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1.70.0 release notes
This commit is contained in:
Mark Rousskov
parent
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RELEASES.md
136
RELEASES.md
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Version 1.70.0 (2023-06-01)
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==========================
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<a id="1.70.0-Language"></a>
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Language
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--------
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- [Relax ordering rules for `asm!` operands](https://github.com/rust-lang/rust/pull/105798/)
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- [Properly allow macro expanded `format_args` invocations to uses captures](https://github.com/rust-lang/rust/pull/106505/)
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- [Lint ambiguous glob re-exports](https://github.com/rust-lang/rust/pull/107880/)
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- [Perform const and unsafe checking for expressions in `let _ = expr` position.](https://github.com/rust-lang/rust/pull/102256/)
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<a id="1.70.0-Compiler"></a>
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Compiler
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--------
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- [Extend -Cdebuginfo with new options and named aliases](https://github.com/rust-lang/rust/pull/109808/)
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This provides a smaller version of debuginfo for cases that only need line number information
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(`-Cdebuginfo=line-tables-only`), which may eventually become the default for `-Cdebuginfo=1`.
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- [Make `unused_allocation` lint against `Box::new` too](https://github.com/rust-lang/rust/pull/104363/)
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- [Detect uninhabited types early in const eval](https://github.com/rust-lang/rust/pull/109435/)
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- [Switch to LLD as default linker for {arm,thumb}v4t-none-eabi](https://github.com/rust-lang/rust/pull/109721/)
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- [Add tier 3 target `loongarch64-unknown-linux-gnu`](https://github.com/rust-lang/rust/pull/96971)
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- [Add tier 3 target for `i586-pc-nto-qnx700` (QNX Neutrino RTOS, version 7.0)](https://github.com/rust-lang/rust/pull/109173/),
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- [Insert alignment checks for pointer dereferences as debug assertions](https://github.com/rust-lang/rust/pull/98112)
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This catches undefined behavior at runtime, and may cause existing code to fail.
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Refer to Rust's [platform support page][platform-support-doc]
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for more information on Rust's tiered platform support.
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<a id="1.70.0-Libraries"></a>
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Libraries
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---------
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- [Document NonZeroXxx layout guarantees](https://github.com/rust-lang/rust/pull/94786/)
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- [Windows: make `Command` prefer non-verbatim paths](https://github.com/rust-lang/rust/pull/96391/)
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- [Implement Default for some alloc/core iterators](https://github.com/rust-lang/rust/pull/99929/)
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- [Fix handling of trailing bare CR in str::lines](https://github.com/rust-lang/rust/pull/100311/)
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- [allow negative numeric literals in `concat!`](https://github.com/rust-lang/rust/pull/106844/)
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- [Add documentation about the memory layout of `Cell`](https://github.com/rust-lang/rust/pull/106921/)
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- [Use `partial_cmp` to implement tuple `lt`/`le`/`ge`/`gt`](https://github.com/rust-lang/rust/pull/108157/)
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- [Stabilize `atomic_as_ptr`](https://github.com/rust-lang/rust/pull/108419/)
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- [Stabilize `nonnull_slice_from_raw_parts`](https://github.com/rust-lang/rust/pull/97506/)
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- [Partial stabilization of `once_cell`](https://github.com/rust-lang/rust/pull/105587/)
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- [Stabilize `nonzero_min_max`](https://github.com/rust-lang/rust/pull/106633/)
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- [Flatten/inline format_args!() and (string and int) literal arguments into format_args!()](https://github.com/rust-lang/rust/pull/106824/)
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- [Stabilize movbe target feature](https://github.com/rust-lang/rust/pull/107711/)
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- [don't splice from files into pipes in io::copy](https://github.com/rust-lang/rust/pull/108283/)
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- [Add a builtin unstable `FnPtr` trait that is implemented for all function pointers](https://github.com/rust-lang/rust/pull/108080/)
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This extends `Debug`, `Pointer`, `Hash`, `PartialEq`, `Eq`, `PartialOrd`, and `Ord`
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implementations for function pointers with all ABIs.
