Grand Piece Online Update Log — October 16 Balance Update, Halloween Event Part 1 and Update 13
Latest GPO update
Latest patch: October 16, 2026, ~22:02 UTC — confirmed by Roblox's place-update timestamp (the 25th since September 2). Full notes below.
Latest itemised update: Balance Update — October 16, 2026: the Verity pet (Legendary, from trick or treating at level 325), three Epic Candy Shop costumes, the Traveling Merchant Snail Phone, Trading Signs, filters in the trade window and skill indicators — notes and live values. Before it, Halloween Event Part 1 (October 1) brought back Trick or Treat on Spooksville with the Brand of Sacrifice and Nightfall Aura and replaced the AFK World with daily quests.
Latest content update: Update 13 — Whole Cake Part 2 (August 29–30, 2026): Blossom Falls, the Dragon Emperor Dungeon, the Leopard and Biscuit fruits and the Thunder Club. No Update 14 had been announced when we last checked on October 16, 2026.
Every Grand Piece Online update, newest first — what shipped, what is only reported so far, and what it did to trade values. Facts here are labeled confirmed (the developers' own patch notes, verified in-game, or Roblox's own data), reported (shown in player videos, listed on the community wiki, or inferred, but not independently verified), or rumored (pre-release teasers that may not have shipped).
Post-Update 13 patches (September–October 2026)
Since Update 13, 25 more patches have shipped, each confirmed by the Roblox place-update timestamp on the public games API or, for the September 26 Mini Update, by the developers' own announcement. The developers itemised three of them — the October 16 Balance Update, the Halloween Event Part 1 and the September 26 Mini Update — and published nothing for the other 22, so treat those as post-launch fix rounds rather than new content. The game's Roblox title stayed [🐆LEOPARD🐆] Grand Piece Online until the September 27 patch made it [🔥LEOPARD🐆], and the Halloween update retitled it [🍬HALLOWEEN PT 1] Grand Piece Online. The level cap is still 675.
| Patch | Place updated (UTC) | What we know |
|---|---|---|
| UTC | Balance Update — itemised by the developers: three Epic Candy Shop costumes (13th, Beetlejuice, Scarecrow), the Traveling Merchant Snail Phone, the Verity pet from trick or treating, Trading Signs, trading filters, skill indicators, HUD tooltips, a new loading screen and handcuffs that can be lockpicked again. Full notes | |
| UTC | Unitemised — no patch notes published. | |
| UTC | Unitemised — no patch notes published. | |
| UTC | Unitemised — no patch notes published. | |
| UTC | Unitemised — no patch notes published. | |
| UTC | Unitemised — no patch notes published. | |
| UTC | Follow-up to the Halloween Event Part 1 release a few hours earlier — no patch notes published. | |
| UTC | Halloween Event Part 1 — itemised by the developers (their notes are dated October 1; the game reopened at 8:30 PM Eastern): Trick or Treat returns on Spooksville with the Brand of Sacrifice and Nightfall Aura collectable auras, four new costumes and the Tung Tung Thunder Club; daily quests replace the AFK World; Dullahan and the Halloween fishes return. The Roblox title switched from [🔥LEOPARD🐆] to [🍬HALLOWEEN PT 1]. Full notes | |
| UTC | Follow-up to the September 26 Mini Update — the developers said the same evening they were adjusting the new mobile button editor again (resize and move, common buttons shown by default). The Roblox title switched from [🐆LEOPARD🐆] to [🔥LEOPARD🐆] in the same window. | |
| UTC | Mini Update — itemised by the developers: Pretzel Longsword (Legendary sword, 3% Biscuit Commander drop), a Devil Fruit and weapon balance patch, client memory optimisations, compact HUD bars, a grip dummy and a bug-fix round. Full notes | |
| UTC | Unitemised — no patch notes published. | |
| UTC | Unitemised — no patch notes published. | |
| UTC | Unitemised — no patch notes published. | |
| UTC | Unitemised — no patch notes published. | |
| UTC | Unitemised — no patch notes published. | |
| UTC | Unitemised — no patch notes published. | |
| UTC | Unitemised — no patch notes published. | |
| UTC | Unitemised — no patch notes published. | |
| UTC | Unitemised — no patch notes published. | |
| UTC | Unitemised — no patch notes published. | |
| UTC | Unitemised — no patch notes published. | |
| UTC | Unitemised — no patch notes published. | |
| UTC | Unitemised — no patch notes published. | |
| UTC | Unitemised — no patch notes published. | |
| UTC | Unitemised — no patch notes published. The Roblox title switched from [CONTROLLER] to [🐆LEOPARD🐆] in the same window. |
Balance Update — October 16, 2026 (Verity pet, Snail Phone, Trading Signs)
Confirmed. The developers posted notes titled "Balance Update — October 16, 2026" in the official GPO Discord, with four short in-game clips. Roblox's place-update timestamp moved at ~22:02 UTC on October 16; the game's title stayed [🍬HALLOWEEN PT 1] Grand Piece Online and the level cap is still 675. Despite the name, the notes list no fruit or weapon number changes: it is new items plus a round of trading and interface features, and the notes include no code (see the current Grand Piece Online codes). Below, "the clips" means those developer videos: what we describe from them is what they show, nothing more.
