In the current local administrative data there are two files which list the upgrades in last year.
- สรุปการยกฐานะ อปท. ปีงบประมาณ 2552, covering fiscal year 2009 from October 1 2008 to September 30 2009. It includes 1 subdistrict municipality upgraded to a town, and 59 TAO to subdistrict municipalities.
- สรุปการยกฐานะ อปท. ปีงบประมาณ 2553 covers the first three months of fiscal year 2010, from October 1 till December 15. It contains 319 TAO upgrades to subdistrict municipalities.
Already from the case of the upgrade of Ko Samui, which was set to become a city by the board but then actually became only a town, I knew that the board does not have the final word on the municipality upgrades, but it is surprising to see so many changes taking effect on later days than the originally set date. Just sad that these final steps aren't documented on the web, so I only have the annual lists to confirm what I expect from the board meetings.