[#946](https://github.com/xmrig/xmrig/pull/946) Optimized software AES implementations for CPUs without hardware AES support. `cn/r`, `cn/wow` up to 2.6 times faster, 4-9% improvements for other algorithms.
- **[#938](https://github.com/xmrig/xmrig/issues/938) Added support for new algorithm `cryptonight/r`, short alias `cn/r` (also known as CryptoNightR or CryptoNight variant 4), for upcoming [Monero](https://www.getmonero.org/) fork on March 9, thanks [@SChernykh](https://github.com/SChernykh).**
- [#939](https://github.com/xmrig/xmrig/issues/939) Added support for dynamic (runtime) pools reload.
- [#932](https://github.com/xmrig/xmrig/issues/932) Fixed `cn-pico` hashrate drop, regression since v2.11.0.
- [#929](https://github.com/xmrig/xmrig/pull/929) Added support for new algorithm `cryptonight/wow`, short alias `cn/wow` (also known as CryptonightR), for upcoming [Wownero](http://wownero.org) fork on February 14.
- [#928](https://github.com/xmrig/xmrig/issues/928) Added support for new algorithm `cryptonight/gpu`, short alias `cn/gpu` (original name `cryptonight-gpu`), for upcoming [Ryo currency](https://ryo-currency.com) fork on February 14.
- [#749](https://github.com/xmrig/xmrig/issues/749) Added support for detect hardware AES in runtime on ARMv8 platforms.
- [#292](https://github.com/xmrig/xmrig/issues/292) Fixed build on ARMv8 platforms if compiler not support hardware AES.
- [#168](https://github.com/xmrig/xmrig-proxy/issues/168) Added support for [mining algorithm negotiation](https://github.com/xmrig/xmrig-proxy/blob/dev/doc/STRATUM_EXT.md#1-mining-algorithm-negotiation).
- Added IPBC coin support, base algorithm `cn-lite` variant `ipbc`.
- [#581](https://github.com/xmrig/xmrig/issues/581) Added support for upcoming Stellite (XTL) fork, base algorithm `cn` variant `xtl`, variant can set now, no need do it after fork.
- Added support for **rig-id** stratum protocol extensions, compatible with xmr-stak.
- Changed behavior for option `variant=-1` for `cryptonight`, now variant is `1` by default, if you mine old coins need change `variant` to `0`.
- A lot of small fixes and better unification with proxy code.
# v2.6.0-beta3
- [#563](https://github.com/xmrig/xmrig/issues/563) **Added [advanced threads mode](https://github.com/xmrig/xmrig/issues/563), now possible configure each thread individually.**
- [#255](https://github.com/xmrig/xmrig/issues/563) Low power mode extended to **triple**, **quard** and **penta** modes.
- [#519](https://github.com/xmrig/xmrig/issues/519) Fixed high donation levels, improved donation start time randomization.
- [#554](https://github.com/xmrig/xmrig/issues/554) Fixed regression with `print-time` option.
# v2.6.0-beta2
- Improved performance for `cryptonight v7` especially in double hash mode.
- [#499](https://github.com/xmrig/xmrig/issues/499) IPv6 disabled for internal HTTP API by default, was causing issues on some systems.
- Added short aliases for algorithm names: `cn`, `cn-lite` and `cn-heavy`.
- Fixed regressions (v2.6.0-beta1 affected)
- [#494](https://github.com/xmrig/xmrig/issues/494) Command line option `--donate-level` was broken.
- [#502](https://github.com/xmrig/xmrig/issues/502) Build without libmicrohttpd was broken.
- Fixed nonce calculation for `--av 4` (software AES, double hash) was causing reduction of effective hashrate and rejected shares on nicehash.
# v2.6.0-beta1
- [#476](https://github.com/xmrig/xmrig/issues/476) **Added Cryptonight-Heavy support for Sumokoin ASIC resistance fork.**
- HTTP server now runs in main loop, it make possible easy extend API without worry about thread synchronization.
- Added initial graceful reload support, miner will reload configuration if config file changed, disabled by default until it will be fully implemented and tested.
- Added API endpoint `PUT /1/config` to update current config.
- Added API endpoint `GET /1/config` to get current active config.
- Added API endpoint `GET /1/threads` to get current active threads configuration.
- API endpoint `GET /` now deprecated, use `GET /1/summary` instead.
- Added `--api-no-ipv6` and similar config option to disable IPv6 support for HTTP API.
- Added `--api-no-restricted` to enable full access to api, this option has no effect if `--api-access-token` not specified.
