official

  • These builds are available for Murena smartphones.
  • They are built from a released and tested community branch.
  • They go through additional and longer testing cycles.
  • They are built on the /e/OS infrastructure and signed with /e/OS official keys.
  • They have a maintainer and receive regular OTA updates.
  • Users can also download the files and install them manually.
  • Device flash packages use the IMG-e- prefix and include images plus a flashing script.
  • Release frequency: monthly.
  • Previously called stable builds.

example:

IMG-e-4.2-a15-20260816-official-FP4.zip

naming format:

IMG-e-<version>-<android-version>-<yyyymmdd>-official-<device>.zip

community

  • These builds are built on the /e/OS infrastructure and signed with /e/OS development keys.
  • They include the latest /e/OS development code for the device.
  • They are released after testing, but may still contain non-critical bugs.
  • They receive regular OTA updates.
  • They are available for download on /e/OS websites.
  • Release frequency: monthly.
  • Previously called dev builds.

example:

IMG-e-4.2-a15-20260816-community-FP4.zip

naming format:

IMG-e-<version>-<android-version>-<yyyymmdd>-community-<device>.zip

test

  • These builds are built on the /e/OS infrastructure and signed with Android test keys.
  • They use the default Android test keys and enable full ADB access at boot.
  • They are intended for developers who need to test and debug applications or platform changes.
  • They do not receive OTA updates.
  • They are not publicly available on /e/OS websites.
  • Release frequency: depends on development and testing requirements.

examples:

  • IMG-e-4.2-a15-20260816-test-FP4.zip
  • IMG-e-4.2-a15-20260816-test-FP3.zip

naming format:

IMG-e-<version>-<android-version>-<yyyymmdd>-test-<device>.zip

UNOFFICIAL

  • These builds are made by external contributors.
  • They are not supported by /e/OS.
  • They are made from /e/OS source code without additional source modifications.
  • They may not have a maintainer.
  • They do not receive OTA updates.
  • They are not published by Murena and are tagged as UNOFFICIAL.
  • Release frequency: defined by each external contributor.
  • Install these builds at your own risk.

example:

e-4.2-a15-20260816-UNOFFICIAL-FP3.zip

naming format:

e-<version>-<android-version>-<yyyymmdd>-UNOFFICIAL-<device>.zip

custom

  • These builds are made by /e/OS or external users.
  • They may include changes to /e/OS sources or device-specific code.
  • They are not supported by /e/OS.
  • They are not publicly available on /e/OS websites.
  • Release frequency: depends on the client or ROM builder.
  • Install these builds at your own risk.

naming format:

The format is defined by the custom ROM builder.