Provide a configuration option to control automatic option
responses. 5496
Flask.open_resource/open_instance_resource and
Blueprint.open_resource take an encoding parameter to use when
opening in text mode. It defaults to utf-8. :issue:5504
Request.max_content_length can be customized per-request instead of only
through the MAX_CONTENT_LENGTH config. Added
MAX_FORM_MEMORY_SIZE and MAX_FORM_PARTS config. Added documentation
about resource limits to the security page. :issue:5625
Add support for the Partitioned cookie attribute (CHIPS), with the
SESSION_COOKIE_PARTITIONED config. :issue:5472
-e path takes precedence over default .env and .flaskenv files.
load_dotenv loads default files in addition to a path unless
load_defaults=False is passed. :issue:5628
Support key rotation with the SECRET_KEY_FALLBACKS config, a list of old
secret keys that can still be used for unsigning. Extensions will need to
add support. :issue:5621
Fix how setting host_matching=True or subdomain_matching=False
interacts with SERVER_NAME. Setting SERVER_NAME no longer restricts
requests to only that domain. :issue:5553
Request.trusted_hosts is checked during routing, and can be set through
the TRUSTED_HOSTS config. :issue:5636
Configuration
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Automerge: Disabled by config. Please merge this manually once you are satisfied.
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