NEWS.md

New in snapd 2.66.1:

• AppArmor prompting (experimental): Fix kernel prompting support check
• Allow kernel snaps to have content slots
• Fix ignoring snaps in try mode when amending

New in snapd 2.66:

• AppArmor prompting (experimental): expand kernel support checks
• AppArmor prompting (experimental): consolidate error messages and add error kinds
• AppArmor prompting (experimental): grant /v2/snaps/{name} via snap-interfaces-requests-control
• AppArmor prompting (experimental): add checks for duplicate pattern variants
• Registry views (experimental): add handlers that commit (and cleanup) registry transactions
• Registry views (experimental): add a snapctl fail command for rejecting registry transactions
• Registry views (experimental): allow custodian snaps to implement registry hooks that modify and save registry data
• Registry views (experimental): run view-changed hooks only for snaps plugging views affected by modified paths
• Registry views (experimental): make registry transactions serialisable
• Snap components: handle refreshing components to revisions that have been on the system before
• Snap components: enable creating Ubuntu Core images that contain components
• Snap components: handle refreshing components independently of snaps
• Snap components: handle removing components when refreshing a snap that no longer defines them
• Snap components: extend snapd Ubuntu Core installation API to allow for picking optional snaps and components to install
• Snap components: extend kernel.yaml with "dynamic-modules", allowing kernel to define a location for kmods from component hooks
• Snap components: renamed component type "test" to "standard"
• Desktop IDs: support installing desktop files with custom names based on desktop-file-ids desktop interface plug attr
• Auto-install snapd on classic systems as prerequisite for any non-essential snap install
• Support loading AppArmor profiles on WSL2 with non-default kernel and securityfs mounted
• Debian/Fedora packaging updates
• Add snap debug command for investigating execution aspects of the snap toolchain
• Improve snap pack error for easier parsing
• Add support for user services when refreshing snaps
• Add snap remove --terminate flag for terminating running snap processes
• Support building FIPS complaint snapd deb and snap
• Fix to not use nss when looking up for users/groups from snapd snap
• Fix ordering in which layout changes are saved
• Patch snapd snap dynamic linker to ignore LD_LIBRARY_PATH and related variables
• Fix libexec dir for openSUSE Slowroll
• Fix handling of the shared snap directory for parallel installs
• Allow writing to /run/systemd/journal/dev-log by default
• Avoid state lock during snap removal to avoid delaying other snapd operations
• Add nomad-support interface to enable running Hashicorp Nomad
• Add intel-qat interface
• u2f-devices interface: add u2f trustkey t120 product id and fx series fido u2f devices
• desktop interface: improve integration with xdg-desktop-portal
• desktop interface: add desktop-file-ids plug attr to desktop interface
• unity7 interface: support desktop-file-ids in desktop files rule generation
• desktop-legacy interface: support desktop-file-ids in desktop files rule generation
• desktop-legacy interface: grant access to gcin socket location
• login-session-observe interface: allow introspection
• custom-device interface: allow to explicitly identify matching device in udev tagging block
• system-packages-doc interface: allow reading /usr/share/javascript
• modem-manager interface: add new format of WWAN ports
• pcscd interface: allow pcscd to read opensc.conf
• cpu-control interface: add IRQ affinity control to cpu_control
• opengl interface: add support for cuda workloads on Tegra iGPU in opengl interface

New in snapd 2.65.3:

• Fix missing aux info from store on snap setup

New in snapd 2.65.2:

• Bump squashfuse from version 0.5.0 to 0.5.2 (used in snapd deb only)

New in snapd 2.65.1:

