# Bcoin Release Notes & Changelog ## v1.0.0-beta.8 ### Notable Changes - __mempool__ - Fixed critical fee estimator bug causing throwing in the mempool. ## v1.0.0-beta.7 ### Notable Changes - __http__ - Always display spent coins in tx routes (e.g. `/tx/[txid]`). - __mempool__ - An on-disk mempool is now exposed via `--persistent-mempool` (also makes fee data persistent). - __chain__ - `chain.add` now takes a `flags` parameter to avoid POW and non-contextual checks if necessary. - __net__ - HostList is now potentially persistent with a `hostLocation` option. - __net__ - Smarter stall behavior and timeouts. ## v1.0.0-beta.6 ### Notable Changes - __http__ - Better bitcoind compatability for JSON-RPC. ## v1.0.0-beta.5 ### Notable Changes - __miner__ - Better fee rate comparisons. - __deps__ - Upgrade deps, fix build on arm and windows. ## v1.0.0-beta.4 ### Notable Changes - __miner__ - Optimized TX sorting. - __rpc__ - Improved getblocktemplate to provide more accurate results to bitcoind. ## v1.0.0-beta.3 ### Notable Changes - __miner__ - Improved fee rate sorting. - __rpc__ - Fix incompatibilities in rpc api (getblocktemplate & submitblock). ## v1.0.0-beta.2 ### Notable Changes - __pool__ - Increase max header chain failures to 500 (prevents the initial sync from reverting to getblocks so frequently). ## v1.0.0-beta.1 ### Notable Changes - __wsproxy__: Fixed proof of work handling in websocket proxy (43c491b). - __chain__: Optimized MTP and network target calculations (1e07d1b). - __wallet__: Implemented "smart" coin selection (304f0e7e). - __protocol__: Increased default network fees for main (09c2357). - __http__: Fix for handling `DELETE` http method (393dd5d). - __miner__: Improved handling of default reserved size and sigops (f2964e0 and 7104e4c). ## v1.0.0-beta ### Notable Changes - Initial tagged release.