When Did Python 3.13 Come Out ((full)) [EXTENDED]

That was it. That was the bullet that killed the payroll servers. A utility function, soft-deprecated in 3.13, then fully yanked in 3.15. The ancient 2.7 script had been patched with a band-aid that called the removed method. When the system upgraded automatically, the foundation crumbled.

This release is significant because it introduces several foundational changes aimed at improving performance and developer experience. The most notable features include: when did python 3.13 come out