Hummingbot Connector changelog

A market-making instance that had been quoting for days could no longer be started. Hummingbot keeps a record of every order level its strategy has ever quoted, and loads all of those records into memory before it places its first order. A market maker adds…

MARKET MAKING · STABILITY · MEMORY · RECORDER

A market-making bot bought its whole sell side every time it started. Hummingbot's position rebalance counts its executors' positions, never the wallet, so at every start it market-bought the base asset for the sell side — on a book the bot makes itself tha…

MARKET MAKING · PERFORMANCE · ORDER STREAMS · KIT

A bot could trade on an account nobody chose for it. Hummingbot signs every order with the key sitting in its checkout's connector config, and the platform books that order against that key's owner — their wallet funds it, their balance is held, and only th…

ACCOUNTS · ORDERS · SECURITY · SHUTDOWN · CANCELLATION

An order the platform could not identify was tracked for ever. When a placement neither succeeded nor failed cleanly, the connector's own escape hatch raised a message one word away from the phrase Hummingbot tests for — it said "as not found" where the fra…

ORDER TRACKING · CANCELLATION · PERPETUAL · PAPER TRADING · CONNECTOR

The backend was billing its own queue delay to the bot's clock, calling it a broken clock, and charging it as a forged signature. Under load the platform told operators to go and sync the clock on a machine whose clock was correct — often the same host the…

RATE LIMITS · AUTHENTICATION · CLOCK SKEW · CANCELLATION · SHUTDOWN · BATCH CANCEL · CONNECTOR

A cancel release, for venues moving markets onto Ecosystem 6.5.0's shard tier. On a sharded market the order rows this connector reads are a projection that lands a few milliseconds after the shard has the order, and a bot that cancels straight off its plac…

CONNECTOR · CANCELS · SHARDS · MATCHING-ENGINE · PERPETUAL · FEES · RATE-LIMITS · DIAGNOSTICS · +1

A paper-trading release. A strategy can now be run against your exchange's real order book with simulated money — the same spreads, the same ladder, the same refresh interval — without one order reaching the matching engine or one wallet being debited.

CONNECTOR · PAPER-TRADING · SIMULATION · STRATEGIES · INSTANCES

A funding release, and a narrow one: the two surfaces this connector offers for the same number disagreed with each other. The REST funding-rate endpoint reported what the platform settles. The live websocket stream reported what somebody typed into the mar…

CONNECTOR · FUNDING · WEBSOCKET · MARKET-DATA · FUTURES

Three fields this connector reported to professional counterparties were statements about the platform rather than about the market, and all three have stopped being. The perpetual funding endpoint served a hardcoded zero rate to every caller that asked. Th…

CONNECTOR · FUNDING · ORDER-TYPES · API-KEYS · MOBILE

Three things a two-sided market maker could not do: place a market order, hedge on paper, or stop its bot without losing orders it placed by hand.

CRITICAL FIXES · ORDERS · MARKET MAKING · BOT CONSOLE · STRATEGIES

A market maker that cancelled several quotes at once made its own order book read as empty for the next few seconds — and was then refused for insufficient liquidity against a book that was full.

CRITICAL FIX · ORDERS · MARKET MAKING · ORDER BOOK

v6.0.8 fixed a cancel that was given up on. This fixes the one that was never sent — and three other ways a bot could stop trading without saying so.

CRITICAL FIXES · ORDERS · MARKET MAKING · CONNECTOR · PERFORMANCE · BOT CONSOLE · STREAMS

A stuck-order release, and it is the most damaging fault this connector has had. When the exchange refused a cancel — a rate limit, a bad gateway, a dropped connection — the connector gave up on it silently. Hummingbot stopped tracking the order; the exchan…

CRITICAL FIXES · ORDERS · MARKET MAKING · CONNECTOR · RATE-LIMITS · BOT CONSOLE · INTERFACE

If you run a PMM strategy on this connector, it has never placed an order.

CRITICAL FIXES · ORDER PLACEMENT · STRATEGY PRESETS · MARKET MAKING · CONNECTOR · PERPETUALS · CONNECTOR KIT · BOT INSTANCES · +4

An admin release. Nothing in the connector, the exchange API or the bot-facing paths changed — a bot that trades today trades identically after updating, and there is no connector to reinstall.

ADMIN · API KEYS · TRANSLATIONS · PERMISSIONS · ACCESS CONTROL · KILL-SWITCH · RATE LIMITS · AUDIT LOG · +4

Version 6.0.3 fixes order placement, which was failing 100% of the time, and order cancellation and lookup, which returned "not found" for every request. Between them these made the connector unusable for trading. On current Hummingbot releases the connecto…

CRITICAL FIXES · ORDER PLACEMENT · PERPETUALS · RATE LIMITS · API KEYS · SECURITY · CONNECTOR · INSTALLER · +8