctly.
• • Fixed: Gen8 Keldeo now requires a Fateful Encounter Flag.
• • Fixed: Gen8 Calyrex fuse-unfuse TR flag edge case is handled correctly, allowing Agility and fused-TR flags when unfused.
• • Fixed: Gen6 Friend Safari Vivillon is now recognized correctly.
• • Fixed: Gen3 Birth Island Deoxys is now disallowed for Japanese Emerald.
• • Fixed: Nicknames can now be set for Gen6+ EncounterTrades that did not originally have a nickname, when in Gen8 format.
• Added: Can now control-click the Shiny button to force a Star shiny, and use .PID=$shiny1 in the batch editor for the same effect.
• Added: Gen8 now has more block key labels for CT content, like event flags and important stored values. Thanks @CanoeHope, @sora10pls!
• Fixed: Gen8 Nidoran♂/♀ strings no longer result in ? for the gender symbol.
• Fixed: Gen8 Registering new Pokédex entries on setting a PKM will set female gender if appropriate instead of skipping gender set. Thanks @xXAquaNightXx
• Fixed: Gen8 CT raid den list is now clamped at the valid amount of raids. All unused dens are hidden. Thanks @Leanny!
• Fixed: Stat tooltips for nature (+/-) now show on both StatNature and Nature. Thanks @ReignOfComputer!
• Changed: Dropping a PKM file into the PKM Editor will now try to adapt it to the save file (Handling Trainer details), reducing legality issues.
• Changed: Updated Chinese translations. Thanks @easyworld!

20/10/24 - New Update:

• Introducing Crown Tundra support! Thanks @SciresM, @sora10pls, @architdate, @Lusamine, @Bappsack, and @ReignOfComputer for troubleshooting prior to release!
• Legality:
• • Changed: New checking rules for all added content in the latest DLC.
• • Added: More Gen1/2-era Event Data has been added, along with shiny checks. Thanks @ShadowMario3!
• • Fixed: Gen5 PID bit checking for static encounters now gets flagged correctly. Thanks @LegoFigure11 && Princess Emily#4650!
• • Fixed: Gen3 ability bit checking is now done for Gen3 format PKM files.
• Added: Crown Tundra Raid Seed / Detail editor; separate from the mainland raids.
• Added: Crown Tundra Pokédex editing is now available in the same Pokédex editor. Keep in mind that the game uses the first dex that has the Species-Form.
• Changed: Suggested encounters now try to match the current AltForm. Thanks @CScorpion-h!
• Changed: Nullable compiler checks enabled for PKHeX.WinForms; all sub-projects now have this feature enabled.
• Updated: Spanish GUI localization files updated. Thanks @XxPhoenix1996xX!

