Do you wanna check your Composer version? It's easy. Open your Terminal/CommandPrompt. and type composer then press Enter. now you can check current version of your Composer. How to update Composer itself? Then if you want to update Composer, composer self-update and press Enter. That's all. Now you can check new version. In this image, my Composer updated to 1.10.15(stable). Also if you want to make the composer back to the previous version, use the command composer self-update --rollback Just in case, if you got error or any problem with new version. You are using an outdated version ...
