Hello, It appears cache1.lax.icann.org is still returning the previous 2015f tzdata file when requesting the tzdata-latest.tar.gz from www.iana.org. I have been receiving 2 different responses for the tzdata-latest.tar.gz depending on which icann.org server handles the request. cache1.lax.icann.org is responding with the 2015f tzdata file and "cache1.lax.icann.org" is returning the 2015g. Below are network traces which show the difference in X-Cache-Host , Content-Length and Last-Modified response headers. Opening the Makefile confirms the different versions. Thank you, David Kyes cache1.lax.icann.org =========================== GET https://www.iana.org/time-zones/repository/tzdata-latest.tar.gz HTTP/1.1 User-Agent: Fiddler Host: www.iana.org HTTP/1.1 200 OK Last-Modified: Tue, 11 Aug 2015 02:02:03 GMT Vary: Accept-Encoding content-type: application/x-gzip Cache-Control: public, max-age=3600 Content-Length: 298815 Accept-Ranges: bytes Date: Sat, 10 Oct 2015 01:32:42 GMT Connection: keep-alive Server: Apache X-Cache-Host: cache1.lax.icann.org X-Cache-Hits: 51399 ========================== Makefile VERSION= 2015f ========================== ========================== cache2.lax.icann.org ========================== GET https://www.iana.org/time-zones/repository/tzdata-latest.tar.gz HTTP/1.1 User-Agent: Fiddler Host: www.iana.org HTTP/1.1 200 OK Last-Modified: Thu, 01 Oct 2015 15:09:07 GMT Vary: Accept-Encoding content-type: application/x-gzip content-encoding: identity Cache-Control: public, max-age=3600 Content-Length: 300363 Accept-Ranges: bytes Date: Sat, 10 Oct 2015 00:09:21 GMT Connection: keep-alive Server: Apache X-Cache-Host: cache2.lax.icann.org X-Cache-Hits: 72168 ========================== Makefile VERSION= 2015g