1 # 12\. Document Changelog 2 3 For a summary of changes to the Compatibility Definition in this release: 4 5 * [Document changelog](https://android.googlesource.com/platform/compatibility/cdd/+log/CURRENT_BRANCH/?pretty=full&no-merges) 6 7 8 For a summary of changes to individuals sections: 9 10 1. [Introduction](https://android.googlesource.com/platform/compatibility/cdd/+log/CURRENT_BRANCH/1_introduction?pretty=full&no-merges) 11 1. [Device Types](https://android.googlesource.com/platform/compatibility/cdd/+log/CURRENT_BRANCH/2_device_types?pretty=full&no-merges) 12 1. [Software](https://android.googlesource.com/platform/compatibility/cdd/+log/CURRENT_BRANCH/3_software?pretty=full&no-merges) 13 1. [Application Packaging](https://android.googlesource.com/platform/compatibility/cdd/+log/CURRENT_BRANCH/4_application-packaging?pretty=full&no-merges) 14 1. [Multimedia](https://android.googlesource.com/platform/compatibility/cdd/+log/CURRENT_BRANCH/5_multimedia?pretty=full&no-merges) 15 1. [Developer Tools and Options](https://android.googlesource.com/platform/compatibility/cdd/+log/CURRENT_BRANCH/6_dev-tools-and-options?pretty=full&no-merges) 16 1. [Hardware Compatibility](https://android.googlesource.com/platform/compatibility/cdd/+log/CURRENT_BRANCH/7_hardware-compatibility?pretty=full&no-merges) 17 1. [Performance and Power](https://android.googlesource.com/platform/compatibility/cdd/+log/CURRENT_BRANCH/8_performance-and-power?pretty=full&no-merges) 18 1. [Security Model](https://android.googlesource.com/platform/compatibility/cdd/+log/CURRENT_BRANCH/9_security-model?pretty=full&no-merges) 19 1. [Software Compatibility Testing](https://android.googlesource.com/platform/compatibility/cdd/+log/CURRENT_BRANCH/10_software-compatibility-testing?pretty=full&no-merges) 20 1. [Updatable Software](https://android.googlesource.com/platform/compatibility/cdd/+log/CURRENT_BRANCH/11_updatable-software?pretty=full&no-merges) 21 1. [Document Changelog](https://android.googlesource.com/platform/compatibility/cdd/+log/CURRENT_BRANCH/12_document-changelog?pretty=full&no-merges) 22 1. [Contact Us](https://android.googlesource.com/platform/compatibility/cdd/+log/CURRENT_BRANCH/13_contact-us?pretty=full&no-merges) 23 24 ## 12.1\. Changelog Viewing Tips 25 26 Changes are marked as follows: 27 28 * **CDD** <br>Substantive changes to the compatibility requirements. 29 30 * **Docs** <br>Cosmetic or build related changes. 31 32 For best viewing, append the `pretty=full` and `no-merges` URL parameters to your 33 changelog URLs. 34 35
