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+History of SeaBIOS releases. Please see [download](Download) for
+information on obtaining these releases.
+
+SeaBIOS 1.8.0
+=============
+
+Available on 20150218. Major changes in this release:
+
+* Several USB timing fixes for USB controllers on real hardware
+* Initial support for USB3 hubs
+* Initial support for SD cards (on QEMU only)
+* Initial support for transitioning to 32bit mode using SMIs (on QEMU
+  TCG only)
+* SeaVGABIOS improvements
+    * Added cursor emulation to coreboot native init vgabios (cbvga)
+    * Added support for read character calls when in graphics mode
+* Developer documentation added to "docs/" directory in the code
+  repository and several documentation updates
+* Several bug fixes and code cleanups
+
+As of the 1.8.0 release, new feature releases will modify the first
+two release numbers (eg, 1.8) and stable releases will use three
+numbers (eg, 1.8.1). The prior behavior of using a forth number
+(eg, 1.7.5.1) for stable releases will no longer be used.
+
+SeaBIOS 1.7.5
+=============
+
+Available on 20140528. Major changes in this release:
+
+* Support for obtaining SMBIOS tables directly from QEMU.
+* XHCI USB controller fixes for real hardware (now tested on several
+  boards)
+* SeaVGABIOS improvements
+    * New driver for "coreboot native vga" support
+    * Improved detection of older x86emu versions with incorrect
+      emulation.
+* Several bug fixes and code cleanups
+
+SeaBIOS 1.7.5.1
+---------------
+
+Available on 20141113. Stable release containing only bug fixes.
+
+SeaBIOS 1.7.5.2
+---------------
+
+Available on 20150112. Stable release containing only bug fixes.
+
+SeaBIOS 1.7.4
+=============
+
+Available on 20131223. Major changes in this release:
+
+* Support for obtaining ACPI tables directly from QEMU.
+* Initial support for XHCI USB controllers (initially for QEMU only).
+* Support for booting from "pvscsi" devices on QEMU.
+* Enhanced floppy driver - improved support for real hardware.
+* coreboot cbmem console support.
+* Optional support for using the 9-segment instead of the e-segment
+  for local variables.
+* Improved internal timer code and accuracy.
+* SeaVGABIOS improvements
+    * Better support for legacy X.org releases with incomplete x86emu
+      emulation.
+    * Support for using an internal stack to reduce caller's stack
+      usage.
+    * Back port of new "bochs dispi" interface video modes.
+* Several bug fixes and code cleanups
+    * Source code separated out into additional hardware and firmware
+      directories.
+    * Update to latest version of Kconfig
+
+SeaBIOS 1.7.3
+=============
+
+Available on 20130707. Major changes in this release:
+
+* Initial support for using SeaBIOS as a UEFI Compatibility Support
+  Module (CSM)
+* Support for detecting and using ACPI reboot ports.
+* By default, all 16bit entry points now use an internal stack to
+  reduce stack footprint.
+* Floppy controller code has been rewritten to improve
+  compatibility. Non-standard floppy sizes now work again with recent
+  QEMU versions.
+* Several bug fixes and code cleanups
+
+SeaBIOS 1.7.2
+=============
+
+Available on 20130118. Major changes in this release:
+
+* Support for ICH9 host chipset ("q35") on emulators
+* Support for booting from LSI MegaRAID SAS controllers
+* Support for using the ACPI PM timer on emulators
+* Improved Geode VGA BIOS support.
+* Several bug fixes
+
+SeaBIOS 1.7.2.1
+---------------
+
+Available on 20130227. Stable release containing only bug fixes.
+
+SeaBIOS 1.7.2.2
+---------------
+
+Available on 20130527. Stable release containing only bug fixes.
+
+SeaBIOS 1.7.1
+=============
+
+Available on 20120831. Major changes in this release:
+
+* Initial support for booting from USB attached scsi (USB UAS) drives
+* USB EHCI 64bit controller support
+* USB MSC multi-LUN device support
+* Support for booting from LSI SCSI controllers on emulators
+* Support for booting from AMD PCscsi controllers on emulators
+* New PCI allocation code on emulators. Support 64bit PCI bars and
+  mapping them above 4G.
+* Support for non-linear APIC ids on emulators.
