[Urgent] Litecoin [Mainnet | Testnet] - litecoin-core Upgrade to v0.21.5.5

Scheduled Maintenance Report for Quicknode

Completed

The scheduled maintenance has been completed.

Posted May 07, 2026 - 15:36 UTC

In progress

Scheduled maintenance is currently in progress. We will provide updates as necessary.

Posted May 07, 2026 - 11:00 UTC

Scheduled

We are upgrading our Litecoin Core nodes on Mainnet and Testnet to v0.21.5.5. During the maintenance window, brief interruptions to RPC availability may occur. This release includes important MWEB consensus hardening, node reliability improvements, and wallet and RPC fixes.

RPC Changes:
sendrawtransaction / testmempoolaccept — modified Both endpoints now support maxfeerate=0 for MWEB transactions.

getblocktemplate — modified Fee and sigop accounting improved for transactions carrying MWEB data. Also now permitted on test chains when the node is unconnected or in initial block download.

dumpwallet — modified Now includes MWEB view keys in wallet dump output.

http://github.com/litecoin-project/litecoin/blob/master/doc/litecoin-release-notes/release-notes-0.21.5.5.md

Posted May 06, 2026 - 18:07 UTC

This scheduled maintenance affected: Litecoin (Mainnet — JSON-RPC API, Testnet - JSON RPC API).