ZXMAK2 v2.7.4.0 Beta is released. ZXMAK2 is plugin based ZX Spectrum Virtual Machine. On the other side, this is flexible ZX Spectrum emulator. Project written in C#. Currently it works on Windows platform and using Managed DirectX.

Support the following ZX Spectrum clones:
- ZX Spectrum 48 (later model contended memory)
- ZX Spectrum 128 (later model contended memory)
- Pentagon 128
- SCORPION 256
- ATM 450
- PROFI 5xx
- QUORUM 256
- Leningrad 1
- Other (through custom configuration and plugins, for example LEC mod)

ZXMAK2 v2.7.4.0 Beta Changelog:
- major changes in memory emulation code;
- fix ATM710 memory module - completely rewritten according to the ATM710 hardware schema (thanks to zorel);
- BDI architecture changes (now there are two kind of BDI type: FDD controller for machines with native TRDOS support and BDI for classic ZX48/128 spectrum);
- added new roms to the ROMS.PAK

Download: ZXMAK2 v2.7.4.0 Beta
Source: Here