Partition Logic full changelog

All of the background wallpaper images are new, the colours have changed slightly, and a number of the GUI components have had their appearances updated.
Menus have been updated for the German, Spanish, Russian and Turkish languages.
Added wide-character and multibyte character (UTF-8) support throughout the operating system – to the fonts and charsets, the GUI, the C library, etc. It has replaced the ISO-based internationalization schemes. Although some knowledge of ISO codepages was kept, things have been more-or-less entirely switched over to Unicode.
Added VMware mouse integration, so that a Partition Logic guest coordinates with the host to automatically grab or ungrab the mouse cursor as it enters or leaves the window. Requires the option to be enabled in VMware.

Added proper support for composite USB devices, treating each interface as a separate device at the kernel level.
The CPU driver no longer determines the CPU frequency using the RTC, but rather using the system timer and a short countdown. This shortens the boot time by 1-2 seconds.
It is now possible to drag scrollbars and sliders without keeping the mouse pointer strictly within the component or window.
Added language-specific kernel configuration files for Spanish and German

Added proper support for composite USB devices, treating each interface as a separate device at the kernel level.
The CPU driver no longer determines the CPU frequency using the RTC, but rather using the system timer and a short countdown. This shortens the boot time by 1-2 seconds.
It is now possible to drag scrollbars and sliders without keeping the mouse pointer strictly within the component or window.
Added language-specific kernel configuration files for Spanish and German

Did a fairly major overhaul of the EXT filesystem driver, adding more adaptive feature support, plus support for EXT4 flexible block groups and basic support for EXT4 extent-based files. Also fixed a little bug in the formatting functionality (setting the EXT_INCOMPAT_FILETYPE flag in the superblock).
Improved the new APIC driver so that it considers the correct priority order when returning the number of the active interrupt. This fixes failures when using the VirtualBox emulator, and some failures seen with the Qemu emulator.
Partition Logic is slowly transitioning away from the notion of ‘cylinders’, and towards showing the user units of sectors, megabytes, etc.
Some modern systems don’t allow manual control the A20 address line, but work anyway. The OS loader will still print an error message, but it will no longer terminate booting with a fatal error in such cases.

Added Spanish and German translations for many of the user programs and GUI features. The user can select their language at the initial splash window.
Implemented a full SATA (AHCI) driver.
Implemented an ATAPI-over-USB driver for USB CD/DVD drives.
The code that detects GPT partition tables now checks whether the MS-DOS “guard table” is really a guard table, for more reliable GPT detection.
Improved SCSI disk initialization and fixed USB mass storage error detection.
Improved timing precision for IDE port polling timeouts and channel resets.
The USB 2 (EHCI) driver now handles controller-level error interrupts (host system errors).
The disk caching code now does more combining of cache entries for improved performance, reducing the number of disk writes.
Some memory management code has been reworked.

# Added initial USB2 (EHCI) support.
# Added a stub USB3 (XHCI) driver.
# Improved the output of the Devices program so that it's a little bit more readable.
# Improved the collection and recording of the CPU vendor string.
# Did a bit more development of the simple ACPI driver.
# Fixed: USB hub detection could happen twice - once during the controller's initial device connection detection, and again when device driver detection happened for hubs.
# Fixed: The first (number 1) USB port didn't work on many systems.
# Fixed: Certain USB hard disks not working, and/or causing boot failure.
# Fixed: The AHCI driver no longer fails to initialize if PCI bus mastering can't be enabled.
# Fixed: ACPI (soft) power off could cause some systems not to boot the operating system on the next attempt.
# Fixed: Removed possible infinite loop condition in the 'real time clock' driver.

# Implemented USB booting.
# Added a USB blank-image file and a script for installing into it.
# Improved detection of USB devices by always separating hotplug behaviour from coldplug detection at boot time.
# USB 2.0 (EHCI) controllers are detected and disabled (reset) so that they don't interfere with access to the legacy USB 1.1 UHCI ports.
# Search all 255 possible PCI buses, not just the first 10. It's slower to search them all, but some devices have been seen to reside on e.g. the 17th bus.
# Improved recognition of PCI device classes and subclasses.
# Added support for multiple buses of any type (such as PCI and USB)
# Implemented a partial ACPI power management driver, so that the shutdown command can power off the system.
# Updated GPT GUIDs for partition types, and moved the definitions and descriptions into the header file src/include/sys/guid.h

# Updated the appearance of windows and several types of widgets.
# Added 64-bit disk support.
# Added UDF (DVD-ROM) filesystem support.
# Added GPT disk label support to the kernel and to the Disk Manager program.
# Included a quantity of new icons based on contributions provided by Leency <leency@mail.ru>, including the folder icon, and all of the file browser icons for different file types.
# Implemented keyboard navigation of the GUI menus using 'Alt' to activate them, and the cursor and 'Enter' keys to navigate and select.
# Alt-Tab now raises the root window's 'window' menu for keyboard navigation between open windows, in a way somewhat analogous to the way Windows and other GUIs do it.
# Added loader file class support for the ability to recognise GIF and PNG images, Zip, Gzip, and Ar archives, and PDF and HTML documents. Also added file browser icons for PDF, HTML and archive files.
# New splash image for the 0.7x series.