### 3.10.1 / 2020-12-27
[Full Changelog](http://github.com/rspec/rspec-core/compare/v3.10.0...v3.10.1)
Bug fixes:
* RSpec warning output was missing deprecations from Ruby, these are now included.
(Jon Rowe, #2811)
### 3.10.0 / 2020-10-30
[Full Changelog](http://github.com/rspec/rspec-core/compare/v3.9.3...v3.10.0)
Enhancements:
* Memoize `RSpec::Core::Formatters::ExceptionPresenter#exception_lines` to improve performance
with slow exception messages. (Maxime Lapointe, #2743)
* Add configuration for an error exit code (to disambiguate errored builds from failed builds
by exit status). (Dana Sherson, #2749)
# 3.9.3 / 2020-09-30
[Full Changelog](http://github.com/rspec/rspec-core/compare/v3.9.2...v3.9.3)
Bug Fixes:
* Declare `ruby2_keywords` on `method_missing` for other gems. (Jon Rowe, #2731)
* Ensure custom error codes are returned from bisect runs. (Jon Rowe, #2732)
* Ensure `RSpec::Core::Configuration` predicate config methods return booleans.
(Marc-André Lafortune, #2736)
* Prevent `rspec --bisect` from generating zombie processes while executing
bisect runs. (Benoit Tigeot, Jon Rowe, #2739)
* Predicates for pending examples, (in `RSpec::Core::Example`, `#pending?`, `#skipped?` and
`#pending_fixed?`) now return boolean values rather than truthy values.
(Marc-André Lafortune, #2756, #2758)
* Exceptions which have a message which cannot be cast to a string will no longer
cause a crash. (Jon Rowe, #2761)
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