BitTube is set to fork on July 29th, moving to a brand new Proof-of-Work algorithm. This migration to tube4 brings the following changes:

• Max supply reduction: 600 million (from 1 billion)
• Emission reduction
• Faster block times: 15 seconds (from 120 seconds)
• Faster daemon synchronization and wallet scanning
• Continues to favor GPU mining
• Proof-of-Work algorithm changed: Cuckaroo29b
• Initial circulating supply: 272 million
• Initial block reward: 19 TUBEs
• Miner reward: 50% of block reward
• AirTime reward: 50% of block reward
• AirTime reward is distributed every 240 blocks (60 minutes)

What does this mean?

Prior to the fork taking place, miners will need to update their software to support the new Cuckaroo29b PoW algorithm.

At this point, the following mining software is available that supports the change:

• gminer (at least version 2.16)

Additionally, the following partnered Foreman pools have been updated and are ready for the fork:

• herominers
• miner.rocks
• miningrigrentals

How do I prepare?

Download either of the software mentioned above and begin mining with it prior to the fork. Additionally, verify that the pool you’re using is ready for the fork. If you’re in doubt, use one of the pools mentioned above.

Monitoring

By running an updated version of gminer, your devices will automatically update in Foreman and you will experience no monitoring downtime.

Haven’s Apollo v1.0.0 is set to fork on July 20th at block height 640640, which is expected to occur at roughly 15:00 GMT+1. This will trigger the launch of xUSD.

What does this mean?

Prior to the fork taking place, miners will need to update their software to support the new pricing_record struct, which is required to be present in the block_header (the block size for a block_header has increased significantly).

At this point, the following mining software is available that supports the change:

• srbminer (at least version 1.9.4)
• xmrig (at least version 6.3.0)

TeamRedMiner currently has not been updated to support the fork. That work, however, has been started.

How do I prepare?

Download either of the software mentioned above and begin mining with it prior to the fork.

Monitoring

By running an updated version of either srbminer or xmrig, your devices will automatically update in Foreman and you will experience no monitoring downtime.

Within the next day, a GRIN hard fork will occur at block 786,240. The algorithm will change from Cuckaroom29 to Cuckarooz29.

What does this mean?

When the fork takes place, miners will need to update their software to versions that support Cuckarooz29.

At this point, the following mining software is available that supports the new algorithm:

• bminer (at least version 16.2.8)
• gminer (at least version 2.17)

The following pools and services are prepared for the fork:

• 2miners
• grinmint
• sparkpool
• f2pool
• nanopool
• beepool
• miningrigrentals
• nicehash

How do I prepare?

• Download either of the software mentioned above
• Verify that the pools that you’re using are prepared for the transition

Monitoring

By running an updated version of either bminer or gminer, your devices will automatically update in Foreman and you will experience no monitoring downtime.

Additionally, the Cuckarooz29 algorithm has been added and NiceHash (hk, eu, in, usa, br, and jp regions) and MiningRigRentals profitability will continue to be updated and displayed throughout the fork.