### 19th May 2019

PCem v15 released. Changes from v14 :

- New machines added - Zenith Data SupersPort, Bull Micral 45, Tulip AT Compact, Amstrad PPC512/640, Packard Bell PB410A, ASUS P/I-P55TVP4, ASUS P/I-P55T2P4, Epox P55-VA, FIC VA-503+
- New graphics cards added - Image Manager 1024, Sigma Designs Color 400, Trigem Korean VGA
- Added emulation of AMD K6 family and IDT Winchip 2
- New CPU recompiler. This provides several optimisations, and the new design allows for greater portability and more scope for optimisation in the future
- Experimental ARM and ARM64 host support
- Read-only cassette emulation for IBM PC and PCjr
- Numerous bug fixes

Thanks to dns2kv2, Greatpsycho, Greg V, John Elliott, Koutakun, leilei, Martin_Riarte, rene, Tale and Tux for contributions towards this release.

### 20th April 2018

PCem v14 released. Changes from v13.1 :

- New machines added - Compaq Portable Plus, Compaq Portable II, Elonex PC-425X, IBM PS/2 Model 70 (types 3 & 4), Intel Advanced/ZP, NCR PC4i, Packard Bell Legend 300SX, Packard Bell PB520R, Packard Bell PB570, Thomson TO16 PC, Toshiba T1000, Toshiba T1200, Xi8088
- New graphics cards added - ATI Korean VGA, Cirrus Logic CL-GD5429, Cirrus Logic CL-GD5430, Cirrus Logic CL-GD5435, OAK OTI-037, Trident TGUI9400CXi
- New network adapters added - Realtek RTL8029AS
- Iomega Zip drive emulation
- Added option for default video timing
- Added dynamic low-pass filter for SB16/AWE32 DSP playback
- Can select external video card on some systems with built-in video
- Can use IDE hard drives up to 127 GB
- Can now use 7 SCSI devices
- Implemented CMPXCHG8B on Winchip. Can now boot Windows XP on Winchip processors
- CD-ROM emulation on OS X
- Tweaks to Pentium and 6x86 timing
- Numerous bug fixes

Thanks to darksabre76, dns2kv2, EluanCM, Greatpsycho, ja've, John Elliott, leilei and nerd73 for contributions towards this release.

### 17th December 2017

PCem v13.1 released. This is a quick bugfix release, with the following changes from v13 :

- Minor recompiler tweak, fixed slowdown in some situations (mainly seen on Windows 9x just after booting)
- Fixed issues with PCJr/Tandy sound on some Sierra games
- Fixed plasma display on Toshiba 3100e
- Fixed handling of configurations with full stops in the name
- Fixed sound output gain when using OpenAL Soft
- Switched to using OpenAL Soft by default

### 12th December 2017

Re-uploaded v13 Windows archive with missing mda.rom included - please re-download if you've been having issues.

### 11th December 2017

PCem v13 released. Changes from v12 :

- New machines added - Atari PC3, Epson PC AX, Epson PC AX2e, GW-286CT GEAR, IBM PS/2 Model 30-286, IBM PS/2 Model 50, IBM PS/2 Model 55SX, IBM PS/2 Model 80, IBM XT Model 286, KMX-C-02, Samsung SPC-4200P, Samsung SPC-4216P, Toshiba 3100e
- New graphics cards - ATI Video Xpression, MDSI Genius
- New sound cards added - Disney Sound Source, Ensoniq AudioPCI (ES1371), LPT DAC, Sound Blaster PCI 128
- New hard drive controllers added - AT Fixed Disk Adapter, DTC 5150X, Fixed Disk Adapter (Xebec), IBM ESDI Fixed Disk Controller, Western Digital WD1007V-SE1
- New SCSI adapters added - Adaptec AHA-1542C, BusLogic BT-545S, Longshine LCS-6821N, Rancho RT1000B, Trantor T130B
- New network adapters added - NE2000 compatible
- New cross-platform GUI
- Voodoo SLI emulation
- Improvements to Sound Blaster emulation
- Improvements to Pentium timing
- Various bug fixes
- Minor optimisations

Thanks to AmatCoder, basic2004, bit, dns2k, ecksemess, Greatpsycho, hOMER247, James-F, John Elliott, JosepMa, leilei, neozeed, ruben_balea, SA1988 and tomaszkam for contributions towards this release.

