This document provides a monthly listing of GKI release builds for android15-6.6. The links in the artifacts column display the list of kernel or debug kernel artifacts in the respective release. To find a specific file, see the list of artifact definitions.
16 KB builds are available on-demand at this time for these builds:- android14-5.15
- android14-6.1
- android15-6.6
- android16-6.12
If you have questions about these builds, file a bug in the Issue Tracker.
Stages of release branches
Certified builds support partner-requested respins for up to a maximum of six months. After six months, a partner can request a respin to receive the security patches mentioned in the Android Security Bulletin (ASB).
When the LTS requirements cause the branch to be non-compliant, the branch is deprecated. Respin requests for deprecated branches aren't accepted.
For additional detail, reference Emergency respin process.
Boot image OS version and SPL
For the Android 15 GKI boot-*.img, the os_version
field, that holds the OS version and SPL in the bootimg.h header file, is set to zero.
See android15-6.6 to get the Tag and SPL information for each GKI release.
When incorporating a GKI prebuilt boot.img, device partners can put the information into the AVB footer
by setting BOOT_OS_VERSION
and BOOT_SECURITY_PATCH, shown as follows:
BOOT_OS_VERSION := 15
BOOT_SECURITY_PATCH := 2024-08-05
The build appends the following AVB properties
into a prebuilt boot.img:
Prop: com.android.build.boot.os_version -> '15'
Prop: com.android.build.boot.security_patch -> '2024-08-05'
Artifact file description
The following tables describe the files contained in the artifacts. See the description of each file to download the file you need.
Kernel artifacts
| File name | Description |
|---|---|
Image |
The kernel image binary. |
Image.gz |
The kernel image binary compressed by gzip. |
Image.lz4 |
The kernel image binary compressed by lz4. |
boot.img |
The boot image with uncompressed kernel. |
boot-gz.img |
The boot image with gzip compressed kernel. |
boot-lz4.img |
The boot image with lz4 compressed kernel. |
signed/certified-boot-img-$BID.tar.gz |
Contains all certified boot images (only on certified builds). |
system_dlkm_staging_archive.tar.gz |
All signed GKI modules for building the system_dlkm partition. |
System.map |
A lookup table between symbols and their addresses in memory. Needed for mixed builds. |
manifest_$BID.xml |
The pinned repo manifest file which can sync the source code for building the kernel. |
modules.builtin |
A list of all modules built into the kernel, used by modprobe.
Needed for mixed builds. |
modules.builtin.modinfo |
Contains the modinfo (refer to `modinfo(8)`) of the entries in
modules.builtin. Needed for mixed builds. |
vmlinux |
A statically-linked executable containing the Linux kernel and useful for debugging. Should be provided for mixed builds. |
vmlinux.symvers |
A dump of the symbols included in the vmlinux. Needed for
mixed builds. |
Android15-6.6 launch releases
- Parent branch:
android15-6.6(history)
The following branches are eligible for respin, including
- respin requested by partners, or
- respin receives the security patches mentioned in the Android Security Bulletin (ASB).
August 2025 releases
- Branch:
android15-6.6-2025-08(history) - Version:
6.6.98 - No longer respin eligible from 2026-03-01, unless for security patches cited in the Android Security Bulletin (ASB) upon explicit partner request.
- Deprecated from 2026-09-01. No respins allowed after this date.
Release build
Debug build
July 2025 releases
- Branch:
android15-6.6-2025-07(history) - Version:
6.6.92 - No longer respin eligible from 2026-02-01, unless for security patches cited in the Android Security Bulletin (ASB) upon explicit partner request.
- Deprecated from 2026-08-01. No respins allowed after this date.
Release build
Debug build
June 2025 releases
- Branch:
android15-6.6-2025-06(history) - Version:
6.6.89 - No longer respin eligible from 2026-01-01, unless for security patches cited in the Android Security Bulletin (ASB) upon explicit partner request.
- Deprecated from 2026-07-01. No respins allowed after this date.
Release build
Debug build
May 2025 releases
- Branch:
android15-6.6-2025-05(history) - Version:
6.6.87 - No longer respin eligible from 2025-12-01, unless for security patches cited in the Android Security Bulletin (ASB) upon explicit partner request.
- Deprecated from 2026-06-01. No respins allowed after this date.
