How to do delta (differential) updates with Mender

Using binary deltas for applying updates is a more efficient mechanism for updating software over-the-air (OTA) which enables faster downloads and bandwidth cost saving for metered networks. When using cellular (e.g. 4G/LTE) or other bandwidth constrained networks, the impact is even greater. With the recently announced commercial editions, Mender offers the ability to generate and only deploy the binary difference (delta) between the software version already on the devices and the new version with robust and atomic rollback approach.

To utilize binary delta updates with Mender, there are some requirements:

  • Mender board integration is only provided for Yocto Project. If you are interested in support for other platforms, please email
  • Device needs to be configured to run with the root filesystem in “read-only” mode.
  • Mender client version 2.0.0 or newer integrated as part of the disk image.
  • Mender Artifact version 3.1.0 installed on your development machine.
  • Mender-binary-delta and mender-binary-delta-generator which contain the binaries needed to generate and apply deltas
  • A device using SD/eMMC as storage medium. Raw NAND flash is not yet supported.

We provide binaries for ARM and Intel x86_64 architectures and also binaries for other platform architectures on a need basis.

See a tutorial on how to do delta updates with Raspberry Pi 3. Learn more in detail about Mender Enterprise and its key features here.

Recent articles

Transforming business: It’s “All On” for the future of IoT | Mender

Transforming business: It’s “All On” for the future of IoT

Insights from CES 2024 Billed as “the most powerful tech event in the world,” CES 2024 brought together more than 135 thousand attendees and four thousand
Full speed ahead: The software-defined vehicle of the future | Mender

Full speed ahead: The software-defined vehicle of the future

Distinguished panelists discuss infotainment and entertainment services for the software-defined vehicle. Automotive OEMs must innovate to move towards a s
The Future of the Embedded Linux Ecosystem | Mender

The Future of the Embedded Linux Ecosystem

Insights from the Linux Plumbers Conference 2023 The global Linux market is forecasted to reach $15.64 trillion by 2027, and commands usage among nearly ha
View more articles

Learn more about Mender

Explore our Resource Center to discover more about how Mender empowers both you and your customers with secure and reliable over-the-air updates for IoT devices.