According to Gazeta.ru (in Russian), she showed up at the Prosecutor General's office on Saturday and answered their questions. As a result, she no longer faces arrest and imprisonment in Russia, according to today's statement by the Prosecutor General's office.
Tymoshenko's consultant Dmitry Vydrin said this:
Tymoshenko was in Moscow on Saturday. [...] It is possible that she met with Putin - in any case, it looks like a meeting like this should have occurred.