STAR ALLIANCE:

Air New Zealand:

Christchurch-Mount Cook-Queenstown effective December 27, 2012 to January 27, 2013 will offer 3x/week service.

Turkish:

Istanbul-Karachi-Dhaka effective March 25 is canceled.
Istanbul-Karchi effective March 25 will begin 4x/week service.
Istanbul-Dhaka effective March 25 will begin 4x/week service.

ONEWORLD:

Iberia:

Madrid-Riga effective July 7 to September 29 will operate 2x/week service (Weekends only)

Cathay Pacific:

Hong Kong-Bangkok effective March 25 increases from 5x/day to 6x/day.
Hong Kong-Kuala Lumpur effective March 25 increase from 3x/day to 4x/day.
Hong Kong-Nagoya effective March 25 increases from 10x/week to 14x/week.
Hong Kong-Penang effective March 25 increases from 1x/day to 10x/week.
Hong Kong-Singapore effective March 25 increases from 42x/week to 47x/week.
Hong Kong-Taipei effective March 25 increases from 101x/week to 111x/week

Previous Star Alliance Updates: ONE TWO THREE

Previous oneworld Updates: ONE TWO THREE

source: airlineroute.net