• Added: Pokémon Stadium save file support!
• • Supports all 3 game types: Pocket Monsters Stadium, Pokémon Stadium, and Pokémon Stadium 2.
• • Added a new PKM format: SK2. Special format used by Stadium 2, different from PK2.
• • Added a team viewer for registered teams; each slot on the team can be viewed into the PKM Editor.
• • Due to endianness inconsistencies with emulators and storage media, PKHeX will automatically save-swap endianness for these saves!
• • With the addition of Stadium support, every playable game that stores PKM data can now be edited!
• Legality:
• • Refactored: IEncounterable objects use inheritance rather than having a single base class for each type.
• • Refactored: EncounterSlot objects are now pre-computed by another project in order to simplify data loading.
• • Added: Gen1/2 GB Era event data is now recognized for most events that were distributed. Thanks @ShadowMario3!
• • Added: Gen8 Affixed Ribbon is now legality checked. The value can be changed in the Extra Bytes editor.
• • Fixed: Gen8 HOME gifts are now disallowed from having a TSV of 0.
• • Fixed: Gen8 PIDs for Mystery Gifts are now generated correctly, and are verified by the legality checks.
• • Fixed: Gen8 Shared Egg moves are now verified correctly. Thanks @Lusamine!
• • Fixed: Gen8 Gigantamax Forms are now correctly prevented for special forms like Cap Pikachu.
• • Fixed: Gen8 transfers from Gen7 without nicknames now re-sync their names. Mismatched Language-NotNicknames are now flagged. Thanks @Lusamine!
• • Fixed: Gen7 transfers from VC now generate with the official PID creation method. Star shinies are double shinies!
• • Fixed: Gen4 French Egg names are now recognized correctly. Thanks @ReignOfComputer!
• • Fixed: Gen4 Korean Arcanine PCD now generates correctly. Thanks @Lusamine!
• • Fixed: Gen3 Winning/Victory ribbons are now verified. Thanks @Atrius97!
• • Fixed: Gen3 Artist ribbon no longer requires a Master ribbon in any contest due to Link Contests. Thanks @sarahlicity!
• • Fixed: Gen3 Shadow Teddiursa is now treated as a "Gift", which only allows it being in a Poké Ball (forced capture, no other balls).
• • Fixed: Gen2 eggs are now allowed to have Pokérus.
• • Fixed: Gen1 level up moves are now allowed on PK2s with met data when using Stadium 2. Thanks @MrPerson0!
• • Fixed: Gen1 Magnemite Types can now have "Steel" as a valid type when using Stadium 2. Thanks @MrPerson0!
• Added: Save Files with different revisions (DLC patches) now indicate the patch version they were saved with.
• Added: Catch Rate is now shown in KChart. Thanks @sora10pls!
• Added: Hidden Power's move power is now shown next to the type. Thanks @soopercool101!
• Added: Gen8 SWSH Block Labels have been added for Restricted Sparring. Thanks @CanoeHope!
• Added: Gen7 LGPE catch count records can now be edited in the Pokedex Editor. Click labels to min-max the counts. Thanks @sora10pls!
• Added: Gen4 Underground Items are now editable. Thanks @egzn!
• Changed: Default TID/SID for Gen7+ blank save files is now 123456 (SID 1234).
• Changed: Blank Save files will try to initialize with the current save file's language. For Japanese saves, the blank OT will be ＰＫＨｅＸ if possible.
• Fixed: The Gen6 font file will no longer throw errors under certain scenarios. Thanks @foohyfooh!
• Fixed: Gen1 Pikachu Beach score editing reads & writes correctly now. Thanks @ShadowMario3!
• Showdown Set Imports:
• • Importing to a Gen8+ format will retain the specified IVs and not Hyper Train them. Thanks @rat01!
• • Importing a set to Gen1/2 format will try to set the EVs to max (65535). Thanks @soopercool101

20/08/07 - New Update:

• Legality:
• • Added Zarude and Shiny Celebi event data.
• • Changed: Payapa berry is now recognized as a legal held item in Gen8.
• • Changed: XD antishiny logic simplified slightly. Thanks Admiral-Fish!
• Added: Gen8 Inventory editing now preserves and shows the "NEW" flag.
• Added: Clicking on the Battle Version / Version sprite on the OT tab will now jump to the Met tab and drop-down the corresponding list.
• Added: Gen4 Pokewalker editing now has a GUI in the Misc Edits. Thanks @PlasticJustice!
• Fixed: Resizing the recent SaveFile Folder browsing now displays the window correctly for the all-saves tab.
• Changed: Spanish translation updated. Thanks @ajtudela!

20/07/18 - New Update:

• Legality:
• • Added latest HOME gifts (Shiny Zeraora)
• • Handled GMax state toggling edge cases.
• • Fixed: Gen2 Dizzy Punch egg recognition, DP Rotom egg recognition.
• • Fixed: Gen3 event gift encounters should now check the allowed Versions.
• • Fixed: Gen8 Memory Check for "Defeated Strongest Trainer" now no longer flags Skillful Battler ribbon.
• • Fixed: Den Detail Exporting no longer throws an exception.
• Fixed: Gen8 Generating encounters from the Encounter Database will now set the Stat Nature value.
• Fixed: Gen4 save file detection should now work better for new saves.