# v2.5.3
- Fixed critical bug, in some cases miner was can't recovery connection and switch to failover pool, version 2.5.2 affected. If you use v2.6.0-beta3 this issue doesn't concern you.
- [#499](https://github.com/xmrig/xmrig/issues/499) IPv6 support disabled for internal HTTP API.
- Added workaround for nicehash.com if you use `cryptonightv7.<region>.nicehash.com` option `variant=1` will be set automatically.
- [#98](https://github.com/xmrig/xmrig/issues/98) Ignore `keepalive` option with minergate.com and nicehash.com.
- [#101](https://github.com/xmrig/xmrig/issues/101) Fixed MSVC 2017 (15.3) compile time version detection.
- [#108](https://github.com/xmrig/xmrig/issues/108) Silently ignore invalid values for `donate-level` option.
- [#111](https://github.com/xmrig/xmrig/issues/111) Fixed build without AEON support.
# v2.3.1
- [#68](https://github.com/xmrig/xmrig/issues/68) Fixed compatibility with Docker containers, was nothing print on console.
# v2.3.0
- Added `--cpu-priority` option (0 idle, 2 normal to 5 highest).
- Added `--user-agent` option, to set custom user-agent string for pool. For example `cpuminer-multi/0.1`.
- Added `--no-huge-pages` option, to disable huge pages support.
- [#62](https://github.com/xmrig/xmrig/issues/62) Don't send the login to the dev pool.
- Force reconnect if pool block miner IP address. helps switch to backup pool.
- Fixed: failed open default config file if path contains non English characters.
- Fixed: error occurred if try use unavailable stdin or stdout, regression since version 2.2.0.
- Fixed: message about huge pages support successfully enabled on Windows was not shown in release builds.
# v2.2.1
- Fixed [terminal issues](https://github.com/xmrig/xmrig-proxy/issues/2#issuecomment-319914085) after exit on Linux and OS X.
# v2.2.0
- [#46](https://github.com/xmrig/xmrig/issues/46) Restored config file support. Now possible use multiple config files and combine with command line options also added support for default config.
- Improved colors support on Windows, now used uv_tty, legacy code removed.
- QuickEdit Mode now disabled on Windows.
- Added interactive commands in console window:: **h**ashrate, **p**ause, **r**esume.
- Fixed autoconf mode for AMD FX CPUs.
# v2.1.0
- [#40](https://github.com/xmrig/xmrig/issues/40)
Improved miner shutdown, fixed crash on exit for Linux and OS X.
- Fixed, login request was contain malformed JSON if username or password has some special characters for example `\`.
- [#220](https://github.com/fireice-uk/xmr-stak-cpu/pull/220) Better support for Round Robin DNS, IP address now always chosen randomly instead of stuck on first one.
- Changed donation address, new [xmrig-proxy](https://github.com/xmrig/xmrig-proxy) is coming soon.
# v2.0.2
- Better deal with possible duplicate jobs from pool, show warning and ignore duplicates.
- For Windows builds libuv updated to version 1.13.1 and gcc to 7.1.0.
# v2.0.1
- [#27](https://github.com/xmrig/xmrig/issues/27) Fixed possibility crash on 32bit systems.
- [#15](https://github.com/xmrig/xmrig/issues/15) Added option `-l, --log-file=FILE` to write log to file.
- [#15](https://github.com/xmrig/xmrig/issues/15) Added option `-S, --syslog` to use syslog for logging, Linux only.
- [#18](https://github.com/xmrig/xmrig/issues/18) Added nice messages for accepted/rejected shares with diff and network latency.
- [#20](https://github.com/xmrig/xmrig/issues/20) Fixed `--cpu-affinity` for more than 32 threads.
- Fixed Windows XP support.
- Fixed regression, option `--no-color` was not fully disable colored output.
- Show resolved pool IP address in miner output.
# v1.0.1
- Fix broken software AES implementation, app has crashed if CPU not support AES-NI, only version 1.0.0 affected.
# v1.0.0
- Miner complete rewritten in C++ with libuv.
- This version should be fully compatible (except config file) with previos versions, many new nice features will come in next versions.
- This is still beta. If you found regression, stability or perfomance issues or have an idea for new feature please fell free to open new [issue](https://github.com/xmrig/xmrig/issues/new).
- Added new option `--print-time=N`, print hashrate report every N seconds.
- New hashrate reports, by default every 60 secons.
- Added Microsoft Visual C++ 2015 and 2017 support.
- Removed dependency on libcurl.
- To compile this version from source please switch to [dev](https://github.com/xmrig/xmrig/tree/dev) branch.