• Support building snapd using base Core22 (Snapcraft 8.x)
• FIPS: support building FIPS complaint snapd variant that switches to FIPS mode when the system boots with FIPS enabled
• AppArmor: update to latest 4.0.2 release
• AppArmor: enable using ABI 4.0 from host parser
• AppArmor: fix parser lookup
• AppArmor: support AppArmor snippet priorities
• AppArmor: allow reading cgroup memory.max file
• AppArmor: allow using snap-exec coming from the snapd snap when starting a confined process with jailmode
• AppArmor prompting (experimental): add checks for prompting support, include prompting status in system key, and restart snapd if prompting flag changes
• AppArmor prompting (experimental): include prompt prefix in AppArmor rules if prompting is supported and enabled
• AppArmor prompting (experimental): add common types, constraints, and mappings from AppArmor permissions to abstract permissions
• AppArmor prompting (experimental): add path pattern parsing and matching
• AppArmor prompting (experimental): add path pattern precedence based on specificity
• AppArmor prompting (experimental): add packages to manage outstanding request prompts and rules
• AppArmor prompting (experimental): add prompting API and notice types, which require snap-interfaces-requests-control interface
• AppArmor prompting (experimental): feature flag can only be enabled if prompting is supported, handler service connected, and the service can be started
• Registry views (experimental): rename from aspects to registries
• Registry views (experimental): support reading registry views and setting/unsetting registry data using snapctl
• Registry views (experimental): fetch and refresh registry assertions as needed
• Registry views (experimental): restrict view paths from using a number as first character and view names to storage path style patterns
• Snap components: support installing snaps and components from files at the same time (no REST API/CLI)
• Snap components: support downloading components related assertions from the store
• Snap components: support installing components from the store
• Snap components: support removing components individually and during snap removal
• Snap components: support kernel modules as components
• Snap components: support for component install, pre-refresh and post-refresh hooks
• Snap components: initial support for building systems that contain components
• Refresh app awareness (experimental): add data field for /v2/changes REST API to allow associating each task with affected snaps
• Refresh app awareness (experimental): use the app name from .desktop file in notifications
• Refresh app awareness (experimental): give snap-refresh-observe interface access to /v2/snaps/{name} endpoint
• Improve snap-confine compatibility with nvidia drivers
• Allow re-exec when SNAP_REEXEC is set for unlisted distros to simplify testing
• Allow mixing revision and channel on snap install
• Generate GNU build ID for Go binaries
• Add missing etelpmoc.sh for shell completion
• Do not attempt to run snapd on classic when re-exec is disabled
• Packaging/build maintenance for Debian sid, Fedora, Arch, openSuse
• Add snap debug API command to enable running raw queries
• Enable snap-confine snap mount directory detection
• Replace global seccomp filter with deny rules in standard seccomp template
• Remove support for Ubuntu Core Launcher (superseded by snap-confine)
• Support creating pending serial bound users after serial assertion becomes available
• Support disabling cloud-init using kernel command-line
• In hybrid systems, apps can refresh without waiting for restarts required by essential snaps
• Ship snap-debug-info.sh script used for system diagnostics
• Improve error messages when attempting to run non-existent snap
• Switch to -u UID:GID for strace-static
• Support enabling snapd logging with snap set system debug.snapd.{log,log-level}
• Add options system.coredump.enable and system.coredump.maxuse to support using systemd-coredump on Ubuntu Core
• Provide documentation URL for 'snap interface '
• Fix snapd riscv64 build
• Fix restarting activated services instead of their activator units (i.e. sockets, timers)
• Fix potential unexpected auto-refresh of snap on managed schedule
• Fix potential segfault by guarding against kernel command-line changes on classic system
• Fix proxy entries in /etc/environment with missing newline that caused later manual entries to not be usable
• Fix offline remodelling by ignoring prerequisites that will otherwise be downloaded from store
• Fix devmode seccomp deny regression that caused spamming the log instead of actual denies
• Fix snap lock leak during refresh
• Fix not re-pinning validation sets that were already pinned when enforcing new validation sets
• Fix handling of unexpected snapd runtime failure
• Fix /v2/notices REST API skipping notices with duplicate timestamps
• Fix comparing systemd versions that may contain pre-release suffixes
• Fix udev potentially starting before snap-device-helper is made available
• Fix race in snap seed metadata loading
• Fix treating cloud-init exit status 2 as error
• Fix to prevent sending refresh complete notification if snap snap-refresh-observe interface is connected
• Fix to queue snapctl service commands if run from the default-configure hook to ensure they get up-to-date config values
• Fix stop service failure when the service is not actually running anymore
• Fix parsing /proc/PID/mounts with spaces
• Add registry interface that provides snaps access to a particular registry view
• Add snap-interfaces-requests-control interface to enable prompting client snaps
• steam-support interface: remove all AppArmor and seccomp restrictions to improve user experience
• opengl interface: improve compatibility with nvidia drivers
• home interface: autoconnect home on Ubuntu Core Desktop
• serial-port interface: support RPMsg tty
• display-control interface: allow changing LVDS backlight power and brightness
• power-control interface: support for battery charging thesholds, type/status and AC type/status
• cpu-control interface: allow CPU C-state control
• raw-usb interface: support RPi5 and Thinkpad x13s
• custom-device interface: allow device file locking
• lxd-support interface: allow LXD to self-manage its own cgroup
• network-manager interface: support MPTCP sockets
• network-control interface: allow plug/slot access to gnutls config and systemd resolved cache flushing via D-Bus
• network-control interface: allow wpa_supplicant dbus api
• gpio-control interface: support gpiochip* devices
• polkit interface: fix "rw" mount option check
• u2f-devices interface: enable additional security keys
• desktop interface: enable kde theming support

