Zcash (ZEC) v6.2.0 Update

The Zcash team has officially started the deprecation process of zcashd in 2025. All full nodes are being transitioned to zebrad, and a new wallet, Zallet, is being developed as a replacement for the zcashd wallet interface.

While many JSON-RPC methods will be supported in zebrad or Zallet as drop-in replacements, others may require changes, and some will not be available at all. If you use zcashd for mining or other integrations, please review the JSON-RPC compatibility spreadsheet and provide your feedback to help improve migration support.

Platform Note: Support for Ubuntu 20.04 LTS has been dropped. It will reach its end of support in May 2025 and no longer meets Tier 2 policy requirements due to GitHub runner limitations.

Learn more: Zcashd Deprecation Information

KASPA (KAS) v1.0.0 — Crescendo Hardfork

The long-awaited Crescendo Hardfork is here! Kaspa has released rusty-kaspa v1.0.0, introducing major performance upgrades and an increase in block production speed from 1 block per second (BPS) to 10 BPS. The upgrade was activated on May 5, 2025, at approximately 15:00 UTC at DAA Score 110,165,000.

Key Features:

• 10 BPS Activation: 10x increase in block rate improves transaction throughput and responsiveness.
• New P2P Protocol v7: Required to maintain peer connectivity. Nodes will disconnect from peers using the older protocol 24 hours before activation.
• Retention Configuration: Use –retention-period-days to control how much historical data to keep. Default is approx. 30 hours (previously ~50 hours).
• Enhanced Node Efficiency: Better control over data storage and pruning due to higher block generation rate.

For full details, consult the Crescendo Upgrade Guide.

KASPA (KAS) Block Reward Reduction

As per the KASPA Tokenomics and emission schedule, a new block reward reduction has occurred:

• Previous Block Reward: 61.74 KAS
• New Block Reward: 58.27 KAS

Make sure to update your mining profitability estimates using 2CryptoCalc.

Nervos CKB v0.201.0 Update

The latest CKB release, v0.201.0, brings important maintenance and compatibility upgrades in preparation for future consensus changes. This update includes improvements in build stability, logging, and project maintainability.

Key Fixes and Improvements:

• Fixed WebAssembly (WASM) build errors in the previous version.
• Improved logging for assume-valid-target.
• Upgraded Rust toolchain to 1.85.0 and Rust edition to 2024.
• Introduced cargo autoinherit to centralize and simplify dependency management across the project.

Deprecation Notice: CentOS support will be discontinued soon. Users are advised to switch to other supported platforms or build from source.

For downloads and compatibility information, refer to the official CKB GitHub Release Page.

Stay tuned to our Twitter and Telegram for real-time updates. Happy mining!

Nervos CKB Update

The latest release from Nervos CKB, version 0.119.0, was introduced on October 25, 2024. This update is pivotal as it rolls out a new preview chain, which provides a test environment for the upcoming hard fork on the Nervos network. Here are the key highlights:

• New Chain for Preview: Allows developers and users to engage with the hard fork changes ahead of official deployment, enhancing transparency and readiness.
• Testnet Activation: The hard fork has been activated on the testnet, requiring nodes to update to this latest version to participate and test the changes effectively.
• Compatibility: Ensures compatibility across different network stages, including developments scheduled for future epochs.

Notable improvements and bug fixes in this release address multi-threading issues, script optimizations, and transaction conflict resolutions, contributing to the overall robustness of the network.

Zephyr Protocol v2.0.0 – ZSD Yield Release

Zephyr’s major update to version 2.0.0, known as the ZSD Yield Release, was rolled out to support the new ZSD Yield Mechanism. Here are the significant changes and enhancements:

• ZSD Yield Mechanism: Users can now stake ZSD and receive Zephyr Yield Shares (ZYS), a new asset that represents a stake in the ZSD Yield Reserve.
• Block Reward Restructuring: To support the new yield system, block rewards have been reallocated, significantly altering the distribution to favor reserve accumulation while removing the governance reward.

This update marks a substantial shift in Zephyr’s approach to value storage and distribution, aiming to enhance stability and growth within the ecosystem.

Pyrin Network Uncertainty

October brought unforeseen challenges with the Pyrin project. The developers have abruptly left the project and shut down all associated online platforms, casting significant doubt on the future of the Pyrin network. As a result:

• The official Pyrin website and social media channels have been deactivated, eliminating direct sources of information and updates.
• Mining continues, however, the stability and viability of PYI are now in question, and no new deposits are being accepted on exchanges.
• Bitcoin payouts for PYI mining have been halted, reflecting the uncertainty surrounding the project’s continuation.

We advise miners to proceed with caution and consider mining other cryptocurrencies. Use 2CryptoCalc.com to assess the profitability of available options.

As always, we are here to support your mining endeavors and will keep you updated through our X (Twitter) and Telegram miner community on any developments. Your success in mining is important to us, and we’re committed to navigating these challenges together.

Bitcoin Payouts Now Available for Horizen (ZEN)

We are thrilled to introduce Bitcoin payouts for Horizen (ZEN) miners, adding to the list of cryptocurrencies on 2Miners that support this feature. Miners can now receive their earnings in Bitcoin by simply setting their BTC wallet address in the mining software. All types of BTC wallet addresses are supported, and the pool automatically detects the BTC address for smooth payouts.

Horizen (ZEN) is a privacy-focused cryptocurrency that offers a scalable blockchain platform supporting decentralized applications. With its robust infrastructure and focus on privacy and scalability, Horizen has become a significant player in the blockchain space, making this new payout feature a valuable addition for miners.

Start mining ZEN with Bitcoin payouts:

Node Updates

Nervos CKB

The latest update for Nervos CKB (v0.119.0) was released on October 25, 2024, introducing a new preview chain to test the upcoming hardfork. This ensures that developers and users can validate changes before they are deployed on the mainnet, enhancing the security and reliability of the network.

• Bug Fixes: Addressed atomic ordering issues in multi-threading, improved script performance, and resolved transaction conflicts.
• Improvements: Enhanced query performance for rich-indexer and optimized block filter operations.

Zcash

Zcash version 6.0.0 was released in preparation for Network Upgrade 6 (NU6), set to activate on November 23, 2024. This upgrade introduces a new decentralized funding model and a lockbox for future grants. Key updates include adjustments to block rewards and enhanced testnet support for miners and developers.

• ZIP Updates: Implementation of ZIP 207, ZIP 214, and other consensus rules for decentralized development funding.
• Recommendations for Miners: Update to version 6.0.0 or later to ensure compatibility with the NU6 upgrade.

Block Reward Reductions

November also brought block reward reductions for several cryptocurrencies in line with their respective tokenomics. Here’s a summary:

• Karlsen (KLS): Reduced from 38.24 KLS to 36.15 KLS.
• Zcash (ZEC): Reduced from 2.50 ZEC to 1.25 ZEC.
• Kaspa (KAS): Reduced from 82.40 KAS to 77.78 KAS.

To assist miners in estimating their earnings, the 2CryptoCalc mining calculator has been updated to reflect these changes. Make sure to use it to plan your mining strategy effectively.

As always, we remain committed to supporting your mining activities. Stay updated through our X (Twitter) and Telegram miner community. Happy mining!