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  * Major changes
    - Welcome Screen: after a large refactoring we now can persist
      settings (See: #17136)! Currently it is limited to the newly
      added option that controls whether the Unsafe Browser is allowed
      to start (#17085). In the next major release we'll support all
      options.
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  * Security fixes
    - Allow to disable the Unsafe Browser in the Welcome Screen
      (Closes: #17085). The Unsafe Browser can be used by exploits to
      deanonymize the Tails user (for details, see: #15635).
    - Upgrade Tor Browser to 9.5.1-build2 (Closes: 17782).
    - Thunderbird:
      * Upgrade to Thunderbird 68.9.0 (DSA-4702).
      * Disable unsafe MX automatic configuration method (Closes:
        #17277).
      * Disable unsafe MS Exchange automatic configuration method
        (Closes: #17654).
    - Upgrade Linux kernel to linux-image-5.6.0-2 at 5.6.14-2 (Closes:
      #17611, #17620; DSA-4698, DSA-4699).
    - Upgrade gnutls28-based packages to 3.6.7-4+deb10u4 (DSA-4697).
    - Upgrade intel-microcode to 3.20200609.2~deb10u1 (DSA-4701).
    
  * Bugfixes
    - Trigger emergency shutdown on resume when the boot device was
      removed while suspended (Closes: #16787).
    - Thunderbird: make searching in messages (Find bar and Find in
      This Message) work again (Closes: #17328).
    - Ensure Mac Spoofing Panic messages will be correctly displayed
      (Closes: #17779). udev may close child processes when a process
      associated with a rule (/etc/udev/rules) terminates so we wait
      for those processes before exiting.
    - Wrap `seahorse-tool --import` so it is handled by `gpg --import`
      (Closes: #17183). This makes importing binary keys via GNOME
      Files integration possible again.

  * Minor improvements and updates
    - Upgrade to tor 0.4.3.5-1 (Closes: #17741).
    - Upgrade LibreOffice to 1:6.1.5-3+deb10u6.
    - Upgrade VirtualBox guest modules to 6.1.10-dfsg-1.
    - Append Unsafe Browser setting to WhisperBack debug info.

  * Build system
    - Upgrade snapshot of the Debian archive to 2020061003, including
      the 10.4 point release of Debian Buster (Closes: #17620).
    - Tor Browser AppArmor profile: update patch to apply on top of
      0.3.2-11 (Closes: #17612)
    - Thunderbird AppArmor profile: update patch to apply on top of
      68.9.0 (Closes: #17769).

  * Test suite
    - Establish a coding standards baseline on our Ruby code base
      using Rubocop (Closes: #17646). This *MASSIVE* change includes
      mainly stylistic fixes and linting but also a few bug fixes,
      some dead code removal and code simplifications/refactorings,
      spelling fixes, improved gherkin and even removal the of
      a few duplicated tests and merging of very similar tests.
    - Improve robustness of navigating the GRUB menu in UEFI mode, and
      consequently drop the @fragile tag on the UEFI boot scenario
      (Closes: #13459).
    - Allow configuring the number of vCPUs given to TailsToaster.
      Based on work done by kytv (♥) on #6729. On powerful hardware
      with many CPUs, Tails boots much faster with >2 vCPUs given to
      TailsToaster.
    - Disable desktop size and clipboard interference between the host
      system and the system under test when using --view.
    - Ensure we run post_snapshot_restore_hook every time it's needed.
    - Fix running with XDG_SESSION_TYPE unset (Closes: #17596).
    - Always test the localized start up page of the Unsafe Browser.
    - Add --keep-chutney option to keep Chutney data, but no
      snapshots, between runs.
    - Revert "Test suite: disable tests about notifications in case of
      MAC spoofing failure (refs: #10774)"
    - Verify that the Unsafe Browser is disabled by default.
    - Test suite: fix --image-bumping-mode.

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  * Security fixes
    - Upgrade Tor Browser to 9.5-build2 (Closes: #17710).
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    - Upgrade APT to 1.8.2.1 (DSA-4685).
    - Upgrade BIND to 1:9.11.5.P4+dfsg-5.1+deb10u1 (DSA-4689).
    - Upgrade WebKitGTK to 2.28.2-2~deb10u1 (DSA-4681).
    - Upgrade Thunderbird to 1:68.8.0-1~deb10u1 (DSA-4683).
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  * Bugfixes
    - Improve Additional Software reliability (Closes: #17278): disable
      periodic APT operations entirely, adjust timeouts, force data
      synchronization, preserve file ownership.
    - Make memory erasure feature compatible with overlayfs (Closes: #15146).
    - Adjust various documentation for the new GitLab-based hosting.

  * Minor improvements and updates
    - Fix title of unlock-veracrypt-volume error dialog in case of incorrect
      password (Closes: #17668).
    - Clean up confusing torrc (Closes: #17706).

  * Build system
    - IUK creation: don't use extreme compression options for the outer
      SquashFS container refs.
    - IUK creation: add support for building several IUKs in parallel locally
      (Closes: #17657).
    - IUK verification: add support for fetching IUKs built in parallel on
      Jenkins (Closes: #17658).
    - Release process: generate UDFs on the alpha channel for previous
      non-final releases (Closes: #17614).
    - Remove aufs-based IUK generation code and doc (Closes: #17489).

  * Test suite
    - Adjust for augmented timeouts in Additional Software.
    - Adjust locale lookup to check several directories.
    - Speed up 'I fill a ... MiB file' step by 1000%.
    - Keep latest test suite screenshot (Closes: #17621).
    - Fix test suite breaking when the user connects to the VM via virt-viewer
      (Closes: #17623).
    - Adjust reference images and titles following the migration to GitLab
      (Closes: #17718, 17719).
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 -- Tails developers <tails@boum.org>  Mon, 01 Jun 2020 18:31:41 +0200
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  * Security fixes
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    - Upgrade Tor Browser to 9.0.10-build2 (Closes: #17660).
    - Upgrade Thunderbird to 1:68.7.0-1~deb10u1 (MFSA-2020-14, DSA-4656).
    - Upgrade Git to 1:2.11.0-3+deb9u3 (DSA-4657, DSA-4659).
    - Upgrade Node.js to 10.19.0~dfsg1-1 (DSA-4669).
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    - Upgrade OpenLDAP to 2.4.47+dfsg-3+deb10u2 (DSA-4666).
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    - Upgrade OpenSSL to 1.1.1d-0+deb10u3 (DSA-4661).
    - Upgrade ReportLab to 3.5.13-1+deb10u1 (DSA-4663).
    - Upgrade WebKitGTK to 2.26.4-1~deb10u3 (DSA-4658).
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  * Bugfixes
    - Switch Japanese input method from Anthy to Mozc (Closes: #16719).
    - Install the libu2f-udev package, for U2F device support.
    - Update our list of 'Favorites' applications (Closes: #16990).

