BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Until//Countdowns//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
BEGIN:VEVENT
UID:openai-api-models-gpt-5-3-codex-end-of-life-2027-04-01@until
DTSTAMP:20261019T190130Z
DTSTART;VALUE=DATE:20270401
DTEND;VALUE=DATE:20270402
SUMMARY:OpenAI API Models GPT-5.3-Codex end of life
DESCRIPTION:OpenAI API Models GPT-5.3-Codex reaches end of life on April 1\
 , 2027: upstream support ends and no further security fixes are expected. 
 It was released on February 5\, 2026. Active support ended on October 1\, 
 2026.\n\nCountdown: https://until.day/event/openai-api-models-gpt-5-3-code
 x-end-of-life-2027-04-01
URL:https://until.day/event/openai-api-models-gpt-5-3-codex-end-of-life-202
 7-04-01
END:VEVENT
END:VCALENDAR