Here are 10 points on her release:
Nazanin Zaghari-Ratcliffe was born in Tehran and worked as an English Teacher before her marriage to British National Richard Ratcliffe, after which she moved to London.
Zaghari-Ratcliffe is a 43-year-old project manager for the Thomson Reuters Foundation, the philanthropic arm of the media and data agency.
She was arrested on April 3, 2016 by Iranian Revolutionary Guards at the Tehran airport and was accused of plotting to overthrow the regime in the Islamic republic, which she denied.
Zaghari-Ratcliffe was sentenced to five years of imprisonment where she spent many days in isolation as well.
Her family has stated that they believe she was being held as a political prisoner until a debt between Britain and Iran was settled.
The UK has consciously avoided saying the detention of the Nazanin Zaghari-Ratcliffe and other political prisoners held in Iran, was linked to the debt for an order of tanks that was cancelled after the 1979 Islamic revolution.
But soon after the release was announced, British Foreign Secretary Liz Truss confirmed that London and Tehran had resolved the £394-million ($515-million) issue "after highly complex and exhaustive negotiations".
Iran's Foreign Minister Hossein Amir-Abdollahian also confirmed that Iran had received the money but added that it was "wrong to link Iran receiving its debt... to the release of these people".
On March 14, Nazanin Zaghari-Ratcliffe was given back her UK passport, according to British MP Tulip Siddiq.
Zaghari-Ratcliffe was reunited with her family on March 17 after 6 years, flying from Iran to Oman and finally to the United Kingdom.
Iran Capable Of Producing Fissile Material For Nukes In "1 Or 2 Weeks": US Iran Rejects US Accusations Of Any Involvement In Trump Assassination Bid As Iran Gets New President, Will It Change Its Stance On Nuclear Standoff? The 'Fake' CrowdStrike Worker Who Crippled Windows Users Worldwide Woman Dies, Many Feared Trapped After Portion Of Mumbai Building Collapses On Sonu Sood's Post About Kanwar Yatra Order, Kangana Ranaut's Rejoinder On Sonu Sood's Post About Kanwar Yatra Order, Kangana Ranaut's Rejoinder Salma Hayek Is A Garden Full Of Daisies Summed In A Dress Dutch Content Creator Finds Hotel Room For $1.4 In Pak, Internet Reacts Track Latest News Live on NDTV.com and get news updates from India and around the world.