  * Build system
    - lint_po: support locales with "@" in their name, such as ru@petr1708
      (Closes: #17554).
    - perl5lib: declare missing test dependencies (Closes: #17591).
    - iuk: declare missing test dependencies (Closes: #17592).
    - Upgrade to po4a 0.55 for Tails images and Vagrant box (Closes: #17005).

  * Test suite
    - Print disk usage information when the test suite fails with “No
      space left” errors.
    - Ensure no zombie processes are left around, by cleaning subprocesses
      correctly (Closes: #17551).
    - Prevent webrick from becoming a zombie process.
    - Avoid test suite getting stuck due to a zero timeout.
    - Fix obsoletion warnings (Closes: #17552).
    - Add root check and --allow-non-root option (Closes: #17613). Let's
      make it clear running the test suite requires root privileges in
      the general case.
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 -- Tails developers <tails@boum.org>  Mon, 04 May 2020 18:43:38 +0200
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  * Security fixes
    - Upgrade Tor Browser to 9.0.9-build1 (Closes: #17594).
    - Upgrade BlueZ to 5.50-1.2~deb10u1 (DSA-4647).
    - Upgrade GnuTLS to 3.6.7-4+deb10u3 (DSA-4652).
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 -- Tails developers <tails@boum.org>  Mon, 06 Apr 2020 21:51:05 +0200
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tails (4.5~rc1) unstable; urgency=medium
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  * Major changes
    - Migrate from aufs to overlayfs (Closes: #8415). This change touches
      many components which won't all be listed individually, but some
      highlights are listed below:
      ⋅ Adjust the build system to stop building the aufs kernel module.
      ⋅ Switch the kernel command line from union=aufs to union=overlayfs.
      ⋅ Adjust AppArmor profiles (Closes: #9045, #12112).
      . Adapt chroot-browsers (Closes: #12105).
      ⋅ Drop the aufs Git submodule.
      ⋅ Make memory erasure feature compatible with overlayfs
        (Closes: #15146).
      ⋅ Make Upgrader support and also generate overlayfs-based IUKs by
       default (Closes: #9373).
    - Use GRUB with Secure Boot support for x86_64 (Closes: #6560, #15806).
      This is also a large change, touching many components:
      ⋅ Install grub from bullseye.
      ⋅ Introduce a custom grub configuration file.
      ⋅ Use a custom background image.
      ⋅ Mimick Debian Installer's efi-image build script to handle all
        details in binary local hooks.
       Add SYSLINUX in the syslinux bootloader menu, to make it easier to
        troubleshoot GRUB vs. syslinux issues (Closes: #17538).
       Upgrader: Adjust to also handle files in EFI/debian when dealing
        with file removals.
       Adjust test suite.
    - Migrate test suite from Sikuli to a combination of OpenCV (image
      matching), xdotool (mouse interaction), plus libvirt's send-key
      (keyboard interaction) (Closes: #15460). This is another major
      changes, allowing the test suite to run on Buster-based systems,
      touching various areas of the test suite, among which:
      ⋅ Add workaround for the Greeter when restoring snapshot.
      ⋅ Fix dependencies for Buster.
      ⋅ Replace some Sikuli-based options with some OpenCV-based ones
        (e.g. --retry-find → --image-bumping-mode).
      ⋅ Handle non-English keyboards.
      ⋅ Fix --capture on Buster and above.
      ⋅ Deal with Buster having migrated from avconv to ffmpeg.
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  * Security fixes
    - Upgrade ICU to 63.1-6+deb10u1 (DSA-4646).

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  * Minor improvements and updates
    - Refactor tails-documentation (Closes: #16903).

  * Build system
    - Freeze APT snapshots for 4.5~rc1.
    - Rakefile: always disable website caching when building from a tag
      (Closes: #17513).
    - Rakefile: fix recommended permissions (libvirt needs +r to share the
      source tree with the Vagrant box).
    - Import persistence-setup.git from its own repository into tails.git
      (Closes: #17526, #6487).
    - IUK: ensure rsync runtime dependency is installed.

  * Test suite
    - Adjust for the aufs → overlayfs migration (Closes: #12106, #17440,
      #17451).
    - run_test_suite: don't print usage on error.
    - run_test_suite: --view/--vnc-server-only are only supported on x11.
    - Optimize checking if file is empty.
    - Speed up some test failures to avoid resource starvation.
    - Check for tcplay dependency.
    - Increase chances chutney starts after unclean shutdown.
    - Make chutney log what it is doing.
    - Make opening Thunderbird's Extensions tab more robust.

