Release write-ups & development notes
Release notes and development updates for Copperline. An RSS feed is available to subscribe to new announcements.
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22 August 2026
Copperline 0.17.0: Coppersynth, two sound boards, and CD32 discs that boot without a Kickstart
Coppersynth puts a General MIDI sound module with an SC-55-style front panel and MT-32 translation on the Amiga's MIDI cable with no ROMs, a MacroSystem Toccata and an MHI MPEG decoder board join the Zorro bus, every audio source gets its own stem and debugger row - and CD32 discs cold-boot on the bundled AROS ROM, a publisher kit builds single-game players, and gamepads work out of the box and drive the whole UI.
read the write-up > -
15 August 2026
Copperline 0.16.0: one-command WHDLoad, a game library, and a new Amiga game built on Copperline
A WHDLoad-installed game boots straight from its archive, the launcher grows a browsable game library with OpenRetro cover art,
read the write-up >--runwarp-boots freshly built Amiga executables for developers, storage gains a lide.device-compatible IDE board with ATAPI CD-ROM, OFS directory mounts that boot Kickstart 1.3 and a Create Image workshop - and a studio building a new commercial Amiga game on Copperline drove fixes from Agnus pointer semantics to floating-bus reads. -
8 August 2026
Copperline 0.15.0: an MT-32, your real hard disks, and sockets with nothing to install
An emulated Roland MT-32 - front panel and all - on the MIDI port, the host's real hard disks handed to the machine RDB and all, a HostSocket board giving guest applications BSD sockets with no TCP/IP stack to install, the physical floppy path rebuilt pure-Rust on FluxBridge, native IPF and CHD images, a redesigned menu tree, an authentic 1084 bezel, integer scaling and a performance overlay, and a browser build with a screen keyboard and real headroom on phones.
read the write-up > -
1 August 2026
Copperline 0.14.0: real drives, real networks, and a 1084 on your desk
Real 3.5" floppy drives on the emulated bus through DrawBridge, Greaseweazle and SupercardPro, the A2065 bridged onto the real LAN, Picasso II / II+ RTG for the 24-bit machines, CRT shaders, screen tints and a 1084-style bezel, rewind and quick-save slots, autofire and input remapping, an experimental JIT CPU mode, and a WinUAE-inspired debugging suite.
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25 July 2026
Copperline 0.13.0: RTG, Ethernet and a Linux login prompt
RTG graphics through the Z3660 Zorro III board, Ramsey motherboard and CPU-slot accelerator RAM for the big boxes, an Ethernet backend that needs no privileges or setup, a telnet BBS dialled over emulated serial, configurable floppy speed, and enough 68040 MMU and 31 kHz display work to boot Debian Linux/m68k to a login prompt.
read the write-up > -
24 July 2026
Copperline moves to its own GitHub organisation
The repositories have moved from my personal LinuxJedi account to a new GitHub organisation, CopperlineHQ, because Copperline is becoming a community bigger than just me. Repository names are unchanged, the old URLs keep redirecting for the foreseeable future, and a Discord server for development discussion is on the way.
read the note > -
18 July 2026
Copperline 0.12.0: the browser build and the big boxes
The whole emulator compiled to WebAssembly and running client-side at copperline.dev/try, A3000 / A4000 profiles booting from their onboard SCSI and IDE, host-directory mounts gone writable, a JSON-RPC control protocol for scripted live sessions, SCSI CD-ROM drives with CD audio, and any controller in either game port.
read the write-up > -
12 July 2026
Copperline 0.11.0: boot from a host directory
Host directories mounted - and booted - as live AmigaDOS volumes, the blitter's BLTPRI bus fence, a 68000 microcode write-ordering pass, sprite serialization measured against other emulators and real hardware, and a 6x cut in worst-case frame times on slower hosts.
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7 July 2026
Copperline 0.10.0: the 68060, the MMUs and a much bigger debugger
The 68060 joins the CPU line-up, the 68030 / 68040 gain real MMU and cache behaviour, the debugger grows a command console plus Video, Audio and IO Map tabs, and the A4091 SCSI board, MIDI and TCP serial bridges and zipped floppies arrive - much of it contributed.
read the write-up > -
29 June 2026
Copperline 0.9.0: the FPU deep-dive
An 80-bit 68881/68882 accuracy pass with pure-Rust softfloat, explicit joystick input selection, save states that restore without the original ROM, and the usual round of CIA, Paula, keyboard and display-timing fixes.
read the write-up > -
27 June 2026
Copperline 0.8.0
The no-config machine launcher, external WASM Zorro board plugins, A2065 Ethernet with a loopback backend, and a long list of sprite, Denise and bitplane timing fixes.
release notes on GitHub > -
25 June 2026
Copperline 0.7.0
Expanded machine profiles (A500 Rev 6A, A500OCS, A500+, A1000), conditional and counted breakpoints, warp-speed frame skipping, and the first macOS .dmg release builds.
release notes on GitHub >
Earlier releases live on the GitHub releases page. Full write-ups start at 0.9.0; from here on, every release gets one.