Change over to E-Visa system.
A number of consulates around the region are changing over to the e-visa system as of 8th of October. This means that you will no longer be able to apply in person from then on.
Also be aware that some will suspend visa processing earlier to prepare for the change over. If you are heading over to get a visa it may be wise to check directly with them on their processing times for walk in applications.
TLDR : Answer Summary
As of October 8th, several Thai consulates are transitioning to an e-visa system, eliminating the option for in-person visa applications. Some consulates may stop processing visas earlier to facilitate this change, so it's advisable for travelers to check the current processing times. There are questions from the community regarding whether this change affects all nationalities and the status of visa-on-arrival options for certain passport holders.