All EMA IT systems temporarily unavailable from 06:00 on Saturday 16 April to 06:00 on Sunday 17 April 2016 (UK time) due to essential maintenance. The Annex 1 – A guide to the filenaming convention for eSubmission document describing the detailed filenaming conventions for submissions via eSubmission Gateway has been updated with new, additional filenaming conventions for ancillary medicinal substances, PASS 107, Signal Detection, NAPs included in a worksharing procedures and Clinical Trial Publication submissions. The PSUR Repository bulletin has been updated.