Where: In game after creating a halfling and selecting Athasian Halfling (ECL1) as the subrace and selecting any 2 backgrounds.
When: Tested last night BST evening time on two characters, happened both times.
What: On the subrace resource
here it lists Athasian Halflings as getting +4 dex and +2 wis (A total of +2 str, +4 dex and +2 wis total including base halfling modifiers, this is currently only +2 str, +2 dex and +2 wis, taking into account base halfling mods again)
Recreate: Make an Athasian Halfling on the test server or RP server and check the stat changes.
Ideas: The subrace resouce is likely out of date due to the update "Curfew."
here but the changes made were not listed.