Below are notes on the features of the software used to process the K2 data. Any changes to the pipeline that directly impact the data quality or format are listed for each data release. Any change impacts all subsequent data releases unless stated otherwise. Information about each specific campaign can be found in the links associated with each data release.
| Data Release | Date | SOC Version | Campaign(s) | Notes |
|---|---|---|---|---|
| 40 | 2020-04 | 9.3 | 14 | Final C14, and global, uniform reprocessing delivery. |
| 39 | 2020-04 | 9.3 | 12 | Final C12 reprocessing delivery. |
| 38 | 2020-01 | 9.3 | 8 | Final C8 reprocessing delivery. |
| 37 | 2020-01 | 9.3 | 10 | Final C10 reprocessing delivery. |
| 36 | 2019-10 | 9.3 | 7 | Final C7 reprocessing delivery. |
| 35 | 2019-10 | 9.3 | 6 | Final C6 reprocessing delivery. |
| 34 | 2019-09 | 9.3 | 2 | C2 short-cadence target pixels: fix reprocessing error. |
| 33 | 2019-07 | 9.3 | 4 | Final C4 reprocessing delivery. |
| 32 | 2019-06 | 9.3 | 1 | Final C1 reprocessing delivery. |
| 31 | 2019-03 | 9.3 | 5 | Final C5 reprocessing delivery. |
| 30 | 2019-04 | 9.3 | 11 | Final C11 reprocessing delivery. |
| 29 | 2019-05 | 9.3 | 19 | First and only delivery of C19. |
| 28 | 2018-12 | 9.3 | 0 | Final C0 reprocessing delivery. |
| 27 | 2018-10 | 9.3 | 18 | First and only delivery of C18. |
| 26 | 2019-09 | 9.3 | 3 | Final C3 reprocessing delivery. |
| 25 | 2018-08 | 9.3 | 17 | First and only delivery of C17. |
| 24 | 2018-07 | 9.3 | 13 | Final C13 reprocessing delivery. |
| 23 | 2018-05 | 9.3 | 16 | First and only delivery of C16. |
| 22 | 2018-03 | 9.3 | 15 | First and only delivery of C15. |
| 21 | 2018-05 | 9.3 | 2 | Final C2 long-cadence reprocessing delivery (see DR34). |
| 20 | 2017-12 | 9.3 | 14 | First delivery of C14. |
| 19 | 2017-08 | 9.3 | 13 | First delivery of C13. |
| 18 | 2017-08 | 9.3 | 12 | First delivery of C12. |
| 17 | 2017-06 | 9.3 | 11 | First delivery of C11. |
| 16 | 9.3 | 0 | Assigned to reprocessing of C0 but never delivered. | |
| 15 | 2016-12 | 9.3 | 10 | First delivery of C10. |
| 14 | 2016-12 | 9.3 | 1 | Re-delivery of C1, long-cadence light curves for first time. |
| 13 | 9.3 | 2 | Assigned to reprocessing of C2 but never delivered. | |
| 12 | 2016-09 | 9.3 | 9 | First delivery of C9. |
| 11 | 2016-07 | 9.3 | 8 | First delivery of C8. |
| 10 | 2016-07 | 9.3 | 3,4,5 | Reprocessing of C3, C4, and C5 short-cadence data. |
| 9 | 2016-04 | 9.3 | 7 | First delivery of C7. |
| 8 | 2016-02 | 9.3 | 6 | First delivery of C6. |
| SC Smear Erratum | 2016-02 | DR1-DR7 | ||
| 7 | 2015-11 | 9.3 | 5 | First delivery of C5. |
| 6 | 2015-09 | 9.3 | 4 | First delivery of C4. |
| 5 | 2015-07 | 9.3 | 3 | First delivery of C3, first time light curves are delivered. |
| 4 | 2015-03 | 9.2 | 2 | First delivery of C2, no light curves delivered. |
| 3 | 2014-12 | 9.2 | 1 | First delivery of C1, no light curves delivered. |
| 2 | 2014-10 | 9.2 | 0 | Fixes WCS in target pixels + flux column missing pixels. |
| 1 | 2014-09 | 9.2 | 0 | First delivery of C0, no light curves delivered. |