Confirmed: new items — live values
Our parser recognises all five items below. An item gets a value page once there are enough settled trades to solve one; until then this table says so. Values are live from the last solve (2026-10-15 17:32 UTC):
| Item | How you get it | Value | Demand |
|---|---|---|---|
| 13th Costume | Epic. New Candy Shop costume (a hockey mask and a dark jacket in the developers' preview). | tracked, not yet priced | |
| Beetlejuice Costume | Epic. New Candy Shop costume (black-and-white striped suit). | tracked, not yet priced | |
| Scarecrow Costume | Epic. New Candy Shop costume (plaid shirt, overalls and a hat). | tracked, not yet priced | |
| Verity | Legendary pet (per its in-game item card). Trick or treating on Spooksville, level 325 and up. Can be customised at the Custom Tailor. | tracked, not yet priced | |
| Traveling Merchant Snail Phone | 500,000 Peli from the Traveling Merchant, or the Robux Shop. Opens his shop from anywhere while he is in your server. | no trades seen yet | |
Confirmed: Verity, the pet that answers questions
- How to get it: trick or treating on Spooksville (the Halloween event island in the First Sea), from level 325. It can be customised at the Custom Tailor.
- What it does: its item card reads "I know EVERYTHING! Say 'Verity' in chat to ask a question. Responses may be inaccurate… ask it to change voice if u want." In the clips it floats beside the player and answers chat questions in a speech bubble.
- Voice settings (from the clips): a voice language (English, Spanish, German, Italian or French), a speed setting and a pitch slider in semitones.
- For traders: the notes do not say whether Verity can be traded, or whether it stays obtainable after the event. Trade servers were already pre-trading it days before release, colours included. We price it here once real settled trades show up.
Confirmed: the Traveling Merchant Snail Phone
- Price: 500,000 Peli from the Traveling Merchant himself, or the Robux Shop.
- What it does: it rings while the Traveling Merchant is in your server. Equip it and activate it to open his shop from anywhere, so you no longer have to sail to the island he appeared on.
- In the clips, the server announces "Traveling Merchant has appeared at" an island (Land of the Sky, Orange Town and Fishman Cave all show up) and again when he has left. His shop lists Merchant Items with a stock count each and a refresh timer; the stock in the clip included Rare Fish Bait, SP Reset Essence, Suke, Dark Root, Golden Hook, Bomi's Log Pose and a Hoverboard. That was one developer server, so expect different stock in yours.
Confirmed: Trading Signs
The Trading Sign is an existing item; this update gives it a proper editor. Equip it and it shows what you are offering and what you are looking for, as item icons with quantities, to everyone near you.
- Up to four items per side. The editor has an Offering tab, filled from your own inventory ("Search your inventory"), and a Looking for tab, filled from the game's whole tradeable catalog ("Search all tradeable items"). Tap an item to add it; tap it again to remove it.
- Both lists use the same category tabs as the trade window (Fruits, Weapons, Wearables, Tailorable, Items, Ships, Cosmetics, Fishes) plus search.
- Custom text is optional; the clip's sign reads "REAL OFFERS ONLY!". "Save items" and "Update text" commit the changes.
- It remembers you. Your submitted items and text come back next session. Offered items you no longer own are removed, and quantities shrink if you have fewer. An unsubmitted draft survives unequipping the sign or closing the editor, but only within the same session.
Using a sign with our values: put your four offered items on one side of the trade calculator and your four wants on the other before you save. If the verdict reads lose for the other player, your sign is asking too much and will only draw lowball replies. When you walk past someone else's sign, run the same check: their want list is their opening ask, not a fair price. To find what an item is worth on its own, use the full value list.
Confirmed: filters in the trade window
- The trade window's inventory panel now has category tabs, a search box and a Filter button. Filter by rarity (All, Common, Uncommon, Rare and up to Collectable) and sort by rarity (rarest first) or by name.
- Selecting the category you are already on shows every category again. Reset Filters clears everything.
- Why it matters: sorting rarest first puts your highest-tier items at the top, which makes it quick to check what you hold against the trading tier list during a trade.
Confirmed: skill indicators
- On PC, mobile and console, supported skills now show a small ring beside your cursor with a short label. It tells you when holding a skill changes what it does (the notes name Mera's and Goro's ultimates), how long a held barrage has left, and how much travel time is left on a timed travel skill.
