zxian v17 is released. zxian is a ZX Spectrum emulator written in C, using SDL2 for graphics, input/output, and audio. As with my other projects, the source is available for download. I built it with Visual Studio Community 2019 (with C++ core features installed).

zxian v12 Changelog:
v17 - added support for taking screenshots
v16 - added support for CRT scanlines effect. Fixed a slowdown issue when using accelerated renderer. Removed an overly eager optimization which impacted CPU-screen sync - this fixes games where graphics are updated multiple times per frame
v15 - added fullscreen support
v14 - sound improvements via variable sync. This fixes sustained tones (such as the BEEP command in BASIC)
v13 - optimizations: reduced host CPU usage by 85%

Download: zxian v17
Source: Here