QUB Core v1.7.6 HF119

QUB Core v1.7.6 HF119

HF119 supersedes the local HF118 candidate before public deployment.

This is not a chain upgrade.

No activation heights changed. No DAA change. No seed update. No checkpoint change. No genesis/economics change.

Highlights

• Officially enables QUB Melt for JIN in the QUB balance card after HF116 activation.
• Officially enables Infuse JIN into QUB in the native JIN Coin balance card after HF116 activation.
• Adds a dedicated QUB/JIN action window with Infuse and Melt modes.
• Shows live preview/safety checks for active JIN inside QUB, true max QUB supply, current per-QUB backing, minimum exact infusion step, expected melt payout, and minimum JIN guard.
• GUI QUB/JIN transactions use the HF117 wallet-pending-txs.json outbox, exact bounded rebroadcast, status tracking, and stale/reorg recovery path.
• Polishes QUB Explorer buttons: compact square icon, light corner rounding, much lower padding, centered image.
• QUB/JIN Infuse/Melt transactions continue to use the HF117 wallet-pending-txs.json recovery path and exact bounded rebroadcast.
• Adds HF119 public-GUI winner brake for solo mining: if the same local payout address already mined the latest solo block(s), the official GUI waits a one-tip wall-clock cooldown before hashing the next height.
• The winner brake is local mining policy only; it does not change block validity, DAA, activation heights, seeds, or consensus.

Unchanged

• QUB/JIN activation remains #16777.
• Verified Governance v1 remains scheduled for block #21000.
• JIN Public Sale rules remain unchanged.
• JIN Coin -> JIN Token conversion remains disabled until bridge release.
• DAA v2 remains unchanged.
• Mainnet checkpoint remains unchanged.
• Seeds are not updated by this release.

Security

Never share:

• wallet.json
• ethereum-wallets.json
• wallet-pending-txs.json
• private keys
• seed phrases
• SSH keys
• local chain data

This repository is source-only and does not include runtime wallets, private keys, installers, or user data.