Deprecation Notice: Composer\Package\Version\VersionParser::parseLinks is deprecated. Use \Composer\Package\Loader\Array.phar/src/Composer/Package/Version/VersionParser.php:226
This seems to be a composer issue, but it was not occurring previously. I did another update just last week. It does not seem to have any real effects on the the updates as 2.0.5 installed just fine.
"composer self-update" had no effect. Oh yeh, FYI, this is on windows 7.