From NATO's site:

• In September 2020, President Volodymyr Zelenskyy approved Ukraine's new National Security Strategy, which provides for the development of the distinctive partnership with NATO with the aim of membership in NATO. In September 2022, following Russia’s illegal attempted annexations of Ukrainian territory, Ukraine reiterated its request for NATO membership.

• At the 2023 Vilnius Summit, Allies reaffirmed their commitment that Ukraine will become a member of NATO. Recognising Ukraine’s increased interoperability and substantial progress with reforms, they decided that Ukraine’s path to full Euro-Atlantic integration has moved beyond the need for the Membership Action Plan. Allies will continue to support and review Ukraine’s progress on interoperability as well as additional democratic and security sector reforms that are required on its path towards future membership. NATO Foreign Ministers will regularly assess progress through the adapted Annual National Programme. NATO will be in a position to extend an invitation to Ukraine to join the Alliance when Allies agree and conditions are met.