| Sample set release | February 11th, 2021 | Zenodo |
| Training set release | April 15th, 2021 | Zenodo |
| Annotation Guidelines release | April 15th, 2021 | Zenodo |
| Evaluation Library release | May 3rd, 2021 | GitHub |
| Test set release (start of evaluation period) | June 1st, 2021 | Zenodo |
| End of evaluation period (system submissions) | June 9th, 2021 | Submission Page |
| Test set with GS annotations released | June 12th, 2021 | Zenodo |
| Working papers submission | June 21st, 2021 | |
| Notification of acceptance (peer-reviews) | June 27th, 2021 | |
| Camera-ready system descriptions | July 4th, 2021 | |
| IberLEF @ SEPLN 2021 | September 2021 | |