The October releases of the Android Compatibility Test Suite (CTS) for Android 9.0, 8.1, 8.0, 7.1, and 7.0 are released on the AOSP website; see the android-partners announcement for more details.
These releases also contain continuous improvements of tests and test infrastructure and verify security patches up to September 2018 Public Security Bulletin.
These versions will be required for GMS approvals as shown in the table below:
| Release | Release version | Required-use date |
| CTS | 9.0 R3, 8.1 R10, 8.0 R14, 7.1 R22, 7.0 R26 | 2018-11-15 |
Android 9
Android 9 is the release of the development milestone code-named P. The source code for the following tests, including tests for instant apps, can be synced with the 'android-cts-9.0_r3' tag in the open-source tree.
- Android 9.0 R3 Compatibility Test Suite (CTS) - ARM
- Android 9.0 R3 Compatibility Test Suite (CTS) - x86
- Android 9.0 R3 CTS Verifier - ARM
- Android 9.0 R3 CTS Verifier - x86
- Android 9.0 R3 CTS for Instant Apps - ARM
- Android 9.0 R3 CTS for Instant Apps - x86
Android 8.1
Android 8.1 is the release of the development milestone code-named Oreo-MR1. The source code for the following tests can be synced with the 'android-cts-8.1_r10' tag in the open-source tree.
- Android 8.1 R10 Compatibility Test Suite (CTS) - ARM
- Android 8.1 R10 Compatibility Test Suite (CTS) - x86
- Android 8.1 R10 CTS Verifier - ARM
- Android 8.1 R10 CTS Verifier - x86
Android 8.0
Android 8.0 is the release of the development milestone code-named Oreo. The source code for the following tests can be synced with the 'android-cts-8.0_r14' tag in the open-source tree.
- Android 8.0 R14 Compatibility Test Suite (CTS) - ARM
- Android 8.0 R14 Compatibility Test Suite (CTS) - x86
- Android 8.0 R14 CTS Verifier - ARM
- Android 8.0 R14 CTS Verifier - x86
Android 7.1
Android 7.1 is the release of the development milestone code-named Nougat-MR1. The source code for the following tests can be synced with the 'android-cts-7.1_r22' tag in the open-source tree.
- Android 7.1 R22 Compatibility Test Suite (CTS) - ARM
- Android 7.1 R22 Compatibility Test Suite (CTS) - x86
- Android 7.1 R22 CTS Verifier - ARM
- Android 7.1 R22 CTS Verifier - x86
Android 7.0
Android 7.0 is the release of the development milestone code-named Nougat. The source code for the following tests can be synced with the 'android-cts-7.0_r26' tag in the open-source tree.
- Android 7.0 R26 Compatibility Test Suite (CTS) - ARM
- Android 7.0 R26 Compatibility Test Suite (CTS) - x86
- Android 7.0 R26 CTS Verifier - ARM
- Android 7.0 R26 CTS Verifier - x86
Android 6.0
Android 6.0 is the release of the development milestone code-named Marshmallow. The source code for the following tests can be synced with the 'android-cts-6.0_r32' tag in the open-source tree.