Zcash Network Upgrade NU6.1 Activated
The Zcash network successfully activated NU6.1 in November 2025, following the release of zcashd v6.10.0. This upgrade was endorsed by both the Electric Coin Company and the Zcash Foundation and introduced a new long-term funding model that separates the roles of the Community and ZEC coinholders.
The new funding structure allocates:
- 8% of all block rewards to Zcash Community Grants (ZCG), supporting community-driven initiatives.
- 12% of block rewards to a new Coinholder-Controlled Fund. This fund is governed directly by ZEC coinholders and may be used to distribute grants to ecosystem contributors or remain untouched for future decisions.
This model will remain active until the 3rd Zcash halving, allowing the community to evaluate whether it should be extended or revised.
NU6.1 also included several protocol updates and ZIP changes:
New ZIPs
- ZIP 255: Deployment of the NU6.1 Network Upgrade
- ZIP 271: Dev Fund Extension and One-Time Disbursement
- ZIP 1016: Community and Coinholder Funding Model
Updated ZIPs
- ZIP 214: Consensus rules for a Zcash Development Fund
Alongside funding changes, NU6.1 also improved RPC balance reporting for shielded transactions and introduced transaction version v5 as the new default format.
CKB Client Update: Version 0.203.0 Released
The Nervos CKB team released CKB 0.203.0 (commit 88d1126, dated 2025-10-22), bringing a series of new features, bug fixes, and performance improvements. This update enhanced network stability and optimized several internal components used by full nodes and light clients.
Key Features
- #4891: Added hole punching protocol metrics
- #4888: Introduced two outbound block-relay-only connections for improved network propagation
- #4910: Implemented from/into conversions for gen-type
- #4920: Enhanced scriptHashType serialization logic
Bug Fixes
- #4895: Corrected error handling in add_node and remove_node calls within NetRpcImpl
Improvements
- #4970: Disabled default features for strum dependency
- #4946: Improved rich-indexer stability by ensuring RocksDB SecondaryDB stays synchronized before read operations
- #4972: Limited the size of the filters field in BlockFilters messages to 1.8 MB to prevent node disconnects caused by oversized frames
These changes improve overall network reliability and reduce the likelihood of full nodes disconnecting light clients due to oversized filter messages.
Kaspa (KAS) Block Reward Reduction
As defined by the Kaspa Tokenomics, the Crescendo Hard Fork, and the official Emission Schedule, Kaspa underwent another scheduled block reward reduction in November.
- Previous Reward: 4.12 KAS
- New Reward: 3.89 KAS
Please pay attention! Mining profitability for Kaspa has changed. We have already updated 2CryptoCalc to reflect the new reward values.
Stay Updated
That concludes the November 2025 updates. Follow us on X (Twitter) and join the discussion on Telegram to stay informed about new developments, miner alerts, and network upgrades.