v0.16.0

### BREAKING

- Old ACL syntax is no longer supported ("users" & "ports" -> "src" & "dst"). Please check [the new syntax](https://tailscale.com/kb/1018/acls/).

### Changes

- **Drop** armhf (32-bit ARM) support. [#609](https://github.com/juanfont/headscale/pull/609)
- Headscale fails to serve if the ACL policy file cannot be parsed [#537](https://github.com/juanfont/headscale/pull/537)
- Fix labels cardinality error when registering unknown pre-auth key [#519](https://github.com/juanfont/headscale/pull/519)
- Fix send on closed channel crash in polling [#542](https://github.com/juanfont/headscale/pull/542)
- Fixed spurious calls to setLastStateChangeToNow from ephemeral nodes [#566](https://github.com/juanfont/headscale/pull/566)
- Add command for moving nodes between namespaces [#362](https://github.com/juanfont/headscale/issues/362)
- Added more configuration parameters for OpenID Connect (scopes, free-form paramters, domain and user allowlist)
- Add command to set tags on a node [#525](https://github.com/juanfont/headscale/issues/525)
- Add command to view tags of nodes [#356](https://github.com/juanfont/headscale/issues/356)
- Add --all (-a) flag to enable routes command [#360](https://github.com/juanfont/headscale/issues/360)
- Fix issue where nodes was not updated across namespaces [#560](https://github.com/juanfont/headscale/pull/560)
- Add the ability to rename a nodes name [#560](https://github.com/juanfont/headscale/pull/560)
  - Node DNS names are now unique, a random suffix will be added when a node joins
  - This change contains database changes, remember to **backup** your database before upgrading
- Add option to enable/disable logtail (Tailscale's logging infrastructure) [#596](https://github.com/juanfont/headscale/pull/596)
  - This change disables the logs by default
- Use [Prometheus]'s duration parser, supporting days (`d`), weeks (`w`) and years (`y`) [#598](https://github.com/juanfont/headscale/pull/598)
- Add support for reloading ACLs with SIGHUP [#601](https://github.com/juanfont/headscale/pull/601)
- Use new ACL syntax [#618](https://github.com/juanfont/headscale/pull/618)
- Add -c option to specify config file from command line [#285](https://github.com/juanfont/headscale/issues/285) [#612](https://github.com/juanfont/headscale/pull/601)
- Add configuration option to allow Tailscale clients to use a random WireGuard port. [kb/1181/firewalls](https://tailscale.com/kb/1181/firewalls) [#624](https://github.com/juanfont/headscale/pull/624)
- Improve obtuse UX regarding missing configuration (`ephemeral_node_inactivity_timeout` not set) [#639](https://github.com/juanfont/headscale/pull/639)
- Fix nodes being shown as 'offline' in `tailscale status` [#648](https://github.com/juanfont/headscale/pull/648)
- Improve shutdown behaviour [#651](https://github.com/juanfont/headscale/pull/651)
- Drop Gin as web framework in Headscale [648](https://github.com/juanfont/headscale/pull/648) [677](https://github.com/juanfont/headscale/pull/677)
- Make tailnet node updates check interval configurable [#675](https://github.com/juanfont/headscale/pull/675)
- Fix regression with HTTP API [#684](https://github.com/juanfont/headscale/pull/684)
- nodes ls now print both Hostname and Name(Issue [#647](https://github.com/juanfont/headscale/issues/647) PR [#687](https://github.com/juanfont/headscale/pull/687))