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<a id="1.70.0-Stabilized-APIs"></a>
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Stabilized APIs
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---------------
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- [`NonZero*::MIN/MAX`](https://doc.rust-lang.org/stable/std/num/struct.NonZeroI8.html#associatedconstant.MIN)
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- [`BinaryHeap::retain`](https://doc.rust-lang.org/stable/std/collections/struct.BinaryHeap.html#method.retain)
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- [`Default for std::collections::binary_heap::IntoIter`](https://doc.rust-lang.org/stable/std/collections/binary_heap/struct.IntoIter.html)
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- [`Default for std::collections::btree_map::{IntoIter, Iter, IterMut}`](https://doc.rust-lang.org/stable/std/collections/btree_map/struct.IntoIter.html)
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- [`Default for std::collections::btree_map::{IntoKeys, Keys}`](https://doc.rust-lang.org/stable/std/collections/btree_map/struct.IntoKeys.html)
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- [`Default for std::collections::btree_map::{IntoValues, Values}`](https://doc.rust-lang.org/stable/std/collections/btree_map/struct.IntoKeys.html)
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- [`Default for std::collections::btree_map::Range`](https://doc.rust-lang.org/stable/std/collections/btree_map/struct.Range.html)
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- [`Default for std::collections::btree_set::{IntoIter, Iter}`](https://doc.rust-lang.org/stable/std/collections/btree_set/struct.IntoIter.html)
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- [`Default for std::collections::btree_set::Range`](https://doc.rust-lang.org/stable/std/collections/btree_set/struct.Range.html)
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- [`Default for std::collections::linked_list::{IntoIter, Iter, IterMut}`](https://doc.rust-lang.org/stable/alloc/collections/linked_list/struct.IntoIter.html)
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- [`Default for std::vec::IntoIter`](https://doc.rust-lang.org/stable/alloc/vec/struct.IntoIter.html#impl-Default-for-IntoIter%3CT,+A%3E)
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- [`Default for std::iter::Chain`](https://doc.rust-lang.org/stable/std/iter/struct.Chain.html)
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- [`Default for std::iter::Cloned`](https://doc.rust-lang.org/stable/std/iter/struct.Cloned.html)
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- [`Default for std::iter::Copied`](https://doc.rust-lang.org/stable/std/iter/struct.Copied.html)
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- [`Default for std::iter::Enumerate`](https://doc.rust-lang.org/stable/std/iter/struct.Enumerate.html)
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- [`Default for std::iter::Flatten`](https://doc.rust-lang.org/stable/std/iter/struct.Flatten.html)
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- [`Default for std::iter::Fuse`](https://doc.rust-lang.org/stable/std/iter/struct.Fuse.html)
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- [`Default for std::iter::Rev`](https://doc.rust-lang.org/stable/std/iter/struct.Rev.html)
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- [`Default for std::slice::Iter`](https://doc.rust-lang.org/stable/std/slice/struct.Iter.html)
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- [`Default for std::slice::IterMut`](https://doc.rust-lang.org/stable/std/slice/struct.IterMut.html)
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- [`Rc::into_inner`](https://doc.rust-lang.org/stable/alloc/rc/struct.Rc.html#method.into_inner)
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- [`Arc::into_inner`](https://doc.rust-lang.org/stable/alloc/sync/struct.Arc.html#method.into_inner)
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- [`std::cell::OnceCell`](https://doc.rust-lang.org/stable/std/cell/struct.OnceCell.html)
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- [`Option::is_some_and`](https://doc.rust-lang.org/stable/std/option/enum.Option.html#method.is_some_and)
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- [`NonNull::slice_from_raw_parts`](https://doc.rust-lang.org/stable/std/ptr/struct.NonNull.html#method.slice_from_raw_parts)
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- [`Result::is_ok_and`](https://doc.rust-lang.org/stable/std/result/enum.Result.html#method.is_ok_and)
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- [`Result::is_err_and`](https://doc.rust-lang.org/stable/std/result/enum.Result.html#method.is_err_and)
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- [`std::sync::atomic::Atomic*::as_ptr`](https://doc.rust-lang.org/stable/std/sync/atomic/struct.AtomicU8.html#method.as_ptr)
