[Standard] Bitcoin Cash - Mainnet - Upgrade to v29.0.0

Scheduled Maintenance Report for Quicknode

Completed

The scheduled maintenance has been completed.
Posted May 14, 2026 - 14:00 UTC

In progress

Scheduled maintenance is currently in progress. We will provide updates as necessary.
Posted May 14, 2026 - 10:00 UTC

Scheduled

We are upgrading our Bitcoin Cash Mainnet infrastructure to bitcoin-cash-node v29.0.0.

This is a major release implementing the May 15, 2026 Network Upgrade, which activates four consensus-level CHIP upgrades (P2S, Bounded Looping Operations, Functions, and Bitwise Operations). The release also includes performance improvements and various corrections. During the maintenance window, customers may experience intermittent disruptions to RPC availability as nodes are rotated through the upgrade process.

RPC Changes:

gettxoutsetinfo — significantly expanded; now uses a new default hashing algorithm (hash_serialized_3) reported under a new JSON key, with optional support for ECMH and MuHash3072. The old hash_serialized algorithm and key have been removed. getblock /

getrawtransaction — added a new patterns flag (usable with verbose outputs) that includes a byteCodePattern object describing script patterns and fingerprints. New REST endpoints /block/withpatterns/ and /tx/withpatterns/ have been added.

getrawtransaction — at verbosity level 2, the sequence field is now the last object in inputs and the fee field is the first object after vout. Data is unchanged, but clients relying on key ordering may need updates.

getblockchaininfo — added new upgrade_status key with details about the next scheduled BCH network upgrade and its activation.

getmempoolinfo — added two new keys: permitbaremultisig (boolean) and maxdatacarriersize (numeric). NFT commitments — RPCs that generate transactions with NFT commitments now accept empty strings to represent empty commitments.

Release: https://github.com/bitcoin-cash-node/bitcoin-cash-node/releases/tag/v29.0.0
Posted May 13, 2026 - 18:04 UTC
This scheduled maintenance affected: Bitcoin Cash (Mainnet — JSON-RPC API, Mainnet — Streams, Mainnet — Webhooks, Testnet — JSON-RPC API, Testnet — Streams, Testnet — Webhooks).