Fix documentation
#6895 - `Zend\Log\Processor\Backtrace#getBacktrace()` returns an `array` of `array`s
Merge branch 'hotfix/#6895-correct-log-processor-get-backtrace-return-type'

Close #6895
Fixes CS : unused use
Merge branch 'cs/#6629-remove-unused-code'

Close #6629
Fixes Zend\Json\Json's composer.json containing single backslash
Merge branch 'hotfix/#6891-#6778-composer-json-string-escaping'

Close #6891
Fix documentation typo
Remove inconsistent see tag
Reproducing test case for #6263 #6518
Workaround for #6263, which is related to #4482
Additional unit test to assert behavior of extract()
Refactor Collection::extract to reduce branch depth & add documentation
Merge branch 'hotfix/#6880-form-element-can-be-added-to-a-fieldset'

Close #6880
Close #6518
Close #6263
[Http] Add body support for DELETE/OPTIONS request
#6492 - simplified HTTP method name checks, removed duplicate/redundant `elseif` statements
#6492 - using `in_array()` instead of large boolean expression
Merge branch 'hotfix/#6492-support-delete-post-request-body'

Close #6492
[Http] Rationalize timeout behavior between adapters
Merge branch 'feature/#6526-millisecond-curl-timeout-usage'

Close #6526