It was the seventh consecutive day of releases of Israeli hostages from Gaza and Palestinians from Israeli prisons under the truce, which had been renewed early Thursday morning minutes before it was set to expire. That extension was set to last just 24 hours, and diplomats expressed some pessimism about the prospects for another extension to be agreed upon before the current arrangement expires on Friday.

Here’s what we know about the Israeli hostages released on Thursday.

Mia Schem, 21

Mia Schem, 21, a dual Israeli-French citizen, was abducted from the site of the Tribe of Nova music festival where at least 260 people were killed in the Hamas-led assault on Israel on Oct. 7.

She was shown in a video released by Hamas on Oct. 16, the first images released by the group of any of the roughly 240 hostages. In the video, she said that she had undergone surgery on her arm after being abducted, though the reason was unclear. (According to an analysis by The New York Times, metadata contained within the video file indicates that some of the footage was filmed at least six days before it was released.)

Amit Soussana, 40

Amit Soussana, 40, a lawyer, was kidnapped from Kibbutz Kfar Aza a few miles east of Gaza. At the time, she had been at home with a fever, according to The Times of Israel. Her family told Israeli news organizations that during the Oct. 7 assault, Ms. Soussana hid in a safe room in her house, but the attackers were still able to reach her.

She and her family are left-leaning politically and had called for peaceful coexistence with Palestinians. Her sister, Shira Soussana, said that the kidnapping has shaken the family’s sense of security. “We don’t have a belief anymore in people, it’s so evil,” she said, adding, “on both sides.”

Ilana Gritzewsky Kimchi, 30

Ilana Gritzewsky Kimchi, 30, is an immigrant from Mexico, according to the Hostages and Missing Persons Families Forum. Ms. Gritzewsky Kimchi was kidnapped on Oct. 7 from Kibbutz Nir Oz, where scores of residents were murdered by Hamas.

Nili Margalit, 41

Nili Margalit, 41, was kidnapped from Kibbutz Nir Oz. On the morning of the attack, she texted friends to say that she was locked in a safe room with her dog and that for hours she had been hearing attackers walking around outside, according to The Times of Israel.

Ms. Margalit works as a nurse in southern Israel at the Soroka Medical Center, the Rambam Health Care Campus said on Facebook. Another former hostage, Yocheved Lifshitz, 85, told The Times of Israel that she had seen Ms. Margalit caring for other people while they were being held captive.

Sapir Cohen, 29

Sapir Cohen, 29, was taken hostage along with her boyfriend, Sasha Trupanob, 28, from Kibbutz Nahal Oz, where they were visiting his family.

Mr. Trupanob’s mother, Yelena Trupanob, and grandmother, Irena Tati, both Russian émigrés, were also taken hostage but were released on Wednesday.

Mr. Trupanob is believed to remain in Gaza.

Aisha Ziyadne, 17; Bilal Ziyadne, 18

Aisha Ziyadne, 17, and her brother Bilal Ziyadne, 18, are Bedouin Muslim citizens of Israel. They were kidnapped along with their father, Yousef, and brother, Hamza, from Kibbutz Holit near the border with Gaza, Israeli officials said. The Ziyadne family — the name is sometimes transliterated as Alziadna — had been calling on the Israeli government to do more to free them.

Shani Goren, 29

Shani Goren, 29, a teacher, was abducted from the safe room in her home at Kibbutz Nir Oz on the morning of Oct. 7, according to Israeli news outlets.

In captivity, she looked after a 12-year-old boy, Eitan Yahami, who had been taken hostage from the same kibbutz, The Jerusalem Post reported. Eitan was released on Tuesday.

Ms. Goren was born in Israel and holds Uruguayan citizenship through her grandparents, who settled in Israel in 1953.