Product Change Notification(PCN) Number PCN01082021-001(mLinux)

I.     Overview

mLinux 5.3.0bis for use on the MultiTechConduitfamily of programmable gateways:

• Conduit AP Access Point
• Conduit IoT Programmable Gateway
• Conduit IP67 Base StationmLinux 5.3.0bis a major software release, built upon mLinux 5.2.7
• Available for download in Decemberhttp://www.multitech.net/developer/downloads/#mlinux
• Part Numbers Impacted

Deprecated Features:

• Ruby
• Node.js

II.     Suggested Action Plan

Customers


1. Download mLinux 5.3.0b
2. Evaluate in yourenvironment
3. Understand the release schedulebefore deploying to fleet of devices
4. Additional information
   
   • Technical inquiries: email support@multitech.com
   • Sales inquiries: email sales@multitech.com


Distributors


1. Forward this announcement to others within your organization who are actively involved in the sale or support of programmable IoT gateways
2. Notify existing customers of this change and encourage them to evaluate the new firmware withtheir custom application

III.     mLinux 5.3.0bOverview

mLinux 5.3.0b is amajorsoftware release built upon mLinux 5.2.7. The new features, feature enhancements, bug fixes, and known behaviors announced in mLinux 5.2.7are also available in mLinux 5.3.0b.




Deprecation (mLinux 5.3.0b) –Node.jsand Ruby


1. 1.mLinux 5.3.0bdoesnot include support for Node.js
• Current mLinux versions (mLinux 5.2.7 and earlier) support Node.js version 0.10.48-r1.7.0
• The requirement to upgrade to OpenSSL 1.1 in mLinux 5.3.0bmeans that the Conduit family of programmable gateways can no longer support Node.js applications due to security protocol vulnerabilities that exists within Node.js
2. mLinux 5.3.0bdoes not include support for Ruby
• Current mLinux versions (mLinux 5.2.7 and earlier) support Ruby version 2.2.5-r0.0
3. Other software packageshave been removed or revised
• Contact support@multitech.comfor details


New Features(mLinux 5.3.0b):


1. Upgrade to Yocto 2.6.4 (codename: Thud)
• Current mLinux versions (mLinux 5.2.7and earlier)are built using Yocto 2.2.4 (codename: Morty).
• Yocto 2.6.4 introduces a large numberof new software versions
• It is recommended that user applications be re-compiledand re-linked using either BitBake or the toolchain to be compatible with newer software libraries
2. Upgrade to OpenSSL 1.1.1b
   • Current mLinux versions (mLinux 5.2.7) supports OpenSSL 1.0.2k
   • mLinux 5.3.0bsupports OpenSSL 1.1.1b
3. Support for LXFP utility replaced with UXFP utility
• Utilities used to upgrade Telit radio firmware
• UXFP utility: Available on mLinux 5.3.0b and laterhttp://www.multitech.net/developer/software/mlinux/using-mlinux/using-uxfp-to-upgrade-telit-firmware/
• LXFP utility: Available on mLinux 5.2.7 and earlierhttp://www.multitech.net/developer/software/mlinux/using-mlinux/using-lxfp-to-upgrade-telit-firmware/
4. Support added for AS923 LoRa Frequency Plans
• AS923-1, AS923-2, AS923-3
5. Support added for new software packages
• Contact support@multitech.comfor details


Feature Enhancements (mLinux 5.3.0b)


1. Many current software packages have been revisedand support for new software packages hasbeen added.Contactsupport@multitech.comfor details


Known Behaviors (mLinux 5.3.0b)


1. No upgrade package install
• mLinux 5.3.0bincludes a large number of version updates
• Due to these changes, a full image install is required to move from prior mLinux versions (i.e.mLinux5.2.7) to mLinux5.3.0b
• Failure to perform a full image install in upgrading to mLinux 5.3.0bwill result in an upgrade failure


Bug Fixes (mLinux 5.3.0b)


1. Group Sudo changes
• Path for commissioned users and all users in group Sudo now includes /sbin and /usr/sbin.
• This existed in versions of mLinux prior to 5.2.7


2. Cellular Modem APN Behavior Changes
• When changing the cellular modem APN, there was a chance that the device mightnot register successfully (i.e. bad reception)
• When this occurs, the cellular modem is left with a mode setting of COPS=2 or CFUN=0. This prevents all future ppp connections
• This has been corrected. mLinux 5.3.0bchecks for CFUN=1 and COPS=0 before attempting to register the cellular modem
• mLinux 5.3.0balso sets CFUN=1 and COPS=0 before attempting to register the cellular modem

IV.      Schedule

There are multiple versions of mLinux softwareavailable for customerevaluation and final release.

