http://kerneltrap.org/OpenBSD/OpenBSD_4.2_Released Code: As in our previous releases, 4.2 provides significant improvements, including new features, in nearly all areas of the system: - New/extended platforms: o OpenBSD/sparc64. The PCIe UltraSPARC IIIi machines like the V215 and V245 are now supported. o OpenBSD/hppa. Four-digit B/C/J-class workstations like the B2000, C3750 or J6750 are now supported (in 32-bit mode). o OpenBSD/alpha. Add support in the alpha platform for a couple of new Alpha models, AlphaServer 1200 and 4100. - Platforms skipped this release: o OpenBSD/sgi. This architecture will not be released this time. - Install/Upgrade process changes: o New install method!! For the most popular architectures, the FTP sites have a ~200MB install ISO file, which contains the base set, permitting non-network installs. o Allow the specification of an NTP server during installation. o Allow no fsck'ing of clean non-root partitions during upgrade. o Check for INSTALL.<arch> to confirm sets are for the correct architecture. o Create and format the MSDOS partition for macppc installs in a more flexible and reliable way. - Improved hardware support, including: o Native Serial-ATA support: o ahci(4) driver for SATA controllers conforming to the Advanced Host Controller Interface specification. o jmb(4) driver for the JMicron JMB36x SATA II and PATA Host Controller. o sili(4) driver for SATA controllers using the Silicon Image 3124/3132/3531 SATALink chipsets. o The pciide(4) driver has had support added for newer chipsets, including: o Intel ICH8M PATA o JMicron JMB36x PATA o VIA CX700/VX700 PATA o The lm(4) driver now supports Winbond W83627DHG and W83627EHF-A Super I/O Hardware Monitors. o The siop(4) driver now has support for NCR 53C720/770 controllers in big endian mode. In particular this means that the onboard Fast-Wide SCSI on many hppa machines is supported now. o New tht(4) driver for Tehuti Networks 10Gb Ethernet controllers. o The malo(4) driver now supports Marvell 88W8385 802.11g based Compact Flash devices. o New uts(4) driver for USB touch screens, supported by the xtsscale(1) calibration utility. o The i810(4) X.Org driver and the PCI AGP driver now support Intel i965GM chips. o New led(4) driver for the front panel LEDs on the V215/245. o New bbc(4) driver providing support for the BootBus Controllers in UltraSparc III systems. o New pmc(4) driver for the watchdog(4) timer on the National Semiconductor PC87317 SuperIO chip. o New pyro(4) driver for the SPARC64 Host/PCIe bridge. o New astro(4) driver for the Astro Memory and I/O controller on hppa. o New elroy(4) driver for the Elroy PCI hostbridge on hppa. o New lcd(4) driver for the front panel LCD display on hppa. o New ssio(4) driver for the National Semiconductor PC87560 Legacy IO on hppa. o New pxammc(4) driver for the MMC/SD/SDIO controller on zaurus. o New xlights(4) driver for the front panel lights on the Xserve G4. o New sysbutton(4) driver for the system identification button on the Xserve G4. o New piixpcib(4) driver for System Management Mode initiated speedstep frequency scaling on certain pairings of the Intel PIIX4 ISA bridges and Intel Pentium 3 processors. o CPU frequency and voltage can now be scaled on all CPUs when running GENERIC.MP on a multiprocessor i386 or AMD64 machine with enhanced speedstep or powernow. o Intel enhanced speedstep is now supported on OpenBSD/amd64. o New support for the on die CPU temperature sensor found on the Intel Core family of processors. o The nvram(4) driver is now available on OpenBSD/amd64. - New tools: o cwm(1) has replaced wm2 as a simple-looking low-resource window manager. o zless(1), view compressed files with less(1). o mount_vnd(8), a utility to configure vnode disks from fstab(5). - New functionality: o FFS2, the updated version of the fast file system. o ftp(1) now can send cookies loaded from a netscape-like cookiejar, supports proxies requiring a password, and has a keep-alive option to avoid over-aggressive control connection dropping. o pkg_add(1) has been vastly improved. It is more robust, outputs more consistent error messages, and can deal with a lot more update scenarios gracefully. It also has much better look-up capabilities for multiple entries in PKG_PATH, stopping at the first directory with suitable candidates. o ftp-proxy(8) is now able to automatically tag packets passing through the pf(4) rule with a supplied name. o Kernel work queues, workq_add_task(9), workq_create(9), workq_destroy(9) provides a mechanism to defer tasks to a process context when it is impossible to run such a task in the current context. o ifconfig(8) now understands IP address/mask in CIDR notation. o Add IP (v4 and v6) load balancing to carp(4), similar to the ARP balancing. o sensorsd(8) now supports a zero-configuration monitoring and has a more intuitive logging for all sensors that automatically provide sensor state. It also features advancements in user-specified monitoring, including monitoring of sensors that are periodically flagged as invalid. o sensorsd.conf(5) now supports sensor matching by sensor type, allowing easier configuration. o The i386 bootloader can now load amd64 kernels. o The amd64 bootloader can now load i386 kernels. - Assorted improvements and code cleanup: o Large (>1TB) disk and partition support in the disklabel and buffer cache code and in the userland utilities that manipulate disk blocks. Note that some parts of the system are not 64-bit disk block clean yet, so partitions larger than 2TB cannot be used at the moment. o Large (>2^32-1 sectors) SCSI disk sizes now probed. o Thread support for the Objective-C library (libobjc). o carp route handling has been fixed, solving some problems the routing daemons were exhibiting. o Various improvements in pf increase performance drastically, stateful passing more than twice as fast than before. o A change in how the kernel random pool is stirred increases performance with network interface cards that support interrupt mitigation a lot. o i386 TLB handling improved to avoid possible corruption on Core2Duo processors. o Rework TLB shootdown code for i386 and amd64, gives fairly large speed improvements. o i386 and amd64 use the BIOS disk geometry when creating default disklabels. o Default disk geometry changed from 64 heads/32 sectors to 255 heads/63 sectors. o More USB devices with various quirks coerced to work. o Archive/Wangtek cartridge tape drives (wt*) no longer supported. o rcs has improved GNU compatibility. o make(1) has improved stability of -j option.