(firstly - insert grin here)

Physicist bonus to shields increased to 30% (up from 10%)
Hacker/Raider bonuses increased to 30% (up from 20%)
Fixer bonus to hull increased to 30% (up from 20%)
Biologist bonus to max pop increased to 30% (up from 10%)
Explorer bonus to scanning increased to 20% (up from 10%)
Merchant bonus to cargo space increased to 30% (up from 20%)

hmm..
Excavator:
10% extra Artifact production (available for Aerlen, Konqul, and Vygoid)
Miner:
10% extra mineral production (available for Konqul, Human, and Vygoid)

Excavator's and miners are the only ones still at 10%?

heh

It is the most permanent benefit. Don't tell anyone. I have barely used it yet.

actually you should consider being explorer since you get hacked all day long

just so you know, the bonus that being a miner or excavator doesn't just increase the base production due to planetary structures, but also the other bonuses. So while compared to what you would be getting if you wern't a Miner you're getting a bonus 10%, when you compare it to what your structures are producing you're probably getting at least a 20% boost. If anything, it's all the other professions that were (and possibly still are) getting the short end of the stick as a result of Dan's player-friendly but logic-unfriendly calculations. (the correct math would yield much lower hourly production rates for everyone)