+* Stack switching for 16bit real mode irq handlers to reduce stack
+  footprint.
+* Support for custom storage in the memory at 0xc0000-0xf0000. No
+  longer reserve memory for custom storage in first 640k.
+* Improved code generation for 16bit segment register loads
+* Boot code will now (by default) reboot after 60 seconds if no boot
+  device found
+* CBFS and FWCFG "files" are now only scanned one time
+* Several bug fixes
+
+SeaBIOS 1.7.0
+=============
+
+Available on 20120414. Major changes in this release:
+
+* Many enhancements to VGA BIOS code - it should now be feature
+  complete with LGPL vgabios.
+* Support for virtio-scsi.
+* Improved USB drive (usb-msc) support.
+* Several USB controller bug fixes and improvements.
+* Runtime ACPI AML PCI hotplug construction.
+* Support for running on i386 and i486 CPUs.
+* Enhancements to PCI init when running on emulators.
+* Several bug fixes
+
+SeaBIOS 1.6.3
+=============
+
+Available on 20111004. Major changes in this release:
+
+* Initial support for Xen
+* PCI init (on emulators) uses a two-phase initialization
+* Fixes for AHCI so it can work on real hardware. AHCI is now enabled
+  by default.
+* Bootsplash support for BMP files
+* Several configuration options can now be configured at runtime via
+  CBFS files (eg, "etc/boot-menu-wait")
+* PCI device scan is cached during POST phase
+* Several bug fixes
+
+The SeaBIOS 1.6.3 release was an incremental feature release. The
+first release number (1) was incremented as the project was no longer
+in a beta stage, and the third release number (3) was also incremented
+to indicate the release was a regular feature release.
+
+SeaBIOS 1.6.3.1
+---------------
+
+Available on 20111124. Stable release containing only bug fixes.
+
+SeaBIOS 1.6.3.2
+---------------
+
+Available on 20120311. Stable release containing only bug fixes.
+
+SeaBIOS 0.6.2
+=============
+
+Available on 20110228. Major changes in this release:
+
+* Setup code can relocate to high-memory to save space in c-f segments
+* Build now configured via Kconfig
+* Experimental support for AHCI controllers
+* Support for run-time configuration of the boot order (via
+  CBFS/fw_cfg "bootorder" file)
+* Support T13 EDD3.0 spec
+* Improved bounds checking on PCI memory allocation
+* Several bug fixes
+
+SeaBIOS 0.6.1
+=============
+
+Available on 20100913. Major changes in this release:
+
+* Support for virtio drives
+* Add ACPI definitions for cpu hotplug support
+* Support for a graphical bootsplash screen
+* USB mouse support
+* The PCI support for emulators is less dependent on i440 chipset
+* New malloc implementation which improves memalign and free
+* The build system no longer double links objects
+* Several bug fixes
+
+SeaBIOS 0.6.1.1
+---------------
+
+Available on 20101031. Stable release containing only bug fixes.
+
+SeaBIOS 0.6.1.2
+---------------
+
+Available on 20101113. Stable release containing only bug fixes.
+
+SeaBIOS 0.6.1.3
+---------------
+
+Available on 20101226. Stable release containing only bug fixes.
+
+SeaBIOS 0.6.0
+=============
+
+Available on 20100326. Major changes in this release:
+
+* USB hub support
+* USB drive booting support
+* USB keyboard auto-repeat support
+* USB EHCI controller support
+* Several improvements to compatibility of PS2 port handlers for old
+  code
+* Support for qemu e820 interface
+* Several bug fixes and code cleanups
+
+SeaBIOS 0.5.1
+=============
+
+Available on 20100108. Major changes in this release:
+
+* Support for 32bit PCI BIOS calls
+* Support for int1589 calls
+* MPTable fixes for OpenBSD
+* ATA DMA and bus-mastering support
+* Several bug fixes and code cleanups
+
+SeaBIOS 0.5.0
+=============
+
+Available on 20091218. Major changes in this release:
+
+* Several enhancements ported from the Bochs BIOS derived code in qemu
+  and kvm
+* Support for parallel hardware initialization to reduce bootup times
+* Enable PCI option rom support by default (Bochs users must now
+  enable CONFIG_OPTIONROMS_DEPLOYED in src/config.h). Support added
+  for extracting option roms from qemu "fw_cfg".
+* Support USB UHCI and OHCI controllers
+* Initial support for USB keyboards
+* SeaBIOS can now be greater than 64K
+* Support for permanent low memory allocations
+* APIC "local interrupts" now enabled in SeaBIOS (on emulators)
+* Several bug fixes and code cleanups
+
+SeaBIOS 0.4.2
+=============
+
+Available on 20090909. Major changes in this release:
+
+* Implement Post Memory Manager (PMM) support. Use equivalent "malloc"
+  functions for internal allocations as well.
+* Refactor disk "block" interface for greater expandability
+* Support CBFS based floppy images
+* Allow boot menu to select either floppy to boot from
+* Increase ebda size to store a CDROM harddrive/floppy emulation
+  buffer
+* Support systems with multiple vga cards (only the card with the
+  legacy IO ranges mapped will have its option rom executed)
+* Make option rom memory be writable during option rom execution (on
+  emulators)
+* Compile version number into code and report on each boot
+* Several bug fixes and code cleanups
+
+SeaBIOS 0.4.1
+=============
+
+Available on 20090714. Major changes in this release:
+
+* Support older versions of gcc that predate "-fwhole-program" (eg,
+  v3.x)
+* Add initial port of "LGPL vga bios" code into tree in "vgasrc/"
+  directory
+* Handle ATA drives still "spinning up" during SeaBIOS drive detect
+* Add support for option rom Boot Connection Vectors (BCV)
+* Enhance boot menu to support booting from any drive or any cdrom
+* Support flash based Coreboot File System (CBFS)
+* Support booting from a CBFS "payload"
+* Support coreboot table forwarder
+* Support compile time definitions for multiple root PCI buses
+* New tools/readserial.py tool
+* Several bug fixes and code cleanups
+
+SeaBIOS 0.4.0
+=============
+
+Available on 20090206. Major changes in this release:
+
+* Add Bios Boot Specification (BBS) calls; add PnP call stubs
+* Support option roms stored in PCI rom BAR
+* Support rebooting on ctrl+alt+delete key press
+* Scan PCI devices for ATA adapters (don't assume legacy ISA ATA ports
+  are valid)
+* Attempt to automatically determine gcc capabilities/bugs during
+  build
+* Add script to layout 16bit sections at fixed offsets and in
+  compacted space
+* Introduce timestamp counter based delays
+* Support POST calls that are really a resume
+* Use new stack in EBDA for int13 disk calls to reduce stack usage
+* Support the EBDA being relocated by option roms
+* Move many variables from EBDA to global variables (stored in
+  f-segment)
+* Support for PCI bridges when iterating through PCI device list
+* Initial port of several KVM specific features from their Bochs BIOS
+  derived code
+* Access BDA using segment 0x40 and IVT using segment 0x00 (which
+  could be important for 16bit protected mode callers)
+* Several bug fixes and code cleanups
+
+SeaBIOS 0.3.0
+=============
+
+Available on 20080817. Major changes in this release:
+
+* Run boot code (int18/19) in 32bit mode
+* Rewrite of PS2 port handling - new code is more compatible with real
+  hardware
+* Initial support for int155f VGA option rom calls
+* Several bug fixes and code cleanups
+
+SeaBIOS 0.2.3
+=============
+
+Available on 20080702. Major changes in this release:
+
+* Initial support for running on real hardware with coreboot
+* Support parsing coreboot tables
+* Support relocating bios tables from high memory when running under
+  coreboot
+* Dynamic e820 map generation
+* Serial debug support
+* New tools/checkstack.py tool
+* Several bug fixes and code cleanups
+
+SeaBIOS 0.2.2
+=============
+
+Formerly known as "legacybios". Available on 20080501. Major changes
+in this release:
+
+* Several bug fixes and code cleanups
+
+SeaBIOS 0.2.1
+=============
+
+Formerly known as "legacybios". Available on 20080406. Major changes
+in this release:
+
+* Port of boot menu code from Bochs BIOS
+* Several bug fixes and code cleanups
+
+SeaBIOS 0.2.0
+=============
+
+Formerly known as "legacybios". Available on 20080330. Major changes
+in this release:
+
+* Completion of initial port of Bochs BIOS code to gcc.