here are the best talks at DevConf 2015 (based on voting questionnaire published at www.devconf.cz)
The best 4 presentations are
1. shellshock! (Huzaifa Sidhpurwala)
2. Docker Security (Dan Walsh)
3-4. Pushing Puppet (to it's limit) (James Shubin (purpleidea))
3-4. Write Yourself an Annotation Processor (Ladislav Thon)
All these talks are recorded. This year we've managed to record an amazing number of 138 sessions - all available on RedHatCzech Youtube Channel.