The editions, December 1998 to today
Each edition of XFS 3.x is a set of CEN Workshop Agreements — one part per device class, numbered CWA nnnnn-part. The numbers, dates and class counts below are read from the documents' front pages and forewords.
XFS 2.00 to 3.50
| Release | CWA | Date | Device classes | Approved · published | Participants listed |
|---|---|---|---|---|---|
| 2.00 | CWA 13449 | December 1998 | 10 | — | — |
| 3.00 | CWA 14050 | November 2000 | 13 | 2000-10-18 | — |
| 3.10 | CWA 15748 | July 2008 | 16 | 2007-11-29 | — |
| 3.20 | CWA 16374 | December 2011 | 16 | 2011-06-29 | — |
| 3.30 | CWA 16926 | August 2015 | 16 | — | — |
| 3.40 | CWA 16926 | February 2020 | 17 | 2019-10-08 · 2019-12-12 | 30 |
| 3.50 | CWA 16926 | December 2022 | 17 | 2022-11-08 · 2022-11-18 | 19 |
Three editions share the number CWA 16926, published in 2015, 2020 and 2022: a CWA keeps its number when it is revised, and the year tells them apart. Between 3.00 and 3.10 the parts were renumbered. A dash means the document does not print that fact.
XFS4IoT
| Release | Status | Date |
|---|---|---|
| 2021-01 | Released | |
| 2023-02 | Released | |
| 2024-03 | Released | |
| 2026-04 | Preview | June 28, 2026 |
XFS4IoT is published as CWA 17852 and maintained openly on GitHub by the Workshop. Each release is published as a preview first and declared final later.
How the standard grew
Release 2.00 covered 10 device classes: dispenser, card reader, PIN pad, printer, depository, cheque reader, sensors, text terminal, camera, and a vendor-dependent mode. Later editions added cash-in, card dispensing, barcode reading, item processing and biometrics, reaching 17 classes in 3.50. The documents grew more than the class count: the printer part went from under fifty pages in 1998 to over a hundred and thirty by 2015, as behaviour that early editions left to the manufacturer was specified.