I searched "(kiev OR kyiv) site:____" with various English-language news sites on Google News, and sorted each result by date to get a recent article which referred specifically to the Ukrainian capital:
2017-12-15: "After students were beaten in Kiev’s central square…"
2017-11-24: "…knew it was time to leave his home of Kiev, Ukraine."
2017-12-14: "Kiev has been the scene of a somewhat farcical drama this month…"
2017-11-25: "…obtained from a government source in the Ukrainian capital, Kiev."
2017-11-28: "…March for Equality, an LGBTQ event in Kiev…"
2017-12-15: "…don’t want what has happened in Kiev to happen in their cities."
2017-12-15: "…the final of the Champions League in Kiev in May…"
2017-12-08: "…the opposition leader had been detained by police in Kiev…"
2017-12-09: "…was dragged from his home in Kiev and arrested."
2017-12-05: "…an apartment in the capital Kiev…"
2017-12-05: "…ran Manafort's office in Kiev…"
2017-12-05: "The turmoil in Kiev is just the latest challenge for the Ukrainian Government…"
Indeed, it seems these major English-language news outlets almost universally use "Kiev" to this day, except when the place name is used as part of a different proper noun, such as when referring to
the Kyiv Post. It's even in the BBC News style guide to use "Kiev" and not "Kyiv":
Although several of these outlets have written articles on the differences in orthography over the years, until there is enough common usage of "Kyiv" in the English language that a significant number of these outlets decide to switch, it is reasonable to say that "Kiev" remains the generally-accepted English spelling despite certain governmental recognitions of "Kyiv". But this is not the venue for that discussion.