20/06/22 - New Update:
 - Legality:
 - - Handled edge cases from various reports, and added the event gift data from the recent events.
 - - Fixed: Verification for Neutral nature mint, IoA hatch location, Galarian Slowbro, raid Hidden Ability, Master Rank ribbon.
 - Added: SWSH save file size recognition for 1.0 saves that were directly upgraded to 1.2 (skipped 1.1 unused block additions).
 - Added: Urshifu-1 Gigantamax form now can be toggled in the Pokédex editor. Thanks @sora10pls!
 - Fixed: Raid details now save correctly when clicking Save, and show the correct amount of raids.
 - Changed: Spanish and Chinese translations have been updated. Thanks @XxPhoenix1996xX, @easyworld, @gjfkkk!

20/06/19 - New Update:

• Introducing Isle of Armor support! Thanks @SciresM, @sora10pls, @architdate, @Lusamine, @Bappsack for troubleshooting prior to release!
• Legality:
• • Added: New checking rules for gaining/losing the ability to Gigantamax.
• • Added: New checking rules when a past-generation-origin Pokémon's battle version has been set in order to participate in ranked.
• • Changed: New checking rules for new Pokéball inheritance, now that Safari and Sport balls can be obtained for regular use.
• • Changed: New checking rules for new Hidden Ability availability, as the Isle of Armor raids have vastly simplified restrictions.
• Added: Battle Version -- by resetting a past-generation Pokémon's moves, they can participate in ranked. The game saves the version this was performed on.
• Added: Isle of Armor Raid Seed / Detail editor; separate from the mainland raids.
• Added: Isle of Armor Pokédex editing is now available in the same Pokédex editor. Keep in mind that the game uses the first dex that has the Species-Form.
• Added: Isle of Armor trainer records (2 new stats are tracked).
  ===
• Legality:
• • Added: Fullness checking rules.
• • Fixed: Gen8: Level comparison for down-leveled raids has been updated to reflect game behavior. Thanks @Lusamine!
• • Fixed: Gen6: Removed edge case static encounter Kecleon that was mismatching a dexnav wild encounter. Thanks @KR1dude!
• • Fixed: Gen5: Contest stats are now verified rather than ignored.
• • Fixed: Gen4 Tower ribbons are no longer recognized as valid on Gen5 origin Pokémon.
• • Fixed: Gen8 Master Rank ribbon is no longer recognized as valid on Pokémon that can't participate in ranked.
• Added: Generic [Block Editor] now exposes Gen5-Gen7 save files so you can edit many properties directly from a PropertyGrid.
• Added: Gen8 Box Backgrounds are now displayed and can be changed from the Box Layout Editor. Thanks @sora10pls!
• Added: Loading a new save file will ask for confirmation if the currently loaded save file hasn't been saved yet.
• Added: Battle Tree scout editor. Thanks @sora10pls!
• Added: AHTB (hash) names can now be loaded into the block editor via a text file located in the same folder as the executable.
• • This is a research feature; only a few people need this.
• Added: Gen3 Chinese Event Flag localizations. Thanks @kamisama6866!
• Changed: Updated Spanish localization. Thanks @XxPhoenix1996xX!
• Changed: IVersion and IGeneration are now implemented into IEncounterable.
• Changed: Dynamax Level is now automatically set to 10 (if appropriate) when importing a Showdown Set. Thanks @Mikewando!
• Changed: Loading a detected save file is now twice as fast.
• Fixed: Sorting Boxes or Modifying Pokémon via the shortcut dropdown will no longer add to trainer stat records or the Pokédex.
• Fixed: Gen6 GameSync ID is now displayed rather than hidden. Thanks @sora10pls!
• Fixed: Gen6 XY Trainer Nickname is now set correctly, rather than truncated.
• Fixed: Gen4 Save Files will now correctly detect the correct save data to edit, rather than the backup. Thanks @Ammako!
• Fixed: Gen3 Ruby/Sapphire trainer editor no longer shows unavailable fields like BP.
• Fixed: Gen2 Save loading should no longer incorrectly recognize some save files as Korean.
• Fixed: Requests for setting square shiny for past-generation-origin Pokémon will now be honored (if allowed), rather than skipped.