- It covers more skills than those examples: the developers said so, and their clip runs it across Gomu, Ope and Mera moves, the Thunder Club and the Soul Cleaver among others.
- It can be turned on or off in settings. Roblox can make it lag a little behind very fast mouse movement; that does not happen in shift-lock.
Confirmed: HUD tooltips for Haki, Evasive and Ultimate
- Hover the icon (select it on controller, hold it on mobile) to read it. Observation Haki shows training progress toward maximum mastery and the successful dodges still needed; the ring shows available dodges.
- Buso Haki shows training progress and the estimated active training time to maximum mastery (time with Buso on in modes that allow training, not counting recharge or breaks); the ring shows the current duration left.
- Evasive: when its ring is full, use it while hit-stunned to escape a combo and briefly avoid damage. It cannot be used while grabbed, and the meter refills as you take or deal damage. Ultimate shows its charge percentage and the damage still needed to fill it.
- On mobile, holding Buso or Observation shows the tooltip without activating it. Evasive activates the moment you touch it, even if you keep holding to read it.
Confirmed: everything else
- Candy Shop costumes: the 13th, Beetlejuice and Scarecrow costumes, all Epic (table above).
- Button Opacity: set the opacity of all mobile buttons in mobile button edit mode.
- Combat VFX: new floor daze and sword block clash effects.
- Loading screen: new artwork. Battle Royale, Dungeons and other modes still use First Sea artwork until theirs is done.
- Custom Tailor: the interface fits mobile screens better.
- Handcuffs: jailed players' handcuffs can be lockpicked again, which releases them from jail.
What the October 16 update means for traders (our reading)
- Verity is the item to watch. A level-325 gate and a trick-or-treat drop keep early supply thin, and trade chat wanted it before it existed. If it trades, first-week prices will run well above where it settles, as they do for most new event items.
- Signs make asking prices public. Every sign shows a four-for-four ask, so overpriced wants are easy to spot. Check them against the calculator before you counter.
- The Candy Shop costumes are adds, not headliners. Anyone with candy can buy them while the event runs, so they should trade as fillers until it ends.
- The Snail Phone helps merchant buyers. Whoever owns one can buy the Golden Hook, Hoverboard or fruit stock the moment he spawns, so expect merchant-only items to sell out faster.
Halloween Event Part 1 — October 1, 2026 (Trick or Treat, daily quests)
Confirmed. The developers posted full notes for "Halloween Event Part 1" in the official GPO Discord on October 1, 2026, during a maintenance of about three hours. The game reopened at 8:30 PM Eastern (00:32 UTC on October 2) and the Roblox title became [🍬HALLOWEEN PT 1] Grand Piece Online. No new code came with it (see the current Grand Piece Online codes). Everything below is condensed from the developers' notes and their follow-up posts the same evening. The developers' Roblox event listing for Part 1 ends on October 18, 2026 at 02:00 UTC (what that does and does not tell you about Part 2).
Confirmed: Trick or Treat is back on Spooksville
- Where: Spooksville in the First Sea, which the developers place south-west of Shells Town. Hold a candy basket and knock on doors for candy; some doors trick you instead. Spooksville and the event were optimised for better FPS.
- Jackpot Treat (new): any treat has a 3% chance to give 10 candy. Night Bonus (new): treats give 1.5x candy at night.
- Candy reset: candy was reset for this year's event, and the notes say last year's Pumpkin Basket and Candy Corn Basket were reset with it. Candy Skeletons now drop 3–5 candy instead of 1–2.
- Dullahan is rollable again while the event runs.
- Halloween fishes are back (Candy Corn Squid, Jack-O'-Bite, Skeletal Shark and Dark Skeletal Shark) and can now also be caught in the Trading Hub and the Fishing Hub. Their blueprints make the Jack-O'Rod, the Skeletal Shark Mask and the Dark Skeletal Shark Mask (1.4K at the last solve).
Confirmed: new tradable items — live values
The main GPO trading community added trade emoji for the Brand of Sacrifice, the Tung Sahur Costume and the Tung Tung Thunder Club within ten minutes of the reopen, and for the Nightfall Aura under two hours after it. Our parser recognises all seven items below. Each gets a value page as soon as there are enough settled trades to solve one; until then it says so here and on the homepage's new-items strip. Values are live from the last solve (2026-10-15 17:32 UTC):
| Item | How you get it | Value | Demand |
|---|---|---|---|
| Brand of Sacrifice | Collectable aura from tricks only — cannot be bought. Comes with The Branded title; recolorable at the Tailor. | 20K | Low |
| Nightfall Aura | Collectable aura from trick or treating, 4x more common at night; also sold by Nyx. Recolorable at the Tailor. | 19K | Low |
| Tung Sahur Costume | 500 candy (also in the Robux-shop Halloween Bundle). Wearing it unlocks the Tung Tung Tung Sahur encounter. | 1.8K | Low |
| Tung Tung Thunder Club | Thunder Club skin from the Tung Tung Tung Sahur encounter, which takes your Thunder Club in exchange. Comes with the SAHUR title. | 21K | Low |
| Frankenstein Costume | 175 candy; wearable in Battle Royale. | tracked, not yet priced | |
| Shark Costume | 175 candy; wearable in Battle Royale. | tracked, not yet priced | |
| Wizard Costume | 175 candy; wearable in Battle Royale. | tracked, not yet priced | |
- 6-hour trade lock: the Brand of Sacrifice and the Nightfall Aura cannot be traded for 6 hours after they drop from trick or treating, so the developers can review drops and ban exploiters. Both can be recolored at the Tailor.
