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