The fourth alpha release of the installer for Debian 9 "Stretch" is now available

Important changes in this release of the installer
==================================================

* Full CD sets were removed, as announced earlier in the Summary of
the Debian CD BoF at DebConf15:
https://lists.debian.org/debian-devel-announce/2015/09/msg00004.html
* Almost all alternative options for CD#1 were removed, since the
installer gives en easy choice of desktop selection during task
selection, since Jessie. Only Xfce CD#1 remains as a single-CD
desktop system.


Improvements in this release
============================

* at-spi2-atk:
- Enable accessibility by default in gtk2 applications.
* at-spi2-core:
- Enable accessibility in Qt4 and Qt5 applications when the kde
desktop is configured to start the screen reader.
* debian-installer:
- Restore non-gtk speech synthesis entries, but only where they
were useful and used.
- Bump linux kernel version from 4.1.0-2 to 4.2.0-1.
* finish-install:
- Enable screen reader in KDE (#707196).
- Make sure /etc/mtab is a symlink to /proc/self/mounts
(#802184, #802187).
* netcfg:
- Fix is_layer3_qeth on s390x to avoid bailing out if the network
driver is not qeth (#798376).
* os-prober:
- Adjust extended dos partition support for recent versions of
blkid/util-linux (#735169).
- Add support for Windows 10, otherwise reported as Windows
Recovery Environment (#801278).
* preseed:
- Rectify preseed_unspecified_at_boot test (#799361).
* util-linux:
- Build static binaries for fdisk-udeb and util-linux-udeb
(#798347).
* zipl-installer:
- Use mapdevfs to find the device of the root filesystem.


Hardware support changes
========================

* flash-kernel:
- Add machine db entries for various sunxi-based systems which are
(at least partially) supported in linux-image-4.2.0.
* linux:
- [mips*el/loongson-3] udeb: Add fb-modules containing radeon
driver (#776274).
- [mips*] Build ext4 as module. Add core-modules and ext4-modules
udeb.
- [mips*/octeon] Enable CAVIUM_CN63XXP1 (#800595).
- [mips*/octeon] Enable MMC, MMC_BLOCK, OCTEON_MMC and other
drivers as modules (#800594).
- ath10k: add qca6164 support (#800703).
* u-boot:
- Updated udoo patches and debian/targets, upstream switched to a
single target that supports both udoo quad and dual.
- u-boot-sunxi: Add Linksprite_pcDuino target (#799035).


Localization status
===================

* 75 languages are supported in this release.
* Full translation for 15 of them.


Known bugs in this release
==========================

* GNOME may fail to start in some virtual machine setup.
* Booting with grub from an XFS /boot partition fails (#802138).

See the errata[2] for details and a full list of known issues.


Feedback for this release
=========================

We need your help to find bugs and further improve the installer,
so please try it. Installer CDs, other media and everything else you
will need are available at our web site[3].


Thanks
======

The Debian Installer team thanks everybody who has contributed to this
release.


1. http://wiki.debian.org/DebianInstaller/Team
2. http://www.debian.org/devel/debian-installer/errata
3. http://www.debian.org/devel/debian-installer

  Debian 9 Stretch Alpha 4 Installer