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LWN.net is a reader-supported news site dedicated to producing the best coverage from within the Linux and free software development communities. See the LWN FAQ for more information, and please consider subscribing to gain full access and support our activities.[$] What's new in Lua 5.4 Lua version 5.4 was released at theend of June; it is the fifteenth major version of the lightweight scriptinglanguage since its creation in 1993. New in 5.4 isa generationalmode for the garbage collector, which performs better for programs withlots of short-lived allocations. The language now supports "attributes" onlocal variables, allowing developers to mark variables as constant(const) or resources as closeable (close). There werealso significant performance improvements over 5.3 along with a host ofminor changes. Full Story (comments: 1) LWN recently covered the effort within theLibreOffice project to find ways to support the companies doing the bulk ofthe development work. The project has now posted arevised marketing plan [PDF] with a number of changes, including theremoval of the "personal edition" name. Regarding LibreOffice Online:"Following our normal development process, the Ecosystem will releasetheir own versions in their own timing, allowing some features to reachtheir Enterprise versions before they are subsequently shipped in TDF builds(this allows the Ecosystem to positively differentiate by contributing newfeatures functionality)". Comments (none posted) The io_uring subsystem is not much over oneyear old, having been merged for the 5.1 kernel in May 2019. It wasinitially added as a better way to perform asynchronous I/O from user space; over time it has gained numerous features and supportfor functionality beyond just moving bits around. What it has not yet gainedis any sort of security mechanism beyond what the kernel already providesfor the underlying system calls. That may be about to change, though, asthe result of thispatch set from Stefano Garzarella adding a set of user-configurablerestrictions to io_uring. Full Story (comments: 7) The OMG! Ubuntu! site reportsthat the Debian "popularity contest" application is being removed fromUbuntu. "But with Snaps, Flatpaks, PPAs and other avenues givingdevelopers more direct ways to market to users (not to mention moreaccurate numbers on how many people use their software) the relative meritsof 'what's popular in the repos' is …Well, a touch moot." Comments (none posted) In an earlier article, guest author Martin Michlmayr reviewed the todo.txt and Taskwarrior task managers. This article continues the process of examining taskmanagers by looking at tools for Org mode, which is a system originally created for Emacs, aswell as at tools that make use of the iCalendar standard. It is time to findout whether he can find a system that meets his needs. Full Story (comments: 5) The openSUSE board troubles that LWN reportedon in May have continued to simmer, and the promised election for anempty seat has not yet been held. During this time, instead, the project hasvoted on a petition to declare a lack of confidence in the board as awhole, a result that would have forced the election of an entirely newboard. In the end, the number of votes fell far short of the numberrequired, and the existing board will move forward with the election plan. Full Story (comments: none) For years, Windows PHP users have enjoyed builds provided directly by Microsoft. The company has contributed to the PHP project in many ways, with the binaries made available on windows.php.net being the most visible. Recently Microsoft Project Manager Dale Hirt announced that, beginning with PHP8.0, Microsoft support for PHP on Windows would end. Full Story (comments: 18) Security updates have been issued by CentOS (dbus), Debian (python3.5), Fedora (podofo and roundcubemail), Oracle (dbus, dovecot, jbig2dec, kernel, nodejs:10, nodejs:12, sane-backends, and thunderbird), Red Hat (.NET Core and kernel), SUSE (ansible, ansible1, ardana-ansible, ardana-cluster, ardana-freezer, ardana-input-model, ardana-logging, ardana-mq, ardana-neutron, ardana-octavia, ardana-osconfig, caasp-openstack-heat-templates, crowbar-core, crowbar-openstack, documentation-suse-openstack-cloud, grafana, kibana, openstack-dashboard, openstack-dashboard-theme-HPE, openstack-heat-templates, openstack-keystone, openstack-monasca-agent, openstack-monasca-installer, openstack-neutron, openstack-octavia-amphora-image, python-Django, python-Flask, python-GitPython, python-Pillow, python-amqp, python-apicapi, python-keystoneauth1, python-oslo.messaging, python-psutil, python-pyroute2, python-pysaml2, python-tooz, python-waitress, storm, bind, jasper, java-1_8_0-openjdk, LibVNCServer, libxml2, python-ipaddress, rubygem-bundler, rubygem-puma, samba, slirp4netns, xen, and xrdp), and Ubuntu (firefox and