- The Tung Tung Tung Sahur encounter: while you wear the Tung Sahur Costume with a Thunder Club in your hotbar, each trick has a 2% chance to start it. The encounter swaps your Thunder Club for the Tung Tung Thunder Club skin (own model, M1 hit effects and sounds, Tung Tung sound effects on the skills too) and gives the SAHUR title. The skin's model and M1 effects can be custom tailored; its skills use your Thunder Club tailor colors.
- Halloween Bundle: all four new costumes in one bundle in the Robux shop.
- Emoji titles for streaks while trick or treating: 🍭 for 15 treats in a row, 😱 for being tricked 6 times in a row, 🤑 for 2 Jackpot Treats in a row.
Confirmed: items back from last year's event
- Blood Scythe — 500 candy, or the Robux shop
- Candy Corn Basket — 250 candy
- Pumpkin Basket — 100 candy
- Ghost Face Costume — 100 candy
- Joker Costume — 100 candy
- Mummy Wrappings — 100 candy
- Plague Doctor Costume — 100 candy
- Lantern — 50 candy
- Pumpkin Bag — 5,000 Peli
- Haunted Seeking Pumpkin — rare drop from trick or treating
No longer obtainable: the notes say the Nightfall Half Shroud (4K, demand Low) can no longer be obtained, so the copies already in circulation are all there will be. The notes say nothing about the full Nightfall Shroud (18K).
Confirmed: daily quests replace the AFK World
- Daily Quests unlock at level 20, with objectives based on your progression. Complete three quests involving enemies, bosses, NPC quests or fishing to claim the day's rewards: EXP and drop boosts, 3–5 Race Rerolls, Dark Roots and SP Reset Essences.
- Each day has a 5% chance of a bonus random fruit below Mythical; when it shows, finishing all three quests guarantees it.
- One free quest reroll a day, more for Robux. A reroll replaces the quest and resets its progress; the rewards stay the same. Quests reset at midnight UTC, and finished rewards wait in Unclaimed Rewards until you collect them.
- Streak milestones (each day you finish all three adds one): 7 days, 10 Special Tailor Tokens; 14 days, 20 Race Rerolls; 21 days, 3 Tailor Vouchers; 31 days, one random Legendary fruit. The milestones repeat every 31 completed days while the streak keeps growing.
- Mythical fruit every 60 streak days: the notes said every 100 days, and the developers lowered it to 60 the same evening. Progress counts from when dailies unlock, but you must reach level 500 to claim it. Legendary and Mythical rewards arrive as fruit tools, ready to eat, store or trade.
- Each 31-day cycle protects 2 missed days, and designated maintenance days never break a streak. An unprotected miss resets the streak and milestone progress; rewards and titles already earned stay.
- Permanent streak titles at 7, 31, 75, 100 (Centennial), 200, 300, 365 (Annual), 500 (Quincent), 730 (Two-Year) and 1,000 days (Millennium).
- The AFK World is gone. Per the developers' September posts, the NO LIFE title stays on accounts that already have it but can no longer be earned.
Confirmed: systems, quality of life and bug fixes
- Factory and Gladiator: better battle performance and reliability, and easier-to-read damage and rank displays.
- Notifications: better positioning and smoother transitions.
- Factory Raid: raids no longer end before the lava has fully risen. The notes add "many more" fixes without listing them.
What Halloween Part 1 means for traders (our reading)
- The two auras are the chase items. Both are Collectable, but the Brand of Sacrifice only drops from tricks and cannot be bought, while the Nightfall Aura is 4x more common at night and Nyx sells it. Expect the Brand of Sacrifice to hold a premium once both settle. Prices from the first days, while the 6-hour lock holds supply back, are not where they will land.
- The Nightfall Half Shroud is now a fixed supply. Items the developers retire tend to firm up slowly rather than jump; the changes feed will show whether it moves.
- The skin costs a Thunder Club. Every Tung Tung Thunder Club that comes out of the encounter takes a Thunder Club (20K) out of circulation, a small but steady sink on the Update 13 weapon.
