ZEsarUX v9.1 Beta 1 is released. ZEsarUX is a ZX Machines Emulator for Unix, including: ZX Spectrum ; ZX-Uno ; ZX80 ; ZX81 ; Z88 ; Jupiter Ace ; Chloe 140 SE, Chloe 280 SE ; Prism ; Timex TS 2068 ; Amstrad CPC 464. ZEsarUX is Open-Source and runs on Windows, Mac OS X and Linux.

ZEsarUX Features:
* Runs on any Unix system and Windows: tested on Linux x86, Linux x86_64, Linux Raspbian, Mac OS X, Windows native, Windows + Cygwin
Emulates:
* Science of Cambridge MK14
* Sinclair ZX80
* Sinclair ZX81
* Spectrum models: 16k, 48k (English and Spanish), Inves Spectrum +, Spectrum 128k (English and Spanish), Spectrum +2 (English, Spanish and French), Spectrum +2A (English and Spanish), Spectrum +3 (English and Spanish), Microdigital TK90X (Portuguese and Spanish), TK95
* Sinclair QL
* Cambridge Z88
* Timex TS 2068
* Sam Coupe
Pentagon
* Chloe 140 SE, 280 SE
Chrome
Prism
ZX-Uno
* ZX-Evolution BaseConf
* ZX-Evolution TS-Conf
* TBBlue/ZX Spectrum Next
* Jupiter Ace
* Amstrad CPC 464
* Is the only emulator for machines: ZX-Uno, Chloe 140/280, Prism, TBBlue and Chrome
* Almost perfect emulation of timing of all Spectrum machines
* Supports undocumented Z80 flags, features, and MEMPTR register
* Supports idle bus port, contended memory, ULA early/late timings
* Supports Motorola CPU 68008 (Sinclair QL)
* Supports SC/MP CPU - INS8060 (MK14)
* Supports Pentagon timing
* Supports perfect ZX Spectrum 16k/48k colour palette
* Supports ULAplus: Standard 64 colour palette, linear modes with 16 colours per pixel: Radastan Mode: 128x96, ZEsarUX modes: 256x96, 128x192, 256x192
* Supports Chroma81 ZX81 Colour mode
* Supports Spectra Video Modes
* Supports Timex Video modes (Mode 0 standard, 1 dual screen, 2 hires colour 8x1, 6 512x192 monochrome)
* Supports All Video modes from Prism machine
* Supports ZGX Sprite Chip
* Supports snow effect on Spectrum models
* Supports interlaced, scanlines and Gigascreen effects
* Supports hi-res modes on ZX Spectrum (rainbow effects and others) and ZX80/ZX81 (UDG, CHR$128, WRX, HRG and some other hi-res modes)
* Supports reducing the screen to 192x144 (0.75 scale)
* Can be used with joystick and environments without keyboard, like Raspiboy / Retropie
* Emulates all the oddities of the Inves Spectrum +: 64 KB RAM, RAM initialization with FF00H pattern, OUT ula AND RAM, EAR and MIC XOR, no contended memory, snow in border, colour ula delay, interrupt starts at end of top border (not at the beginning of the border), corrupt memory on every interrupt, no idle bus
* Uses Video drivers: X-Windows, SDL, Cocoa (Mac OS X), Framebuffer, ncurses, aalib, cacalib, stdout(console), simpletext(console)
* Uses Audio Drivers: PulseAudio, Alsa, SDL, DSP(OSS), CoreAudio (Mac OS X).
* Supports dumping audio & video to file
* Supports real tape loading of file formats: RWA, SMP, WAV, TZX, CDT, TAP, P, O. It handles loading of turbo load tapes or any type of tape loading for standard/non standard loading routines
* Handles binary tape format files (TAP, TZX, O, P, CDT) on standard BASIC ROM routines for ZX Spectrum, ZX80, ZX81, Jupiter Ace
* Handles real audio loading (RWA, SMP, WAV) on standard BASIC ROM routines for ZX Spectrum, ZX80, ZX81, Amstrad CPC, Jupiter Ace
* Simulates real tape loading on standard BASIC ROM routines for ZX Spectrum, ZX80, ZX81
* Handles snapshot format: ZSF, ZX, Z80, SP, SPG, SNA (loading only), P, O, Z81 (loading only), ACE
* Handles RZX playback
* Emulates Multiface One, 128 and Three
* Handles DCK Timex dock cartridges
* Emulates +3 Disk
* Emulates Betadisk/TR-DOS
* Emulates ZX Spectrum MMC Interfaces: ZXMMC, DivMMC
* Emulates ZX Spectrum IDE Interface: DivIDE, 8-bit simple
* Emulates Sam Coupe IDE Interface: Atom Lite
* Emulates ZXPand MMC Interface on ZX80 and ZX81
* Emulates ZX Dandanator! Mini
* Emulates Speccy Superupgrade
* Emulates Kartusho
* Handles RAM, EPROM, Intel Flash and Hybrid (RAM+EPROM) cards on Z88
* Handles compressed formats zip, tar, rar, gz through external utilities
* Supports AY Chip, Turbosound (2 AY Channels), 3 AY Channels, different DAC: Specdrum, Covox
* Supports Quicksilva, ZON-X81, and VSYNC-based sound on ZX80/81
* Supports Speaker and Soundbox sound on Jupiter Ace
* Experimental simulation of the Sam Coupe Audio Chip (SAA1099)
* Supports RAM packs on ZX80/81 up to 56 KB
* Supports RAM packs on Jupiter Ace up to 35 KB
* Joystick emulation with real joystick (on Linux) and keyboard cursors: Kempston, Sinclair 1&2, Cursor Joystick, Cursor & Shift, OPQA, Fuller, Zebra, Mikro-Gen, ZXPand. Autofire function also
* On Screen keyboard useful when playing with joystick
* Emulates Spectrum keyboard ghosting error feature
* ZX Spectrum Recreated keyboard support
* Supports native turbo modes on ZX-Uno, Chloe, Prism and TBBlue and manual for other machines
* ZX Printer emulation
* Lightgun emulation: Almost perfect emulation of Gunstick from MHT Ingenieros S.L and experimental emulation of Magnum Light Phaser
* Kempston mouse emulation
* Supports Input spool text file to simulate keyboard press
* Supports reading Pokes from .POK files
* Supports playing .AY sound files
* Supports ZEsarUX remote command protocol (ZRCP). You can do enhanced debugging on ZEsarUX by using a telnet client.
* Can use a reduced Spectrum core, with some features disables, useful on slow devices, like Raspberry Pi 1/Zero
* Powerful debug features: Registers, Dissassemble, Conditional Breakpoints using text expressions, Watches, Step-to-step, Step-over, Runto, Show TV electron position, Load source code, Hexadecimal Dump, View Sprites, Find byte (useful to find POKEs), CPU Transaction log, View BASIC, verbose messages on console
* Accessibility support: Print char traps allows to capture generated text from almost any program or game, using standard ROM calls (RST 10H) or even non standard print character rutines. Can send generated text from a game to a text-to-speech program. It's ready for text to speech support for blind or visually impaired people. Menu emulator can be also read by a text-to-speech program.
* Simulates upper RAM memory refresh on Spectrum 48Kb, losing its contents when changing R register very quickly
* Supports command line settings, configuration file settings and per-game configuration settings
* Other features: Visualmem menu, CPU Statistics
* Includes three easter eggs: Can you find them? :)