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 -- Tails developers <tails@boum.org>  Thu, 26 Mar 2020 22:51:35 +0100
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tails (4.4.1) unstable; urgency=medium
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  * Security fixes
    - Upgrade Tor Browser to 9.0.7-build1 (Closes: #17539).
    - Upgrade tor to 0.4.2.7 (Closes: #17531).
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    - Upgrade Thunderbird to 1:68.6.0-1~deb10u1 (MFSA-2020-10, DSA-4642).
    - Upgrade WebKitGTK to 2.26.4-1~deb10u2 (DSA-4641).
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  * Build system
    - lint_po: avoid race conditions when checking PO files (Closes: #17359).
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 -- Tails developers <tails@boum.org>  Sun, 22 Mar 2020 20:27:47 +0100
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tails (4.4) unstable; urgency=medium
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  * Security fixes
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    - Upgrade Tor Browser to 9.0.6-build2 (MFSA-2020-09).
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    - Upgrade Linux kernel to linux-image-5.4.0-4, currently at 5.4.19-1
      (Closes: #17477).
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    - Upgrade Thunderbird to 68.5.0-1~deb10u1 (MFSA-2020-07, Closes: #17481).
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    - Upgrade cURL to 7.64.0-4+deb10u1 (DSA-4633).
    - Upgrade evince to 3.30.2-3+deb10u1 (DSA-4624).
    - Upgrade Pillow to 5.4.1-2+deb10u1 (DSA-4631).
    - Upgrade ppp to 2.4.7-2+4.1+deb10u1 (DSA-4632).
    - Upgrade WebKitGTK to 2.26.4-1~deb10u1 (DSA-4627).
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  * Bugfixes
    - Fix missing firmware for RTL8822BE/RTL8822CE (See: #17323). Use the
      tails-workarounds provided firmwares until the firmware-realtek
      package is updated with the patch by Sjoerd Simons (Debian#935969).
      Note: This might not be sufficient to support those cards.

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  * Minor improvements and updates
    - Upgrade dogtail to 0.9.11-6.
    - Upgrade virtualbox to 6.1.4-dfsg-1.

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  * Build system
    - Vagrant build box: disable mitigation features for CPU
      vulnerabilities (Closes: #17386). Given the kind of things we do in
      our Vagrant build box, it seems very unlikely that vulnerabilities
      such as Spectre and Meltdown can be exploited in there.  Let's
      reclaim some of the performance cost of the corresponding mitigation
      features.
    - Enable website caching by default, with a way option to disable it
      (Closes: #17439).
    - Key the website cache on debian/changelog too (Closes: #17511).
    - Update APT snapshot of the Debian archive to 2020030101.
    - Add support for the tails-workarounds submodule.
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tails (4.3) unstable; urgency=medium
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  * Security fixes
    - Upgrade Tor Browser to 9.0.5-build2 (Closes: #17469).
    - Update Linux kernel to linux-image-5.4.0-3-amd64, currently at
      5.4.13-1 (Closes: #17443).
    - Upgrade Thunderbird to 1:68.4.1-1~deb10u1
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    - Upgrade WebKitGTK to 2.26.3-1~deb10u1 (DSA-4610).
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  * Bugfixes
    - live-persist: don't backup empty configuration files (Closes:
      #17112). In some cases, the previous code would overwrite a
      non-empty backup file with an empty one, making it harder to
      recover from the already painful #10976.
    - create-usb-image-from-iso: Run syslinux within proper chroot
      (Closes: #17179). Previously we ran syslinux from the host,
      which can lead to bugs if its versions differs from the one
      inside the chroot (which is what Tails will use later). Thanks
      to Johan Blåbäck for the patch!
    - Tails Upgrader: Fix progress bar not pulsating and hide useless
      OK button (Closes: #16603).

  * Minor improvements and updates
    - Upgrade tor to 0.4.2.6 (Closes: #17059).
    - Install the trezor package, which adds a command-line (only)
      tool for managing Trezor devices (Closes: #17463). Thanks to
      Pavol Rusnak for the patch!
    - As a consequence of the Linux kernel upgrade we also:
      * Upgrade aufs to 5.4.3 20200127.
      * Install VirtualBox guest tools and kernel modules from sid.

  * Build system
    - Upgrade snapshot of the Debian archive to 2020020302, including
      the 10.3 point release of Debian Buster (Closes: #17458).
    - Add opt-in caching of the wiki (Closes: #15342).
    - Use mksquashfs' -no-exports option even when the fastcomp build
      option is set. "fastcomp" is supposed to only tweak SquashFS
      compression settings, but so far it was also disabling the
      -no-exports option that we set for our release builds.
    - Drop a bunch of packages installed for ikiwiki for various
      (obsoloete) resons:
      * libfile-chdir-perl, libyaml-perl and libxml-simple-perl which
        was needed back when we built our own ikiwiki from Git  a
        looong time ago.
      * libtext-multimarkdown-perl used multimarkdown ikiwiki which
        its doubtful we ever will use.
      * libhtml-scrubber-perl, libhtml-template-perl,
        libhtml-parser-perl, libyaml-libyaml-perl and liburi-perl
        which are already installed as ikiwiki dependencies.
    - Install libimage-magick-perl instead of the perlmagick
      transitional package.
    - Don't install obsolete dependencies whois and eatmydata.
    - Consistently validate individual build options as we parse them.
      This is consistent with how we handled "fastcomp" already. Only
      compatibility checks between multiple build options really need
      to happen later, once we've parsed all build options.
    - Remove 5 years old transition code
    - Fully provision the Vagrant box every time it starts, and
      partially re-provision it for every build.
    - Behave correctly when disabling a previously set "offline" or
      "vmproxy+extproxy" build option.  Previously, setting one of
      these build options *once* would taint the Vagrant box forever
      with the resulting apt-cacher-ng configuration.
    - Shrink the apt-cacher-ng cache after a successful build too
      (Closes: #17288).
    - Set up infrastructure to retrieve log file from the VM even on
      build failure (Closes: #7749).
    - Always build from a fresh Git clone.
    - Set the permissions that Vagrant needs inside the source tree
      (Closes: #11411, #16607, #17289).

  * Test suite
    - Remove Seahorse key synchronization scenarios. These 2 scenarios
      never pass due to #17169, so currently:
      * They don't teach us anything new → no benefit.
      * Every time a developer looks at test suite results,
        they need to filter out this known problem, which takes time
        and trains us to ignore problems.

