Android API Version's
| Version | API Level | Code Name |
|---|---|---|
| Android 15 | (API level 35) | Vanilla Ice Cream |
| Android 14 | (API level 34) | Upside Down Cake |
| Android 13 | (API level 33) | Tiramisu |
| Android 12 | (API level 32) | Snow Cone (S_V2) |
| Android 12 | (API level 31) | Snow Cone (S) |
| Android 11 | (API level 30) | Red Velvet Cake (R) |
| Android 10 | (API level 29) | Quince Tart |
| Android 9 | (API level 28) | Pie |
| Android 8.1 | (API level 27) | Oreo (O_MR1) |
| Android 8.0 | (API level 26) | Oreo (O) |
| Android 7.1 | (API level 25) | Nougat (N_MR1) |
| Android 7.0 | (API level 24) | Nougat (N) |
| Android 6.0 | (API level 23) | Marchmallow |
| Android 5.1 | (API level 22) | Lollipop (L_MR1) |
| Android 5.0 | (API level 21) | Lollipop (L) |
| Android 4.4W | (API level 20) | KitKat |
| Android 4.4 | (API level 19) | KitKat |
| Android 4.3 | (API level 18) | Jelly Bean (MR2) |
| Android 4.2 | (API level 17) | Jelly Bean (MR1) |
| Android 4.1 | (API level 16) | Jelly Bean |
| Android 4.0.3 | (API level 15) | Ice Cream Sandwich (MR1) |
| Android 4.0 | (API level 14) | Ice Cream Sandwich |
| Android 3.2 | (API level 13) | Honeycomb (MR2) |
| Android 3.1 | (API level 12) | Honeycomb (MR1) |
| Android 3.0 | (API level 11) | Honeycomb |
| Android 2.3.3 | (API level 10) | Gingerbread (MR1) |
| Android 2.3 | (API level 9) | Gingerbread |
APK signing schemes
Android supports three application signing schemes:
- v1 scheme: based on JAR signing
- v2 scheme: APK Signature Scheme v2, which was introduced in Android 7.0 (API level 24).
- v3 scheme: APK Signature Scheme v3, which was introduced in Android 9 (API level 28).