20/04/14 - New Update:

• Legality:
• • Added: Latest raid news data.
• • Fixed: HOME gifts now recognized.
• • Fixed: Antishiny Colosseum/XD spreads are recognized better for various gifts.
• • Fixed: Some unavailable evolution cases are now recognized correctly.
• • Fixed: Silvally Pixie Plate is now recognized correctly.
• • Fixed: Gen8 Raid downleveling thresholds are now recognized correctly.
• • Fixed: Gen8 Link trade eggs are now allowed to have OT memories prior to hatching (...)
• • Fixed: Gen8 Chinese2 language in-game trade strings are now recognized correctly (not a copy of the other Chinese strings).
• • Changed: Gen3/4 in-game trade met levels are now accurately restricted to their obtainable minimum level. The PID check now works.
• • Changed: Gen8 static (gift) encounters now verify specific ability indexes.
• Added: Batch Editor $suggest for EggDate/MetDate (copies the other).
• Added: Gen8 HOME tracker control can now be hidden (same as PID/EC) if the Hide Secret Values setting is set.
• Added: New setting to copy the stat-nature to the behavior (original) nature when importing a Showdown Set.
• Added: New setting to force large sprites for past generation games. Old sprites will eventually be removed!
• Changed: Past generation sprites will now use the larger sprites from Gen8. Opt out (for now) with the setting described above.
• Changed: Met Location combobox has been widened to show more text (Gen8's long met locations).
• Fixed: Game Origin markings in PKM Editor now show the correct game lump sprite.
• Fixed: BK4 file recognition has been fixed.

20/03/14 - New Update:

• Added: Shiny Sprites for the new 68x56 box sprites. Thanks @msikma! https://github.com/msikma/pokesprite
• Legality:
• • Added: Latest raid news data.
• • Fixed: Shared egg moves are now allowed for past-gen transfers.
• • Fixed: Gen8 unavailable evolutions (like Alolan Raichu) are now recognized correctly. Thanks @sora10pls!
• • Fixed: Gen8 Pumpkaboo/Gourgeist Hidden Abilities are now restricted correctly in Gen8. Thanks @Lusamine!
• • Fixed: Gen8 Alola starters are now correctly banned from inheriting balls (only Poké Ball). Thanks @Lusamine!
• • Fixed: Gen8 Past gen species are now correctly allowed to inherit balls using Gen7 and prior rules. Thanks @Lusamine!
• • Fixed: Gen3 Antishiny trainer Pokémon mechanism for XD is now checked correctly. Thanks @ijuintekka!
• • Fixed: Gen4 HGSS egg hatch locations now allow the Battle Fontier. Thanks @sora10pls!
• • Added: Gen3/4 Min levels for in-game trades are now enforced.
• • Fixed: Gen3/4/5 ShinyXor8-15 Antishiny mechanism is now checked correctly. Thanks @Lusamine!
• Added: Current Box is now used when loading SW/SH save files.
• Added: Box manipulations (right click the Box tab) now has a Heal All manipulation (like the Pokécenter heal).
• Added: Gen8 Indicator for dummied moves. Thanks @sora10pls!
• Added: Gen8 now exposes NPC and Friend League card accessors in the block editor.
• Added: Gen3 More event flags. Thanks @Kermalis, @FeralFalcon!
• Fixed: Gen8 Showdown set parsing for Toxtricity now behaves correctly with Showdown's latest set syntax updates.
• Fixed: Gen6+ Loading a version-less PKM will no longer copy PID->EC. Only for Gen3/4/5 origins.
• Fixed: Gen8 converted PK2/PK7 files are now healed.
• Fixed: Gen8 affection fields are now hidden (properties don't exist in PK8 format).
• Fixed: Gen3 PC Item list no longer lists key items twice. Thanks @Kermalis!
• Changed: Gen8 now only sets the display form if it is not already owned; retaining the original displayed form. Thanks @CanoeHope!
• Updated: Spanish/Chinese translations. Thanks @qhq, @easyworld, @XxPhoenix1996xX !

20/02/14 - New Update:

• Legality:
• • Added: Initial handling for HOME Transfers.
• • Note: Tracker value is currently not flagged if missing; there's a setting to enable flagging.
• • Note: Pokémon that haven't yet visited HOME do not have a tracker.
• • Note: Fake WC8 data will have to be prepared to recognize HOME gifts.
• Added: More Gen8 editable fields. Thanks @CanoeHope!
• Added: More Gen4 Event Flags. Thanks @FeralFalcon!
• Changed: Revised suggested hatch locations. Thanks @CanoeHope!
• Fixed: Gen5 Entree Forest randomization no longer causes errors. Thanks Pocket Monsters (user)!
• Fixed: Gen4 HGSS Box Wallpapers are now read correctly. Thanks @Ammako!

