The overall ATT&CK catalog is versioned using a major.minor version
schema.
The ATT&CK releases listed on the updates pages increment the major version
number.
The minor version number increments for our other small releases, which include typo and data corrections but not
typically new content.
Below are a list of versions of the ATT&CK website preserved for posterity, including a permalink to the current version of the site:
April 28, 2026 - current
October 28, 2025 - April 27, 2026
April 22, 2025 - October 27, 2025
October 31, 2024 - April 21, 2025