### 18th February 2017

PCem v12 released. Changes from v11 :

- New machines added - AMI 386DX, MR 386DX
- New graphics cards - Plantronics ColorPlus, Wyse WY-700, Obsidian SB50, Voodoo 2
- CPU optimisations - up to 50% speedup seen
- 3DFX optimisations
- Improved joystick emulation - analogue joystick up to 8 buttons, CH Flightstick Pro, ThrustMaster FCS, SideWinder pad(s)
- Mouse can be selected between serial, PS/2, and IntelliMouse
- Basic 286/386 prefetch emulation - 286 & 386 performance much closer to real systems
- Improved CGA/PCjr/Tandy composite emulation
- Various bug fixes

Thanks to Battler, leilei, John Elliott, Mahod, basic2004 and ecksemmess for contributions towards this release.

### 7th June 2016

Updated v11 binary - anyone who's been having problems with Voodoo emulation should re-download.

### 5th June 2016

PCem v11 released. Changes from v10.1 :

- New machines added - Tandy 1000HX, Tandy 1000SL/2, Award 286 clone, IBM PS/1 model 2121
- New graphics card - Hercules InColor
- 3DFX recompiler - 2-4x speedup over previous emulation
- Added Cyrix 6x86 emulation
- Some optimisations to dynamic recompiler - typically around 10-15% improvement over v10, more when MMX used
- Fixed broken 8088/8086 timing
- Fixes to Mach64 and ViRGE 2D blitters
- XT machines can now have less than 640kb RAM
- Added IBM PS/1 audio card emulation
- Added Adlib Gold surround module emulation
- Fixes to PCjr/Tandy PSG emulation
- GUS now in stereo
- Numerous FDC changes - more drive types, FIFO emulation, better support of XDF images, better FDI support
- CD-ROM changes - CD-ROM IDE channel now configurable, improved disc change handling, better volume control support
- Now directly supports .ISO format for CD-ROM emulation
- Fixed crash when using Direct3D output on Intel HD graphics
- Various other fixes

Thanks to Battler, SA1988, leilei, Greatpsycho, John Elliott, RichardG867, ecksemmess and cooprocks123e for contributions towards this release.

### 7th November 2015

PCem v10.1 released. This is a minor bugfix release. Changes from v10 :

- Fixed buffer overruns in PIIX and ET4000/W32p emulation
- Add command line options to start in fullscreen and to specify config file
- Emulator doesn't die when the CPU jumps to an unexecutable address
- Removed Voodoo memory dump on exit

### 24th October 2015

PCem v10 released. Changes from v9 :

- New machines - AMI XT clone, VTech Laser Turbo XT, VTech Laser XT3, Phoenix XT clone, Juko XT clone, IBM PS/1 model 2011, Compaq Deskpro 386, DTK 386SX clone, Phoenix 386 clone, Intel Premiere/PCI, Intel Advanced/EV
- New graphics cards - IBM VGA, 3DFX Voodoo Graphics
- Experimental dynamic recompiler - up to 3x speedup
- Pentium and Pentium MMX emulation
- CPU fixes - fixed issues in Unreal, Half-Life, Final Fantasy VII, Little Big Adventure 2, Windows 9x setup, Coherent, BeOS and others
- Improved FDC emulation - more accurate, supports FDI images, supports 1.2MB 5.25" floppy drive emulation, supports write protect correctly
- Internal timer improvements, fixes sound in some games (eg Lion King)
- Added support for up to 4 IDE hard drives
- MIDI OUT code now handles sysex commands correctly
- CD-ROM code now no longer crashes Windows 9x when CD-ROM drive empty
- Fixes to ViRGE, S3 Vision series, ATI Mach64 and OAK OTI-067 cards
- Various other fixes/changes

Thanks to te_lanus, ecksemmess, nerd73, GeeDee, Battler, leilei and kurumushi for contributions towards this release.