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 -- Tails developers <tails@boum.org>  Mon, 10 Feb 2020 14:08:59 +0100
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tails (4.2.2) unstable; urgency=medium
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  * Major changes
    - Upgrade Tor Browser to 9.0.4-build1 (MFSA-2020-03)

  * Bugfixes
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    - Avoid the Upgrader proposing to upgrade to the version
      that's already running (Closes: #17425)
    - Avoid 2 minutes delay while rebooting after applying an automatic
      upgrade (Closes: #17026)
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    - Make Thunderbird support TLS 1.3 (Closes: #17333)
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  * Build system
    - IUK generation: don't make all files in the SquashFS diff
      owned by root, otherwise an upgraded system cannot start
      (Closes: #17422)

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 -- Tails developers <tails@boum.org>  Mon, 13 Jan 2020 09:21:51 +0000
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tails (4.2) unstable; urgency=medium
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  * Major changes
    - Switch to a redesigned upgrade system (Closes: #15281), which:
      - removes the need for manual upgrades caused by lack of disk space
        on the Tails device
      - uses less RAM
    - Bump snapshot of the Debian archive to 2019122802

  * Security fixes
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    - Upgrade Tor Browser to 9.0.3 (Closes: #17402)
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    - Upgrade Linux to 5.3.15-1 (Closes: #17332)
      and upgrade the aufs module to 5.3-20191223
    - Upgrade Thunderbird to 1:68.3.0-2~deb10u1
    - Upgrade libsasl2 to 2.1.27+dfsg-1+deb10u1
    - Upgrade python3-ecdsa to 0.13-3+deb10u1

  * Bugfixes
    - KeePassXC:
      - Open ~/Persistent/keepassx.kdbx by default again (Closes: #17212)
      - Open the database specified by the user on the command-line, if any
      - Fix database renaming prompt
    - Upgrader:
      - Ensure debugging info lands in the Journal before we refer to it
      - Catch more download errors
    - Upgrade amd64-microcode to 3.20191218.1, which removes firmware
      updates that cause issues

  * Minor improvements and updates
    - Add metadata analysis tools used by SecureDrop (Closes: #17178)
    - Refresh the signing key before checking for available upgrades
      (Closes: #15279)
    - Port the Upgrader and perl5lib to a set of dependencies that are
      faster and have a lower memory footprint (Closes: #17152)
    - Ensure IUKs don't include files of our website if their content
      has not changed (refs: #15290)
    - Zero heap memory at allocation time and at free time (Closes: #17236)

  * Build system
    - Import the Upgrader and perl5lib codebases into tails.git
      (part of #7036)
    - lint_po: ignore pre-existing rply cache file that can cause
      trouble if it's corrupted (Closes: #17359)
    - Move generate-languages-list to auto/scripts
    - import-translations: work around the lack of usable branches
      in Tor's translation.git (Closes: #17279)
    - Build released IUKs on Jenkins and verify that they match
      those built locally by the Release Manager (Closes: #15287)
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    - Don't download every localized Tor Browser tarball: instead,
      use the new tarball that includes every langpacks (Closes: #17400)
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  * Test suite
    - Adapt for the "one single SquashFS diff" upgrade scheme
    - Chutney: update to upstream 33cbff7fc73aa51a785197c5f4afa5a91d81de9c
      (Closes: #16792)
    - Fix tagging of Chutney exit relays and bridge authorities
    - Tag Chutney clients as such
    - Wait for all Chutney nodes to have bootstrapped before assuming
      the simulated Tor network is ready
    - Don't try to save tor control sockets as artifacts
    - Add a crude script to generate IUKs for our test suite
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  * Bugfixes
    - Drop all network drivers from the initramfs to shrink its size
      drastically. Going over the 32 MiB mark might be the reason why so
      many Apple machines can't boot 4.1 while they could boot 4.0
      (Closes: #17320).
    - Only allow up to (but excluding) 32 MiB for initramfs accordingly.
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  * Minor improvements and updates
    - Fix escape sequence in tails-gdm-failed-to-start.service, to avoid a
      warning message (Closes: #17166).

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  * Major changes
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      (MFSA-2019-37).
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    - Upgrade Thunderbird to 68.2.2 (Closes: #16771, #17220, #17222, #17267).
    - Upgrade Enigmail to 2:2.1.3+ds1-4~deb10u2 accordingly.
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  * Security fixes
    - Upgrade Linux to 5.3.9-2 from sid (Closes: #17124).
    - Disable unprivileged userfaultfd syscall (Closes: #17196).
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    - Upgrade file to 1:5.35-4+deb10u1 (DSA-4550-1).
    - Upgrade FriBidi to 1.0.5-3.1+deb10u1 (DSA-4561-1).
    - Upgrade Ghostscript to 9.27~dfsg-2+deb10u3 (DSA-4569-1)
    - Upgrade Intel microcode to 3.20191112.1~deb10u1 (DSA-4565-1,
      CVE-2019-0117).
    - Upgrade libarchive to 3.3.3-4+deb10u1 (DSA-4557-1).
    - Upgrade libvpx to 1.7.0-3+deb10u1 (DSA-4578-1).
    - Upgrade libxslt to 1.1.32-2.2~deb10u1 (CVE-2019-18197).
    - Upgrade ncurses to 6.1+20181013-2+deb10u2 (CVE-2019-17594,
      CVE-2019-17595).
    - Upgrade Python 2.7 to 2.7.16-2+deb10u1 (CVE-2018-20852,
      CVE-2019-10160, CVE-2019-16056, CVE-2019-16935, CVE-2019-9740,
      CVE-2019-9947).
    - Upgrade Qt to 5.11.3+dfsg1-1+deb10u1 (DSA-4556-1).
    - Upgrade tcpdump to 4.9.3-1~deb10u1 (DSA-4547-1).
    - Upgrade WebKitGTK to 2.26.2-1~deb10+1 (DSA-4558-1, DSA-4563-1).
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  * Bugfixes
    - Remove TorBirdy (Closes: #17219, #17269).
    - Use keys.openpgp.org's Onion service as the default keyserver
      (Closes: #12689, #14770).
    - Fix ordering of GTK bookmarks setup vs. Tor Browser directories
      creation (Closes: #17206).
    - Bring back the "Show Passphrase" button in the Greeter
      (Closes: #17177).
    - Bring back "Open in Terminal" entry in the GNOME Files context menu
      (Closes: #17186).
    - Revert "Browsers: disable the Quantum Bar." (Closes: #17143).
    - Revert "Hide all Tor connection-related settings in
      about:preferences in all browsers" (Closes: #17214).
    - Wait until Tor has bootstrapped before we try to upgrade Additional
      Software (Closes: #17203).
    - Fix the "GDM failed to start" splash screen functionality
      (Closes: #17200).