Release build
| Release date | Tag / Source / Changes / Licenses |
Kernel artifacts | Certified GKI |
|---|---|---|---|
| 2025-05-09 |
android15-6.6-2025-05_r1SHA-1: b2cebbc8442459530cec
Diff: prev_r1..r1
LICENSES
|
The build is cancelled. Sign in to see details. | |
| 2025-05-12 |
android15-6.6-2025-05_r2SHA-1: 34ab3dd83c568f6fd4f2
Diff: r1..r2
LICENSES
|
The build is cancelled. Sign in to see details. | |
| 2025-05-16 |
android15-6.6-2025-05_r3SHA-1: 929ee12a0c1d2f25b93d
Diff: r2..r3
LICENSES
|
The build is cancelled. Sign in to see details. | |
| 2025-05-21 |
android15-6.6-2025-05_r4SHA-1: 431f91a19263ee926e41
Diff: r3..r4
LICENSES
|
The build is cancelled. Sign in to see details. | |
| 2025-05-22 |
android15-6.6-2025-05_r5SHA-1: a7fd09ec3403678e97af
Diff: r4..r5
LICENSES
|
The build is cancelled. Sign in to see details. | |
| 2025-05-23 |
android15-6.6-2025-05_r6SHA-1: a7fd09ec3403678e97af
Diff: r5..r6
LICENSES
|
The build is cancelled. Sign in to see details. | |
| 2025-05-29 |
android15-6.6-2025-05_r7SHA-1: ab440fc01659eb58c678
Diff: r6..r7
LICENSES
|
The build is cancelled. Sign in to see details. | |
| 2025-05-29 |
android15-6.6-2025-05_r8SHA-1: 3375ca4f3721e056bec3
Diff: r7..r8
LICENSES
|
The build is cancelled. Sign in to see details. | |
| 2025-05-31 |
android15-6.6-2025-05_r9SHA-1: 7b1f522c80c811c59e05
Diff: r8..r9
LICENSES
|
kernel |
boot-6.6.img
boot-6.6-gz.img
boot-6.6-lz4.img |
| 2025-06-18 |
android15-6.6-2025-05_r10SHA-1: 12156ff4de9596a5b31f
Diff: r9..r10
LICENSES
|
kernel |
boot-6.6.img
boot-6.6-gz.img
boot-6.6-lz4.img |
| 2025-07-01 |
android15-6.6-2025-05_r11SHA-1: b19fa0f3f266a8a31523
Diff: r10..r11
LICENSES
|
kernel |
boot-6.6.img
boot-6.6-gz.img
boot-6.6-lz4.img |
| 2025-07-03 |
android15-6.6-2025-05_r12SHA-1: 0c6ef76708913fe61c0d
Diff: r11..r12
LICENSES
|
kernel |
boot-6.6.img
boot-6.6-gz.img
boot-6.6-lz4.img |
| 2025-07-12 |
android15-6.6-2025-05_r13SHA-1: c2569c3b141cb39a6c2b
Diff: r12..r13
LICENSES
|
kernel |
boot-6.6.img
boot-6.6-gz.img
boot-6.6-lz4.img |
| 2025-07-31 |
android15-6.6-2025-05_r14SHA-1: c2569c3b141cb39a6c2b
Diff: r13..r14
LICENSES
|
kernel |
boot-6.6.img
boot-6.6-gz.img
boot-6.6-lz4.img |
| 2025-08-15 |
android15-6.6-2025-05_r15SHA-1: 409dc5e8ab5545ffe94d
Diff: r14..r15
LICENSES
|
kernel |
boot-6.6.img
boot-6.6-gz.img
boot-6.6-lz4.img |
Debug build
| Release date | Tag / Source / Changes / Licenses |
Debug kernel artifacts | Debug boot images |
|---|---|---|---|
| 2025-05-09 |
android15-6.6-2025-05_r1SHA-1: b2cebbc8442459530cec
Diff: prev_r1..r1
LICENSES
|
The build is cancelled. Sign in to see details. | |
| 2025-05-12 |
android15-6.6-2025-05_r2SHA-1: 34ab3dd83c568f6fd4f2
Diff: r1..r2
LICENSES
|
The build is cancelled. Sign in to see details. | |
| 2025-05-16 |
android15-6.6-2025-05_r3SHA-1: 929ee12a0c1d2f25b93d
Diff: r2..r3
LICENSES
|
The build is cancelled. Sign in to see details. | |
| 2025-05-21 |
android15-6.6-2025-05_r4SHA-1: 431f91a19263ee926e41
Diff: r3..r4
LICENSES
|
The build is cancelled. Sign in to see details. | |
| 2025-05-22 |
android15-6.6-2025-05_r5SHA-1: a7fd09ec3403678e97af
Diff: r4..r5
LICENSES
|
The build is cancelled. Sign in to see details. | |
| 2025-05-23 |
android15-6.6-2025-05_r6SHA-1: a7fd09ec3403678e97af
Diff: r5..r6
LICENSES
|
The build is cancelled. Sign in to see details. | |
| 2025-05-29 |
android15-6.6-2025-05_r7SHA-1: ab440fc01659eb58c678
Diff: r6..r7
LICENSES
|
The build is cancelled. Sign in to see details. | |
| 2025-05-29 |
android15-6.6-2025-05_r8SHA-1: 3375ca4f3721e056bec3
Diff: r7..r8
LICENSES
|
The build is cancelled. Sign in to see details. | |
| 2025-05-31 |
android15-6.6-2025-05_r9SHA-1: 7b1f522c80c811c59e05
Diff: r8..r9
LICENSES
|
kernel |
boot-6.6-allsyms.img
boot-6.6-gz-allsyms.img
boot-6.6-lz4-allsyms.img |
| 2025-06-18 |
android15-6.6-2025-05_r10SHA-1: 12156ff4de9596a5b31f
Diff: r9..r10
LICENSES
|
kernel |
boot-6.6-allsyms.img
boot-6.6-gz-allsyms.img
boot-6.6-lz4-allsyms.img |
| 2025-07-01 |
