# v4.3.1-beta
- Fixed regression in v4.3.0, miner didn't create `cn` mining profile with default config example.
# v4.3.0-beta
- [#1227 ](https://github.com/xmrig/xmrig/pull/1227 ) Added new algorithm `rx/arq` , RandomX variant for upcoming ArQmA fork.
- [#808 ](https://github.com/xmrig/xmrig/issues/808#issuecomment-539297156 ) Added experimental support for persistent memory for CPU mining threads.
- [#1221 ](https://github.com/xmrig/xmrig/issues/1221 ) Improved RandomX dataset memory usage and initialization speed for NUMA machines.
# v4.2.1-beta
- [#1150 ](https://github.com/xmrig/xmrig/issues/1150 ) Fixed build on FreeBSD.
- [#1175 ](https://github.com/xmrig/xmrig/issues/1175 ) Fixed support for systems where total count of NUMA nodes not equal usable nodes count.
- [#1199 ](https://github.com/xmrig/xmrig/issues/1199 ) Fixed excessive memory allocation for OpenCL threads with low intensity.
- [#1212 ](https://github.com/xmrig/xmrig/issues/1212 ) Fixed low RandomX performance after fast algorithm switching.
# v4.2.0-beta
- [#1202 ](https://github.com/xmrig/xmrig/issues/1202 ) Fixed algorithm verification in donate strategy.
- Added per pool option `coin` with single possible value `monero` for pools without algorithm negotiation, for upcoming Monero fork.
- Added config option `cpu/max-threads-hint` and command line option `--cpu-max-threads-hint` .
# v4.1.0-beta
- **OpenCL backend disabled by default.**.
- [#1183 ](https://github.com/xmrig/xmrig/issues/1183 ) Fixed compatibility with systemd.
- [#1185 ](https://github.com/xmrig/xmrig/pull/1185 ) Added JIT compiler for RandomX on ARMv8.
- Improved API endpoint `GET /2/backends` and added support for this endpoint to [workers.xmrig.info ](http://workers.xmrig.info ).
- Added command line option `--no-cpu` to disable CPU backend.
- Added OpenCL specific command line options: `--opencl` , `--opencl-devices` , `--opencl-platform` , `--opencl-loader` and `--opencl-no-cache` .
- Removed command line option `--http-enabled` , HTTP API enabled automatically if any other `--http-*` option provided.
# v4.0.1-beta
- [#1177 ](https://github.com/xmrig/xmrig/issues/1177 ) Fixed compatibility with old AMD drivers.
- [#1180 ](https://github.com/xmrig/xmrig/issues/1180 ) Fixed possible duplicated shares after algorithm switching.
- Added support for case if not all backend threads successfully started.
- Fixed wrong config file permissions after write (only gcc builds on recent Windows 10 affected).
# v4.0.0-beta
- [#1172 ](https://github.com/xmrig/xmrig/issues/1172 ) **Added OpenCL mining backend.**
- [#268 ](https://github.com/xmrig/xmrig-amd/pull/268 ) [#270 ](https://github.com/xmrig/xmrig-amd/pull/270 ) [#271 ](https://github.com/xmrig/xmrig-amd/pull/271 ) [#273 ](https://github.com/xmrig/xmrig-amd/pull/273 ) [#274 ](https://github.com/xmrig/xmrig-amd/pull/274 ) [#1171 ](https://github.com/xmrig/xmrig/pull/1171 ) Added RandomX support for OpenCL, thanks [@SChernykh ](https://github.com/SChernykh ).
- Algorithm `cn/wow` removed, as no longer alive.
# v3.2.0
- Added per pool option `coin` with single possible value `monero` for pools without algorithm negotiation, for upcoming Monero fork.
- [#1183 ](https://github.com/xmrig/xmrig/issues/1183 ) Fixed compatibility with systemd.
# v3.1.3
- [#1180 ](https://github.com/xmrig/xmrig/issues/1180 ) Fixed possible duplicated shares after algorithm switching.
- Fixed wrong config file permissions after write (only gcc builds on recent Windows 10 affected).
# v3.1.2
- Many RandomX optimizations and fixes.
