Python 3.9. 0b1 * This is a beta preview of Python 3.9. Python 3.9 is still in development. This release, 3.9. 0b1, is the first o... Python.org Status of Python versions - Python Developer's Guide Table_title: Unsupported versions Table_content: header: | Branch | Schedule | Status | First release | End of life | Release mana... Python Developer’s Guide What's New in Python 3.9? - ActiveState 5 Nov 2020 —
Almost instantly, the notifications began to trickle in, then flood. A developer in Berlin cheered because her type hinting just became ten lines shorter. A data scientist in New York refreshed his package manager, eager to try the new zoneinfo module that would finally handle time zones without the heavy external libraries. A student in Mumbai saw the new string methods and realized her homework wasn't going to be a nightmare of off-by-one errors. python 3.9 release date
He closed the laptop. "Happy coding," he whispered to the empty room. Python 3
Python 3.9 has had a significant impact on the development community. Its new features and improvements have made Python an even more attractive choice for a wide range of applications, from web development and data science to artificial intelligence and automation. This release, 3
If you are running Python 3.9 in production today (April 2026), you are strongly advised to upgrade to Python 3.11 or newer (such as 3.12 or 3.13), as 3.9 no longer receives any security updates.
It was October 5, 2020.
"Tests green," a message pinged from a contributor in Japan. "Buildbots are happy."
Python 3.9. 0b1 * This is a beta preview of Python 3.9. Python 3.9 is still in development. This release, 3.9. 0b1, is the first o... Python.org Status of Python versions - Python Developer's Guide Table_title: Unsupported versions Table_content: header: | Branch | Schedule | Status | First release | End of life | Release mana... Python Developer’s Guide What's New in Python 3.9? - ActiveState 5 Nov 2020 —
Almost instantly, the notifications began to trickle in, then flood. A developer in Berlin cheered because her type hinting just became ten lines shorter. A data scientist in New York refreshed his package manager, eager to try the new zoneinfo module that would finally handle time zones without the heavy external libraries. A student in Mumbai saw the new string methods and realized her homework wasn't going to be a nightmare of off-by-one errors.
He closed the laptop. "Happy coding," he whispered to the empty room.
Python 3.9 has had a significant impact on the development community. Its new features and improvements have made Python an even more attractive choice for a wide range of applications, from web development and data science to artificial intelligence and automation.
If you are running Python 3.9 in production today (April 2026), you are strongly advised to upgrade to Python 3.11 or newer (such as 3.12 or 3.13), as 3.9 no longer receives any security updates.
It was October 5, 2020.
"Tests green," a message pinged from a contributor in Japan. "Buildbots are happy."