News & Events

  Welcome to HP Developers' News. Here you will find the combined news of all of HP Developers' products.

 

News and Events

25 Oct 2019
Link for Device SDK and Simulator Version 1.3.1 Now Available

Link for Device SDK and Simulator Version 1.3.1 Now Available

HP has identified potential security vulnerabilities with the Link for Device Platform. The potential vulnerabilities could be used to perform remote information disclosure while scanning and printing in some modes (ScanToMe, PrintFromStorage).

To help address this issue, HP is providing an SDK hotfix (1.3.1) and a firmware update (FutureSmart 4.9.0.1). In this new implementation, scan and print data is more securely transferred to and from the app’s own sandboxed data directory. READ_EXTERNAL_STORAGE and WRITE_EXTERNAL_STORAGE permissions, which are sometimes exploitable through this vulnerability, are no longer necessary.

Note: Existing apps will continue to function on the updated firmware without changes, but will remain susceptible to this security vulnerability.

In order to help mitigate this vulnerability, please update to SDK version 1.3.1 and rebuild and republish your app, specifying a minimum Platform Version of 19.4, at your earliest convenience. Your customers will need to upgrade firmware to FutureSmart 4.9.0.1 or later. In addition, unless your app requires them for some other purpose, please remove READ_EXTERNAL_STORAGE and WRITE_EXTERNAL_STORAGE permissions.

Download the SDK and Simulator from the Download page now.

Note: FutureSmart bundle 4.9.0.1 will soon be available on hp.com. In the meantime you can download it from the Download page.

Sincerely,

The HP JetAdvantage Link team

16 Oct 2019
Oreo is coming! Are you ready?

Oreo is coming! Are you ready?

The JetAdvantage Link platform development team has been working hard over many months to update the core of our device platform to conform to API version 26 (commonly known as Oreo, or 8.0).

Having concluded internal testing and a limited-release beta (Beta1), we are now ready to share our work with the entire app developer community for your evaluation and feedback (Beta2) and most importantly to give you time to adapt your apps if necessary prior to its official release.

Here are some tips for making sure your apps are “Oreo ready”:

Download the Oreo Beta2 firmware from the Download page now and take it for a test drive with your app. Please follow these steps:

  1. Uninstall all apps and remove the printer from HP Command Center (if the printer had been previously added)
  2. Perform a format disk operation
  3. Install the Oreo Beta2 firmware from a USB thumb drive
  4. Configure the printer’s web proxy (if necessary)
  5. Register the printer with HP Web Services (if necessary)
  6. Enable LDB mode
  7. Install your app using the HPKTool
  8. Push your app’s App Attestation debug credentials using the HPKTool (if necessary)
  9. Run your app, noting all anomalies encountered

For any anomalies found, first check your usage of the APIs. In our testing so far, most of the anomalies were actually due to the app’s incorrect use of the APIs or reliance on deprecated APIs.

If a defect in the Link Platform is proven or even strongly suspected, please report it through the Link for Device SDK support forum. Indicate in your post that you are using the Oreo Beta2 firmware image.

When your Oreo Beta2 testing has concluded and any app adjustments have been made, please:

  1. Perform a format disk operation
  2. Install the latest Public Release Firmware Image from a USB thumb drive
  3. Configure the printer’s web proxy (if necessary)
  4. Register the printer with HP Web Services (if necessary)
  5. Delete any copies of the Oreo Beta2 firmware you may have downloaded

Thank you in advance for participating in the Oreo Beta2.

-- The JetAdvantage Link Team

 

8 Aug 2019
Link for Device Simulator Version 1.3.0 Now Available

 

HP is pleased to announce the release of version 1.3.0 of the Link for Device Simulator.

Please note: This simulator is intended for use with version 1.3.0 of the Link for Device SDK.

Download the new Simulator from the Downloads page.

22 Jul 2019
Lighthouse Apps for JetAdvantage Link now Available

 

HP is pleased to announce the release of Lighthouse Apps for JetAdvantage Link

Lighthouse apps are:

  • An open source collection of HP authored Link apps​
  • Scan To… Apps
    • Scan to Email
    • Scan to FTP
    • Scan to SMB (Network Folder)
  • Cloud Storage Apps
    • HP for Box
    • HP for Dropbox
    • HP for Google Drive
    • HP for OneDrive
    • HP for OneDrive Business
    • HP for SharePoint

Lighthouse apps provide:

  • Proof that the Link platform supports sophisticated and valuable apps
  • Validation that the Link APIs are simple to use and well documented​
  • Componentized sample code to leverage for your own Link App development purposes - use the parts you need
  • Demonstration of best practices (security, usability, etc.)
  • Fully functional app source code that can be customized specifically to create derivative works
  • Inspiration to accelerate innovation and App development ​by others

What clever and unique solutions can you build on top of these basic building blocks?​

For more information and to get access to the code, see the new Lighthouse Apps page.

