We are writing to keep you up to date with progress on the relaunch of Acta Crystallographica Section E.

The first step in the relaunch of Acta E in June 2014 heralded its transformation from Structure Reports Online to Crystallographic Communications. It introduced papers in the new Research Communications format: these are full reports designed to bring out the science behind a structure determination. You can browse the wide range of papers published in this format at http://journals.iucr.org/e/.

One of the stated aims of the relaunch has been to regain indexing in the Science Citation Index. We are therefore delighted to announce that the journal is now included in Thomson Reuters' new Emerging Sources Citation Index (ESCI). This means that articles published in Acta E can now be found in searches of the Science Citation Index.

From the start of 2016, Acta E has only published papers in the longer Research Communications format. This does not, however, spell the end for short structure reports. Data Reports have a new home in the IUCr's innovative open-access data publication, IUCrData (http://iucrdata.iucr.org).

We look forward to receiving your articles in Acta E or IUCrData.

Best wishes