1.4 release notes

[brson]

Rendered

More highlights would be good. I intend to go through and hyperlink all the APIs still.

[rust-highfive]

r? @nikomatsakis

(rust_highfive has picked a reviewer for you, use r? to override)

[steveklabnik]

i guess this is so long, a sub-list would just make the post really long...

[brson]

I'm porting this to 1.4 as is.

[alexcrichton]

r=me when this is ready

[bluss]

Could mention that the RFC 1214 changes had a borrowck improvement (stricter) to enable safe and sound scoped threads (rfc link); crossbeam and scoped threadpool depend on this.

[bluss]

Could say std::fmt::Write to disambiguate here.

[brson]

Ah, I didn't realize. I'll clarify.

[hanna-kruppe]

Might want to mention #27307 (float parsing rewrite). Something like:

str::parse no longer introduces avoidable rounding error when parsing floating point numbers. Together with earlier changes to float formatting/output, "round trips" like f.to_string().parse() now preserve the value of f exactly. Additionally, leading plus signs are now accepted.

The leading plus thing is only mentioned because it might be a breaking change (although minor) for some users, if the analogous change for integer parsing (currently in nightly) is any indication.

[wesleywiser]

"of with" doesn't make sense

[brson]

r=acrichto

[brson]

Thanks for the reviews @bluss@wesleywiser@rkruppe. Updated.

[bluss]

should be references to to be precise. An example is &Option<T>.

[kud1ing]

Could you please also put in the date 2015-10-29?

[brson]

@bors r=alexcrichton

[bors]

📌 Commit 018c468 has been approved by alexcrichton

[brson]

@bors r=alexcrichton

[bors]

📌 Commit 6b1de25 has been approved by alexcrichton

[bors]

⌛ Testing commit 6b1de25 with merge 7e4bd74...

[alexcrichton]

@bors: force

[alexcrichton]

@bors: retry force rollup