- [#1132 ](https://github.com/xmrig/xmrig/issues/1132 ) Fixed build on CentOS 7.
- [#1163 ](https://github.com/xmrig/xmrig/pull/1163 ) Optimized soft AES code, up to +30% hashrate on CPU without AES support and other optimizations.
- [#1166 ](https://github.com/xmrig/xmrig/pull/1166 ) Fixed crash when initialize dataset with big threads count (eg 272).
- [#1168 ](https://github.com/xmrig/xmrig/pull/1168 ) Optimized loading from scratchpad.
- [#1128 ](https://github.com/xmrig/xmrig/issues/1128 ) Fixed CMake 2.8 compatibility.
# v3.1.1
- [#1133 ](https://github.com/xmrig/xmrig/issues/1133 ) Fixed syslog regression.
- [#1138 ](https://github.com/xmrig/xmrig/issues/1138 ) Fixed multiple network bugs.
- [#1141 ](https://github.com/xmrig/xmrig/issues/1141 ) Fixed log in background mode.
- [#1142 ](https://github.com/xmrig/xmrig/pull/1142 ) RandomX hashrate improved by 0.5-1.5% depending on variant and CPU.
- [#1146 ](https://github.com/xmrig/xmrig/pull/1146 ) Fixed race condition in RandomX thread init.
- [#1148 ](https://github.com/xmrig/xmrig/pull/1148 ) Fixed, on Linux linker marking entire executable as having an executable stack.
- Fixed, for Argon2 algorithms command line options like `--threads` was ignored.
- Fixed command line options for single pool, free order allowed again.
# v3.1.0
- [#1107 ](https://github.com/xmrig/xmrig/issues/1107#issuecomment-522235892 ) Added Argon2 algorithm family: `argon2/chukwa` and `argon2/wrkz` .
# v3.0.0
- **[#1111](https://github.com/xmrig/xmrig/pull/1111) Added RandomX (`rx/test`) algorithm for testing and benchmarking.**
- **[#1036](https://github.com/xmrig/xmrig/pull/1036) Added RandomWOW (`rx/wow`) algorithm for [Wownero ](http://wownero.org/ ).**
- **[#1050](https://github.com/xmrig/xmrig/pull/1050) Added RandomXL (`rx/loki`) algorithm for [Loki ](https://loki.network/ ).**
- **[#1077](https://github.com/xmrig/xmrig/issues/1077) Added NUMA support via hwloc**.
- **Added flexible [multi algorithm ](doc/CPU.md ) configuration.**
- **Added unlimited switching between incompatible algorithms, all mining options can be changed in runtime.**
- [#257 ](https://github.com/xmrig/xmrig-nvidia/pull/257 ) New logging subsystem, file and syslog now always without colors.
- [#314 ](https://github.com/xmrig/xmrig-proxy/issues/314 ) Added donate over proxy feature.
- [#1007 ](https://github.com/xmrig/xmrig/issues/1007 ) Old HTTP API backend based on libmicrohttpd, replaced to custom HTTP server (libuv + http_parser).
- [#1010 ](https://github.com/xmrig/xmrig/pull/1010#issuecomment-482632107 ) Added daemon support (solo mining).
- [#1066 ](https://github.com/xmrig/xmrig/issues/1066#issuecomment-518080529 ) Added error message if pool not ready for RandomX.
- [#1105 ](https://github.com/xmrig/xmrig/issues/1105 ) Improved auto configuration for `cn-pico` algorithm.
- Added commands `pause` and `resume` via JSON RPC 2.0 API (`POST /json_rpc`).
- Added command line option `--export-topology` for export hwloc topology to a XML file.
- Breaked backward compatibility with previous configs and command line, `variant` option replaced to `algo` , global option `algo` removed, all CPU related settings moved to `cpu` object.
- Options `av` , `safe` and `max-cpu-usage` removed.
- Algorithm `cn/msr` renamed to `cn/fast` .
- Algorithm `cn/xtl` removed.
- API endpoint `GET /1/threads` replaced to `GET /2/backends` .
- Added global uptime and extended connection information in API.
- API now return current algorithm.
# Previous versions
[doc/CHANGELOG_OLD.md ](doc/CHANGELOG_OLD.md )
