Yocto ProjectのWebSiteには、情報が上がっておりませんが、
2.1.3が7/10付けでリリースのアナウンスが行われています。

リリース版のURLは以下となります。
http://downloads.yoctoproject.org/releases/yocto/yocto-2.1.3/poky-krogot...

更新内容は、以下となります。
---------------
Security Fixes
---------------
openssl: Security fix CVE-2016-2177
tiff: Security fix CVE-2016-9538
tiff: Security fix CVE-2016-9535
tiff: Security fix CVE-2016-9539
tiff: Security fix CVE-2016-9540
tiff: Security fix CVE-2016-3632
tiff: Security fix CVE-2016-3658
expat: CVE-2012-6702, CVE-2016-5300
openssl: Security fix CVE-2016-8610
tiff: Security fix CVE-2016-3622
tiff: Security fix CVE-2016-3623
tiff: Security fix CVE-2016-3991
tiff: Security fix CVE-2016-3990
tiff: Security fix CVE-2016-3945
curl: CVE-2016-8625
curl: CVE-2016-8624
curl: CVE-2016-8623
curl: CVE-2016-8622
curl: CVE-2016-8621
curl: CVE-2016-8620
curl: CVE-2016-8619
curl: CVE-2016-8618
curl: CVE-2016-8617
curl: CVE-2016-8616
curl: CVE-2016-8615
qemu: Security fix CVE-2016-4952
qemu: Security fix CVE-2016-4439

---------------
Fixes
---------------
initrdscripts/init-install*: Add rootwait when installing to USB devices
bitbake: siggen: Make calc_taskhash match get_taskhash for file checksums
package_ipk: Clean up Source entry in ipk packages
documentation: Updated all manual revision tables to June, 2017
oeqa/selftest/recipetool: actually fix create_github test
build-appliance-image: Update to krogoth head revision
grub2: enforce -no-pie if supported by compiler
build-appliance-image: Update to krogoth head revision
poky: Update version to 2.1.3
rootfs_rpm: Increase rootfs size
oeqa/selftest: lock down Meson git revision for reliability
oeqa/runtime/rpm: use su instead of sudo
libunwind: Fix build race conflict with gcc and musl
selftest/recipetool: Fix test for krogoth
webkitgtk: fix racy double build of WebKit2-4.0.gir
cryptodev-linux: update SRC_URI
pseudo: Work around issues with glibc 2.24
pseudo: obey our LDFLAGS
openssl.inc: avoid random ptest failures
openssl: fix do_configure error when cwd is not in @INC
openssl: prevent warnings from openssl-c_rehash.sh
openssl: Ensure SSL certificates are stored on sysconfdir
openssl: Add Shell-Script based c_rehash utility
openssl: fix add missing dependencies building for test directory
openssl: fix add missing `make depend` command before `make` library
openssl: Fix MIPS64be and add MIPS64le
mesa: update SRC_URI
libpng -lsb: update SRC_URI
libxslt: update SRC_URI
libpng: update SRC_URI back to SF
libpcre: update SRC_URI
zlib: update SRC_URI to fix fetching
populate_sdk_ext: whitelist do_package tasks
populate_sdk_ext: fix working with uninative sstate
oeqa: fix hasPackage, add hasPackageMatch
tzdata: update to 2016i
tzcode: update to 2016i
tzdata: Update to 2016h
tzcode-native: update to 2016h
weston: Add no-input-device patch to 1.9.0.
gstreamer1.0-libav: Add 'valgrind' config option
nss: Disable warning on deprecated API usage
binutils: apply RPATH fixes from our libtool patches
binutils: fix typo in libtool patch
classes/native: set lt_cv_sys_lib_dlsearch_path_spec
classes/cross: set lt_cv_sys_lib_dlsearch_path_spec
rm_work: Ensure we don't remove sigbasedata files
sstate: Ensure we don't remove sigbasedata files
documentation: Updated YP set for 2.1.3 Krogoth release in May '17
bitbake: lib/bb/checksum: avoid exception on broken symlinks
bitbake: fetch2/wget: attempt checkstatus again if it fails
bitbake: siggen: Ensure taskhash mismatches don't override existing data
bitbake: siggen: Pass basehash to worker processes and sanity check reparsing result
bitbake: build: Ensure we preserve sigbasedata files as well as sigdata ones
Revert "file: update SRCREV for 5.25 to fix fetch fail on missing commit"
file: update SRCREV for 5.25 to fix fetch fail on missing commit
bitbake: bitbake: toaster: settings set ALLOWED_HOSTS to * in debug mode
dev-manual: Fixed typo for "${INC_PR}.0"
documentation: Updated manual rev tables for Dec 2016 2.1.2 release