====== MINIX Release 3.2.1 ======

===== Documentation =====

  * [[.:UsersGuide:]]

  * [[.:DevelopersGuide:]]

===== Release Notes =====
Release date: **February 21, 2013**

==== Major Features ====
  * Development:
    * Support for dynamically linked executables, also build shared versions of base system libraries. See [[.:UsersGuide:UsingSharedLibraries]].
    * Remove the use of Intel segments altogether, giving a performance boost while context switching. Rely exclusively on page tables.
    * Added support for SYSENTER/SYSCALL based system kernel calls, a significant performance improvement
    * Full new clean updated NetBSD build system import. build.sh is supported, allowing crossbuilding MINIX 3. See [[.:developersguide:crosscompiling|Crosscompile MINIX]].
    * Imported or upgraded many userland utilities and libraries from NetBSD: libc, lorder, join, mtree, tsort, cksum, kill, xinstall, du, libutil, tic, postinstall, flex, zlib, bsdtar, ls, sort, cat, echo, pax, file, mktemp, libc,csu, curses, byacc, tput, test, ln, nvi,ctags, infocomp, nbperf, make, m4, bzip2, libcrypt, printf, passwd, make, ed, nawk, expr, pwd. 
    * DDEKIT support (support for USB keyboards, mice and mass storage). See [[:DdeKitUsb]].
    * Generalization of the TTY driver
    * Small and large cleanup represented by retiring MINIXisms such as nonsymbolic rootdev, dev2name, checkhier, badblocks, readall, BIOS_SEG and umap_bios, bios_wini, C macros as _ANSI, _CONST, _VOLATILE, _SIZET, _ARGS, _VOID, PUBLIC, PRIVATE and FORWARD, _PROTOTYPE
    * VM: Generalized munmap (boot time ramdisk is now freed, saving memory)
    * VFS interaction with drivers is fully asynchronous, making VFS immune to uncooperative drivers
    * Exec performance improvement and generalization. Reduce copying, and kernel, RS, VFS and VM all use the same executable parsing code. 
    * Some more abstraction in VM to support future improvements
    * Implemented dynamic mtab support and the mount -a command
    * Generalized the file system cache
  * Changes
    * 'make world' was replaced with 'make build'
    * Dropped support for a.out binaries
  * Drivers, FS
    * E1000 add support for 82545EM
    * EXT2 support improvements.
    * Virtio: virtio-blk, virtio-net drivers. See [[.:UsersGuide:RunningOnQemu]].
    * Support for AHCI
    * Add VBFS: VirtualBox Shared Folder File System
    * rtl8169: add support for RTL8101E family
  * Keymaps
    * Portuguese keymap
    * Brazilian keymap 
  * Userland
    * Rewritten sprofalyze in C for better performance

==== Known Issues ====

  * VirtualBox: Minix cannot be installed w/o hardware acceleration support (VT-x, AMD-V)
    * Workaround: See [[.:UsersGuide:RunningOnVirtualBox]]