FastAPI 0.156.5 and 0.156.6 fix path and model aliases

Version 0.156.5, published on October 21 at 16:24 KST, fixes AliasChoices for path parameters. Version 0.156.6, published at 16:57 KST, respects model alias settings for query, header and cookie parameters. GitHub stable releases and PyPI wheel/source files with actual upload times were verified for both. Check regression coverage for aliased API paths and request models.

Announced2026-10-21T07:57:45Z