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&os; &release.current; Release Notes The &os; Project $FreeBSD$ 2020 The &os; Documentation Project &tm-attrib.freebsd; &tm-attrib.ibm; &tm-attrib.ieee; &tm-attrib.intel; &tm-attrib.sparc; &tm-attrib.general; The release notes for &os; &release.current; contain a summary of the changes made to the &os; base system on the &release.branch; development line. This document lists applicable security advisories that were issued since the last release, as well as significant changes to the &os; kernel and userland. Some brief remarks on upgrading are also presented. Introduction This document contains the release notes for &os; &release.current;. It describes recently added, changed, or deleted features of &os;. It also provides some notes on upgrading from previous versions of &os;. The &release.type; distribution to which these release notes apply represents the latest point along the &release.branch; development branch since &release.branch; was created. Information regarding pre-built, binary &release.type; distributions along this branch can be found at &release.url;. The &release.type; distribution to which these release notes apply represents a point along the &release.branch; development branch between &release.prev; and the future &release.next;. Information regarding pre-built, binary &release.type; distributions along this branch can be found at &release.url;. This distribution of &os; &release.current; is a &release.type; distribution. It can be found at &release.url; or any of its mirrors. More information on obtaining this (or other) &release.type; distributions of &os; can be found in the Obtaining &os; appendix to the &os; Handbook. All users are encouraged to consult the release errata before installing &os;. The errata document is updated with late-breaking information discovered late in the release cycle or after the release. Typically, it contains information on known bugs, security advisories, and corrections to documentation. An up-to-date copy of the errata for &os; &release.current; can be found on the &os; Web site. This document describes the most user-visible new or changed features in &os; since &release.prev;. In general, changes described here are unique to the &release.branch; branch unless specifically marked as &merged; features. Typical release note items document recent security advisories issued after &release.prev;, new drivers or hardware support, new commands or options, major bug fixes, or contributed software upgrades. They may also list changes to major ports/packages or release engineering practices. Clearly the release notes cannot list every single change made to &os; between releases; this document focuses primarily on security advisories, user-visible changes, and major architectural improvements. Upgrading from Previous Releases of &os; Binary upgrades between RELEASE versions (and snapshots of the various security branches) are supported using the &man.freebsd-update.8; utility. The binary upgrade procedure will update unmodified userland utilities, as well as unmodified GENERIC kernels distributed as a part of an official &os; release. The &man.freebsd-update.8; utility requires that the host being upgraded have Internet connectivity. Source-based upgrades (those based on recompiling the &os; base system from source code) from previous versions are supported, according to the instructions in /usr/src/UPDATING. Upgrading &os; should only be attempted after backing up all data and configuration files. Security and Errata This section lists the various Security Advisories and Errata Notices since &release.prev;. Security Advisories &security; Errata Notices &errata; Userland This section covers changes and additions to userland applications, contributed software, and system utilities. Userland Configuration Changes The netatalk protocol has been removed from &man.services.5;. Userland Application Changes The &man.camcontrol.8; utility has been updated to include support for Accessible Max Address Configuration (AMA). The &man.camcontrol.8; utility has been updated to support block descriptors with the modepage subcommand. The &man.yp.8; subsystem has been updated to increase the value of YPMAXRECORD from 1M to 16M for compatibility with &linux;. The &man.usbconfig.8; utility has been updated to include the detach_kernel_driver command. The &man.jot.1; utility has been updated to allow an endless stream of random data within the specified bounds. The &man.freebsd-update.8; utility has been updated to include two new commands, updatesready and showconfig. The &man.cron.8; utility has been updated to support two new flags in &man.crontab.5;, -n and -q, which suppress mail on successful runs and suppress logging of command execution, respectively. The &man.zfs.8; utility has been updated to support renaming bookmarks. The &man.usbconfig.8; utility has been updated to include the dump_stats command. The &man.fsck.ffs.8; and &man.newfs.8; utilities has been