v3.0:

Breaking changes:

• util:
  • Remove if_changed.
  • pretty_link: only link http and https URLs. For other URLs, return just the link text.

Non-breaking changes:

• flask_util:
  • Add bool_param for getting boolean query params/form arguments.
  • Add csp_report handler for logging Content-Security-Policy violation reports.
  • MODERN_HEADERS: tighten Content-Security-Policy significantly.
• models:
  • Fix missing import in Cache.get/Cache.put.
• testutil:
  • Add assert_html_equals, which compares HTML strings and ignores insignificant whitespace and attribute order.
  • requests_response: back the returned response with a urllib3.HTTPResponse instead of a bare BytesIO, so that resp.raw.stream() works for code that streams responses.
• util:
  • requests_*: add cache kwarg, an opt-in Flask-request-local cache of GET/HEAD responses and exceptions, keyed on method, URL, and Accept header.
  • encode: fix encoding kwarg, it was ignored for nested values and always used UTF-8.
  • is_connection_failure: make prawcore import optional.
  • linkify, tokenize_links: fix duplicated trailing punctuation after a link, eg http://foo.com/a).. became http://foo.com/a)..... .
  • clean_url: fix query params with escaped delimiters, eg ?a=b%26c lost the %26c. The query string was unescaped before it was parsed.
  • maybe_iso8601_to_rfc3339: return non-string inputs unchanged instead of raising AttributeError.
  • pretty_link: HTML-escape the URL in href and the attrs values.
  • to_utc_timestamp: fix timezone aware datetimes, they were read as wall clock time and their UTC offset was ignored.
  • trim_nulls: add keep_empty_values_in kwarg.