Weekly Dev Update #81

THORChain Weekly Dev Update for Week 81, 08–15 Feb; V0.20, V0.21, V0.22, Historical USD pricing, ASGARDEX improvements, BEPSwap Improvements.

5 min readFeb 15, 2021

Summary

The week saw three rapid releases issued to fix live bugs. The first release V0.20 and V0.21 were unrelated, but V0.21 caused a chain halt after the churn, so V0.22 was released to restart the chain. This was the first chain halt seen in a public network, but it restarted without any issues.

Midgard now comes with Historical Pricing in USD for volumes, fees and depths. This will allow more accurate historical charts to be plotted.

ASGARDEX and ASGARD Exchange continue to be worked on, getting closer to supporting all 5 chains.

THORChain V0.20.0

Testnet became stuck in vault migration, the root cause was some nodes started without ETH being fully synced. As a result the new vault was created without ETH support, thus when vault migration was to forward the ERC20 USDT to the next Asgard, it doesn’t know where send it.

release 0.20.0 to multichain testnet

THORChain V0.21.0

Every outbound tx on BTC chain, Bifröst attempted to spend all the UTXOs, but since it had 75 unspent UTXOs, this overloaded the TSS protocol and it kept timing out. The solution was to update Bifröst to cap at 15 UTXOs unless 15 UTXOs are not enough to pay for the outbound tx, then bifrost will spend as much as it need.

In addition THORChain uses 8 decimal precision, however ERC20 USDT only uses 6 decimal precision. Thus precision is lost between sending the transaction then observing it back in. As a result, nodes are accused of stealing assets and banned. The solution was to update Bifröst to report decimal precision of coin to THORChain when the decimal precision is less than 8, and pool will carry the precision as a property, when swap / withdraw, the emit asset will be rounded to the correct precision.

Release 0.21.0 to multichain testnet

THORChain V0.22.0

On version 0.21.0, the network banned some nodes who needed to be added back in. The logic to add them didn’t play nice with a network churn and caused a consensus failure after there was a mix up in who to add. The chain immediately halted. The team pushed a release which was able to restart the chain and fix the bug, in addition to some other minor bugs relating to BTC and ETH Bifrost.

release 0.22.0 to multichain testnet

Multichain Resources

Midgard: https://testnet.midgard.thorchain.info

THORNode: https://testnet.thornode.thorchain.info

RPC: https://testnet.rpc.thorchain.info

Seed Service: https://testnet.seed.thorchain.info

THORNode

Multichain patches, including some updates to Ethereum decimal handling.

Midgard

Work continues to update Midgard V2 to handle Multichain requirements.

DevOps

XChainJS

https://xchainjs.org

Litecoin and BitcoinCash were merged.

Bridges

Actively-developed bridges will be reported here going forward. Bridges are commissioned once a team who can implement is identified and work begins.

Complete

Bitcoin: Deployed to testnet
Ethereum: Deployed to testnet
BitcoinCash: Deployed to testnet
Litecoin: Deployed to testnet

UTXO Chains

Dogecoin: Under Implementation — no blockers
ZCash: Scoped, rain-checked

Cryptonote

Haven: Under implementation
Monero: Pending Haven implementation

Custom

Cardano — Scoping
Polkadot: Under implementation — some hurdles to cross with bifrost state sync.
Avalanche: Rain-checked
Zilliqa: Scoped, rain-checked

EVM Chains

Binance Smart Chain: Rain-checked
Ethereum Classic: Rain-checked
Rootstock: Rain-checked
Arbitrum: Rain-checked

IBC

Pending IBC integration — Cosmos, Terra, Kava, Secret Network, Injective Protocol, Sifchain, Akash Network

Clients

BEPSwap Client

Numerous UI/UX tweaks based on community feedback

New feature: type pooladdress in the send screen to automatically allow you to send custom transactions to Asgard.

ASGARDEX Client

Work continues to prepare the client for Multichain Chaosnet. It will be ready within the week. The first build was released, but it has MacOs signing issues. In the meantime, the following pages were implemented:

Community Work

The following tools receive regular updates:

Telegram Bot

@thornode_testnet_bot

@thornode_chaosnet_bot

Twitter Bot

https://twitter.com/thor_bot

Delphi Defi Dashboard

Upcoming Release for the Dashboard

https://defi.delphidigital.io/thorchain/chaosnet/network

THORChain Network Explorer

Continual Improvements, now with custom sub-domains for each net:

https://thorchain.net/

https://testnet.thorchain.net/

https://multichain-testnet.thorchain.net/

THORChain Official Block Explorer

https://viewblock.io/thorchain

THORChain Dashboard (ViewBlock)

https://dash.viewblock.io/d/thorchain

RUNEData

View historical yield and simulate future yield in pools:

http://www.runedata.info/

RUNEBalance

View current arbitrage opportunities in the pools. New card-style overviews.

https://www.runebalance.com/#/pools

RUNEStake

RUNEStake can be used to see yield in THORChain liquidity pools.

https://runestake.info/

Trading Leaderboard

View the current leaderboard for traders on THORChain

https://leaderboard.thornode.org/

GrassRootsCrypto Youtube

GrassRootsCrypto consistently puts out great educational videos on THORChain, users should subscribe and bookmark the channel.

https://www.youtube.com/channel/UCuC_PiCEsNIT6HH88r7vCsw/videos

Next Milestones

Multichain support in asgard.exchange and the desktop wallet, continue to stabilise the chain. Help the community transition to Midgard V2. Anticipating chaosnet in 4–6 weeks.

Community

To keep up to date, please monitor community channels, particularly Telegram and Twitter:

Twitter: https://twitter.com/thorchain_org
Telegram Community: https://t.me/thorchain_org
Telegram Announcements: https://t.me/thorchain
Reddit: https://reddit.com/r/thorchain
Github: https://github.com/thorchain
Medium: https://medium.com/thorchain

THORChain