Total issues resolved: 15

• 2429: Added StatusCode class thanks to @Dmitry-Kucher
• 2431: Bug fix: Reset Route arguments for each call thanks to @mathmarques
• 2434: 308 is also a redirect code thanks to @sjinks
• 2439: Update docbock for Request::getParam() second param's type thanks to @hhovakimyan
• 2441: Bug fix: Replace header when sending first one of each header thanks to @akrabat
• 2447: array_merge was re-indexing arrays with numerical index thanks to @yolcuiskender
• 2448: Fix typo for testRenderHtmlExceptionOrErrorTypeChecksParameter thanks to @minchao
• 2449: Bug Fix: Make string comparison more strict in Slim\Http\Uri class thanks to @nyamsprod
• 2457: Upgrade .editorconfig thanks to @voyula
• 2463: Update composer.json thanks to @voyula
• 2466: Bug fix: Replace incorrect sprintf placeholders with default placeholders thanks to @llvdl
• 2471: Bug fix: Replace remaining incorrect sprintf placeholders thanks to @llvdl
• 2484: Allow chaining in Route::setOutputBuffering thanks to @piotr-cz
• 2485: Add tests for the return value of Route::setArgument and Route::setArguments methods thanks to @piotr-cz
• 2487: Bug Fix: Pick port defaults depending if the host was in HTTP_HOST or SERVER thanks to @lornajane