What does 2 Kings 25:28 mean?

But in the seventh month, Ishmael the son of Nethaniah, the son of Elishama, of the royal offspring came, and ten men with him, and struck Gedaliah, so that he died, with the Jews and the Chaldeans that were with him at Mizpah.

All the people, both small and great, and the captains of the forces, arose, and came to Egypt; for they were afraid of the Chaldeans.

In the thirty-seventh year of the captivity of Jehoiachin king of Judah, in the twelfth month, on the twenty-seventh day of the month, Evilmerodach king of Babylon, in the year that he began to reign, lifted up the head of Jehoiachin king of Judah out of prison;

and changed his prison garments. Jehoiachin ate bread before him continually all the days of his life;

and for his allowance, there was a continual allowance given him from the king, every day a portion, all the days of his life.