- More fruit supply, slowly. Daily quests hand out a Legendary fruit every 31 streak days and a Mythical every 60 (to level-500 players), plus a 5% daily chance of a fruit below Mythical, all as tradable fruit. Per player it is small, but it lands across the whole active player base: mild downward pressure on Legendary fruit values over months, not days.
- Last year's items are buyable again. The Blood Scythe, the 2025 costumes and the baskets cost candy again while the event runs, so anything that traded at an off-season premium should drift down until it ends.
Mini Update — September 26, 2026 (Pretzel Longsword, balance patch)
Confirmed. The developers posted full notes for a "Mini Update" in the official
GPO Discord on September 26, 2026 (17:35 EST). The game closed for maintenance at
about 18:00 EST and reopened at 18:13 EST (22:13 UTC); a follow-up patch landed
on September 27 (~05:08 UTC). A new code, FREE_Drops8 (24 hours
of 2x drop rate), was posted the same evening; it had expired by October 4 (tested in-game). Everything below is condensed from the
developers' notes.
Confirmed: new weapon — Pretzel Longsword
The Pretzel Longsword is a Legendary sword dropped by the Biscuit Commander (the Whole Cake boss added in Update 13) at a 3% drop chance. It was teased three days earlier as "arriving this weekend". It is tracked, not yet priced: our parser already recognises it in trade messages, and it gets a value page the moment enough settled trades exist to solve one — until then it shows as "no value yet" on the homepage's new-items strip. Early offers for a 3% boss drop are usually thin and swing hard; treat any number you see quoted in the first week as a guess.
Confirmed: balance changes on tracked items — live values
The patch touched 12 items on our value list. "Net" is the developers' own buff/nerf marking; values and demand are live from the last solve (2026-10-15 17:32 UTC), so this table shows how the market is actually reacting, not a prediction.
| Item | Net | What changed | Value | Demand |
|---|---|---|---|---|
| Dragon | Nerf | Draconic Cataclysm damage reduction now only applies while grabbing an enemy | 29K | Stable |
| Mera Mera | Mixed | Hiken reworked (cheaper, higher cap at ~850 mastery, but 10s cooldown and ~20% lower damage at 600 mastery); Firefly and Flame Pillar buffed; Entei hitbox 15% smaller | 838 | Low |
| Smoke | Mixed | White Rocket flight up to 20s in combat with stamina drain; White Barrage hitbox and range up, slower startup; White Fog blurs targets; White Out damage −20% | 547 | Low |
| Zushi | Buff | Gravity Push windup halved, damage scaling +20%, cap 107 → 175; stun 1 → 0.8s | 642 | Stable |
| Yuki | Buff | Snow Blizzard scales with mastery (up to +30%); Snow Bunny Turret placeable mid-air, final shot guard-breaks; Snow Reformation takes 50% less damage | 626 | Low |
| Pika | Buff | Light Ray now lands where the beam hits from high ground (up to 300 studs above) | 2.9K | Low |
| Hie | Nerf | Ice Stomp freeze 2 → 1.7s | 833 | Stable |
| Tori | Mixed | Hybrid and full-form flight +15% speed; Talon Barrage damage −15% | 3.5K | Stable |
| Yami | Buff | Black Hole stamina drain −5%; Black Vortex stamina cost halved, hitbox −10% | 997 | Low |
| Thunder Club | Nerf | Direct Destruction grab now blockable; M1 scaling down (~71 → ~65 at 1000 Strength with Haki); Thunder Bagua stun 1 → 0.8s | 20K | Stable |
| Inverted Spear Of Heaven | Mixed | Chain Reel damage per hit doubled (same total), reel time 4 → 2s | 21K | Low |
| Flower Bouquet | Buff | M1 hitbox increased to match Inverted Spear of Heaven | 41K | Low |
Also changed, but not on our value list (no settled trades to price them): Bomb, Horo, Helix Skewer, Golden Hook, Cupid's Harp and Fishman Karate (Brick Fist cooldown 8 → 10s). Bomb's Explosive Mines can no longer be perfect-blocked or triggered by party members; Horo's Soul Unbound gained 20% speed, 40% range and mastery-scaled M1s; Helix Skewer's Wringing Vortex got iframes and a shorter windup for 15% less scaling; Golden Hook's M1 reach and Cupid's Harp's mobility were buffed.
Confirmed: systems and quality of life
- Client memory — optimisations saving roughly 100–300 MB depending on device and inventory size, aimed at mobile.
- Compact bars (shift lock) — health and stamina shown beneath the shift-lock cursor with numbers inside, on all devices; disabling shift lock restores the normal HUD.
- Grip dummy — spawns with the PvP pads beside the testing dummies; knock and grip it to test grips, it respawns and does not count toward grip progress.
- Dragon Claw stance now on Y instead of holding T; Karoo can be fed while moving out of combat.
