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6 changes: 3 additions & 3 deletions RELEASES.md
Original file line number Diff line number Diff line change
Expand Up @@ -140,9 +140,9 @@ Cargo
Performance
-----------

* [During type unification, the complexity of comparing variables for
equivalance was reduced from `O(n!)` to `O(n)`][1.9tu]. This leads
to major compile-time improvements in some scenarios.
* [The time complexity of comparing variables for equivalence during type
unification is reduced from _O_(_n_!) to _O_(_n_)][1.9tu]. This leads
to major compilation time improvement in some scenarios.
* [`ToString` is specialized for `str`, giving it the same performance
as `to_owned`][1.9ts].
* [Spawning processes with `Command::output` no longer creates extra
Expand Down