11Version 1.7.0 (2016-03-03)
22==========================
33
4+ Language
5+ --------
6+
7+ * Soundness fixes to the interactions between associated types and
8+ lifetimes, specified in [ RFC 1214] , [ now generate errors] [ 1.7sf ] for
9+ code that violates the new rules. This is a significant change that
10+ is known to break existing code, so it has emitted warnings for the
11+ new error cases since 1.4 to give crate authors time to adapt. The
12+ details of what is changing are subtle; read the RFC for more.
13+
414Libraries
515---------
616
7- * Stabilized APIs
8- * ` Path `
9- * [ ` Path::strip_prefix ` ] [ ] (renamed from relative_from)
10- * [ ` path::StripPrefixError ` ] [ ] (new error type returned from strip_prefix)
11- * ` Ipv4Addr `
12- * [ ` Ipv4Addr::is_loopback ` ]
13- * [ ` Ipv4Addr::is_private ` ]
14- * [ ` Ipv4Addr::is_link_local ` ]
15- * [ ` Ipv4Addr::is_multicast ` ]
16- * [ ` Ipv4Addr::is_broadcast ` ]
17- * [ ` Ipv4Addr::is_documentation ` ]
18- * ` Ipv6Addr `
19- * [ ` Ipv6Addr::is_unspecified ` ]
20- * [ ` Ipv6Addr::is_loopback ` ]
21- * [ ` Ipv6Addr::is_multicast ` ]
22- * ` Vec `
23- * [ ` Vec::as_slice ` ]
24- * [ ` Vec::as_mut_slice ` ]
25- * ` String `
26- * [ ` String::as_str ` ]
27- * [ ` String::as_mut_str ` ]
28- * Slices
29- * ` <[T]>:: ` [ ` clone_from_slice ` ] , which now requires the two slices to
30- be the same length
31- * ` <[T]>:: ` [ ` sort_by_key ` ]
32- * checked, saturated, and overflowing operations
33- * [ ` i32::checked_rem ` ] , [ ` i32::checked_neg ` ] , [ ` i32::checked_shl ` ] , [ ` i32::checked_shr ` ]
34- * [ ` i32::saturating_mul ` ]
35- * [ ` i32::overflowing_add ` ] , [ ` i32::overflowing_sub ` ] , [ ` i32::overflowing_mul ` ] , [ ` i32::overflowing_div ` ]
36- * [ ` i32::overflowing_rem ` ] , [ ` i32::overflowing_neg ` ] , [ ` i32::overflowing_shl ` ] , [ ` i32::overflowing_shr ` ]
37- * [ ` u32::checked_rem ` ] , [ ` u32::checked_neg ` ] , [ ` u32::checked_shl ` ] , [ ` u32::checked_shl ` ]
38- * [ ` u32::saturating_mul ` ]
39- * [ ` u32::overflowing_add ` ] , [ ` u32::overflowing_sub ` ] , [ ` u32::overflowing_mul ` ] , [ ` u32::overflowing_div ` ]
40- * [ ` u32::overflowing_rem ` ] , [ ` u32::overflowing_neg ` ] , [ ` u32::overflowing_shl ` ] , [ ` u32::overflowing_shr ` ]
41- * and checked, saturated, and overflowing operations for other primitive types
42- * FFI
43- * [ ` ffi::IntoStringError ` ]
44- * [ ` CString::into_string ` ]
45- * [ ` CString::into_bytes ` ]
46- * [ ` CString::into_bytes_with_nul ` ]
47- * ` From<CString> for Vec<u8> `
48- * ` IntoStringError `
49- * [ ` IntoStringError::into_cstring ` ]
50- * [ ` IntoStringError::utf8_error ` ]
51- * ` Error for IntoStringError `
52- * Hashing
53- * [ ` std::hash::BuildHasher ` ]
54- * [ ` BuildHasher::Hasher ` ]
55- * [ ` BuildHasher::build_hasher ` ]
56- * [ ` std::hash::BuildHasherDefault ` ]
57- * [ ` HashMap::with_hasher ` ]
58- * [ ` HashMap::with_capacity_and_hasher ` ]
59- * [ ` HashSet::with_hasher ` ]
60- * [ ` HashSet::with_capacity_and_hasher ` ]
61- * [ ` std::collections::hash_map::RandomState ` ]
62- * [ ` RandomState::new ` ]
17+ * Stabilized APIs:
18+ [ ` Path::strip_prefix ` ] [ ] (renamed from relative_from),
