2. Summary of new features in 4.0.1.

2.1. X server

• New DRI drivers for Intel i810, Matrox G400 and G200 (AGP only) and the ATI Rage 128, and updates to the 3Dfx DRI driver, including Voodoo5 support.
• The X server now runs on Linux/Sparc including drivers for many video cards used on SUN hardware.
• DRI support for the Linux/Sparc implementation that allows 3D direct rendering with Creator3D cards.
• Fixed recently publicized security issues.
• Update Mesa to the latest version.
• Xinerama updates and fixes.
• Xv updates and fixes.
• Mouse support in DGA 1.0 compatibility mode should now work correctly for most games that make use of it.
• Some bugs with 8+24 overlay support have been fixed.
• Some XKEYBOARD extension problems have been fixed, including improvements to the MouseKeys support.
• Add generic DGA support to the sis, neomagic and i810 drivers.
• xf86cfg, a new graphical configuration tool for XFree86 4.0, and can be used to either write the initial configuration or make customizations to the current configuration. xf86cfg is a work in progress, and allows configuration of:
  • Specific setup of monitors, cards, keyboards and mice, as well as adding or removing them.
  • Server layout setup, allowing complex configuration of physical monitor positions, default color depth and/or rotated monitors.
  • Mode line editor that can be used to configure multiple monitors, and allows adding a modeline specific to a monitor directly to the configuration file.
  • AccessX configuration interface, that provides an interface to easy setup of most AccessX options, including:
    • Timeout to reset controls.
    • StickyKeys, for people with disabilities that cannot press two keys at the same time.
    • MouseKeys, mouse control only with the keyboard.
    • RepeatKeys, repeat rate and repeat delay.
    • SlowKeys, to avoid pressing keys accidentally, they're only accepted if pressed for some specific amount of time.
    • BounceKeys, helps avoiding multiple key presses by only accepting a key if it is pressed only once and not pressed again in a specific amount of time.
  New configuration options are being worked on, as well as correcting some of the bugs in the current options. A protocol for plugging in external modules is also planned.

2.2. X libraries and clients.

• Thread safety issues have been resolved in a few places in the libraries. Upgrading to the latest libraries is essential for multi-threaded X applications.
• Some fatal bugs in the big font support have been fixed. Upgrading to the latest libraries will fix this too.
• Fixed recently publicized security issues in some of the X libraries.
• Updates and bug fixes for some clients, including xedit, xman, xcalc, fstobdf, xdm.
• Fix some xfs problems.
• XTerm updates. These include:
  • Improve logfile security.
  • Workaround for fixed fonts which are generated from Unicode fonts: they omit glyphs for some xterm's less-used line-drawing characters, which caused xterm to set a flag telling it to use only its internal line-drawing characters.
  • Limit numeric parameters of control sequences to 65535 to simplify checks for numeric overflow.
  • Change index into UDK list to unsigned to guard against numeric overflow making the index negative.
  • Add limit checks to ClearInLine(), ScrnInsertChar(), ScrnDeleteChar() to correct potential out-of-bounds indexing.
  • Add a resource (limitResize) limiting resizing via the CSI 4 t and CSI 8 t sequences.
  • Ignore out-of-bounds resize requests, i.e., where sign-extension or truncation of the parameters would occur.
  • Change Sun function-keys resource name to sunFunctionKeys to work around redefinition of the token sun by xrdb on Solaris. Similarly, renamed resource sun keyboard to sunKeyboard. Change similar resource names for HP and SCO to avoid potential conflict with xrdb symbols on other systems, as well as for consistency.
  • Change line speed from 9600bd to 38400bd to accommodate users who mistakenly use $TERM set to vt100, to reduce the effect of padding associated with this terminal type.
  • Fix a problem that caused the right scrollbar to be positioned incorrectly when re-enabling it.
  • Fix a problem with color support that showed up on some platforms.
  • Modify logic for deleteIsDEL resource so it has internally 3 states: unspecified, true and false. If unspecified, the keyboard type determines whether the Delete key transmits <esc>[3~ or \177, and the popup menu entry reflects the internal state. Otherwise, the popup menu entry overrides the keyboard type.
  • Portability fixes for os390, AIX 4.2, Digital Unix 4.0 and IRIX 6.5.

2.3. Fonts and Internationalisation

• Many of the "misc" bdf fonts have been updated and extended, and a wider range of ISO-8859 subsets have been added. Oblique/italic versions of some of them have also been added.
• The converters in Xlib have been improved and reworked. UTF-8 support has been added.
• Support for ISO-8859-13 has been added to Xlib and to the UTF-8 converters.
• XKB keyboard definitions have been added and updated for some countries.
• Locale support for Celtic languages has been updated, and a Compose file for ISO-8859-14 added.

2.4. Miscellaneous

• Preliminary support for Linux/mips (no X servers yet).
• Update support for BSD/OS.
• Update Linux/IA64 support.
• Support for LynxOS 3.1.0.