ZEsarUX changelog:
Added compile setting to disable networking functions
Added pc speaker audio driver (for Linux only)
Added date & time field info to ZSF snapshots
Added F-key function to show windows in background without having to open the menu
Added configuration & command line setting to save keymap type
Added SNA to SCR file converter
Added SP to SCR file converter
Added Z80 to SCR file converter
Added P to SCR file converter
Added ZSF to SCR file converter
Added debug console as a menu window

Added ZRCP commands:
-qdos-get-open-files: to get open files from QL QDOS

Improved ZX Desktop:
-Added direct buttons, to access menu items
-Added devices buttons/icons, to show device activity and device configuration
-Reordered menu items
-Windows are not closed when changing ZX Desktop size
-Added new ZX Desktop fill types: RainbowAlive, Chess, Grid, Random
-Improved input number windows: added buttons to increase/decrease values

Improved loading .pok files: increased maximum pokes from 100 to 49152 pokes
Improved 1 bit resample audio filter
Improved ZRCP: Added MMU information to cpu-history command

Improved TBBlue emulation:
-Added emulation of tbblue joystick type (register 5)
-Added sprite zoom emulation
-Added relative sprites emulation
-Added sprite clipping emulation

Improved File Browser: added previews for screens (on .scr, .tap, .tzx, .pzx, .trd, .dsk, .sna, .sp, .z80, .p, .zsf)

Improved QL emulation:
-Added sound emulation
-Guessing of file name extension
-Show all registers on Debug CPU window
-Support ZSF snapshot

Fixed QL bugs:
-Fixed loading QL Superbasic programs when line lenght usually longer than 128 bytes
-Fixed loading executable files
-Fixed using QL system calls and A6 pointer offset used after previous Trap was not 4
-Fixed frame interrupt
-Fixed system call FS.SAVE
-Fixed system call FS.HEADS
-Fixed system call FS.HEADR
-Fixed system call IO.FSTRG
-Fixed system call IO.EDLIN
-Fixed system call IO.FCLOSE
-Fixed system call IO.DELET
-Fixed possible hang calling IO.SSTRG
-Fixed cursor flashing
-Fixed RTC emulation
-Fixed reading keyboard when menu open

Fixed reading keys on SDL and X11 drivers with default keymap and machines QL, MSX and Spectravideo
Fixed restoring machine to msx, coleco, sg1000 and svi
Fixed showing last core frame time in Core Statistics window

Fixed segfaults when changing machines and having ZX Desktop windows opened
Fixed easter egg and cyrillic characters
Fixed segfaults when initializing audio and video drivers
Fixed rendering ZX Desktop on startup
Fixed arranging ZX Vision windows when changing machine or disabling border
Fixed panic screen extracting tap when invalid block
Fixed open error when extracting tap with Spectrum names with '/'
Download: ZEsarUX v9.1 Beta 1
Source: Here