19+ [ ` path::StripPrefixError ` ] [ ] (new error type returned from strip_prefix),
20+ [ ` Ipv4Addr::is_loopback ` ] ,
21+ [ ` Ipv4Addr::is_private ` ] ,
22+ [ ` Ipv4Addr::is_link_local ` ] ,
23+ [ ` Ipv4Addr::is_multicast ` ] ,
24+ [ ` Ipv4Addr::is_broadcast ` ] ,
25+ [ ` Ipv4Addr::is_documentation ` ] ,
26+ [ ` Ipv6Addr::is_unspecified ` ] ,
27+ [ ` Ipv6Addr::is_loopback ` ] ,
28+ [ ` Ipv6Addr::is_multicast ` ] ,
29+ [ ` Vec::as_slice ` ] ,
30+ [ ` Vec::as_mut_slice ` ] ,
31+ [ ` String::as_str ` ] ,
32+ [ ` String::as_mut_str ` ] ,
33+ ` <[T]>:: ` [ ` clone_from_slice ` ] , which now requires the two slices to
34+ be the same length
35+ ` <[T]>:: ` [ ` sort_by_key ` ] ,
36+ [ ` i32::checked_rem ` ] ,
37+ [ ` i32::checked_neg ` ] ,
38+ [ ` i32::checked_shl ` ] ,
39+ [ ` i32::checked_shr ` ] ,
40+ [ ` i32::saturating_mul ` ] ,
41+ [ ` i32::overflowing_add ` ] ,
42+ [ ` i32::overflowing_sub ` ] ,
43+ [ ` i32::overflowing_mul ` ] ,
44+ [ ` i32::overflowing_div ` ] ,
45+ [ ` i32::overflowing_rem ` ] ,
46+ [ ` i32::overflowing_neg ` ] ,
47+ [ ` i32::overflowing_shl ` ] ,
48+ [ ` i32::overflowing_shr ` ] ,
49+ [ ` u32::checked_rem ` ] ,
50+ [ ` u32::checked_neg ` ] ,
51+ [ ` u32::checked_shl ` ] ,
52+ [ ` u32::checked_shl ` ] ,
53+ [ ` u32::saturating_mul ` ] ,
54+ [ ` u32::overflowing_add ` ] ,
55+ [ ` u32::overflowing_sub ` ] ,
56+ [ ` u32::overflowing_mul ` ] ,
57+ [ ` u32::overflowing_div ` ] ,
58+ [ ` u32::overflowing_rem ` ] ,
59+ [ ` u32::overflowing_neg ` ] ,
60+ [ ` u32::overflowing_shl ` ] ,
61+ [ ` u32::overflowing_shr ` ] ,
62+ checked, saturated, and overflowing operations for other primitive types,
63+ [ ` ffi::IntoStringError ` ] ,
64+ [ ` CString::into_string ` ] ,
65+ [ ` CString::into_bytes ` ] ,
66+ [ ` CString::into_bytes_with_nul ` ] ,
67+ ` From<CString> for Vec<u8> ` ,
68+ [ ` IntoStringError::into_cstring ` ] ,
69+ [ ` IntoStringError::utf8_error ` ] ,
70+ ` Error for IntoStringError ` .
6371* [ Validating UTF-8 is faster by a factor of between 7 and 14x for
6472 ASCII input] [ 1.7utf8 ] . This means that creating ` String ` s and ` str ` s
6573 from bytes is faster.
6674* [ The performance of ` LineWriter ` (and thus ` io::stdout ` ) was
6775 improved by using ` memchr ` to search for newlines] [ 1.7m ] .
6876* [ ` f32::to_degrees ` and ` f32::to_radians ` are stable] [ 1.7f ] . The
6977 ` f64 ` variants were stabilized previously.
70- * [ ` BTreeMap ` was rewritten to use less memory and improve the performance
71- of insertion and iteration, the latter by as much as 5x] [ 1.7bm ] .
78+ * [ ` BTreeMap ` was rewritten to use less memory improve performance of
79+ insertion and iteration, the latter by as much as 5x` ] [ 1.7bm ] .
7280* [ ` BTreeSet ` and its iterators, ` Iter ` , ` IntoIter ` , and ` Range ` are
7381 covariant over their contained type] [ 1.7bt ] .
7482* [ ` LinkedList ` and its iterators, ` Iter ` and ` IntoIter ` are covariant
@@ -81,13 +89,16 @@ Libraries
8189Misc
8290----
8391
92+ * [ The ` --error-format=json ` flag to ` rustc ` causes it to emit errors
93+ in JSON format] [ 1.7j ] . This is an unstable flag and so also requires
94+ the ` -Z unstable-options ` flag.
8495* [ When running tests with ` --test ` , rustdoc will pass ` --cfg `
8596 arguments to the compiler] [ 1.7dt ] .
86- * [ The compiler is built with RPATH information by default] [ 1.7rpa ] .
97+ * [ The compiler is built with RPATH information by default] [ 1.7rp ] .
8798 This means that it will be possible to run ` rustc ` when installed in
8899 unusual configurations without configuring the dynamic linker search
89100 path explicitly.
90- * [ ` rustc ` passes ` --enable-new-dtags ` to GNU ld] [ 1.7dta ] . This makes
101+ * [ ` rustc ` passes ` --enable-new-dtags ` to GNU ld] [ 1.7dt ] . This makes
91102 any RPATH entries (emitted with ` -C rpath ` ) * not* take precedence
92103 over ` LD_LIBRARY_PATH ` .
93104
@@ -102,12 +113,6 @@ Cargo
102113Compatibility Notes
103114-------------------
104115
105- * Soundness fixes to the interactions between associated types and
106- lifetimes, specified in [ RFC 1214] , [ now generate errors] [ 1.7sf ] for
107- code that violates the new rules. This is a significant change that
108- is known to break existing code, so it has emitted warnings for the
109- new error cases since 1.4 to give crate authors time to adapt. The
110- details of what is changing are subtle; read the RFC for more.
111116* [ Several bugs in the compiler's visibility calculations were
112117 fixed] [ 1.7v ] . Since this was found to break significant amounts of
113118 code, the new errors will be emitted as warnings for several release
@@ -127,28 +132,25 @@ Compatibility Notes
127132[ 1.7cp ] : https://github.com/rust-lang/cargo/pull/2224
128133[ 1.7d ] : https://github.com/rust-lang/rust/pull/30724
129134[ 1.7dt ] : https://github.com/rust-lang/rust/pull/30372
130- [ 1.7dta ] : https://github.com/rust-lang/rust/pull/30394
135+ [ 1.7dt ] : https://github.com/rust-lang/rust/pull/30394
131136[ 1.7f ] : https://github.com/rust-lang/rust/pull/30672
132137[ 1.7h ] : https://github.com/rust-lang/rust/pull/30818
138+ [ 1.7j ] : https://github.com/rust-lang/rust/pull/30711
133139[ 1.7ll ] : https://github.com/rust-lang/rust/pull/30663
134140[ 1.7m ] : https://github.com/rust-lang/rust/pull/30381
135141[ 1.7p ] : https://github.com/rust-lang/rust/pull/30681
136142[ 1.7rp ] : https://github.com/rust-lang/rust/pull/29498
137- [ 1.7rpa ] : https://github.com/rust-lang/rust/pull/30353
143+ [ 1.7rp ] : https://github.com/rust-lang/rust/pull/30353
138144[ 1.7rr ] : https://github.com/rust-lang/cargo/pull/2279
139145[ 1.7sf ] : https://github.com/rust-lang/rust/pull/30389
140146[ 1.7utf8 ] : https://github.com/rust-lang/rust/pull/30740
141147[ 1.7v ] : https://github.com/rust-lang/rust/pull/29973
142148[ RFC 1214 ] : https://github.com/rust-lang/rfcs/blob/master/text/1214-projections-lifetimes-and-wf.md
143- [ `BuildHasher::Hasher ` ] : http://doc.rust-lang.org/nightly/std/hash/trait.Hasher .html
144- [ `BuildHasher::build_hasher ` ] : http://doc.rust-lang.org/nightly/std/hash/trait.BuildHasher .html#tymethod.build_hasher
149+ [ `clone_from_slice ` ] : http://doc.rust-lang.org/nightly/std/primitive.slice .html#method.clone_from_slice
150+ [ `sort_by_key ` ] : http://doc.rust-lang.org/nightly/std/primitive.slice .html#method.sort_by_key
145151[ `CString::into_bytes_with_nul` ] : http://doc.rust-lang.org/nightly/std/ffi/struct.CString.html#method.into_bytes_with_nul
146152[ `CString::into_bytes` ] : http://doc.rust-lang.org/nightly/std/ffi/struct.CString.html#method.into_bytes
147153[ `CString::into_string` ] : http://doc.rust-lang.org/nightly/std/ffi/struct.CString.html#method.into_string
148- [ `HashMap::with_capacity_and_hasher` ] : http://doc.rust-lang.org/nightly/std/collections/struct.HashMap.html#method.with_capacity_and_hasher