  * Minor improvements and updates
    - htpdate: stop sending User-Agent that fakes Tor Browser
      (Closes: #12023).
    - HTP: replace encrypted.google.com with www.google.com.
    - Remove signal handler from Greeter UI file (Closes: #17240).
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    - Upgrade AMD microcode to 3.20191021.1.
    - Upgrade fonts-noto-cjk to 1:20170601+repack1-3+deb10u1
      (Debian#907999).
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  * Build system
    - Update Vagrant box to Buster (Closes: #16868).
    - Adjust to timedatectl's output on Buster.
    - Adjust to Buster's debootstrap.
    - Vagrant: ensure the chroot has a /proc filesystem while running
      postinstall.sh
    - Vagrant: install po4a from Stretch in the basebox.
    - build-tails: wait for NTP to be disabled before setting the desired
      date.
    - Bump APT snapshot of the Debian archive to 2019111801, including the
      10.2 point release of Buster (Closes: #17124, #17021).
    - Install virtualbox 6.0.12-dfsg-1 from our custom APT repository
      (Closes: #17161).

  * Test suite
    - Ensure we don't break tests by opening the Applications menu in
      post_vm_start_hook (Closes: #17164).
    - Improve GnuPG testing (Closes: #12689):
      · Switch to using sajolida's key.
      · Start adjusting for keys.openpgp.org.
      · Make the "GnuPG's dirmngr uses the configured keyserver" step
        actually test what it is meant to.
      · Make error strings better reflect what failure they are about.
      · Ensure dirmngr uses IPv4 since our CI runs on an IPv4-only
        infrastructure.
    - Ensure dirmngr picks up the changes we make to its configuration.
    - Switch backend keyservers (Closes: #14770).
    - Don't leave redir(1) processes behind (Closes: #14948).
    - Update image for Buster (Closes: #14770).
    - Update fragility status of Seahorse scenarios.
    - Avoid multiple instances of tcpdump writing to the same file,
      resulting in an unparsable network capture (Closes: #17102).
    - Update for Thunderbird 68 (Closes: #17269).

  * Documentation:
    - Remove or adapt mentions to Tails Installer as only installation
      method (Closes: #17204).
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  * Major changes
    - Upgrade Tor Browser to 9.0-build2, based on Firefox ESR 68.2.

  * Security fixes
    - Upgrade IBus to 1.5.19-4+deb10u1.0tails1 (Closes: #17144)
    - Upgrade sudo to 1.8.27-1+deb10u1

  * Bugfixes
    - Fix regressions brought by the integration of Tor Browser 9.0:
      · Fix non-English spellchecking (Closes: #17150)
      · Unsafe Browser: don't enable private browsing mode, don't display
        Tor Browser icons, hide the new "New identity" toolbar button
        (Closes: #17142)
      · Hide all Tor connection-related settings in about:preferences
        (Closes: #17157)
    - Fix Stealth Onion services in OnionShare (Closes: #17162)
    - Upgrade OpenSSL to 1.1.1d-0+deb10u2

  * Minor improvements and updates
    - Don't include the locales package (Closes: #17132)
    - Update htpdate's User-Agent to match Tor Browser 9.0's

  * Test suite
    - Only partially fill memory for userspace processes (Closes: #17104)
    - Drop the "Unsafe Browser has no proxy configured" step, that's hard
      to update and adds little value
    - Various updates for Tor Browser 9.0 final
    - Make the "SSH is using the default SocksPort" scenario more robust
      (Closes: #17163)
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 -- Tails developers <tails@boum.org>  Mon, 21 Oct 2019 10:24:56 +0000
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  * Major changes
    - Update Tor Browser to 9.0a7, based on Firefox ESR 68 (#16356).
    - Include a working version of Electrum: 3.3.8-0.1 (Closes: #16421).
      Accordingly:
      · Remove the obsolete "coin_chooser: Privacy" option (Closes: #15483).
      · Disable the update check (Closes: #15483).
    - Curate the list of languages in Tails Greeter (Closes: #16095).
      Only include languages which meet one of these conditions:
      · Have a PO file in tails.git (i.e. have at least one translated
        and reviewed string)
      · Are on our list of tier-1 supported languages.
    - Update Linux to 5.3.2-1~exp1 from Debian experimental (Closes: #17117).
    - Bump APT snapshots of the 'debian' and 'torproject' archives
      to 2019100904. This includes the update to the Buster 10.1
      point-release.

  * Security fixes
    - Drop NoScript customization that makes our web fingerprint diverge
      from Tor Browser's (related to #5362).
    - Enable Buster security APT sources (Closes: #17119).
    - Upgrade CUPS to 2.2.10-6+deb10u1 (CVE-2019-8696, CVE-2019-8675,
      and more security fixes).
    - Update GnuPG to 2.2.12-1+deb10u1, which mitigates the certificates
      flooding attack.
    - Update e2fsprogs to 1.44.5-1+deb10u2 (DSA-4535-1).
    - Update ghostscript to 9.27~dfsg-2+deb10u2 (DSA-4518-1, DSA-4499-1).
    - Update WebKitGTK to 2.24.4-1~deb10u1 (DSA-4515-1).
    - Update Pango to 1.42.4-7~deb10u1 (DSA-4496-1).
    - Update ffmpeg to 7:4.1.4-1~deb10u1 (DSA-4502-1).
    - Update expat to 2.2.6-2+deb10u1 (DSA-4530-1).
    - Update GLib to 2.58.3-2+deb10u1 (CVE-2019-13012).
    - Update libmariadb3 to 1:10.3.17-0+deb10u1 (various vulnerabilities).
    - Update NSS to 2:3.42.1-1+deb10u1 (CVE-2019-11719, CVE-2019-11727,
      CVE-2019-11729).
    - Update LibreOffice to 1:6.1.5-3+deb10u4 (DSA-4519-1, DSA-4501-1,
      DSA-4483-1, and CVE-2019-9848).
    - Update Samba to 2:4.9.5+dfsg-5+deb10u1 (DSA-4513-1).
    - Update OpenSSL to 1.1.1d-0+deb10u1 (DSA-4539-1).
    - Update libxslt to 1.1.32-2.1~deb10u1 (CVE-2019-11068, CVE-2019-13117,
      CVE-2019-13118).
    - Update zeromq3 to 4.3.1-4+deb10u1 (DSA-4477-1).
    - Update patch to 2.7.6-3+deb10u1 (DSA-4489-1).
    - Update Thunderbird to 1:60.9.0-1~deb10u1 (DSA-4523-1, DSA-4482-1).
    - Update wpasupplicant to 2:2.7+git20190128+0c1e29f-6+deb10u1 (DSA-4538-1).