New in snapd 2.64:

• Support building snapd using base Core22 (Snapcraft 8.x)
• FIPS: support building FIPS complaint snapd variant that switches to FIPS mode when the system boots with FIPS enabled
• AppArmor: update to AppArmor 4.0.1
• AppArmor: support AppArmor snippet priorities
• AppArmor prompting: add checks for prompting support, include prompting status in system key, and restart snapd if prompting flag changes
• AppArmor prompting: include prompt prefix in AppArmor rules if prompting is supported and enabled
• AppArmor prompting: add common types, constraints, and mappings from AppArmor permissions to abstract permissions
• AppArmor prompting: add path pattern parsing and matching
• Registry views (experimental): rename from aspects to registries
• Registry views (experimental): support reading registry views using snapctl
• Registry views (experimental): restrict view paths from using a number as first character and view names to storage path style patterns
• Snap components: support installing snaps and components from files at the same time (no REST API/CLI)
• Snap components: support downloading components related assertions from the store
• Snap components: support installing components from the store (no REST API/CLI)
• Snap components: support removing components (REST API, no CLI)
• Snap components: started support for component hooks
• Snap components: support kernel modules as components
• Refresh app awareness (experimental): add data field for /v2/changes REST API to allow associating each task with affected snaps
• Refresh app awareness (experimental): use the app name from .desktop file in notifications
• Refresh app awareness (experimental): give snap-refresh-observe interface access to /v2/snaps/{name} endpoint
• Allow re-exec when SNAP_REEXEC is set for unlisted distros to simplify testing
• Generate GNU build ID for Go binaries
• Add missing etelpmoc.sh for shell completion
• Do not attempt to run snapd on classic when re-exec is disabled
• Packaging/build maintenance for Debian sid, Fedora, Arch, openSuse
• Add snap debug api command to enable running raw queries
• Enable snap-confine snap mount directory detection
• Replace global seccomp filter with deny rules in standard seccomp template
• Remove support for Ubuntu Core Launcher (superseded by snap-confine)
• Support creating pending serial bound users after serial assertion becomes available
• Support disabling cloud-init using kernel command-line
• In hybrid systems, apps can refresh without waiting for restarts required by essential snaps
• Ship snap-debug-info.sh script used for system diagnostics
• Improve error messages when attempting to run non-existent snap
• Switch to -u UID:GID for strace-static
• Support enabling snapd logging with snap set system debug.snapd.{log,log-level}
• Fix restarting activated services instead of their activator units (i.e. sockets, timers)
• Fix potential unexpected auto-refresh of snap on managed schedule
• Fix potential segfault by guarding against kernel command-line changes on classic system
• Fix proxy entries in /etc/environment with missing newline that caused later manual entries to not be usable
• Fix offline remodelling by ignoring prerequisites that will otherwise be downloaded from store
• Fix devmode seccomp deny regression that caused spamming the log instead of actual denies
• Fix snap lock leak during refresh
• Fix not re-pinning validation sets that were already pinned when enforcing new validation sets
• Fix handling of unexpected snapd runtime failure
• Fix /v2/notices REST API skipping notices with duplicate timestamps
• Fix comparing systemd versions that may contain pre-release suffixes
• Fix udev potentially starting before snap-device-helper is made available
• Fix race in snap seed metadata loading
• Fix treating cloud-init exit status 2 as error
• Fix to prevent sending refresh complete notification if snap snap-refresh-observe interface is connected
• Fix to queue snapctl service commands if run from the default-configure hook to ensure they get up-to-date config values
• Fix stop service failure when the service is not actually running anymore
• Add registry interface that provides snaps access to a particular registry view
• steam-support interface: relaxed AppArmor and seccomp restrictions to improve user experience
• home interface: autoconnect home on Ubuntu Core Desktop
• serial-port interface: support RPMsg tty
• display-control interface: allow changing LVDS backlight power and brightness
• power-control interface: support for battery charging thesholds, type/status and AC type/status
• cpu-control interface: allow CPU C-state control
• raw-usb interface: support RPi5 and Thinkpad x13s
• custom-device interface: allow device file locking
• lxd-support interface: allow LXD to self-manage its own cgroup
• network-manager interface: support MPTCP sockets
• network-control interface: allow plug/slot access to gnutls config and systemd resolved cache flushing via D-Bus

