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docs: update parallel instances with default-on details - #646
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ZeyadYasser
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Oct 21, 2026
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🔵 Needs a closer look
Unresolved metadata and wording corrections remain in the reviewed documentation.
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What changed in this PR
Updates snapd 2.79 documentation to explain that parallel installs are enabled by default, including interface limitations and shared-resource cautions.
Changes:
- Documents default-on parallel installs.
- Adds unsupported-interface and app-property guidance.
- Adds shared-resource warnings and bypass guidance.
| File | Summary |
|---|---|
docs/reference/interfaces/xilinx-dma-interface.md |
Documents unsupported parallel plugs |
docs/reference/interfaces/x11-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/wayland-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/upower-observe-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/unity8-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/unity8-contacts-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/unity8-calendar-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/udisks2-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/ubuntu-download-manager-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/timeserver-control-interface.md |
Adds shared-resource caution |
docs/reference/interfaces/time-control-interface.md |
Adds shared-resource caution |
docs/reference/interfaces/thumbnailer-service-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/storage-framework-service-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/steam-support-interface.md |
Documents unsupported parallel plugs |
docs/reference/interfaces/shared-memory-interface.md |
Documents parallel-instance restrictions |
docs/reference/interfaces/ros-snapd-support-interface.md |
Documents unsupported parallel plugs |
docs/reference/interfaces/raw-volume-interface.md |
Adds shared-resource caution |
docs/reference/interfaces/pulseaudio-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/power-control-interface.md |
Adds shared-resource caution |
docs/reference/interfaces/posix-mq-interface.md |
Documents parallel-instance restrictions |
docs/reference/interfaces/pkcs11-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/pipewire-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/physical-memory-control-interface.md |
Documents unsupported parallel plugs |
docs/reference/interfaces/openvswitch-support-interface.md |
Documents unsupported parallel plugs |
docs/reference/interfaces/opengles-driver-libs-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/opengl-driver-libs-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/online-accounts-service-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/ofono-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/nvme-control-interface.md |
Adds shared-resource caution |
docs/reference/interfaces/nvidia-drivers-support-interface.md |
Documents unsupported parallel plugs |
docs/reference/interfaces/nomad-support-interface.md |
Documents unsupported parallel plugs |
docs/reference/interfaces/network-setup-control-interface.md |
Adds shared-resource caution |
docs/reference/interfaces/network-manager-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/network-control-interface.md |
Adds shared-resource caution |
docs/reference/interfaces/network-bind-interface.md |
Adds port-conflict caution |
docs/reference/interfaces/multipass-support-interface.md |
Documents unsupported parallel plugs |
docs/reference/interfaces/mount-control-interface.md |
Adds shared-resource caution |
docs/reference/interfaces/modem-manager-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/mir-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/microstack-support-interface.md |
Documents unsupported parallel plugs |
docs/reference/interfaces/microceph-support-interface.md |
Documents unsupported parallel plugs |
docs/reference/interfaces/media-hub-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/maliit-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/lxd-support-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/location-observe-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/location-control-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/kubernetes-support-interface.md |
Documents unsupported parallel plugs |
docs/reference/interfaces/kernel-module-load-interface.md |
Adds shared-resource caution |
docs/reference/interfaces/kernel-module-control-interface.md |
Adds shared-resource caution |
docs/reference/interfaces/kernel-firmware-control-interface.md |
Adds shared-resource caution |
docs/reference/interfaces/iscsi-initiator-interface.md |
Adds shared-resource caution |
docs/reference/interfaces/hugepages-control-interface.md |
Adds shared-resource caution |
docs/reference/interfaces/greengrass-support-interface.md |
Documents unsupported parallel plugs |
docs/reference/interfaces/gpio-control-interface.md |
Adds shared-resource caution |
docs/reference/interfaces/gbm-driver-libs-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/fwupd-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/fpga-interface.md |
Documents unsupported parallel plugs |
docs/reference/interfaces/firmware-updater-support-interface.md |
Documents unsupported parallel plugs |
docs/reference/interfaces/firewall-control-interface.md |
Adds shared-resource caution |
docs/reference/interfaces/egl-driver-libs-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/dsp-interface.md |
Documents unsupported parallel plugs |
docs/reference/interfaces/docker-support-interface.md |
Documents unsupported parallel plugs |
docs/reference/interfaces/docker-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/dm-multipath-interface.md |
Adds shared-resource caution |
docs/reference/interfaces/dm-crypt-interface.md |
Documents unsupported parallel plugs |
docs/reference/interfaces/desktop-interface.md |
Documents desktop parallel restrictions |
docs/reference/interfaces/dbus-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/cuda-driver-libs-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/cpu-control-interface.md |
Adds shared-resource caution |
docs/reference/interfaces/core-support-interface.md |
Documents unsupported parallel instances |
docs/reference/interfaces/classic-support-interface.md |
Documents unsupported parallel plugs |
docs/reference/interfaces/checkbox-support-interface.md |
Documents unsupported parallel plugs |
docs/reference/interfaces/bluez-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/block-devices-interface.md |
Adds shared-resource caution |
docs/reference/interfaces/avahi-observe-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/avahi-control-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/auditd-support-interface.md |
Documents unsupported parallel plugs |
docs/reference/interfaces/audio-playback-interface.md |
Documents unsupported parallel slots |
docs/reference/interfaces/adb-support-interface.md |
Documents unsupported parallel plugs |
docs/reference/interfaces/acrn-support-interface.md |
Documents unsupported parallel plugs |
docs/reference/development/experimental-features.md |
Marks parallel installs default-on |
docs/explanation/how-snaps-work/parallel-installs.md |
Expands parallel-install behavior and restrictions |
Review effort: Lite
raimundo-henriques
approved these changes
Oct 22, 2026
raimundo-henriques
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raimundo-henriques
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Thank you! Left some comments with nitpicks.
maykathm
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Pull request checklist
docs/, I added or updated the metadata description at the top of the page.If needed, add this frontmatter before the page's reference label or heading: