v0.7.0

Added

• BTreeSet, BTreeMap, and LinkedList subjects, including BTreeSet and BTreeMap assertions in no_std builds.
• contains_all for every collection and into_iter_contains_all for streaming iterators.
• Sets gained contains_matching, contains_satisfying, does_not_contain_matching, does_not_contain_satisfying,
  and the whole contains_exactly_in_any_order{,_matching,_satisfying} family.
• Maps gained contains_entry_satisfying, contains_exactly_entries_matching, and
  contains_exactly_entries_satisfying.
• Structured captured failures through the public AssertionFailure type.
• assert_that_owned! for consuming assertions; assert_that! now borrows its subject.
• Reusable borrowed conditions and the fluent be(condition) alias.
• Fluent aliases for iterator, async function, program, command, and reqwest response assertions.
• AssertThat::track_assertion and AssertThat::fail_with_details for custom assertions.
• Complete public API documentation and dual-license files in both packages.
• Floating-point is_normal() and is_subnormal() assertions.
• TokioMutexAssertions::has_value_satisfying.
• reqwest status-class, header, text-body, and JSON-body assertions and projections.
• Separate serde-json and serde-toml features; serde still enables both.

Changed

• Breaking: Generic container traits replace the per-type traits, and map assertions use native borrowed lookup.
  Prelude calls are mostly unchanged; sets use contains_exactly_in_any_order, while custom implementors may need the
  new Collection, Sequence, Set, Map, MapLookup, or MapKeyQuery traits.
• Breaking: Capture mode is closure-scoped and returns Vec<AssertionFailure>. Mode is sealed, mid-chain mode
  conversions are gone, and unused chains use #[must_use] warnings instead of panicking destructors.
• Breaking: Variant checks such as is_some, is_ok, and is_ready no longer extract. Use get_some, get_ok,
  get_err, get_ready, or get_ascii before asserting on the contained value.
• Breaking: Borrowing is now the default for assert_that!, projections, and satisfying callbacks. Consuming
  assertions and owned mappers use assert_that_owned!, must_owned, verify_owned, satisfies_owned,
  satisfy_owned, or derive_owned.
• Breaking: Condition was renamed to AssertrCondition; negated fluent aliases put not first; and need_drop
  now requires fluent (otherwise use needs_drop).
• Breaking: Generic StrAssertions replaces StringAssertions and StrSliceAssertions. Prelude users are
  unaffected.
• Breaking: The reqwest and rootcause integrations now use version 0.13. assertr also stops enabling
  reqwest defaults, tokio/full, and serde/derive for downstream builds.
• Breaking: With default features disabled, std and libm no longer imply num; enable num explicitly when
  needed. The default feature set is unchanged.
• Breaking: AssertionRenderer<T> was renamed to ValueRenderer<T>, and renderer bounds moved to individual
  assertion methods. Direct trait implementors and generic callers may need new renderer bounds or associated types.
• Collection, string, and path assertions preserve subject names and require fewer renderer capabilities.
• Negative and condition failures now provide clearer structured details, including failing element indexes.
• Dependency selection is narrower: the default build drops from 24 dependencies to 2, and the all-features build from
  141 to 99. Async panic assertions no longer require UnwindSafe futures.
• Documentation was reorganized around the rustdoc assertion index and API-owned guides.
• assertr-derive: Bumped to 0.4.0.

Removed

• Breaking: AssertThat::with_capture, AssertThat::capture_failures, AssertThat::take_failures,
  AssertThat::without_capture, and capture-mode unwrap_inner.
• Breaking: The free functions assert_that(&value) and assert_that_owned(value), deprecated since 0.4.4, were
  removed. Use the assert_that! / assert_that_owned! macros or the fluent must() / must_owned() entry points.
• Breaking: The empty public modules details, tracking, and util are private now.
• Breaking: The hidden, unused EqContext::add_field_difference_rendered_with method was removed.

Fixed

• References to arrays now implement HasLength.
• Custom assertion descriptions no longer run into the closing failure banner.
• is_in_range, is_not_in_range, Command::has_arg, reqwest::Response::has_status_code, the http::HeaderValue
  assertions, Tokio watch assertions, and async panic assertions now report the caller's location.
• Fixed standalone jiff, program, reqwest, serde*, and tokio feature builds.
• Corrected unnamed time-zone diagnostics and absent path-component checks.
• Exact collection, iterator, and map comparisons now handle multiplicity, duplicate keys, and overlapping custom
  equality relations correctly.
• Failure details no longer leak into later failures in the chain.
• Corrected Result variant spelling, erased Box<dyn Any> type names, and fluent alias generation edge cases.
• Async panic assertions now catch panics raised while invoking the function, before it returns a future.