The following tzdata updates has been released for CentOS 5-7:

CEEA-2015:0855 CentOS 5 tzdata Enhancement Update
CEEA-2015:0855 CentOS 6 tzdata Enhancement Update
CEEA-2015:0855 CentOS 7 tzdata Enhancement Update

CEEA-2015:0855 CentOS 5 tzdata Enhancement Update

CentOS Errata and Enhancement Advisory 2015:0855

Upstream details at : https://rhn.redhat.com/errata/RHEA-2015-0855.html

The following updated files have been uploaded and are currently
syncing to the mirrors: ( sha256sum Filename )

i386:
977bbb795cbd1777d0ac5dd68558905896f5c31a7717ab1737cdcf36408fcfc3 tzdata-2015c-1.el5.i386.rpm
fae2f0b57d69a7974240b07974ccdb5336856d8d827a02f72c9dd71e17875d31 tzdata-java-2015c-1.el5.i386.rpm

x86_64:
d20ddd1890d3df6be0192c86b67a46684e32835f7a15b2200e03a44fd169a9d4 tzdata-2015c-1.el5.x86_64.rpm
f4703acadb371aac5fc0a189c0c3c396fb12ace5b7ced929851a4a725b4b48ab tzdata-java-2015c-1.el5.x86_64.rpm

Source:
d791ea449383c825d38bc327e1fa60cd5c4a351fe5ae1e895f42682a5dadcfdc tzdata-2015c-1.el5.src.rpm

CEEA-2015:0855 CentOS 6 tzdata Enhancement Update

CentOS Errata and Enhancement Advisory 2015:0855

Upstream details at : https://rhn.redhat.com/errata/RHEA-2015-0855.html

The following updated files have been uploaded and are currently
syncing to the mirrors: ( sha256sum Filename )

i386:
bb11ad2b0d763dc63ba347692f80597749c2e5d609c0a220773281cc646165d2 tzdata-2015c-2.el6.noarch.rpm
1cd31efa0e7c701059f2788a919edebffad88712cf14daa04b53ce5b181d77cf tzdata-java-2015c-2.el6.noarch.rpm

x86_64:
bb11ad2b0d763dc63ba347692f80597749c2e5d609c0a220773281cc646165d2 tzdata-2015c-2.el6.noarch.rpm
1cd31efa0e7c701059f2788a919edebffad88712cf14daa04b53ce5b181d77cf tzdata-java-2015c-2.el6.noarch.rpm

Source:
a8a236e0677ee108c9d3179b4358a3694c587e7904b44853a4ee9ef047b712a1 tzdata-2015c-2.el6.src.rpm

CEEA-2015:0855 CentOS 7 tzdata Enhancement Update

CentOS Errata and Enhancement Advisory 2015:0855

Upstream details at : https://rhn.redhat.com/errata/RHEA-2015-0855.html

The following updated files have been uploaded and are currently
syncing to the mirrors: ( sha256sum Filename )

x86_64:
1bf3cd5dd8aee374357aa15a820aa14dfd5c23a5de3e33c48387cbddb8d15085 tzdata-2015c-1.el7.noarch.rpm
f14b8c39cce479da2d529cc4e32499184ff1b9fe894389952599f18b83c6c84f tzdata-java-2015c-1.el7.noarch.rpm

Source:
151b89b427d7db50d39c1bb038a680305e9c0ec3789e0c8931e2942cffb8255c tzdata-2015c-1.el7.src.rpm