  * Bugfixes
    - Ensure that tor-has-bootstrapped systemd units are stopped
      if tor@default.service stops; replace the tor-has-bootstrapped
      script with a tor_has_bootstrapped() function that checks the status
      of tails-tor-has-bootstrapped.target (Closes: #16664).
    - Fix MIME info data build reproducibility (Closes: #17023).
    - Fix missing GNOME bookmarks, by adding them earlier in the session
      login process (Closes: #17030).
    - Increase left dock width in GIMP's sessionrc (Closes: #16807).
    - Use hardware defaults for the touchpad click method (Closes: #17045).
    - Fix image thumbnails in GNOME Files (Closes: #17062).
    - Use the "intel" X.Org driver for Intel Iris Plus Graphics 640
      (Closes: #17060).
    - Fix sdhci-pci support.
    - Honor the "Formats" settings chosen in the Greeter (Closes: #16806).
    - Fix administration password not being applied in some cases
      (Closes: #13447).
    - Fix Greeter settings being applied when clicking "Cancel"
      (Closes: #17087).
    - Fix bridge information not always shown when the user selects
      bridge mode in the Greeter.
    - Fix path in whisperback's debugging info (Closes: #17109).
    - Fix Tor Browser functionality that was broken when it was started
      by clicking a link in Thunderbird (Closes: #17105).
    - Fix WhisperBack that was broken due to an expired X.509 certificate:
      stop using TLS (we already have end-to-end encryption via OpenPGP,
      plus end-to-end encryption and remote peer authentication via
      Tor hidden services). Also, switch to a v3 Onion service (Closes #17110).
    - Install Stretch's po4a (0.47-2) from our custom APT repository:
      the upgrade to Buster's version will need more work and coordination
      (Closes: #17127).
    - Fix hiding of the Add-ons manager in the Unsafe Browser hamburger menu.
      Regression introduced when we upgraded to Tor Browser based on Firefox
      ESR 60.
    - Mention USB images as a valid installation technique when trying
      to create a persistent volume on a device that can't have one
      (Closes: #17025).

  * Minor improvements and updates
    - Add iPhone USB tethering support (Closes: #16180).
    - Install Enigmail from Buster (Closes: #16978).
    - Disable GDM debug logs (Closes: #17011).
    - Hide less common keyboard layouts in the Greeter (Closes: #17084).
    - Major refactoring and cleanup of Tails Greeter (Closes: #17098).
    - Use a localized page for the Greeter help window, if available
      (Closes: #17101).
    - Separate Chinese into simplified and traditional scripts
      in the Greeter (Closes: #16094).
    - Allow the user to show the passphrase they're typing when creating
      a new persistent volume (Closes: #15102).
    - When saving persistence.conf or its backup, also run sync(1)
      on its parent directory (might help fix #10976).
    - Improve Tails Installer wording (Closes: #15564).
    - Update tor to 0.4.1.6-1~d10.buster+1.
    - Update VirtualBox guest drivers and tools to 6.0.12-dfsg-1.

  * Build system
    - SquashFS sort file: remove more noise.
    - Improve lint_po's UX (refs: #16864).
    - Import our pythonlib, previously included as a submodule (Closes: #16935).
    - Use a consistent, standard Python packages directory (Closes: #17082).

  * Test suite
    - Make various steps more robust:
      · "all notifications are disappeared" (Closes: #17012)
      · "Additional Software is correctly configured for package"
      · "I unlock and mount this VeraCrypt file container
        with Unlock VeraCrypt Volumes"
      · "I open the Unsafe Browser proxy settings dialog"
      · starting apps via the GNOME Activities Overview (Closes: #13469)
      · "I start the Tor Browser in offline mode"
    - Handle Guestfs::Error exceptions.
    - Provide guidance to fix problematic situation.
    - Update various reference images for Buster.
    - Don't attempt to find fuzzy matches with Sikuli unless fuzzy image
      matching is enabled (Closes: #17029).
    - Dogtail'ify all interactions with gedit (Closes: #17028).
    - New test: ensure that no experimental APT suite is enabled
      for deb.torproject.org (Closes: #16931).
    - Remove dead IRC-related code and dependencies.
    - Take into account that Evince and Tor Browser's print-to-file dialogs
      are rendered in a subtly different manner.
    - Drop fragile tag for actual Tails bugs (#17007).
    - Drop compatibility code for Cucumber < 2.4.0 (Closes: #17083).
    - Fix regression in the Persistent browser bookmarks scenario
      (Closes: #17125).
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 -- Tails developers <tails@boum.org>  Thu, 10 Oct 2019 11:23:53 +0000
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  * All changes included in Tails 3.16, see the corresponding changelog entry.
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  * Major changes
    - Upgrade tor to 0.4.1.5 (Closes: #16986).

  * Security fixes
    - Upgrade the Linux kernel to 5.2.0-2 (Closes: #16942).
      This mitigates the Spectre v1 swapgs vulnerability (CVE-2019-1125).
      Accordingly, aufs to aufs5.2 20190805.
    - Install enigmail from Bullseye (Closes: #16738).
      This fixes CVE-2019-12269.