149- [ `HashMap::with_hasher` ] : http://doc.rust-lang.org/nightly/std/collections/struct.HashMap.html#method.with_hasher
150- [ `HashSet::with_capacity_and_hasher` ] : http://doc.rust-lang.org/nightly/std/collections/struct.HashSet.html#method.with_capacity_and_hasher
151- [ `HashSet::with_hasher` ] : http://doc.rust-lang.org/nightly/std/collections/struct.HashSet.html#method.with_hasher
152154[ `IntoStringError::into_cstring` ] : http://doc.rust-lang.org/nightly/std/ffi/struct.IntoStringError.html#method.into_cstring
153155[ `IntoStringError::utf8_error` ] : http://doc.rust-lang.org/nightly/std/ffi/struct.IntoStringError.html#method.utf8_error
154156[ `Ipv4Addr::is_broadcast` ] : http://doc.rust-lang.org/nightly/std/net/struct.Ipv4Addr.html#method.is_broadcast
@@ -161,12 +163,10 @@ Compatibility Notes
161163[ `Ipv6Addr::is_multicast` ] : http://doc.rust-lang.org/nightly/std/net/struct.Ipv6Addr.html#method.is_multicast
162164[ `Ipv6Addr::is_unspecified` ] : http://doc.rust-lang.org/nightly/std/net/struct.Ipv6Addr.html#method.is_unspecified
163165[ `Path::strip_prefix` ] : http://doc.rust-lang.org/nightly/std/path/struct.Path.html#method.strip_prefix
164- [ `RandomState::new` ] : http://doc.rust-lang.org/nightly/std/collections/hash_map/struct.RandomState.html#method.new
165166[ `String::as_mut_str` ] : http://doc.rust-lang.org/nightly/std/string/struct.String.html#method.as_mut_str
166167[ `String::as_str` ] : http://doc.rust-lang.org/nightly/std/string/struct.String.html#method.as_str
167168[ `Vec::as_mut_slice` ] : http://doc.rust-lang.org/nightly/std/vec/struct.Vec.html#method.as_mut_slice
168169[ `Vec::as_slice` ] : http://doc.rust-lang.org/nightly/std/vec/struct.Vec.html#method.as_slice
169- [ `clone_from_slice` ] : http://doc.rust-lang.org/nightly/std/primitive.slice.html#method.clone_from_slice
170170[ `ffi::IntoStringError` ] : http://doc.rust-lang.org/nightly/std/ffi/struct.IntoStringError.html
171171[ `i32::checked_neg` ] : http://doc.rust-lang.org/nightly/std/primitive.i32.html#method.checked_neg
172172[ `i32::checked_rem` ] : http://doc.rust-lang.org/nightly/std/primitive.i32.html#method.checked_rem
@@ -182,13 +182,7 @@ Compatibility Notes
182182[ `i32::overflowing_sub` ] : http://doc.rust-lang.org/nightly/std/primitive.i32.html#method.overflowing_sub
183183[ `i32::saturating_mul` ] : http://doc.rust-lang.org/nightly/std/primitive.i32.html#method.saturating_mul
184184[ `path::StripPrefixError` ] : http://doc.rust-lang.org/nightly/std/path/struct.StripPrefixError.html
185- [ `sort_by_key` ] : http://doc.rust-lang.org/nightly/std/primitive.slice.html#method.sort_by_key
186- [ `std::collections::hash_map::RandomState` ] : http://doc.rust-lang.org/nightly/std/collections/hash_map/struct.RandomState.html
187- [ `std::hash::BuildHasherDefault` ] : http://doc.rust-lang.org/nightly/std/hash/struct.BuildHasherDefault.html
188- [ `std::hash::BuildHasher` ] : http://doc.rust-lang.org/nightly/std/hash/trait.BuildHasher.html
189- [ `u32::checked_neg` ] : http://doc.rust-lang.org/nightly/std/primitive.u32.html#method.checked_neg
190185[ `u32::checked_rem` ] : http://doc.rust-lang.org/nightly/std/primitive.u32.html#method.checked_rem
191- [ `u32::checked_neg` ] : http://doc.rust-lang.org/nightly/std/primitive.u32.html#method.checked_neg
192186[ `u32::checked_shl` ] : http://doc.rust-lang.org/nightly/std/primitive.u32.html#method.checked_shl
193187[ `u32::overflowing_add` ] : http://doc.rust-lang.org/nightly/std/primitive.u32.html#method.overflowing_add
194188[ `u32::overflowing_div` ] : http://doc.rust-lang.org/nightly/std/primitive.u32.html#method.overflowing_div
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