The following method names have been changed for reasons of consistency. * /access-tokens/{accessTokens}/read is now [/access-tokens/{accessTokens}][1] * /filter/create is now [/filters/create][2] * /filter/{filters} is now [/filters/{filters}][3] The old methods are still available, and in fact just proxy to the new names. I strongly encourage all consumers to migrate to the new names as soon as possible, as the proxies will be removed *eventually*. I strongly suspect these will be the last top-level method changes before V2.0 is completely frozen. [1]: http://api.stackexchange.com/docs/read-access-tokens [2]: http://api.stackexchange.com/docs/create-filter [3]: http://api.stackexchange.com/docs/read-filter