Release Notes for ZentriOS-W-3.4
A new update sub-command for the dms command simplifies performing combinations of dms and ota operations.
The DMS can now issue commands via secure websocket to a device. This is enabled by the dms.cmd.enabled variable. With this feature, Zentri customers can have centralized, complete control over their fleets of devices in the field, via a DMS control panel.
A new --long_url option for the http_post allows specifying an arbitrarily long URL.
A new network.dns.timeout variable allows specifying the maximum duration for DNS resolution.
A new websocket protocol is available with the /cmdstream route: ws://<host>/cmdstream. See Networking and Security, Websocket Command Stream.
The load command now takes the -v option before the filename, consistent with other commands.
A new softap.captive_portal_enabled variable enables redirect to the root HTTP server webpage.
ZentriOS TLS 1.2 support now incorporates the 'Signature Algorithms Extension'.
Updating from WiConnect
See Updating your WiConnect device to update a device running WiConnect version 2.4 or earlier.
For a version history, see ZentriOS Editions and Versions.
Known Issues (v3.4.0)
Last Updated : August, 2017
All known issues in v3.3 and earlier versions have been fixed.
| Description | Solution or Workaround |
|---|---|
| The Captive Portal feature does not redirect correctly when connecting to the Soft AP from a Windows 10 system. | Type in the required URL after joining the Soft AP network. For example, when using the setup web feature, type the URL setup.com |
Changelog (v3.4.0)
Last Updated : August, 2017
Fixes and Improvements
| Topic | Description |
|---|---|
| HTTP server | Fixed a hardfault when http.server.api_enabled = 0 |
| HTTP stream | With an HTTP stream, the command http_read_status returns the most recent response code, regardless of whether the status has already been read. |
| Throughput | Fixed an issue of throughput degradation after updating from ZentriOS-3.2 to ZentriOS-3.3 |
| Flash | Added wear levelling to ensure that extended and bulk flash sectors are evenly used, prolonging flash life. |
| TLS | ZentriOS now skips TLS client certificate exchange if the server does not require client certificates |
| Fixed an issue with calculating remaining RX data with stream_poll on TLS streams, | |
| Fixed a memory link for TLS client using client certificates | |
| Web setup | The web setup setup.web.idle_timeout is now disabled only when the root index of the webapp is requested |
| UART | Fixed a problem where characters were lost when the device was rebooting |
| Watchdog Faults | Fixed a problem where watchdog faults were not printed on startup |
| HTTPS upload | Fixed a problem where http_upload failed with HTTPS |
| stream_write | The stream_write command now always consumes the specified <size> of data, even if the command fails. This prevents buffer overflows. |
Commands Changed
| Change | Description |
|---|---|
| dms update | dms sub-command argument update simplifies performing combinations of dms and ota operations. |
| http_download | The command now accepts file type in hex format as well as decimal format. |
| http_host | --long_url option allows specifying an arbitrarily long URL. |
| load | Now takes the -v option before the filename, consistent with other commands. |
Variables Added
| Change | Description |
|---|---|
| dms.cmd.enabled | Enable issuing commands from DMS to device via secure websocket |
| network.dns.timeout | Specify maximum duration for DNS resolution |
| softap.captive_portal_enabled | Enable redirect to root HTTP server webpage |
Known Issues (v3.4.1)
All known issues in v3.4.0 and earlier versions have been fixed except the following:
| Description | Solution or Workaround |
|---|---|
| The Captive Portal feature does not redirect correctly when connecting to the Soft AP from a Windows 10 system. | Type in the required URL after joining the Soft AP network. For example, when using the setup web feature, type the URL setup.com |
Changelog (v3.4.1)
Last Updated : August, 2017
Fixes and Improvements
| Topic | Description |
|---|---|
| UART | Fixed an issue which stopped UART communication when system.print_level was set below 3. |
| system.activity.gpio | Fixed an issue that resulted in system.activity.gpio settings eventually failing when set via the gpio_config_init.csv file. See GPIO Configuration. |
| DMS token | Fixed an issue resulting in an invalid token error when a device attempted to connect to the DMS after an OTA from a version of ZentriOS prior to 3.4. Note that in ZentriOS 3.4.0 this problem could be fixed by issuing a further ota -f command. |