- Mobile — reworked button editor (move, resize, choose which buttons show, unsaved-edit protection), tighter HUD spacing, smaller Spend Points and Claim buttons.
- Server joining — players are now steered toward newer servers rather than days-old ones, to cut First and Second Sea lag.
Confirmed: bug fixes that matter to traders
- Trade verification — more cases of players being kicked with "rejoin trade verification" fixed (a first pass shipped September 24).
- Trading — an error message that stopped some players trading at all is fixed.
- Also fixed: Biscuit Slider carrying players, Immortal Thistle spectating lock in Battle Royale, the Logia bar in Battle Royale, server list refresh, aimed skills after an uptilt, the mobile stat UI overlap, "and many more".
Recap: already live before this patch
- Timed event bosses drop a Devil Fruit — Hawk Eye, Roger, Soul King and the Radiant Admiral now give a fruit to the MVP (most damage dealt), rolled at normal rarity rates and counting toward pity, like dungeon fruit drops.
- Akshan (solo) HP 25,000 → 9,000; arena modes apply combat tag automatically.
- Earlier in the week: the Battle Royale NPC interaction bug (September 21) and the "rejoin trade verification" kick (September 24) were fixed.
What the Mini Update means for traders (our reading)
- Dragon nerfed, still the chase item. Dragon lost the blanket damage reduction on Draconic Cataclysm. A single defensive nerf rarely moves a Mythical's trade value on its own; the changes feed will show whether demand follows.
- Buffed mid-tier fruits are the ones to watch. Zushi, Yuki, Yami and Pika all got straight buffs; historically a clear buff on a cheap fruit lifts its demand for a few weeks before supply catches up. Mera and Smoke were reworked rather than buffed — expect opinion, not a one-way move.
- Thunder Club nerfed — the newest tracked weapon lost M1 scaling and a blockable grab, four weeks into price discovery. It is the row most likely to actually move.
- More fruit supply. Four timed event bosses now hand a rolled fruit to the MVP, on top of dungeon MVP fruits and the permanent 2x weekend rates. Over time that is downward pressure on mid-rarity fruit values; the top Mythicals are gated by rarity rolls and pity, so they are least exposed.
- Pretzel Longsword is a 3% boss drop, not a dungeon-run reward — the same supply shape as the Thunder Club, which took about a month to settle. Expect early asks well above where it lands.
Update 13 — Whole Cake Part 2 (August 29–30, 2026)
GPO's biggest release of 2026 is live, and it is officially Update 13: the developers' Roblox event page for the release is titled "UPDATE 13" and headed "GPO WHOLE CAKE? PART 2? UPDATE". The Roblox place updated on August 29, 2026 (~08:00 UTC) — confirmed via Roblox's public games API — and the game ran it under the [🔥LEOPARD🐆] Grand Piece Online title (it launched the update under the old [CONTROLLER] tag, became [🐆LEOPARD🐆] on September 2 and took the 🔥 on September 27) until the October 1 Halloween update retitled it [🍬HALLOWEEN PT 1]. Level cap is 675. Whole Cake Part 2 was originally slated for around January 2026 and slipped repeatedly, so this lands about seven months later than first teased.
Confirmed: the official Update 13 notes
Everything below is from the developers' own release notes on the Roblox event page, lightly condensed:
- Blossom Falls — a new Second Sea island with PvP pads, training dummies and a crew capture point.
- Dragon Emperor Dungeon — a multi-stage dungeon: rescue the factory operators and villagers, defeat the King, then face the Dragon Emperor (the Kaido fight). Fruit storage is available inside dungeons, and the dungeon MVP earns a random fruit reward.
- Two new fruits: Leopard (Neko Neko no Mi, Model: Leopard — Mythical tier per the official fruit list) and Biscuit (Bisu Bisu no Mi — Legendary tier).
- Two new weapons: Thunder Club and the Moonfang Rapier (the rapier is not tracked on our value list).
- New NPCs and bosses: Pedro and the Biscuit Commander.
- New outfits, accessories and titles, plus vanity titles and more Custom Tailor options.
- Quality of life: Battle Royale queue autofill, Impel Down queue autofill with direct access to the Impel Down shop, and boss drop lists viewable in-game.
- Performance improvements and bug fixes.
- Removed: the Cupid event — the notes bid it a seasonal farewell. See what that means for traders.
Confirmed: the Leopard fruit in play
The Neko Neko no Mi, Model: Leopard — Rob Lucci's fruit — shows simply as "Leopard" in the inventory. It is the first new Mythical since Dragon and Soul arrived on December 25, 2025. From live gameplay documented on the community wiki within a day of release:
- Zoan-type with both a hybrid form and a full leopard form.
- Built to synergize with Rokushiki / Kamishiki fighting styles.
- Named moves include Predator Speed Blitz, Rankyaku Rebound, Leopard Ascension, and Primal Pursuit.
Confirmed: weekend boosts are now permanent
Per the official game description, every Friday–Sunday runs 2x Legendary and Mythical fruit rates, 2x boss drops and 1.25x EXP. If you are grinding the Dragon Emperor Dungeon for its Kaido gear or the Thunder Club, the weekend is when to do it.
Reported (seen in videos or on the wiki, not in the official notes)
- Iceborn Blade buffs — reported in a gameplay video from August 29; not listed in the developers' notes.
- The Dragon Emperor's drop table — the official notes do not itemise it; the drops and rates the GPO wiki lists are in Kaido boss and drops.
The five new tradable items — live values
On August 31, 2026, between 01:56 and 02:26 UTC, the main GPO trading community added trade emoji for five Update 13 items at once — the clearest signal there is that an item has entered the trade economy. 46 days later, 4 of the five are priced by our solver from settled trades. Values below are live from the last solve (2026-10-15 17:32 UTC), not typed in by hand:
| Item | What it is | Value | Demand | Tier |
|---|---|---|---|---|
| Leopard | Neko Neko no Mi, Model: Leopard — the headline new Mythical fruit | 7.4K | Low | A |
| All Seeing Blossom | New entry in the All Seeing Eye (ASE) accessory family — also searched as "Blossom ASE" | 104K | Stable | S |
| Thunder Club | New weapon (Dragon Emperor Dungeon line) | 20K | Stable | A+ |
| Kaido | Tagged new with Update 13; the official notes do not say where it comes from | tracked, not yet priced | ||
| Biscuit | Cracker's Bisu Bisu no Mi — new Legendary fruit | 1.1K | Low | B+ |
Young values: these are the youngest values on the site. Leopard and Biscuit were being pre-traded sight-unseen from August 28, before the emoji even existed, and the first weeks' prices were thin and swung hard as hype settled into real supply. Treat all five as still settling; the changes feed shows each day's moves.
Kaido boss and drops
"Kaido" in Grand Piece Online is the Dragon Emperor, the final stage of the new Dragon Emperor Dungeon: per the official Update 13 notes you rescue the factory operators and villagers, defeat the King, then face the Dragon Emperor. The official notes do not itemise his drops. The GPO wiki lists these drops for the Dragon Emperor — reported by the wiki, not confirmed by the developers — shown with live values from the last solve (2026-10-15 17:32 UTC):
| Item | Drop rate (wiki) | Where (wiki) | Value |
|---|---|---|---|
| Thunder Club | 0.5% | Dragon Emperor Dungeon | 20K |
| Kaido Cape | 3% | Blossom Village Raid | 1.7K |
| Kaido Gourd | 3% | Blossom Village Raid | 1.5K |
| Kaido Outfit | 3% | Blossom Village Raid | 1.4K |
Also traded under the Kaido name: Kaido Set (3K). Neither the wiki nor the official notes give a drop source for it, so we do not publish one.
- Drop rates: the rates above are the GPO wiki's figures — the same ones shown on each item's page (Thunder Club, Kaido Cape, Kaido Gourd and Kaido Outfit). The Update 13 notes also add boss drop lists viewable in-game, which is the confirmed source if the two ever disagree.
- Dungeon rewards (confirmed): fruit storage is available inside dungeons and the dungeon MVP earns a random fruit reward.
- When to farm (confirmed): Friday–Sunday runs 2x boss drops under the permanent weekend boosts, so weekend runs are the efficient ones.
What Update 13 changed for traders
- Five new tradables at once — the largest single injection of new items since Update 12. A new Mythical fruit historically pulls demand away from the previous chase items (see the watch table below).
- Cupid event removed (confirmed) → Cupid items no longer obtainable (reported / inferred). The notes remove the Cupid event; the direct inference is that its drops can no longer be farmed and existing supply is all there is. That is our reading, not a developer statement. Watch Cupid Queen's Wings and Prestige Cupid's Chakram — both are still on the value list and still trade.
- Permanent weekend boosts — 2x Legendary/Mythical fruit rates and 2x boss drops every weekend means new supply of top-end fruits and boss drops arrives in weekend waves. Prices on freshly-farmable items tend to soften on Mondays.
- In-game boss drop lists — players can now see drop tables without leaving the game, which usually narrows the information gap that mispriced trades relied on.
- Moonfang Rapier is the one new item we do not track; if it starts appearing in trade offers it will be added the same way the other five were.
Update-linked items to watch
A new top-end fruit typically pulls demand away from the previous chase items, and buffs (like the reported Iceborn Blade changes) usually lift demand for the affected line. These are the pre-Update 13 items we are watching, with live values from the last solve:
| Item | Value | Demand | Tier |
|---|---|---|---|
| Dragon | 29K | Stable | A+ |
| Soul | 4.2K | Low | A- |
| Soul Cleaver | 27K | Low | A+ |
| Iceborn Candy Cane | 735K | Stable | S |
| Sickle of Sorrow | 12K | Low | A |
Values above are re-solved daily from 127,198 logged trades, so this table tracks the market's actual reaction to the update — not a hand-edited guess.
