Contents
Node Updates
MimbleWimbleCoin (MWC) v5.3.10
- Transaction fee limits: safeguards to prevent unexpectedly high fees.
- New “offline” mode: run in a mode better suited for cold wallet setups (prepare and sign transactions without network access).
We recommend upgrading if you use cold storage or routinely craft transactions for offline signing.
Ergo (ERG) 6.0.1
- Versioned block transaction serializer since 6.0: ensures the correct serializer version is used going forward.
- Candidate regeneration fixes: stability improvements while preparing block candidates.
- Indexed node API additions: endpoint to fetch blocks with full transactions.
- UTXO queries refined: option to exclude mempool-spent outputs across all “unspent” endpoints.
- Unconfirmed TX detail: endpoint now returns full inputs with proofs for pending transactions.
This maintenance release focuses on correctness, API completeness, and smoother block candidate handling.
Zcash (ZEC) v6.3.0
Network Upgrade 6.1 (NU6.1) preparations are included in this release.
- ZIP 271: Deferred Dev Fund Lockbox Disbursement.
- ZIP 1016 (partial): Community and Coinholder Funding Model.
- Activation (testnet): NU6.1 activates at height 3,536,500.
- Regtest control: can be activated at a specific height using -nuparams=4dec4df0:HEIGHT.
- Testing note: during the test phase, consensus rules may change; if so, testnet will be rolled back in v6.10.0 and re-activated a second time (see ZIP 255 for deployment process).
Bug fix: corrected accounting for unshielding transactions spending Orchard notes in transparent balance-related RPCs (e.g., getbalance, gettransaction), aligning behavior with earlier fixes for Sprout/Sapling.
Default updated: -preferredtxversion now defaults to 5 (NU5 format). Use -preferredtxversion=4 to retain the previous behavior.
Block Reward Reductions
Karlsen (KLS)
Per the Karlsencoin tokenomics and emission schedule, the block reward decreased:
- Previous: 29.71 KLS
- New: 28.89 KLS
Please pay attention! 2CryptoCalc has been updated accordingly.
Kaspa (KAS)
As part of the Kaspa emission schedule and Crescendo hard fork process, another planned reduction occurred:
- Previous: 4.90 KAS
- New: 4.62 KAS
Please pay attention! 2CryptoCalc reflects the new reward.
That wraps up the key events of August 2025. Follow us on X (Twitter) and join our Telegram community for instant updates and support.