20/02/08 - New Update:

• Legality:
• • Added: Milcery & Toxtricity distribution data.
• • Fixed: Runerigus FormArgument handling checks updated.
• • Fixed: ORAS flute level boosts increased from 3 to 4.
• • Fixed: FRLG Unown locations are now checked correctly. Thanks @Kermalis!
• • Fixed: Gen1/2 Stadium gifts are now checked more thoroughly. Thanks @FeralFalcon!
• Added: Gen8 Team Slots are now recognized and locked for editing. Thanks Anubis, @architdate, @Wanderer1391!
• Added: Gen8 Block Info editor now has more blocks labeled.
• Added: Gen8 Raid editor now shows the raid type enumeration, and more cleanly sets flags. Thanks @3096 & @slp32!
• Added: Gen8 setting to a slot will now increment game records. Thanks @CanoeHope!
• Added: Gen8 Rental Team reading. Thanks @architdate!
• Added: Gen4 Togepi egg gift event constant. Thanks @asterysx!
• Changed: Gen8 Block Info editor now sorts blocks by current value.
• Changed: Gen7 default hatch location is now Paniola Ranch instead of one of the routes. Thanks @CanoeHope!
• Changed: Tab indexes (pressing tab to jump between controls) now behaves more fluidly in the main window.
• Changed: Save Editor buttons (like Trainer Info, Pokédex) are now sorted alphabetically for easier locating.
• Changed: Mystery Gift - Can now delete multiple Gift Received flags at a time. Thanks @murrty!
• Changed: Updated Korean translation. Thanks @yurical!
• Fixed: Gen8 Trainer Editor no longer screws up game language.
• Fixed: Showdown Sets are now exported more accurately (hyper training / foreign species names).

20/01/26 - New Update:

• Legality:
• • Added: Form Argument legality checks. Alcremie, Runerigus, Yamask, Hoopa, and Furfrou. Thanks @CanoeHope!
• • Added: More static encounter locations.
• • Fixed: Footprint ribbon is now checked for Gen8.
• • Fixed: Slowpoke-1 Hidden Ability is now banned, and bred Mimikyu now allows Hidden Ability.
• • Changed: A little bit of the program's internal structures have been tweaked for performance.
• Added: Gen8 Block Research/Export/Import tool, with direct block edits.
• • Can swap in a full Fashion block, for example. Or, edit your title screen to show 6 Magikarp!
• • Edit things directly! Known block objects can be selected, and all exposed Properties can be changed.
• • Can compare two saves to see what blocks/values changed.
• Added: Gen5 Subway score editing. Thanks @egzn!
• Added: More event flag/const have been documented. Thanks @FeralFalcon & @asterysx!
• Fixed: Internal API changes for more Thread safety. (People reuse PKHeX.Core in multithreaded applications, and the Rand utility didn't work correctly).
• Fixed: German translation no longer misbehaves for certain ribbons.
• Fixed: Handling for Form Arguments is now performed correctly. Will no longer clear for Runerigus on edit.
• Fixed: Gen7 LGPE Dumping of Go Park Entities with invalid file names are now sanitized before saving. Thanks @xJam-es!
• Fixed: Gen4 HGSS Pokéwalker course unlock cheat now works as intended.
• Changed: Gen8 SWSH Block reading/writing is now much more efficient.
• Changed: Gen7 LGPE Awakening Values are now applied more liberally via Control-click Random. Only an attack IV of 0 will not add AVs. Thanks slp32!
• Changed: Spanish Translation updated. Thanks @egzn!

