OpenBSD 5.8 發布預覽，計劃10月18日正式推送
OpenBSD 5.8 發布預覽，計劃 2015 年 10 月 18 日正式發布。
主要改進如下：
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改進硬件支持：
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New rtwn(4) driver for Realtek RTL8188CE wifi cards.
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New hpb(4) driver for HyperTransport bridges as found in the IBM CPC945
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The ugold(4) driver now supports TEMPerHUMV1.x temperature and humidity sensors.
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Improved sensor support for the upd(4) driver for USB Power Devices (UPS).
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Support for jumbo frames on re(4) devices using RTL8168C/D/E/F/G and RTL8411, including PC Engines APU.
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re(4) now works with newer devices e.g. RTL8111GU.
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Partial support has been added for full-speed isochronous devices in ehci(4), allowing USB 1.1 audio devices to be used on EHCI-only systems in some cases.
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Improved macppc stability and G5 performances with MP kernels
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acpicpu(4) uses ACPI C-state information to reduce power consumption of idle CPUs.
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Kernel supports x86 AVX instructions on CPUs that have them.
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Avoid assigning low address to PCI BARs, fixing various issues on machines whose BIOSes neglect to claim low memory.
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wscons(4) works with even more odd trackpads.
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Added pvbus(4) paravirtual device tree root on virtual machines that are running on hypervisors.
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New octdwctwo(4) driver for USB support on OpenBSD/octeon.
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New amdcf(4) driver for embedded flash on OpenBSD/octeon.
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移除的硬件支持：
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The lmc(4) driver for Lan Media Corporation SSI/T1/DS1/HSSI/DS3 devices has been removed.
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The san(4) driver for Sangoma Technologies AFT T1/E1 devices has been removed.
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常規網絡棧改進
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MTU of vlan(4) devices can now be set independently from the parent interface's MTU.
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The same network range can now be assigned to multiple interfaces, using interface priorities to choose between them.
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New MPLS pseudowire driver mpw(4).
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安裝器改進
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hostname-mode.conf response file names.
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response files to be placed in a subdir of the webserver's document root.
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passing a template file to disklabel(8) to automatically partition the disk.
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The default answer is now 'no'.
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'prohibit-password' has been added to the list of possible answers.
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The logic of the 'Allow root ssh login?' question has been changed.
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autoinstall(8) has been extended to allow
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ntpd(8) is now enabled by default at install time.
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DUID support has improved enough that new installs now use them unconditionally.
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Installing sets from CD-ROM has been fixed if more than one CD-ROM drive is present.
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The 'Which CD-ROM contains the install media?' question has been removed. Available cdrom devices are now shown directly in the 'Location of sets?' prompt.
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安全改進：
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sudo in base has been replaced with doas(1), sudo is available as a package.
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file(1) has been replaced with a new modern implementation, including sandbox and privilege separation.
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pax(1) (and tar(1) and cpio(1)) now prevent archive extraction from escaping the current directory via symlinks; tar(1) without -P option now strips up through any ".." path components.
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Improved kernel checks of ELF headers.
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...
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OpenBSD是一個從NetBSD衍生出來的類Unix操作系統。專案領導人Theo de Raadt在1995年]發起了OpenBSD專案，希望創造一個注重安全的操作系統，此外OpenBSD也以高品質的文件、堅持開放程式碼以及嚴格的軟 件授權著名。OpenBSD的吉祥物是河豚。
OpenBSD包含了一些在其他操作系統缺少或是選擇性的安全功能，此外OpenBSD極度重視程式碼的品質，任何對核心的修改都需要經過嚴格的程 式碼審閱。OpenBSD可以在17種不同的硬件環境下運作，包含DEC Alpha、Intel i386、Hewlett-Packard PA-RISC、AMD64、Motorola 68000、PowerPC、Sun SPARC等。
來自：http://www.oschina.net/news/65399/openbsd-5-8-available-for-pre-order
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