Pump Developer Updates

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Updated: May 16, 2026 at 6:14 PM

Pump Developer Updates

Updates regarding all technical related changes that may affect integrations

@pump_tech_updates offers specialized information about related and integrations for subscribers interested in Tech News

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Pump Developer Updates

May 21, 2026, 01:53 AM

Hi all, Mayhem mode and create v2 will now be enabled on 12th November 12:00 UTC instead of 11th November.

15,800

Pump Developer Updates

May 21, 2026, 01:53 AM

Hi all,

We have pushed a non breaking program upgrade on the bonding curve and pump swap program.
Changes as part of this upgrade:

1. The global_volume_accumulator account on the buy instruction of bonding curve and pump swap do not need to be mutable anymore.
2. New fee recipients for mayhem mode: We have introduced 7 new fee recipients that can be used for the buy and sell instruction that can be used when bonding_curve.is_mayhem_mode = true and pool.is_mayhem_mode = true. They can be found in the global and global_config accounts in bonding curve and pump swap respectively.

Any of the following 8 fee recipients can now be used:
[
'GesfTA3X2arioaHp8bbKdjG9vJtskViWACZoYvxp4twS',
'4budycTjhs9fD6xw62VBducVTNgMgJJ5BgtKq7mAZwn6',
'8SBKzEQU4nLSzcwF4a74F2iaUDQyTfjGndn6qUWBnrpR',
'4UQeTP1T39KZ9Sfxzo3WR5skgsaP6NZa87BAkuazLEKH',
'8sNeir4QsLsJdYpc9RZacohhK1Y5FLU3nC5LXgYB4aa6',
'Fh9HmeLNUMVCvejxCtCL2DbYaRyBFVJ5xrWkLnMH6fdk',
'463MEnMeGyJekNZFQSTUABBEbLnvMTALbT6ZmsxAbAdq',
'6AUH3WEHucYZyC61hqpqYUWVto5qA5hjHuNQ32GNnNxA'
]

Updated IDLs can be found here: https://github.com/pump-fun/pump-public-docs

10,900

Pump Developer Updates

May 21, 2026, 01:53 AM

Hi, we will be pushing an update to our programs on Fri Jan 9, afternoon UTC.

This update will make some coins' creator_vault point to new addresses. To ensure buy and sell instructions work seamlessly, always fetch the latest creator on-chain. Do not use cached addresses for bonding_curve.creator or pool.coin_creator.

The derivation logic remains the same, so no code changes are needed if you're already fetching fresh data.

### Pre-Graduation Coins (Bonding Curve)
const bondingCurve = await pumpProgram.account.bondingCurve.fetch(bondingCurvePda);
const creatorVault = PublicKey.findProgramAddressSync(
[Buffer.from("creator-vault"), bondingCurve.creator.toBuffer()],
PUMP_PROGRAM_ID
)[0];

### Graduated Coins (AMM Pool)const pool = await pumpAmmProgram.account.pool.fetch(poolPda);
const coinCreatorVaultAuthority = PublicKey.findProgramAddressSync(
[Buffer.from("creator_vault"), pool.coinCreator.toBuffer()],
PUMP_AMM_PROGRAM_ID
)[0];

If you already fetch the latest bonding_curve.creator and pool.coin_creator from the chain before building your buy and sell instructions, no code changes are needed.

8,250

Pump Developer Updates

May 21, 2026, 01:53 AM

Hi all, we will be doing a breaking program upgrade on pump swap on Tuesday, 4th November, 14:00 UTC. As part of the change, we require you to mark the pool account at account index 1 in pump swap buys and sells as mutable ( as opposed to readonly ). Please make the changes as soon as possible, your integration will not break if you make it mutable before we do the program upgrade.

IDL change for reference: https://github.com/pump-fun/pump-public-docs/commit/ff9cbf8238b4e459864fed415465cc8163113d1c

SDK version with update: https://t.me/pump-fun/[email protected]

9,380

Pump Developer Updates

May 21, 2026, 01:53 AM

The pump bonding curve contract and the pump swap contract were upgraded earlier today at: November 5, 5:02pm UTC. The bonding curve upgrade was a routing upgrade with no breaking changes but Pump swap has breaking changes as mentioned earlier.

8,790

Pump Developer Updates

May 21, 2026, 01:53 AM

Hi all, On 11th November at 12:00 UTC, we will enable 2 new breaking features.
1. New token creation standard with token2022 called create_v2
2. Mayhem Mode

Please refer here for the updated IDLs and IDL types: https://github.com/pump-fun/pump-public-docs

Please note:
1. Any coin created with the usual create instruction and owned by the legacy token program can be traded the same way as before. This is not a breaking change for trading or creating such coins, you can continue to use the same accounts and instruction data.
2. Any new coin created after 11th November at 12:00 UTC with create_v2 will be owned by the Token2022 program. Creating and trading such accounts will need changes as described here: https://github.com/pump-fun/pump-public-docs/blob/main/README.md

Program is updated on devnet for testing with both features enabled.

SDKs for both bonding curve and pump swap are updated

https://www.npmjs.com/package/@pump-fun/pump-sdk
https://www.npmjs.com/package/@pump-fun/pump-swap-sdk

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Pump Developer Updates

May 21, 2026, 01:53 AM

Screenshot 2025-08-29 at 3.38.58 PM.png

10,800

Pump Developer Updates

May 21, 2026, 01:53 AM

Hi all, today at 20:00 UTC we will deploy a change that makes the two additional accounts for the new fee structure mandatory — these accounts are currently optional. Shortly after verifying that this works we will deploy the fee schedule change outlined above. There will be 1 hour of notice before the fee schedule changes go live.

11,700

Pump Developer Updates

May 21, 2026, 01:53 AM

Screenshot 2025-08-29 at 3.38.58 PM.png

11,700

Pump Developer Updates

May 21, 2026, 01:53 AM

The pump bonding curve contract and the pump swap contract were upgraded earlier today at: October 17, 2025 16:47:00 UTC. It was a routine upgrade with no breaking changes.

8,880

Pump Developer Updates

May 6, 2026, 01:57 PM

Hello! Effective Monday, September 1st, both Pump and PumpSwap programs will require 2 additional readonly accounts for all buy and sell transactions. Required Changes: Pump program (6EF8rrecthR5Dkzon8Nwu78hRvfCKubJ14M5uBEwF6P): - Buy instruction: Add accounts…

6,880

Pump Developer Updates

May 6, 2026, 01:57 PM

📎 File

Hello. We pushed again the update to both Pump and PumpSwap programs which adds the 2 new additional accounts on buy / sell.

On Monday, September 1, 20:00 UTC, these 2 accounts will become mandatory and the programs fee structure will change from the existing one to a dynamic fee structure depending on the current coin market cap.

The new fee structure code is present in both our Typescript SDKs:
- https://www.npmjs.com/package/@pump-fun/pump-sdk?activeTab=code
- https://www.npmjs.com/package/@pump-fun/pump-swap-sdk?activeTab=code

All technical details about this update can be found here: https://github.com/pump-fun/pump-public-docs/blob/main/docs/FEE_PROGRAM_README.md

We will use the attached fee tiers structure starting from Monday.

In order to avoid possible issues created by the new fee structure, until you make sure it's implemented correctly, you can increase the slippage tolerance on buy / sell instructions as a temporary mitigation.

11,600

Pump Developer Updates

Apr 19, 2026, 01:08 PM

Changes have been fully reverted.

5,540

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