error during update in 2.6.5+ you get

Unable to fetch available updates data - unexpected cURL error.

version i nfo:

$plugin->version = 2014100801; // The current module version (Date: YYYYMMDDXX)
$plugin->maturity = MATURITY_STABLE; // Maturity level
$plugin->component = 'qformat_wordtable'; // Plugin name
$plugin->release = '2.10.1 (Build: 20141008)'; // The current module release in human-readable form (x.y)
$plugin->requires = 2011070100.03; // Requires Moodle 2.1 or later
$plugin->cron = 0; // Period for cron to check this module (secs)