How do I get the last upgrade timestamp of a canister?

dfx canister status <canister-id> doesn’t seem to have it. Is this information even available?

Don’t know if exists but canister_status according docs does not return such an information.

IC method canister_status

Indicates various information about the canister. It contains:

  • The status of the canister. It could be one of running , stopping or stopped .
  • A SHA256 hash of the module installed on the canister. This is null if the canister is empty.
  • The controllers of the canister.
  • The memory size taken by the canister.
  • The cycle balance of the canister.

Only the controllers of the canister can request its status.