New in snapd 2.63:

• Support for snap services to show the current status of user services (experimental)
• Refresh app awareness: record snap-run-inhibit notice when starting app from snap that is busy with refresh (experimental)
• Refresh app awareness: use warnings as fallback for desktop notifications (experimental)
• Aspect based configuration: make request fields in the aspect-bundle's rules optional (experimental)
• Aspect based configuration: make map keys conform to the same format as path sub-keys (experimental)
• Aspect based configuration: make unset and set behaviour similar to configuration options (experimental)
• Aspect based configuration: limit nesting level for setting value (experimental)
• Components: use symlinks to point active snap component revisions
• Components: add model assertion support for components
• Components: fix to ensure local component installation always gets a new revision number
• Add basic support for a CIFS remote filesystem-based home directory
• Add support for AppArmor profile kill mode to avoid snap-confine error
• Allow more than one interface to grant access to the same API endpoint or notice type
• Allow all snapd service's control group processes to send systemd notifications to prevent warnings flooding the log
• Enable not preseeded single boot install
• Update secboot to handle new sbatlevel
• Fix to not use cgroup for non-strict confined snaps (devmode, classic)
• Fix two race conditions relating to freedesktop notifications
• Fix missing tunables in snap-update-ns AppArmor template
• Fix rejection of snapd snap udev command line by older host snap-device-helper
• Rework seccomp allow/deny list
• Clean up files removed by gadgets
• Remove non-viable boot chains to avoid secboot failure
• posix_mq interface: add support for missing time64 mqueue syscalls mq_timedreceive_time64 and mq_timedsend_time64
• password-manager-service interface: allow kwalletd version 6
• kubernetes-support interface: allow SOCK_SEQPACKET sockets
• system-observe interface: allow listing systemd units and their properties
• opengl interface: enable use of nvidia container toolkit CDI config generation

New in snapd 2.62:

• Aspects based configuration schema support (experimental)
• Refresh app awareness support for UI (experimental)
• Support for user daemons by introducing new control switches --user/--system/--users for service start/stop/restart (experimental)
• Add AppArmor prompting experimental flag (feature currently unsupported)
• Installation of local snap components of type test
• Packaging of components with snap pack
• Expose experimental features supported/enabled in snapd REST API endpoint /v2/system-info
• Support creating and removing recovery systems for use by factory reset
• Enable API route for creating and removing recovery systems using /v2/systems with action create and /v2/systems/{label} with action remove
• Lift requirements for fde-setup hook for single boot install
• Enable single reboot gadget update for UC20+
• Allow core to be removed on classic systems
• Support for remodeling on hybrid systems
• Install desktop files on Ubuntu Core and update after snapd upgrade
• Upgrade sandbox features to account for cgroup v2 device filtering
• Support snaps to manage their own cgroups
• Add support for AppArmor 4.0 unconfined profile mode
• Add AppArmor based read access to /etc/default/keyboard
• Upgrade to squashfuse 0.5.0
• Support useradd utility to enable removing Perl dependency for UC24+
• Support for recovery-chooser to use console-conf snap
• Add support for --uid/--gid using strace-static
• Add support for notices (from pebble) and expose via the snapd REST API endpoints /v2/notices and /v2/notice
• Add polkit authentication for snapd REST API endpoints /v2/snaps/{snap}/conf and /v2/apps
• Add refresh-inhibit field to snapd REST API endpoint /v2/snaps
• Add refresh-inhibited select query to REST API endpoint /v2/snaps
• Take into account validation sets during remodeling
• Improve offline remodeling to use installed revisions of snaps to fulfill the remodel revision requirement
• Add rpi configuration option sdtv_mode
• When snapd snap is not installed, pin policy ABI to 4.0 or 3.0 if present on host
• Fix gadget zero-sized disk mapping caused by not ignoring zero sized storage traits
• Fix gadget install case where size of existing partition was not correctly taken into account
• Fix trying to unmount early kernel mount if it does not exist
• Fix restarting mount units on snapd start
• Fix call to udev in preseed mode
• Fix to ensure always setting up the device cgroup for base bare and core24+
• Fix not copying data from newly set homedirs on revision change
• Fix leaving behind empty snap home directories after snap is removed (resulting in broken symlink)
• Fix to avoid using libzstd from host by adding to snapd snap
• Fix autorefresh to correctly handle forever refresh hold
• Fix username regex allowed for system-user assertion to not allow '+'
• Fix incorrect application icon for notification after autorefresh completion
• Fix to restart mount units when changed
• Fix to support AppArmor running under incus
• Fix case of snap-update-ns dropping synthetic mounts due to failure to match desired mount dependencies
• Fix parsing of base snap version to enable pre-seeding of Ubuntu Core Desktop
• Fix packaging and tests for various distributions
• Add remoteproc interface to allow developers to interact with Remote Processor Framework which enables snaps to load firmware to ARM Cortex microcontrollers
• Add kernel-control interface to enable controlling the kernel firmware search path
• Add nfs-mount interface to allow mounting of NFS shares
• Add ros-opt-data interface to allow snaps to access the host /opt/ros/ paths
• Add snap-refresh-observe interface that provides refresh-app-awareness clients access to relevant snapd API endpoints
• steam-support interface: generalize Pressure Vessel root paths and allow access to driver information, features and container versions
• steam-support interface: make implicit on Ubuntu Core Desktop
• desktop interface: improved support for Ubuntu Core Desktop and limit autoconnection to implicit slots
• cups-control interface: make autoconnect depend on presence of cupsd on host to ensure it works on classic systems
• opengl interface: allow read access to /usr/share/nvidia
• personal-files interface: extend to support automatic creation of missing parent directories in write paths
• network-control interface: allow creating /run/resolveconf
• network-setup-control and network-setup-observe interfaces: allow busctl bind as required for systemd 254+
• libvirt interface: allow r/w access to /run/libvirt/libvirt-sock-ro and read access to /var/lib/libvirt/dnsmasq/**
• fwupd interface: allow access to IMPI devices (including locking of device nodes), sysfs attributes needed by amdgpu and the COD capsule update directory
• uio interface: allow configuring UIO drivers from userspace libraries
• serial-port interface: add support for NXP Layerscape SoC
• lxd-support interface: add attribute enable-unconfined-mode to require LXD to opt-in to run unconfined
• block-devices interface: add support for ZFS volumes
• system-packages-doc interface: add support for reading jquery and sphinx documentation
• system-packages-doc interface: workaround to prevent autoconnect failure for snaps using base bare
• microceph-support interface: allow more types of block devices to be added as an OSD
• mount-observe interface: allow read access to /proc/{pid}/task/{tid}/mounts and proc/{pid}/task/{tid}/mountinfo
• polkit interface: changed to not be implicit on core because installing policy files is not possible
• upower-observe interface: allow stats refresh
• gpg-public-keys interface: allow creating lock file for certain gpg operations
• shutdown interface: allow access to SetRebootParameter method
• media-control interface: allow device file locking
• u2f-devices interface: support for Trustkey G310H, JaCarta U2F, Kensington VeriMark Guard, RSA DS100, Google Titan v2

New in snapd 2.61.3:

• Install systemd files in correct location for 24.04

New in snapd 2.61.2:

• Fix to enable plug/slot sanitization for prepare-image
• Fix panic when device-service.access=offline
• Support offline remodeling
• Allow offline update only remodels without serial
• Fail early when remodeling to old model revision
• Fix to enable plug/slot sanitization for validate-seed
• Allow removal of core snap on classic systems
• Fix network-control interface denial for file lock on /run/netns
• Add well-known core24 snap-id
• Fix remodel snap installation order
• Prevent remodeling from UC18+ to UC16
• Fix cups auto-connect on classic with cups snap installed
• u2f-devices interface support for GoTrust Idem Key with USB-C
• Fix to restore services after unlink failure
• Add libcudnn.so to Nvidia libraries
• Fix skipping base snap download due to false snapd downgrade conflict

New in snapd 2.61.1:

• Stop requiring default provider snaps on image building and first boot if alternative providers are included and available
• Fix auth.json access for login as non-root group ID
• Fix incorrect remodelling conflict when changing track to older snapd version
• Improved check-rerefresh message
• Fix UC16/18 kernel/gadget update failure due volume mismatch with installed disk
• Stop auto-import of assertions during install modes
• Desktop interface exposes GetIdletime
• Polkit interface support for new polkit versions
• Fix not applying snapd snap changes in tracked channel when remodelling

New in snapd 2.61:

• Fix control of activated services in 'snap start' and 'snap stop'
• Correctly reflect activated services in 'snap services'
• Disabled services are no longer enabled again when snap is refreshed
• interfaces/builtin: added support for Token2 U2F keys
• interfaces/u2f-devices: add Swissbit iShield Key
• interfaces/builtin: update gpio apparmor to match pattern that contains multiple subdirectories under /sys/devices/platform
• interfaces: add a polkit-agent interface
• interfaces: add pcscd interface
• Kernel command-line can now be edited in the gadget.yaml
• Only track validation-sets in run-mode, fixes validation-set issues on first boot.
• Added support for using store.access to disable access to snap store
• Support for fat16 partition in gadget
• Pre-seed authority delegation is now possible
• Support new system-user name daemon
• Several bug fixes and improvements around remodelling
• Offline remodelling support

New in snapd 2.60.4:

• Switch to plug/slot in the "qualcomm-ipc-router" interface but keeping backward compatibility
• Fix "custom-device" udev KERNEL values
• Allow firmware-updater snap to install user-daemons
• Allow loopback as a block device

NEW in snapd 2.60.3:

• Fix bug in the "private" plug attribute of the shared-memory interface that can result in a crash when upgrading from an old version of snapd.
• Fix missing integration of the /etc/apparmor.d/tunables/home.d/ apparmor to support non-standard home directories

New in snapd 2.60.2:

• Performance improvements for apparmor_parser to compensate for the slower -O expr-simplify default used. This should bring the performance back to the 2.60 level and even increase it for many use-cases.
• Bugfixes

New in snapd 2.60.1:

• Bugfixes
• Use "aes-cbc-essiv:sha256" in cryptsetup on arm 32bit devices to increase speed on devices with CAAM support
• Stop using -O no-expr-simplify in apparmor_parser to avoid potential exponential memory use. This can lead to slower policy complication in some cases but it is much safer on low memory devices.

New in snapd 2.60:

• Support for dynamic snapshot data exclusions
• Apparmor userspace is vendored inside the snapd snap
• Added a default-configure hook that exposes gadget default configuration options to snaps during first install before services are started
• Allow install from initrd to speed up the initial installation for systems that do not have a install-device hook
• New snap sign --chain flag that appends the account and account-key assertions
• Support validation-sets in the model assertion
• Support new "min-size" field in gadget.yaml
• New interface: "userns"

New in snapd 2.59.5:

• Explicitly disallow the use of ioctl + TIOCLINUX This fixes CVE-2023-1523.

New in snapd 2.59.4:

• Retry when looking for disk label on non-UEFI systems
• Fix remodel from UC20 to UC22

New in snapd 2.59.3:

• Fix quiet boot
• Ignore case for vfat paritions when validating
• Restart always enabled units

New in snapd 2.59.2:

• Notify users when a user triggered auto refresh finished

New in snapd 2.59.1:

• Add udev rules from steam-devices to steam-support interface
• Bugfixes for layout path checking, dm_crypt permissions, mount-control interface parameter checking, kernel commandline parsing, docker-support, refresh-app-awareness

New in snapd 2.59:

• Support setting extra kernel command line parameters via snap configuration and under a gadget allow-list
• Support for Full-Disk-Encryption using ICE
• Support for arbitrary home dir locations via snap configuration
• New nvidia-drivers-support interface
• Support for udisks2 snap
• Pre-download of snaps ready for refresh and automatic refresh of the snap when all apps are closed
• New microovn interface
• Support uboot with CONFIG_SYS_REDUNDAND_ENV=n
• Make "snap-preseed --reset" re-exec when needed
• Update the fwupd interface to support fully confined fwupd
• The memory,cpu,thread quota options are no longer experimental
• Support debugging snap client requests via the SNAPD_CLIENT_DEBUG_HTTP environment variable
• Support ssh listen-address via snap configuration
• Support for quotas on single services
• prepare-image now takes into account snapd versions going into the image, including in the kernel initrd, to fetch supported assertion formats