webkit2gtk). Full Story (comments: none) Connecting one source of data to another isn't always easy because of differentstandards, data formats, and APIs to contend with, among the manychallenges. One of the groups that is trying to help with the challenge ofdata interoperability is the Linux Foundation's Open Data Platforminitiative (ODPi). At the 2020Open Source Summit North America virtual event on July2, ODPiTechnical Steering Committee chairperson MandyChessell outlined the goals of ODPi and the projects that are part of it.She also described how ODPiis taking an open-source development approach to make data moreeasily accessible. Full Story (comments: none) Security updates have been issued by Fedora (mingw-podofo and python-rsa), openSUSE (LibVNCServer, mozilla-nss, nasm, openldap2, and permissions), Red Hat (dovecot, sane-backends, and thunderbird), Scientific Linux (dbus), and SUSE (firefox and thunderbird). Full Story (comments: none) The LibreOffice project wouldseem to be on a roll. It produces what is widely seen as the leadingfree office-productivity suite, and has managed to move out of the shadowof the moribund (but brand-recognized) ApacheOpenOffice project. The LibreOffice7 release is coming within a month, and the tenthanniversary of the founding of the Document Foundation arrives inSeptember. Meanwhile, LibreOfficeOnline is taking off and, seemingly, seeing some market success.So it is a bit surprising to see the project's core developersin a sort of crisis mode while users worry about a tag that showed up inthe project's repository. Full Story (comments: 61) Security updates have been issued by Debian (chromium, mailman, openjpeg2, ruby-rack, squid3, tomcat8, and xen), Fedora (botan2, kernel, LibRaw, mingw-OpenEXR, mingw-podofo, podofo, seamonkey, squid, and webkit2gtk3), Mageia (ffmpeg, mbedtls, mediawiki, and xpdf), Oracle (kernel), Red Hat (bind, dbus, jbig2dec, and rh-nodejs12-nodejs), and SUSE (graphviz and xen). Full Story (comments: none) Posted Jul 9, 2020 0:26 UTC (Thu) The LWN.net Weekly Edition for July 9, 2020 is available. Inside this week's LWN.net Weekly Edition Front: Mint and Snaps; Btrfs at Facebook; Sleepable BPF; Dispatch; Home Assistant; Hugo. Briefs: Zero-code sandboxes; Leap 15.2; Perl 7 comments; LPC town hall #2; Open Usage Commons; Quotes; ... Announcements: Newsletters; conferences; security updates; kernel patches; ...Read more The 5.8-rc5 kernel prepatch is out fortesting; it's a relatively large set of changes. "Maybe I'm indenial, but I still think we might hit the usual release schedule. A fewmore weeks to go before I need to make that decision, so it won't bekeeping me up at night." Comments (none posted) The Linux Mint project has made good on previous threats to actively prevent Ubuntu Snap packages from being installed through the APT package-management system without the user's consent. This move is the result of "major worries" from Linux Mint on Snap's impact with regard to user choice and software freedom. Ubuntu's parent company, Canonical, seems open to finding a solution to satisfy the popular distribution's concerns but it too has interests to consider. Full Story (comments: 75) Security updates have been issued by Fedora (curl, LibRaw, python-pillow, and python36), Mageia (coturn, samba, and vino), openSUSE (opera), and Ubuntu (openssl). Full Story (comments: none) Static web-site generators take page content written in a markuplanguage and render it into fully baked HTML, making it easy for developersto upload the result and serve a web site simply andsecurely. This article looks at Hugo, astatic-site generator written in Go and optimized for speed. It is aflexible tool that can be configured for a variety of use cases: simpleblogs, project documentation, larger news sites, and even governmentservices. Full Story (comments: 13) When support for classic BPF was added to the kernel many yearsago, there was no question of whether BPF programs could block in theirexecution. Their functionality was limited to examining a packet'scontents and deciding whether the packet should be forwarded or not; therewas nothing such a program could do to block. Since then, BPF has changeda lot, but the assumption that BPF programs cannot sleep has been builtdeeply into the BPF machinery. More recently, classic BPF has been pushedaside by the extended BPF dialect; thewider applicability of extended BPF is nowforcing a rethink of some basic assumptions. Full Story (comments: 20) Security updates have been issued by CentOS (firefox), Debian (ffmpeg, fwupd, ruby2.5, and shiro), Fedora (freerdp, gssdp, gupnp, mingw-pcre2, remmina, and xrdp), openSUSE (chocolate-doom), Oracle (firefox and kernel), and Ubuntu (linux, linux-lts-xenial, linux-aws, linux-kvm, linux-raspi2, linux-snapdragon and thunderbird). Full Story (comments: none)

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