https://www.epo.org/en/node/i-need-submit

I need to submit sequence listings ‒ should I use WIPO Standard ST.26 or ST.25?

The international filing date is the reference date for deciding whether sequence listings must be submitted in accordance with WIPO Standard ST.26 or ST.25.

WIPO Standard ST.25 remains effective for applications with an international filing date prior to 1 July 2022. Applications with an international filing date on or after 1 July 2022 must comply with WIPO Standard ST.26.

For further information on the changed requirements for sequence listings, see OJ EPO 2021, A97.