1 INTRODUCTION
2 REDSHIFT FOLLOW-UP (NEW OBSERVATIONS)
2.1 The NOAO- XMM Cluster Survey
2.2 Photometric redshifts
2.3 Spectroscopic redshifts
3 REDSHIFT FOLLOW-UP (ARCHIVE)
3.1 Redshifts from SDSS (photometric)
3.2 Redshifts from SDSS (spectroscopic)
3.3 Redshifts from the literature
4 QUALITY CONTROL
4.1 Candidate identification using XCS-Zoo
4.2 Candidate identification using the literature or multi-object spectroscopy
4.3 Candidates that were not serendipitous detections
5 THE XCS-DR1 CLUSTER CATALOGUE
5.1 The XCS-DR1 data table and webpage
5.2 Selection of the cluster redshift
5.3 Photometric redshift accuracy
5.4 Selection of alternative names
6 SUMMARY AND DISCUSSION
6.1 Redshift follow-up (new observations)
6.2 Redshift follow-up (archive)
6.3 Quality control
6.4 The cluster catalogue
6.5 Selected subsamples of XCS-DR1 clusters