• Downloadable Versions
• mLinux 5.3.0bAvailability:January 2021
• Visit http://www.multitech.net/developer/downloads/#mlinux
• Upgrade Instructions: http://www.multitech.net/developer/software/mlinux/upgrading-mlinux/



• Manufacturing
• mLinux 5.3.0b Availability: April 2021
• See Ordering Numbers Impactedfor details on when mLinux 5.3.0b will be available for different devices

V.     Upgrade Process

At any time in the upgrade process, customers can send an email to support@multitech.comor call +1(763)717-5863.

mLinux Upgrade Instructions:
http://www.multitech.net/developer/software/mlinux/upgrading-mlinux/


mLinux Changelog:
http://www.multitech.net/developer/software/mlinux/mlinux-changelog/

VI.    Part Numbers Impacted

The following ordering part numbers are impacted by these updates:

Model Name	Ordering Part Numbers
Conduit® AP Access Point
Status: Active (2)	Status: NEOL (3)
MTCAP-868-001L(2)   MTCAP-868-041L(2)   MTCAP-915-001L(2)   MTCAP-915-041L(2)   MTCAP-L4E1-868-001L(2)   MTCAP-L4E1-868-041L(2)   MTCAP-LAP3-915-001L(2)   MTCAP-LAP3-915-041L(2)   MTCAP-LNA3-915-001L(2)   MTCAP-LNA3-915-041L(2)
Conduit® IoT Programmable Gateways
Status: Active (2)	Status: NEOL (3)
MTCDT-246L-US-EU-GB (2)   MTCDT-247L-US-EU-GB (2)   MTCDT-L4E1-246L-EU-GB (2)   MTCDT-L4E1-247L-EU-GB (2)   MTCDT-L4N1-246L-US (2)   MTCDT-L4N1-247L-US (2)   MTCDT-LDC3-246L-JP (2)   MTCDT-LDC3-247L-JP (2)   MTCDT-LSB3-246L-JP (2)	MTCDT-H5-246L-US-EU-GB (3)   MTCDT-H5-247L-US-EU-GB (3)
Conduit® IoT Programmable Gateways with LoRa Accessory Cards
Status: Active (2)	Status: NEOL (3)
MTCDT-246L-868-EU-GB (2)MTCDT-246L-923-JP (2)   MTCDT-247L-868-EU-GB (2)   MTCDT-L4E1-246L-868-EU-GB (2)   MTCDT-L4N1-246L-915-US (2)   MTCDT-LAP3-246L-915-AU (2)   MTCDT-LDC3-246L-923-JP (2)   MTCDT-LSB3-246L-923-JP (2)	MTCDT-H5-247L-868-EU-GB(3)
Conduit® IP67 Base Stations
Status: Active (2)	Status: NEOL (3)
MTCDTIP-266L-868 (2)   MTCDTIP-266L-868/2 (2)   MTCDTIP-266L-868/915 (2)   MTCDTIP-266L-915 (2)   MTCDTIP-266L-915/2 (2)   MTCDTIP-266L-923-JP (2)   MTCDTIP-266L-923KR (2)   MTCDTIP-267L-868 (2)   MTCDTIP-267L-868/2 (2)   MTCDTIP-267L-915 (2)   MTCDTIP-267L-915/2 (2)   MTCDTIP-L4E1-266L-868 (2)   MTCDTIP-L4E1-267L-868 (2)   MTCDTIP-L4N1-266L-915 (2)   MTCDTIP-L4N1-266L-915/2 (2)   MTCDTIP-L4N1-267L-915 (2)   MTCDTIP-L4N1-267L-915/2 (2)   MTCDTIP-LAT3-266L-915 (2)   MTCDTIP-LDC3-266L-923-JP (2)   MTCDTIP-LSB3-266L-923-JP (2)
Conduit® IP67 Base Stationswith Geolocation
Status: Active (2)	Status: NEOL (3)
MTCDTIP-L4E1-270L-868 (2)   MTCDTIP-L4E1-275L-868 (2)   MTCDTIP-L4N1-270L-915 (2)   MTCDTIP-L4N1-275L-915 (2)   MTCDTIP-LAT3-275L-915 (2)   MTCDTIP-LDC3-270L-923-JP (2   )MTCDTIP-LDC3-275L-923-JP (2)

VII.   mLinux Software

mLinux is an open source embedded Linux distribution. It’s built using the open source Yocto Project which uses the OpenEmbedded-Core build framework. A pre-built Linux image ships with each Conduit Base Station as well as the source code and build system for creating your own custom image.

• Open source embedded Linux distributionbased on Yocto project
• Linux version (Linux 4.9), including access to over 500 resolved Common Vulnerabilities and Exposures (CVE)
• Hardware support for cellular, LoRaWAN, WiFi/BT, and GNSS/GPS
• LoRa packet forwarder
• Tool chain for creating custom images
• WAN connection via Ethernet or cellular
• Cellular PPP, DHCP client and server
• Firewall configuration via iptables
• Full root console access via SSH and serial debug port
• Language support: Python, C, C++, Javascript
• Package upgrade support: Java, Perl, Ruby, Mono C#
• opkg package manager with limited package feed
• Basic router functionality with built-in Linux
• Software configurable USB device port
• Lighttpd web server

Detailed information about getting started and using mLinux can be found at:
http://www.multitech.net/developer/software/mlinux/



VIII.   Additional Information

If you have any questions regarding this Product ChangeNotification/SoftwareRelease Notes, please contact your MultiTechsales representativeor visit the technical resources listed below:

World Headquarters –USA
+1 (763) 785-3500 | sales@multitech.com

EMEA Headquarters –UK
+(44) 118 959 7774 | sales@multitech.co.uk

MultiTech Developer Resources: www.multitech.net
An open environment where you can ask development related questions and hear back from MultiTech engineering or a member of this community.

Knowledge Base: http://www.multitech.com/kb.go
Immediate access to support information and resolutions for all MultiTech products.

MultiTech Support Portal: https://support.multitech.com/support/login.html
Create an account and submit a support case directly to our technical support team.

MultiTech Website: www.multitech.com