### 4th October 2014

PCem v9 released. Changes from v8.1 :

- New machines - IBM PCjr
- New graphics cards - Diamond Stealth 3D 2000 (S3 ViRGE/325), S3 ViRGE/DX
- New sound cards - Innovation SSI-2001 (using ReSID-FP)
- CPU fixes - Windows NT now works, OS/2 2.0+ works better
- Fixed issue with port 3DA when in blanking, DOS 6.2/V now works
- Re-written PIT emulation
- IRQs 8-15 now handled correctly, Civilization no longer hangs
- Fixed vertical axis on Amstrad mouse
- Serial fixes - fixes mouse issues on Win 3.x and OS/2
- New Windows keyboard code - should work better with international keyboards
- Changes to keyboard emulation - should fix stuck keys
- Some CD-ROM fixes
- Joystick emulation
- Preliminary Linux port

Thanks to HalfMinute, SA1988 and Battler for contributions towards this release.

### 3rd January 2014

PCem v8.1 released. This fixes a number of issues in v8.

### 20th December 2013

PCem v8 released. Changes from v0.7 :

- New machines - SiS496/497, 430VX
- WinChip emulation (including MMX emulation)
- New graphics cards - S3 Trio64, Trident TGUI9440AGi, ATI VGA Edge-16, ATI VGA Charger, OAK OTI-067, ATI Mach64
- New sound cards - Adlib Gold, Windows Sound System, SB AWE32
- Improved GUS emulation
- MPU-401 emulation (UART mode only) on SB16 and AWE32
- Fixed DMA bug, floppy drives work properly in Windows 3.x
- Fixed bug in FXAM - fixes Wolf 3D, Dogz, some other stuff as well
- Other FPU fixes
- Fixed serial bugs, mouse no longer disappears in Windows 9x hardware detection
- Major reorganisation of CPU emulation
- Direct3D output mode
- Fullscreen mode
- Various internal changes

### 13th July 2013

PCem is now in source control at http://www.retrosoftware.co.uk/hg/pcem.

### 3rd August 2012

PCem v0.7 released. Windows 98 now works, Win95 more stable, more machines + graphics cards, and a huge number of fixes.

### 19th December 2011

PCem v0.6 released. Windows 95 now works, FPU emulation, and load of other stuff.

### 23rd September 2011

Uploaded a fixed version of PCem v0.5, which has working sound.

### 21st September 2011

PCem v0.5 released. Loads of fixes + new features in this version.

### 13th February 2011

PCem v0.41a released. This fixes a disc corruption bug, and re-adds (poor) composite colour emulation.

### 1st February 2011

PCem v0.41 released. This fixes some embarassing bugs in v0.4, as well as a few games.

### 27th July 2010

PCem v0.4 released. 386/486 emulation (buggy), GUS emulation, accurate 8088/8086 timings, and lots of other changes.

### 30th July 2008

PCem v0.3 released. This adds more machines, SB Pro emulation, SVGA emulation, and some other stuff.

### 14th October 2007

PCem v0.2a released. This is a bugfix release over v0.2.

### 10th October 2007

PCem v0.2 released. This adds PC1640 and AT emulation, 286 emulation, EGA/VGA emulation, Soundblaster emulation, hard disc emulation, and some bugfixes.

### 19th August 2007

PCem archive updated with (hopefully) bugfixed version.

### 15th August 2007

PCem v0.1 released. This is a new emulator for various old XT-based PCs.