Hi,

country.ini

"East Timor" is renamed to Timor-Leste and has the new code "TL" (instead of TP) as of 2002, eight other country's have been renamed / added since then.

Sources:
http://en.wikipedia.org/wiki/ISO_3166-1_alpha-2
http://en.wikipedia.org/wiki/ISO_3166-2:TL

Feed of all changes can also be found here(including many other minor corrections):
http://www.iso.org/iso/country_codes/check_what_s_new.htm