2026 update timeline
October 16, 2026 — Balance Update
The Verity pet (Legendary, trick or treating at level 325), the 13th, Beetlejuice and Scarecrow costumes (Epic), the Traveling Merchant Snail Phone, Trading Signs, trade-window filters, skill indicators, HUD tooltips for Haki, Evasive and Ultimate, a new loading screen and lockpickable handcuffs. Full notes above.
October 1, 2026 — Halloween Event Part 1
Trick or Treat returns on Spooksville with the Brand of Sacrifice and Nightfall Aura collectable auras, four new costumes, the Tung Tung Thunder Club and last year's event items; daily quests with streak rewards replace the AFK World; Dullahan and the Halloween fishes return; Factory Raid fix. The Nightfall Half Shroud is no longer obtainable. Full notes above.
September 26, 2026 — Mini Update
Pretzel Longsword (Legendary, 3% Biscuit Commander drop), a Devil Fruit and weapon balance patch, client memory optimisations, compact HUD bars, grip dummy, mobile button editor rework and a bug-fix round. Code FREE_Drops8. Full notes above.
September 2026 — post-Update 13 patches
Besides the Mini Update there were 22 unitemised fix rounds (each confirmed via the Roblox place timestamp). No patch notes were published for them and no new tradables appeared. Dates and times in the post-Update 13 patch table above.
August 29–30, 2026 — Update 13 "Whole Cake Part 2"
Blossom Falls, the Dragon Emperor Dungeon, Leopard and Biscuit fruits, Thunder Club and Moonfang Rapier, Cupid event removed. Full notes above.
May 2026 — Controller support + fruit update
Full controller support (the reason the game's Roblox title carried the [CONTROLLER] tag until Update 13) alongside a round of fruit changes.
April 2026 — Sickle of Sorrow + Battle Pass Season 8
Season 8 of the battle pass, headlined by the Sickle of Sorrow.
March 2026 — Cupid Event
Seasonal event around the Virtuous Cupid Queen boss. Removed in Update 13, so its drops are (by inference) no longer obtainable — but they are still actively traded; see Cupid Queen's Wings and the Prestige Cupid's Chakram.
February 2026 — Whole Cake Part 1.90
A bridge patch: the Grappling Hook and Lovestruck Rod (neither tracked on our value list), loadouts, and a balancing pass on Ito, Magu, and Ope.
December 25, 2025 — Update 12 "Dragon & Soul" (Whole Cake Part 1)
The start of the Whole Cake arc: Whole Cake Island itself, the mythical fruits Dragon and Soul, and the Big Mama boss with her famous 0.1% Soul Cleaver drop. Also added: the Katakuri "Mochi Emperor" fight, the Helix Skewer and Mochi Trident weapons (not tracked on our list), Tower Raid, and the level-cap raise to 675.
Next update — what we know
Confirmed, no date yet (developer posts in the official Discord, October 1; last checked October 16, 2026): the rest of the Halloween content "will also return this month". The developers gave no exact date, and the "PT 1" in the game's title points to a second part. When it ships, its notes and any new tradables go at the top of this page.
Confirmed: the developers' Roblox event listing for Part 1 ends on October 18, 2026 at 02:00 UTC (10:00 PM Eastern on October 17). That is the end time the developers set on the listing, not an announced date for Part 2.
Reported, last year: in Halloween 2025, Part 2 added two new True Demon Ba'al drops, the Hollow's World Ender and the Prestige World Ender, plus five fishing blueprints, among them the Jack-O'Rod and the Dark Skeletal Shark Mask, according to the community wiki's update log. That is what last year's Part 2 contained, not a preview of this year's. Code trackers also recorded a 2x EXP code with each of last year's Parts 2 and 3; any new code goes on our Grand Piece Online codes page at our next daily check after it is published.
Beyond Halloween, nothing is announced — no Update 14 date. Whole Cake Part 2 itself slipped from roughly January to late August, so treat any community date you see as movable.
How this log works
This page is maintained alongside the GPO value list. Trade values are re-solved daily from the logged-trade corpus, and the Roblox place-update timestamp is checked daily; a patch row is added only when that timestamp moves. Update facts are labeled confirmed / reported / rumored, and the trade-value commentary comes from the same solver that powers the trade calculator — when an update actually moves the market, the changes feed shows it after the next solve.
Every update on this page adds items that are worth the most in the fortnight nobody has farmed them yet, which is exactly when they are hardest to trade for. the PetMart GPO store lists what it has in stock, priced in dollars rather than in trade value. PetMart is our own shop — the same people run both sites, and we make money when you buy there. It does not move the values.