What’s new?#

Version 0.19 (unreleased)#

The following authors contributed for the first time. Thank you so much! 🤩

The following authors had contributed before. Thank you for sticking around! 🤘

Add support for reading and writing MEF3 (Multiscale Electrophysiology Format) iEEG data with the .mefd extension. Requires MNE-Python 1.12 or later, by Bruno Aristimunha (#1511)
Save Annotations.extras fields in events.tsv files when writing events, by Pierre Guetschel (#1502)
Added support for EEGLAB and EEGLAB-HJ coordinate systems as defined in the BIDS specification. Both use ALS orientation (identical to CTF) and map to MNE’s ctf_head coordinate frame, by Bruno Aristimunha (#1514)
mne_bids.read_raw_bids() now reads channel units from channels.tsv and sets them on the raw object. This includes support for units like rad (radians), V, µV, mV, T, T/m, S, oC, M, and px. The write path was also updated to correctly write rad units to channels.tsv, by Alexandre Gramfort (#1509)

MEF3 (.mefd) file format support requires MNE-Python 1.12 or later, by Bruno Aristimunha (#1511)

Fix mne_bids.BIDSPath.find_matching_sidecar() to search for sidecar files at the dataset root level per the BIDS inheritance principle, by Bruno Aristimunha (#1508)
Reinstate the requirement for coordsystem.json whenever electrodes.tsv is present (including EMG), by Bruno Aristimunha (#1508)
Fix read_raw_bids() ignoring electrodes.tsv when EEGCoordinateUnits is "n/a" by inferring the unit from coordinate magnitudes, and synthesize approximate fiducials for ctf_head montages to enable the coordinate transform to head frame, by Bruno Aristimunha (#1506)