android15-6.6-2025-05_r11SHA-1: b19fa0f3f266a8a31523
Diff: r10..r11
LICENSES
|
kernel |
boot-6.6-allsyms.img
boot-6.6-gz-allsyms.img
boot-6.6-lz4-allsyms.img |
| 2025-07-03 |
android15-6.6-2025-05_r12SHA-1: 0c6ef76708913fe61c0d
Diff: r11..r12
LICENSES
|
kernel |
boot-6.6-allsyms.img
boot-6.6-gz-allsyms.img
boot-6.6-lz4-allsyms.img |
| 2025-07-12 |
android15-6.6-2025-05_r13SHA-1: c2569c3b141cb39a6c2b
Diff: r12..r13
LICENSES
|
kernel |
boot-6.6-allsyms.img
boot-6.6-gz-allsyms.img
boot-6.6-lz4-allsyms.img |
| 2025-07-31 |
android15-6.6-2025-05_r14SHA-1: c2569c3b141cb39a6c2b
Diff: r13..r14
LICENSES
|
kernel |
boot-6.6-allsyms.img
boot-6.6-gz-allsyms.img
boot-6.6-lz4-allsyms.img |
| 2025-08-15 |
android15-6.6-2025-05_r15SHA-1: 409dc5e8ab5545ffe94d
Diff: r14..r15
LICENSES
|
kernel |
boot-6.6-allsyms.img
boot-6.6-gz-allsyms.img
boot-6.6-lz4-allsyms.img |
April 2025 releases
- Branch:
android15-6.6-2025-04(history) - Version:
6.6.82 - No longer respin eligible from 2025-11-01, unless for security patches cited in the Android Security Bulletin (ASB) upon explicit partner request.
- Deprecated from 2026-05-01. No respins allowed after this date.
Release build
Debug build
March 2025 releases
- Branch:
android15-6.6-2025-03(history) - Version:
6.6.77 - No longer respin eligible from 2025-10-01, unless for security patches cited in the Android Security Bulletin (ASB) upon explicit partner request.
- Deprecated from 2026-04-01. No respins allowed after this date.
Release build
Debug build
Android15-6.6 maintenance releases
Branches over six months enter maintenance stage. These branches are eligible for respin only by an explicit request from a partner for security patches cited in Android Security Bulletin (ASB).
February 2025 releases
- Branch:
android15-6.6-2025-02(history) - Version:
6.6.66 - No longer respin eligible from 2025-09-01, unless for security patches cited in the Android Security Bulletin (ASB) upon explicit partner request.
- Deprecated from 2026-03-01. No respins allowed after this date.
Release build
Debug build
January 2025 releases
- Branch:
android15-6.6-2025-01(history) - Version:
6.6.58 - No longer respin eligible from 2025-08-01, unless for security patches cited in the Android Security Bulletin (ASB) upon explicit partner request.
- Deprecated from 2026-02-01. No respins allowed after this date.
Release build
Debug build
December 2024 releases
- Branch:
android15-6.6-2024-12(history) - Version:
6.6.57 - No longer respin eligible from 2025-07-01, unless for security patches cited in the Android Security Bulletin (ASB) upon explicit partner request.
- Deprecated from 2026-01-01. No respins allowed after this date.
Release build
Debug build
November 2024 releases
- Branch:
android15-6.6-2024-11(history) - Version:
6.6.56 - No longer respin eligible from 2025-06-01, unless for security patches cited in the Android Security Bulletin (ASB) upon explicit partner request.
- Deprecated from 2025-12-01. No respins allowed after this date.
Release build
Debug build
October 2024 releases
- Branch:
android15-6.6-2024-10(history) - Version:
6.6.50 - No longer respin eligible from 2025-05-01, unless for security patches cited in the Android Security Bulletin (ASB) upon explicit partner request.
- Deprecated from 2025-11-01. No respins allowed after this date.
Release build
Debug build
September 2024 releases
- Branch:
android15-6.6-2024-09(history) - Version:
6.6.46 - No longer respin eligible from 2025-04-01, unless for security patches cited in the Android Security Bulletin (ASB) upon explicit partner request.
- Deprecated from 2025-10-01. No respins allowed after this date.
Release build
Debug build
Android15-6.6 deprecated releases
Branches with an LTS level that doesn't comply with the latest minimum LTS level specified in the Android Security Bulletin (ASB) aren't supported. These branches don't get security updates and aren't supported for deployment.
Find deprecated builds at android15-6.6 deprecated builds.