The following updates has been released for CentOS:

CEEA-2016:1982 CentOS 5 tzdata Enhancement Update
CEEA-2016:1982 CentOS 6 tzdata Enhancement Update
CEEA-2016:1982 CentOS 7 tzdata Enhancement Update
CESA-2016:1985 Important CentOS 5 thunderbird Security Update
CESA-2016:1985 Important CentOS 6 thunderbird Security Update
CESA-2016:1985 Important CentOS 7 thunderbird Security Update

CEEA-2016:1982 CentOS 5 tzdata Enhancement Update

CentOS Errata and Enhancement Advisory 2016:1982

Upstream details at : https://rhn.redhat.com/errata/RHEA-2016-1982.html

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

i386:
7d0644c0162a3df1948f40927882f0fad8d52ed5f5453e51cde12cf2c125a486 tzdata-2016g-2.el5.i386.rpm
0d42fd29b2c0928150d2c93df6cc77d9702d3c60328fe3ed377b8c82dab769cb tzdata-java-2016g-2.el5.i386.rpm

x86_64:
70aa83a0651d72a3a27d71a38b0373a6669d5e7530649415caba3dee9ad168ea tzdata-2016g-2.el5.x86_64.rpm
2305fcca0a4b75d26a78b8cade0f72181cbd47ada43ff1bda537eb765174d45e tzdata-java-2016g-2.el5.x86_64.rpm

Source:
35b6a553ba1b9e07da088716f236a61f518c425eaa539a83f1e990775289e326 tzdata-2016g-2.el5.src.rpm

CEEA-2016:1982 CentOS 6 tzdata Enhancement Update

CentOS Errata and Enhancement Advisory 2016:1982

Upstream details at : https://rhn.redhat.com/errata/RHEA-2016-1982.html

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

i386:
2379e728e087b59dbccce433fbf98f7ba0e77ce4b8bcae5f31d18983567436f4 tzdata-2016g-2.el6.noarch.rpm
48ea1f5e84415c8d28f72b48f609f6ad52f4c95973777bbbb6172acb3a6c7a2a tzdata-java-2016g-2.el6.noarch.rpm

x86_64:
2379e728e087b59dbccce433fbf98f7ba0e77ce4b8bcae5f31d18983567436f4 tzdata-2016g-2.el6.noarch.rpm
48ea1f5e84415c8d28f72b48f609f6ad52f4c95973777bbbb6172acb3a6c7a2a tzdata-java-2016g-2.el6.noarch.rpm

Source:
50bf16e3c0fcf85b3ca029ef052ddc202a5a39ea4e559e30c51506e75cc374e2 tzdata-2016g-2.el6.src.rpm

CEEA-2016:1982 CentOS 7 tzdata Enhancement Update

CentOS Errata and Enhancement Advisory 2016:1982

Upstream details at : https://rhn.redhat.com/errata/RHEA-2016-1982.html

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

x86_64:
7762ff6147da85f50d4b1cd9f55bab53c3ec2d2c8b05dba4d4a10803d7b36af4 tzdata-2016g-2.el7.noarch.rpm
6ed58cf899ff8f57c619e9361edaf1878413e95561d4b163f82505b6349ebb1e tzdata-java-2016g-2.el7.noarch.rpm

Source:
4536dcd6b004ea9d6d64b68106489cb70f80b6eda8dffc1cd1db8c3323f9e960 tzdata-2016g-2.el7.src.rpm

CESA-2016:1985 Important CentOS 5 thunderbird Security Update

CentOS Errata and Security Advisory 2016:1985 Important

Upstream details at : https://rhn.redhat.com/errata/RHSA-2016-1985.html

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

i386:
ca033ccd5ee9481912176ed85e89550e6eb8dd1a69d7114d4551d693bf712c64 thunderbird-45.4.0-1.el5.centos.i386.rpm

x86_64:
fa88d0b434c19b32328932486956885d9c3e9a33887d920b72766aa2f13d2eb4 thunderbird-45.4.0-1.el5.centos.x86_64.rpm

Source:
828a8cf2f6237a9069002e51d55639df5adb7d1a2483decea83d02b9bc4a16e2 thunderbird-45.4.0-1.el5.centos.src.rpm

CESA-2016:1985 Important CentOS 6 thunderbird Security Update

CentOS Errata and Security Advisory 2016:1985 Important

Upstream details at : https://rhn.redhat.com/errata/RHSA-2016-1985.html

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

i386:
ccc6667913354f615a25b8d6054f25a0812768610144ae83427bb05c8c5865bd thunderbird-45.4.0-1.el6.centos.i686.rpm

x86_64:
ca8edbed30392c408ea585f72829f07d0158efe79a08cbe83afd917f6fe2340a thunderbird-45.4.0-1.el6.centos.x86_64.rpm

Source:
549ab1e597ef65e586984fe20636ab34034fff220d29030b798cabe66dc238e4 thunderbird-45.4.0-1.el6.centos.src.rpm

CESA-2016:1985 Important CentOS 7 thunderbird Security Update

CentOS Errata and Security Advisory 2016:1985 Important

Upstream details at : https://rhn.redhat.com/errata/RHSA-2016-1985.html

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

x86_64:
41b3e1b5237659bf4393463855d949ef6616a007bb2a2d93c4bd880aa2c05a1d thunderbird-45.4.0-1.el7.centos.x86_64.rpm

Source:
da01e24e9c16a1bd2b94117f84b66cf158c9b9b0e2802fc3d3f27c7e1c6f8325 thunderbird-45.4.0-1.el7.centos.src.rpm