11 Jul 2019
Link for Device SDK Version 1.3.0 Now Available

HP is pleased to announce the release of version 1.3.0 of the Link for Device SDK.

 

In August of last year HP announced the Developers Release of JetAdvantage Link for Device SDK on the Developer’s Portal, providing developers powerful and simpler ways to create print and scan integrations for end-users. We are excited to add even more capabilities on our platform in our latest release, JetAdvantage Link for Device SDK version 1.3.0 (associated with the release of FutureSmart Bundle 4.8.0.1 device firmware).

 

Link for Device SDK (version 1.3.0):

Please note: A device firmware upgrade to FutureSmart Bundle 4.8.0.1 is required to use this SDK. An announcement will be made when the firmware is available on hp.com. In the meantime, the firmware has been made temporarily available for download from the SDK Download page.

Download the new SDK from the Download page.

 
Major new features of this version include:

  • Official Support of recently introduced Devices (some require a 2GB DIMM accessory). See the updated Compatible Devices page for details.
  • (App) Attestation API and the HP Token Proxy – Eliminate OAuth Client Secrets from your apps by managing your Client Credentials in HP’s cloud and using HP’s Token Proxy (See how here)
  • (USB) Accessory API – Apps can now read from and write to USB (HID Class) Accessories, including authentication card readers (See AccessoryOverview.pdf)
  • Copy API – Create, Store, Enumerate, Release, and Delete Stored Copy Jobs (See CopySampleOverview.pdf)
  • Mass Storage API – Listen for Mass Storage events and read/write to Mass Storage (See MassStorageOverview.pdf)

 

New/Enhanced Sample Apps:

  • New AttestationSample – Demonstrates use of the HP Token Proxy
  • New AccessorySample – Demonstrates basic USB accessory usage
  • New AccessoryAgentSample – Demonstrates use of a USB card reader accessory for Authentication
  • New CopySample – Demonstrates how to perform Copy and Stored Copy functions
  • New EmailSample – Demonstrates how to send email using either the printer’s SMTP or custom SMTP settings
  • New LauncherSample – Demonstrates how to create a “Kiosk Mode” (a.k.a. Launcher) App
  • New MassStorageSample – Demonstrates how to listen for Mass Storage events and read/write to Mass Storage
  • New MultiLanguageSample – Demonstrates sub-activity buttons and multilanguage button labels
  • Enhanced Scan and Print Samples – Now include job status
  • Enhanced Config Sample – Now includes a default config in the HPK

 
Other notable changes in this release include:

  • Platform Versioning

To enable a simple app compatibility check before installation, we have introduced a platform versioning scheme into this SDK and firmware release, of the form {Android API Level}.{Link API Level}. In this first release, the Platform Version is 19.3. Starting on 7/19/2019, all apps uploaded to the App Center will be required to include a minimum platform version declaration in the HPK (See the new HPKTool in this SDK for details).
 

Coming soon:

 

  • The SDK 1.3 device simulator will be available soon.

 
Restrictions:

  • [MASSSTORAGE] Size of getFreeSpace() and getTotalSpace() is not correct.
19 Apr 2019
TLS 1.0 / TLS 1.1 Disabled by default in FutureSmart bundle 4.7.2 and later

The FutureSmart 4.7.2 firmware release changed the default availability of TLS protocol versions. The updated security profile for FutureSmart version 4.7.2 defaults to:

  • TLS 1.2 – Enabled
  • TLS 1.0 & TLS 1.1 – Disabled

 

The new TLS protocol defaults are applied in the following circumstances:

 

Devices purchased with FutureSmart bundle 4.7.3 and later

  • Use the new TLS defaults (TLS 1.0 / 1.1 disabled)

 

Devices updated to FutureSmart bundle 4.7.2  or later from FutureSmart 3 bundles or FutureSmart 4 bundles before version 4.7.2

  • TLS settings are not updated to the new defaults and maintain their current setting.

 

Performing the following device resets on FutureSmart 4.7.2 or later devices update the TLS  settings to the new defaults, overwriting any previously configured setting

  • Format Disk
  • Partial Clean
  • Cold Reset

Important Note: HP and 3rd party solution software may have a TLS 1.0 dependency requiring TLS 1.0 to be enabled / re-enabled for installation or to function properly after installation.   Details on how to do that can be found in the document here.