20/01/10 - New Update:

• Added: Gen8 Support for save data from the latest game patch.
• Legality: More handling for new additions.
• Added: Move#_PP $suggest for batch editor.
• Added: Click the PP label to refresh PP counts.
• Added: Setting to disable sounds on save file load and legality checks (nuisance).
• Fixed: Gen8 Mimikyu Busted form now shows up in Pokédex editor.
• Fixed: Gen4 Event Constants are now read correctly.
• Fixed: Disabled pkm slot glow effect will no longer leave the frosted effect behind.
• Changed: GUI translation (winforms only) files moved to WinForms project (no longer in PKHeX.Core). Still need translations ;)

19/12/26 - New Update:

• Legality:
• • Added: PP Count verification, Egg TR/StatNature checks, etc.
• • Added: More static encounter locations.
• • Added: Handling for downleveled raid content, and location crossover comparisons for wild encounters.
• • Changed: Encounter yielding pattern for Gen8 is now slightly different from the one used for Gen5-7 (now yields more).
• • Fixed: EvolutionTree regressions have been resolved. Please report any further issues with legality!
• Added: Gen8 simple Raid Den parameter editor.
• Added: Gen8 Watts are now editable in the Trainer Data editor. Thanks @Atzgi!
• Added: Gen1 Yellow Pikachu Beach score editing
• Changed: The Friendship and Form row in the PKM editor has been split, and the Ability row has been moved up.
• Changed: Blank Gen2 saves now act as Virtual Console blanks rather than GB Era blanks.
• Fixed: Gen8 Box edits made after using a popup save editor (eg. Trainer Editor) are now written correctly.
• Fixed: Gen8 Ingredients are now allowed as held items. Thanks @Narithegreat!
• Fixed: Gen8 QR Code image generation now works properly with the larger sprites.
• Fixed: Gen8 Trainer Card # (3 digits) now pads with \0 instead of 0, allowing for non-3-digit values.
• Fixed: Gen8 Traditional Chinese species names are now in the program. Thanks @iiippppk!
• Fixed: Gen4 PCD cards now export correctly with their PGT payload encrypted, rather than as the WC4 format.
• Fixed: Daycare/GameSync values from the previously loaded save are no longer erroneously applied to a new save if the caret is in the textbox.

19/12/09 - New Update

• Legality:
• • Updated: Banlist now checks for unavailable forms and unavailable hidden abilities.
• • Changed: Another round of legality check updates. Thanks @iiippppk, @BetaLeaf, @crzyc, @Bappsack & @ReignOfComputer
• • Changed: Rewrote EvolutionTree and MemoryVerifier to better handle the new rules that were introduced in Gen8.
• • Added: Gen6 In-game trades are now checked for their Memory values.
• Batch Editor:
• • Added: $suggest for Ball, sets a legal ball, with preference for color matching.
• • Added: $shiny0 for square shinies.
• • Added: $suggestAll for all TR moves
• • Added: $suggest for all legal Ribbons, and $suggestNone to remove all but required ribbons.
• Changed: Gen7 LGP/E now uses the large box sprites. Thanks @sora10pls!
• Added: Alcremie can now specify the topping type (next to form).
• Added: Click the Nature/StatNature labels to copy the other's value.
• Added: Gen8 Trainer Card's trainer number can now be edited via the Trainer Editor.
• Fixed: Gen5 CGear Background import from file now works. Thanks @CyraFen!
• Fixed: Gen3 Blank Saves now behave correctly when setting a slot.
• Fixed: VC origin sprite (GameBoy) now displays properly.

• Legality:
• • Updated with detection for numerous encounter types. There's still a few stragglers and mechanics left to handle.
• • Thanks to everyone who has helped report issues & contributed updates!
• Added: Shift click the Shiny button to yield a Square (ultra) shiny, regular click for default Star type.
• Added: Sprites now display for Square (ultra) shiny vs regular Star type.
• Added: Technical Record popup window (below Relearn Moves) to flag which move has been instructed. Shift click to apply current move flags.
• Added: Batch Editor $suggest for Nature/StatNature copies the other value.
• Added: Gen8 League Card (Trainer Card) name can now be edited in the Trainer Editor.
• Added: Gen8 Pokédex now can set all Battled Count via the Modify button dropdown.
• Fixed: Gen8 Pokédex no longer clears Battled Count when updating flags.
• Fixed: Gen7 save corruption fixed.
• Fixed: Gen6 box names are no longer truncated.
• Fixed: Gen4 daycare slot reading fixed.
• Fixed: Party slot dragging to same slot no longer deletes the next slot.