The third beta of the new release is out (note that 4.1b wasn't released as we found some small bugs before it was out). You can download PhoenixMiner 4.1c from here:

https://mega.nz/#F!TZl1WYiQ!V5yaqEluopPIahWVEwo9MA (MEGA)

If you want to check the integrity of the downloaded file, please use the following hashes:

Code:

File: PhoenixMiner_4.1c_Windows.zip
===================================
SHA-1: 695f269c335f7d525ecf96450702d643f15af98a
SHA-256: 93c3678a324fe677076cd746222dfec8e26be0fc758f0df080e14d6a5c8c4b91
SHA-512: 7c8544a3bfd367872b624b9e1bda12d1b5484a08d6e4d0a25abec2654242ceaf1df3a29fcd86e0a5bfd71927d1bda1ad716fc6d52a9cbddb714a8c521bb8db7b

File: PhoenixMiner_4.1c_Linux.tar.gz
====================================
SHA-1: 981dc17b1f51d56a1d025940c936a779f3be9198
SHA-256: 26d07ecb98c4d49205894224503a9faa4a1b5c5750875899cded22e5f2506815
SHA-512: c02c6baef626039de1070ca5e049c5a65986fa0e86ad64fdc019fe30599fd664238c20f1ab1cd7e3a68c82c9f54d16032a323e481018a0044881767104f44120

Here are the changes since 4.1a (the first beta of 4.1):

Added support for turbo kernels (-clkernel 3) and dual mining
Added command-line option -vs to just print the version (e.g. 4.1c) and exit
Added command-line option -wdtimeout to set the timeout of the watchdog timer. The valid values are from 30 to 300 seconds, the default is 45 seconds.
Added support for Windows AMD drivers 19.1.1
Small bugfixes

Here are the changes since 4.0b (the previous stable release):

Added faster "turbo" kernels (-clkernel 3) for AMD 470/480/570/580 GPUs. These are usually faster than normal kernels (-clkernel 1 or -clkernel 2) but require double the amount of VRAM. This means that you can only use them on 8 GB cards if mining ETH or ETC. You can use them on cards with 4 GB or less VRAM only if you are mining low DAG epoch coins.
Added Blake2s dual mining kernels, and green kernels for AMD Fury GPUs
Added Blake2s dual mining kernels for AMD 280/285/290/380/390 GPUs
New faster kernels for AMD 280/290/390 GPUs
Added alternative kernels (-clkernel 2) for AMD 280 GPUs
Added options -pauseat and -resumeat for scheduled pausing and resuming of the miner. Example: -resumeat 22:00 -pauseat 6:00 - the miner will mine only between 22:00 and 6:00. Example 2: -resumeat 22:00,12:00 -pauseat 6:00,16:00 - you can specify multiple pause and resume times.
(Windows only) The miner now prevents the computer from sleeping if the mining is not paused, and wakes the computer when it must resume mining at the time specified with -resumeat command-line option. In combination with -pauseat and -resumeat options this allows you to mine only when the electricity rates are lower and to keep your rig(s) asleep the rest of the time.
When the miner is paused for more than a few minutes, the pool is disconnected. The pool connection is restored when the mining is resumed.
Added a watchdog protection against freezing of the network connection thread
Automatic selection of compatible devfee coin if there isn't enough VRAM to mine ETH and the main coin can't be recognized or isn't supported for devfee
Automatic switch to the next pool if the cards VRAM is not enough for the requited DAG epoch. This is especially useful if the pool is auto-switching the coins but your cards only support lower DAG epoch coins.
Added a -rvram option to set the minimal reserved VRAM that can't be used for mining. The default values are 384 MB on Windows, and 128 MB on Linux. You can also set -rvram -1 if you want to turn off the protection against using too much VRAM.
Added support for Windows AMD drivers 18.12.x
Other small improvements and fixes

Finally, please note that the versions of PhoenixMiner before 4.0 only support DAG epoch up to 235. Currently ETC is above this, and ETH is going to be on epoch 236 very soon. If you want to continue to mine ETH and ETCH, you must upgrade to PhoenixMiner 4.x.