Important Note: FutureSmart bundle 4.7.2 is an interim firmware release only available from HP Support.

 

The following devices will ship with FutureSmart bundle 4.7.3 which have the new TLS defaults.

  • HP LaserJet Managed MFP E72525/ 30/35
  • HP Color LaserJet Managed E77822/25/30
  • HP LaserJet Managed MFP E82540/50/60
  • HP Color LaserJet Managed MFP E87640/50/60
13 Feb 2019
FutureSmart 4.7.1 Released with Release Notes for Solution Developers

FutureSmart 4.7.1 has been released with a number of changes that developers will be interested in.    As always, you can download the latest firmware from here.

Do you want to know what changes are in this revision?   The standard release notes that accompany FutureSmart firmware releases are targeted at end-customers, which means they are not as helpful as they could be to JetAdvantage solution developers.   To fix this, we're starting to create release notes specifically for developers.  You'll find those on the FutureSmart Firmware Solution Developer Release Notes page.

11 Dec 2018
Link for Device SDK Version 1.1.0 Now Available

HP is pleased to announce the release of version 1.1.0 of the Link for Device SDK.

 

In August of this year HP announced the Developers Release of JetAdvantage Link SDKs on the Developer’s Portal, providing developers powerful and simpler ways to create print and scan integrations for end-users. We are excited to add more capabilities on our platform in our latest release, JetAdvantage Link for Device SDK version 1.1.0 (associated with the release of FutureSmart Bundle 4.7 device firmware).

 

Link for Device SDK (version 1.1.0):

Please note: A device firmware upgrade to FutureSmart Bundle 4.7 is required to use this SDK. Find and download the firmware here.

Download the new SDK from the Download page.

 

Major new features of this version include:

  • Official Support of several FutureSmart 4 capable A4 Devices with a 2GB DIMM accessory. See the updated Compatible Devices page for details.
  • Authentication API – Develop custom MFP authentication agents (See AuthenticationAgentOverview.pdf)
  • Link Home Screen – Replace the device’s home screen with your own (See LinkHomeScreenOverview.pdf), enabling simple Kiosk applications
  • Print Port Blocking – Control all printing activity by disabling printing from all external sources (See DeviceInfoSampleOverview.pdf)
  • Launcher API – Launch another app with actions (com.hp.jetadvantage.link.api.launcher)
  • Mass Storage API – Read/Write files from USB Mass Storage Devices and ScanTo/PrintFrom USB Mass Storage devices (See MassstorageServiceOverview.pdf)
  • Additional Sample Apps:
    • Alarm Manager – Demonstrates how to use the Alarm Manager to perform scheduled background tasks
    • Google Sign in – Demonstrates how to perform Google Sign in (without Chrome/Google Play Services)

 

Other notable changes include:

  • An issue with stapler options has been fixed (com.hp.jetadvantage.link.api.printer)

 

Restrictions:

  • Authentication using card readers (USB Devices) is not yet supported
  • USB MASS storage events are not yet supported
  • Launcher API cannot be used by Home Screen apps at this time
  • [PRINT] TIFF/TXT should be printed with document format as “pdf”
  • [PRINT] “STREAM” only allows “prn” file type
11 Dec 2018
App Gallery disabled in FutureSmart Bundle 4.7

The App Gallery has been disabled in FutureSmart Bundle 4.7

 

The on-device App Gallery has been disabled in FutureSmart Bundle 4.7. If usage is attempted, a message stating “This app has been disabled” will be displayed. Please do not report this as an issue to the SDK support forum.

App Gallery will return in a future FutureSmart release as a tool more tailored for use by resellers (not end users). Among the changes being considered, a verified reseller login may be required to use the App Gallery.

In the coming months, watch for more announcements related to reseller-focused app deployment tools and capabilities. This will include the redesigned App Gallery as well as a new web-based tool to enable remote deployment to fleets of Printers/MFPs (currently in Beta).

 

Note: The HPK tool and LDB are still be available for app testing purposes.

1 Nov 2018
October Tech Talk: Slides and Recording

October’s Tech Talk was well attended!  Topics were:

  • FutureSmart Release Plans and Performance Improvements
  • SDK and OPS Extensibility
  • JetAdvantage Link Update
  • Developer Support

If you want to refresh your memory on what was covered (or if you missed it), you can find the slides presented here and a link to the recording here.   Watch for upcoming “Dev Talks” that will provide more detailed technical content.