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- [`std::io::IsTerminal`](https://doc.rust-lang.org/stable/std/io/trait.IsTerminal.html)
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- [`std::os::linux::net::SocketAddrExt`](https://doc.rust-lang.org/stable/std/os/linux/net/trait.SocketAddrExt.html)
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- [`std::os::unix::net::UnixDatagram::bind_addr`](https://doc.rust-lang.org/stable/std/os/unix/net/struct.UnixDatagram.html#method.bind_addr)
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- [`std::os::unix::net::UnixDatagram::connect_addr`](https://doc.rust-lang.org/stable/std/os/unix/net/struct.UnixDatagram.html#method.connect_addr)
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- [`std::os::unix::net::UnixDatagram::send_to_addr`](https://doc.rust-lang.org/stable/std/os/unix/net/struct.UnixDatagram.html#method.send_to_addr)
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- [`std::os::unix::net::UnixListener::bind_addr`](https://doc.rust-lang.org/stable/std/os/unix/net/struct.UnixListener.html#method.bind_addr)
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- [`std::path::Path::as_mut_os_str`](https://doc.rust-lang.org/stable/std/path/struct.Path.html#method.as_mut_os_str)
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- [`std::sync::OnceLock`](https://doc.rust-lang.org/stable/std/sync/struct.OnceLock.html)
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<a id="1.70.0-Cargo"></a>
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Cargo
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-----
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- [Add `CARGO_PKG_README`](https://github.com/rust-lang/cargo/pull/11645/)
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- [Make `sparse` the default protocol for crates.io](https://github.com/rust-lang/cargo/pull/11791/)
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- [Accurately show status when downgrading dependencies](https://github.com/rust-lang/cargo/pull/11839/)
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- [Use registry.default for login/logout](https://github.com/rust-lang/cargo/pull/11949/)
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- [Stabilize `cargo logout`](https://github.com/rust-lang/cargo/pull/11950/)
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<a id="1.70.0-Misc"></a>
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Misc
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----
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- [Stabilize rustdoc `--test-run-directory`](https://github.com/rust-lang/rust/pull/103682/)
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<a id="1.70.0-Compatibility-Notes"></a>
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Compatibility Notes
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-------------------
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- [Prevent stable `libtest` from supporting `-Zunstable-options`](https://github.com/rust-lang/rust/pull/109044/)
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- [Perform const and unsafe checking for expressions in `let _ = expr` position.](https://github.com/rust-lang/rust/pull/102256/)
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- [WebAssembly targets enable `sign-ext` and `mutable-globals` features in codegen](https://github.com/rust-lang/rust/issues/109807)
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This may cause incompatibility with older execution environments.
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- [Insert alignment checks for pointer dereferences as debug assertions](https://github.com/rust-lang/rust/pull/98112)
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This catches undefined behavior at runtime, and may cause existing code to fail.
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<a id="1.70.0-Internal-Changes"></a>
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Internal Changes
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----------------
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These changes do not affect any public interfaces of Rust, but they represent
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significant improvements to the performance or internals of rustc and related
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tools.
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- [Upgrade to LLVM 16](https://github.com/rust-lang/rust/pull/109474/)
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- [Use SipHash-1-3 instead of SipHash-2-4 for StableHasher](https://github.com/rust-lang/rust/pull/107925/)
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Version 1.69.0 (2023-04-20)
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Version 1.69.0 (2023-04-20)
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==========================
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==========================
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