This release fixes [many security issues](
https://tails.boum.org/security/Numerous_security_holes_in_2.5/index.en.html) and users should upgrade as soon as possible.
# Changes
## New features
* We enabled [address space layout randomization](
https://en.wikipedia.org/wiki/address%20space%20layout%20randomization) in the Linux kernel (`kASLR`) to improve protection from buffer overflow attacks.
* We installed [`rngd`](
https://tails.boum.org/contribute/design/random/#rngd) to improve the entropy of the random numbers generated on computers that have a hardware random number generator.
## Upgrades and changes
* Upgrade _Tor_ to [0.2.8.7](
https://blog.torproject.org/blog/tor-0287-released-important-fixes).
* Upgrade _Tor Browser_ to [6.0.5](
https://blog.torproject.org/blog/tor-browser-605-released).
* Upgrade to Linux 4.6. This should improve the support for newer hardware (graphics, Wi-Fi, etc.)
* Upgrade _Icedove_ to [45.2.0](
https://www.mozilla.org/en-US/thunderbird/45.2.0/releasenotes/).
* Upgrade _Tor Birdy_ to [0.2.0](
https://gitweb.torproject.org/torbirdy.git/tree/ChangeLog?id=0.2.0).
* Upgrade _Electrum_ to [2.6.4](
https://github.com/spesmilo/electrum/blob/7dbb23e8c6acfa40795d861b192c205dbb4b4268/RELEASE-NOTES).
* Install firmware for Intel SST sound cards (`firmware-intel-sound`).
* Install firmware for Texas Instruments Wi-Fi interfaces (`firmware-ti-connectivity`).
* Remove `non-free` APT repositories. We documented how to [configure additional APT repositories](
https://tails.boum.org/doc/advanced_topics/additional_software/index.en.html#repository) using the persistent volume.
* Use a dedicated page as the homepage of _Tor Browser_ so we can customize it for our users.
* Set up the trigger for RAM erasure on shutdown earlier in the boot process. This should speed up shutdown and make RAM erasure more robust.
## Fixed problems
* Disable the automatic configuration of _Icedove_ when using [OAuth](
https://en.wikipedia.org/wiki/OAuth). This should fix the automatic configuration for GMail accounts. ([#11536](
https://labs.riseup.net/code/issues/11536))
* Make the _Disable all networking_ and _Tor bridge mode_ options of _Tails Greeter_ more robust. ([#11593](
https://labs.riseup.net/code/issues/11593))
For more details, read our [changelog](
https://git-tails.immerda.ch/tails/plain/debian/changelog).
# Known issues
* For some users memory wiping fails more often than in Tails 2.5, and for some users it fails less often. Please report any such changes to [#11786](
https://labs.riseup.net/code/issues/11786).
See the list of [long-standing issues](
https://tails.boum.org/support/known_issues/index.en.html).
# Get Tails 2.6
* To install, follow our [installation instructions](
https://tails.boum.org/install/index.en.html).
* To upgrade, an automatic upgrade is available from 2.5 to 2.6.
If you cannot do an automatic upgrade or if you fail to start after an automatic upgrade, please try to do a [manual upgrade](
https://tails.boum.org/upgrade/index.en.html).
* [Download Tails 2.6.](
https://tails.boum.org/install/download/index.en.html)
# What's coming up?
Tails 2.7 is [scheduled](
https://tails.boum.org/contribute/calendar/) for November 8.
Have a look at our [roadmap](
https://labs.riseup.net/code/projects/tails/roadmap) to see where we are heading to.
We need your help and there are many ways to [contribute to Tails](
https://tails.boum.org/contribute/index.en.html) ([donating](
https://tails.boum.org/contribute/how/donate/index.en.html) is only one of them). Come [talk to us](
https://tails.boum.org/about/contact/index.en.html#tails-dev)!
URL:
https://tails.boum.org/news/version_2.6/index.en.html
