<code>better_optimisation</code></a> branch.
The changes were felt worth merging into Outcome as v2.2.0, the first major version release
since Outcome entered Boost in early 2019. To give enough time to sign post to users that these
source incompatible changes were coming, all of 2020 was given over to announcement of the
upcoming merge of the breaking v2.2 branch into master branch in early 2021.</p>

<p>In terms of codegen benefits for proposed <code>std::error</code> based code (i.e. code using
<a href="