The version numbers mentioned on this page correspond to those released in the snap store.
You can check with the following command which version you have currently installed:
$ snap info bluez
name: bluez
summary: Bluez for Ubuntu
publisher: Canonical✓
store-url: https://snapcraft.io/bluez
contact: https://code.launchpad.net/~snappy-hwe-team/snappy-hwe-snaps/+git/bluez
license: unset
description: |
no description
commands:
- bluez.bluetoothctl
- bluez.btattach
- bluez.btmgmt
- bluez.btmon
- bluez.hciattach
- bluez.hciconfig
- bluez.hcidump
- bluez.hcitool
- bluez.meshctl
- bluez.obexctl
- bluez.sdptool
services:
bluez: simple, enabled, active
bluez.obex: simple, enabled, active
snap-id: JmzJi9kQvHUWddZ32PDJpBRXUpGRxvNS
tracking: latest/stable
refresh-date: today at 09:29 UTC
channels:
latest/stable: 5.47-4 2020-04-06 (204) 4MB -
latest/candidate: 5.48-1 2020-07-08 (229) 4MB -
latest/beta: 5.48-1 2020-07-03 (229) 4MB -
latest/edge: 5.48-2-dev 2020-07-03 (234) 4MB -
20/stable: –
20/candidate: –
20/beta: 5.53-1 2020-06-25 (217) 5MB -
20/edge: 5.53-1-dev 2020-06-25 (214) 5MB -
installed: 5.47-4 (204) 4MB -
The detailed changelog for each version can be consulted in the sources for each track:
For track 20, here
For track latest (note again this is not actually the more modern bluez), here