  * Bugfixes
    - tails-unblock-network: only sleep until all-net-blacklist.conf is gone,
      instead of unconditionally delaying the login process for 5 seconds
      (Closes: #16805).
    - Terminate GDM's GNOME session after the amnesia user logs in,
      to free 200-300 MiB of memory (Closes: #12092).
      Temporarily enable GDM debug logs so we get enough information to fix
      any issue this might cause.
    - Make our KeePassXC wrapper translatable (Closes: #16952).
    - Adjust boot-time backports APT pinning for Buster.
    - Ensure we don't install unwanted packages even if they become
      "Priority: standard" again (Closes: #16949).
    - Move some GNOME apps to different menu categories (Closes: #16981).
    - Update HTP pools: replace boum.org (invalid certificate) with puscii.nl,
      replace www.myspace.com with myspace.com (the former redirects to
      the latter).
    - AppArmor: allow OnionShare to open URLs with Tor Browser (Closes: #16914).
    - Make file transfers with Spice reliable.

  * Minor improvements and updates
    - Greeter: improve formatting of printed exceptions.
    - Use the same icon for Tails Documentation in the Applications menu
      as on te Desktop (Closes: #16800).
    - Drop migration path from GnuPG persistent configuration created
      in the Tails 2.x era.
    - Remove various hacks that we don't need on Buster anymore.
    - Stop installing libcaribou-gtk3-module (Closes: #16757).
    - Stop installing python-cairo: mat2 does not use it anymore.
    - tails-unblock-network: have udev reload the databases it uses.
      This should avoid our fix for #16805 introducing regressions.

  * Build system
    - Bump APT snapshot of the 'debian' and 'torproject' archives
      to 2019090202.
    - Import the Greeter codebase into tails.git (Closes: #16912).
    - Explicitly install gnome-shell to make the set of installed packages
      more deterministic (related to #16947).
    - Don't try to follow symlinks when normalizing timestamps on source files.
    - Add missing "set -u" to build-time hook.
    - Use consistent method to extract translatable strings from Glade files.
    - Create gdm-tails related files from the original GNOME files
      (Closes: #12551).
    - Stop installing libimage-exiftool-perl explicitly: mat2 depends on it
      already.
    - Rakefile: disable compression when retrieving artifacts via scp.
      This makes this build step faster on systems that have SSH compression
      enabled by default.
    - import-translations: use tails-misc_release for tails.git's PO files
      (i.e. the Tails part of #16774).
    - Use squashfs-tools from sid (Closes: #16637).
    - Lower VM_MEMORY_BASE to 1536M.
    - Remove unneeded package cleanup (Closes: #16950).

  * Test suite
    - New scenario: installing with GNOME Disks from a USB image
      (Closes: #16004).
    - New scenarios: VeraCrypt PIM support (Closes: #15946).
    - Revert timeout bump that's not needed anymore.
    - Add a showing method on Dogtail objects.
    - VeraCrypt: ensure the temporary keyfile file is not garbage collected
      while we still need it.
    - Remote shell: print traceback to stderr so we can see it.
    - Install Dogtail from Bullseye and run it with Python 3 (Closes: #16976).
      This gives us UTF-8 support. Accordingly, drop anonym's "showingOnly"
      patch that was merged upstream, and port some test suite code to Dogtail,
      which we could not do before it got UTF-8 support.
    - Dogtail'ify some steps.
    - Make "^the Tor Browser shows the "([^"]+)" error$" step more robust
      (Closes: #11592.
    - Make the "the support documentation page opens in Tor Browser" step more
      robust (Closes: #15321)
    - Remove a bunch of obsolete @fragile tags, update the reasons why
      the remaining ones are fragile, and add some missing @fragile tags.
    - Drop useless code based on wrong assumptions (refs: #13470).
    - Make the "I set an administration password" step more robust.

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  * Major changes
    - Upgrade to a snapshot of Debian 10 (Buster) from 2018-08-06.

  * Removed features
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    - Remove scribus completely (refs: 16290).
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    - Remove LibreOffice Math (#16911).

  * Bugfixes
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    - Fix Electrum wrapper's persistence check (Closes: #16821).
    - Remove pre-generated Pidgin accounts (Closes: #16744).
    - Hide the security level button in the unsafe browser (Closes:
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      #16735).
    - Only hide unlocked TailsData partitions from the boot device
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      (Closes: #16789).
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  * Minor improvements and updates
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    - Remove KeePassX and replace it with KeePassXC (Closes:
      #15297). As KeePassX was used around for a longer time, we don't
      need automatic upgrading cappability from old KeePass file
      format (Tails 2 times). The user can still import those old
      files, if they want to access it.
    - Ship a pre-compiled AppArmor policy to make boot faster (Closes:
      #16138).
    - Change the splash screen for Tails 4.0 (#16837). Add SVG source
      while we're at it!
    - Remove our predefined bookmarks and ship default upstream Tor
      Browser bookmarks instead (Closes: #15895).
    - Install bolt for improved Thunderbolt support (Closes: #5463).
    - Don't display the Home launcher on the desktop (Closes: #16799).
      Since the switch to the desktop-icons GNOME Shell extension, the
      nicer XDG-blah name ("Home" in English, translated in many
      languages) is not used to label this launcher anymore: instead,
      the name of the directory is displayed, in this case: "amnesia",
      which makes no sense to our users. Our other options to fix that
      are more costly and we've decided a while ago, when I proposed
      to remove the desktop icons, to keep them until they were too
      expensive to support. So this one goes: we have the Places menu
      already.
    - Add Files to favorite apps (Closes: #16799). This gives another
      entry point to the home folder, which partially mitigates any UX
      regression that might be caused by the previous changelog entry.
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    - Explicitly install imagemagick. We ship it on purpose (see
      [[contribute/meetings/201707]]).
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    - MAT:
      * Drop obsolete optional MAT dependencies it isn't using any
        more.
      * Stop explicitly installing MAT dependencies. The package
        depends on those so we don't need to pull them ourselves.
    - Move translations from root-terminal.desktop.in into own PO
      files (Closes: #15335).
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    - Drop obsolete live-boot patch: the bug it workarounds only
      happens with CONFIG_AUFS_DEBUG enabled. We disable
      CONFIG_AUFS_DEBUG in config/chroot_local-hooks/13-aufs and the
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      Debian package did it as well (Refs: Debian#886329).
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    - Rename /usr/share/amnesia to /usr/share/tails.
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    - Drop APT pinning for non-existing live.debian.net, that we
      haven't used since 2010.
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    - Don't install the cryptsetup initramfs integration and startup
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      scripts (Closes: #16264). We probably only need the binaries.
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      Not installing the initramfs integration will get rid of some
      noise
    - Don't install full-blown cryptsetup, take 2 (refs: #15690). We've
      stopped installing it (#16264) but this branch independently
      reintroduced it.
    - Disable live-tools.service (Closes: #16324). This service is only
      useful to display the "Please remove the live-medium, close the
      tray (if any) and press ENTER to continue:" prompt on shutdown,
      that we don't want to display in Tails: shutdown and memory
      erasure should not require a confirmation once the user has
      triggered it. In Stretch this code was broken and we were
      relying on this. But the Buster upgrade of this code has
      repaired it, so I sometimes see that prompt. This might also
      explain some issues such as #16312.
    - AppArmor: allow cups-brf, driverless, and gutenprint53+usb
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      printer backends (Closes: #15030). Technically, cups-brf and
      driverless are not third-party and should be confined more
      strictly with "ixr", under the cupsd profile. But I don't know
      how to to test these backends and confining them more strictly
      may break them.  Anyway, that's an upstream matter: the purpose
      of our Tails-specific patch is to replace the third party
      backends /usr/lib/cups/backend/* catch all rule, that doesn't
      work for us, and not to keep the list of backends which come
      with CUPS up-to-date.
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    - Make export_gnome_env() exit early if gnome-shell isn't running.
      Without this e.g. the automated test suite, which will call
      export_gnome_env() before gnome-shell is running, will have its
      journal polluted with errors about this. This is not the first
      time I see this and get worried and waste minutes investigating,
      so let's just fix it.

  * Build system
    - Bump VM_MEMORY_BASE to 2048M. With the previous 1024M setting,
      the squashfs preparation gets OOM-killed.
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    - Limit the memory used by mksquashfs to 512M (Closes: #16177). By
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      default mksquashfs will use 25% of the physical memory. So when
      we use the "ram" build option, build in a VM with 13GB of RAM,
      of which up to 12G is supposed to be used by the build tmpfs,
      mksquashfs will try using 13/4 = 3.25G of memory. And then it
      will get reaped by the OOM killer more or less occasionally
      depending on how much space is really used in the build tmpfs
      and how much memory the rest of the system is using. So let's
      limit the memory used by mksquashfs to 50% of the memory we
      allocate to the build VM, excluding the part of it that we
      expect tmpfs data to fill. In passing, the fact mksquashfs does
      not get killed every time suggests that our current
      BUILD_SPACE_REQUIREMENT value exceeds the real needs of a build:
      a value around 10 or 11G should be enough. But that will be for
      another commit.
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    - Use xz with default settings to compress non-release SquashFS
      (refs: #16177). squashfs-tools 1:4.3-11, used to build
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      feature/buster, does not consistently honor the value passed to
      -mem: the xz compressor does but at least the gzip and lzo ones
      don't. This makes the build often fail because mksquashfs gets
      reaped by the OOM-killer. Our only other option is currently to
      bump the build VM memory a lot, which is going to be painful on
      developers' systems and might not be an option on Jenkins. So
      let's fall back to xz with default settings (not the crazy slow
      but efficient we use at release time) when building non-release
      images.
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    - Rename the "gzipcomp" build option to "fastcomp". What matters
      in the "user" interface is not the exact algorithm that's used,
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      it's the fact it's supposed to be faster than the compression
      settings we use to build releases. We may have to changes these
      fast(er) settings occasionally, possibly to use a non-gzip
      algorithm. So let's keep supporting "gzipcomp" for backward
      compatibility but stop documenting it. Instead, support and
      document "fastcomp".
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    - Add the vmproxy+extproxy build option. When enabled, use the
      vmproxy but configure it to in turn use the exproxy set via the
      http_proxy environment variable.
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    - Support the case when we don't ship a custom AppArmor feature
      set. Let's keep this sanity check for the times when we do ship
      a custom feature set, but building an ISO without a custom one
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      should remain supported. (Closes: #15149)
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    - Don't remove packages whose deinstallation removes most of the
      system; don't explicitly remove packages that are taken care of
      by "apt-get autoremove" already. On Buster, removing dpkg-dev
      or make deinstalls python3, gnome-shell and more.
    - Install all "Priority: standard" packages via an explicit
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      packages list instead of via --tasks (Closes: #15690). This will
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      make it easier to remove some of these packages from the list of
      those that should be installed in the first place, as opposed to
      letting them be installed by tasksel only to uninstall them
      later. I've seeded tails-000-standard.list with the output of:
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      tasksel --task-packages standard | sort … run on a clean Buster
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      system. Also:
       * live-build forcibly translates --packages-lists="standard"
         into "tasksel install standard", so to make this change
         effective we also need to switch to "--packages-lists
         minimal" or "--packages-lists none". The former has
         problematic side-effects so let's use the latter.
       * Add to tails-common.list some of the packages that were
         previously installed automatically, e.g. via live-build's
         lists/standard → lists/minimal.

  * Test suite
    - Tons of tiny updates for the Stretch → Buster transition, mainly
      updated reference images, but also a few other trivial changes
      (e.g. close with Alt+F4 instead of menu, or vice versa) due to
      changes in applications.
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    - Drop test case about migrating from a Jessie-area persistent
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      volume. If our code happens to support Tails 2.x → 4.x upgrades
      without going through 3.x, fine. But let's not spend cycles in
      our CI to guarantee this.
    - Revert "Test suite: add backward compatibility with redir <
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      3.0." We don't support running the test suite on Jessie anymore.
    - Adjust dhclient listening address for Buster.
    - Bump timeout for poweroff from 3 to 10 minutes (Refs: #16312).
    - Adjust dogtail patterns for gobby test (Closes: #16335). With the