updated to fix recovery information with sector sizes up to 64k. The &man.certctl.8; utility has been added. The &man.env.1; utility has been updated to include the -L and -U options, which are used to set the environment of the specified user from login.conf and ~/.login_conf, respectively. The &man.syslogd.8; utility has been updated to add property-based filters. Contributed Software The &man.bzip2.1; utility has been updated to version 1.0.8. The WPA utilities have been updated to version 2.9. The &man.tcsh.1; utility has been updated to version 6.21.0. The &man.less.1; utility has been updated to version 551. The &man.libbsdxml.3; library has been updated to version 2.2.9. OpenSSL has been update to version 1.0.2u. The &man.pcap.3; library has been updated to version 1.9.1. The &man.tcpdump.1; utility has been updated to version 4.9.3. The &man.unbound.8; utility has been updated to version 1.9.6. The &man.mtree.8; utility has been updated to include several bug fixes. The &man.archive.3; library has been updated to version 3.4.2. The &man.ntpd.8; utilities have been updated to version 4.2.8p14. The timezone database files have been updated to version 2020a. The &man.file.1; utility has been updated to version 5.38. The &man.xz.1; utility has been updated to version 5.2.5. The clang, llvm, lld, lldb, libunwind, openmp, compiler-rt utilities and libc++ have been updated to version 10.0.0. A fix to correctly link DTrace-enabled ports with lld has been added. - - - Installation and Configuration Tools - -   - - - - <filename class="directory">/etc/rc.d</filename> - Scripts - -   - - - - <filename class="directory">/etc/periodic</filename> - Scripts - -   - - - - Runtime Libraries and API - -   - - - - ABI Compatibility - -   - - - - Userland Debugging - -   - - - Kernel - - This section covers changes to kernel configurations, system - tuning, and system control parameters that are not otherwise - categorized. - - - General Kernel Changes - -   - - - - Kernel Bug Fixes - -   - - - - Kernel Configuration - -   - - - - Kernel Modules - -   - - - - System Tuning and Controls - -   - - - Devices and Drivers This section covers changes and additions to devices and device drivers since &release.prev;. Device Drivers The Kerberos GSS API has been updated to emit deprecation warnings for algorithms marked as "SHOULD NOT" be used in RFCs 6649 and 8429. The &man.crypto.4; driver has been updated to emit deprecation warnings when the ARC4, Blowfish, CAST128, DES, 3DES, MD5-HMAC, and Skipjack algorithms are used. The &man.ubsec.4; driver has been marked as deprecated, and will be removed in &os; 13.0. Storage Drivers The &man.aacraid.4; driver has been updated to version 3.2.10. Support for JMicron® JMB582 and JMB585 AHCI controllers has been added. Network Drivers Support for the D-Link® DWM-222 LTE dongle has been added. The &man.ng.nat.4; driver has been updated to allow attaching to an ethernet interface. The &man.ena.4; driver has been updated to version 2.2.0. Hardware Support This section covers general hardware support for physical machines, hypervisors, and virtualization environments, as well as hardware changes and updates that do not otherwise fit in other sections of this document. Hardware Support Support for &intel; Cannon Lake PCH has been added to &man.snd.hda.4;. - - - Virtualization Support - -   - - - - ARM Support - -   - Storage This section covers changes and additions to file systems and other storage subsystems, both local and networked. - - General Storage - -   - - - - Networked Storage - -   - - ZFS Latency of synchronous 128KB writes has been improved. Support for renaming ZFS bookmarks has been added. The ZFS ZIL (ZFS intent log) maximum block size is now tunable. - - - <literal>geom(4)</literal> - -   - - - Boot Loader Changes - - This section covers the boot loader, boot menu, and other - boot-related changes. - - - Boot Loader Changes - -   - - - - Boot Menu Changes - -   - - - Networking This section describes changes that affect networking in &os;. - - General Network Changes - -   - - Network Protocols The &man.libalias.3; library and &man.ipfw.4; packet filter have been updated to add support for RFC 6598/Carrier Grade NAT subnets. Ports Collection and Package Infrastructure This section covers changes to the &os; Ports Collection, package infrastructure, and package maintenance and installation tools. - - Infrastructure Changes - -   - - Packaging Changes The &man.pkg.8; utility has been updated to version 1.13.2. The GNOME desktop environment has been updated to version 3.28. The KDE desktop environment has been updated to version 5.8.4.1.19.12.3. - - - - - Documentation - - This section covers changes to the &os; Documentation - Project sources and toolchain. - - - Documentation Source Changes - -   - - - - Documentation Toolchain Changes - -   - - - - - Release Engineering and Integration - - This section convers changes that are specific to the - &os; Release Engineering processes. - - - Integration Changes - -