pypi / moto
moto
What changed in moto 4, from its official release notes, upgrade guides and advisories. Sources checked 2026-10-27.
2 breaking1 new APIs and options1 behavior and defaults
See which of these apply to your code, ranked, in your agent:
npx @unstale/cli initmoto 44 changes
Breaking changes 2
Removes the deprecated mock_dynamodb2 decorator.
Removes the deprecated mock_rds2 decorator.
New APIs and options 1
Introduces MultiAccount support.
Behavior and default changes 1
The API for the TreadedMotoServer is now considered stable.