* feat(Exchange): add class tag (21001) [4f70a01be4](https://github.com/ccxt/ccxt/commits/4f70a01be4ea674b80e6d98b2409d88c8a2cef51)
* feat(bitforex): cancelAllOrders (21004) [0b090448be](https://github.com/ccxt/ccxt/commits/0b090448be2bf5c9efef3fd8fd7fc26835ba16cf)
* has["cancelAllOrders"] (21005) [6aab24e52e](https://github.com/ccxt/ccxt/commits/6aab24e52ef3e7f774b07d83779044f179383e6e)
* Bitfinex2: setMargin (21008) [ed99d45aae](https://github.com/ccxt/ccxt/commits/ed99d45aaeebce9e4060f2adc8b60565dcc85ef4)
* bitfinex2: fetchBalance, debt field (21009) [c735dd750d](https://github.com/ccxt/ccxt/commits/c735dd750dba8ba9750f8a74f639280848112107)
* 4.2.28 [1865386efd](https://github.com/ccxt/ccxt/commits/1865386efdd156429d3831f7caf7c7aaafbe0133)