Archive for the ‘Release’ Category.

Release of BlueZ 5.33

This BlueZ release contains mostly bugfixes, particularly in areas such as the audio plugin, GATT and OBEX. The main feature additions are in the the emulator code which received improvelents to LE features. There’s also a new tool for testing the recently released Eddystone protocol from Google.

bluez-5.33.tar.xz

Release of BlueZ 5.32

This is mostly a bug fix release rather than including many new features. The fixes fall in several different areas, including OPP, ATT and advertising (instance number handling in particular). There’s also a fix for handling a sudden disconnect when a connection setup process hasn’t yet completed. The one notable feature this release has is the ability to select between letting the stack handle ATT security elevation or doing the respective error handling in higher layers.

bluez-5.32.tar.xz

Release of BlueZ 5.31

It’s been well over two months since the last BlueZ release, so we’re quite overdue for another one. BlueZ 5.31 contains fixes to many different areas, including networking, GATT, HID, A2DP and AVRCP. Feature-wise we’ve got support for security flags for the GATT database, allowing fine-grained security level control for D-Bus clients using the GATT D-Bus API. We’ve also got a new experimental device discovery filter interface which allows filtering for a specific remote service, RSSI threshold or transport (LE vs. BR/EDR). Another new experimental interface is for LE advertising, which also brings the LE peripheral role closer to feature completion on a D-Bus level.

On the Android side, all PTS documents have been updated to cover the latest PTS 6.1 version.

bluez-5.31.tar.xz

Release of BlueZ 5.30

The highlight of this release is the completion of the GATT D-Bus APIs. We’ve now got both the client and server functionality in place, however it’s still behind the -E (–experimental) command line switch. The API is documented in doc/gatt-api.txt and there are several test tools for it in the tree (even bluetoothctl has support  for it). Another new (and still experimental) D-Bus API that debuts with this release is one for managing LE Advertising, i.e. acting in peripheral role. The API is documented in doc/advertising-api.txt.

Besides the new features, there are several fixes to AVCTP, AVDTP & AVRCP. There’s also a fix for C++ compiler compatibility with the library headers as well as a fix for device information not being stored in certain corner cases.

On the Android side a notable addition is support for the Android 5.1 GATT MTU exchange API.

bluez-5.30.tar.xz

Release of BlueZ 5.29

This is a comparatively large release with over a month and 475 commits since 5.28. There have been lots of fixes to the Android side, mainly to HFP & HSP, but also to GATT. The Android qualification documentation and results have also been updated for PTS version 6.0. Our internal GATT library (used both by ‘normal’ BlueZ as well as the Android version) received lots of updates for this release. The GATT client and server D-Bus APIs (which use the library) also reached completion, although they’re still behind the –experimental command line switch. The APIs are documented in doc/gatt-api.txt. Other notable changes are a fix for AVCTP key repeat timeout as well as added support for the Multi Profile Specification (MPS).

bluez-5.29.tar.xz

Release of BlueZ 5.28

Here’s the first BlueZ release in 2015. Most of the changes since the last one are bug fixes, but there’s actually quite many of them this time, including:

  • Fixes to GATT service discovery & probing
  • Fix for bearer selection with dual-mode devices
  • Fix potential crash when removing devices
  • Fix issue with incomplete names in EIR data
  • Fix parsing GATT name characteristics
  • Fix AVCTP long press & key repetition handling
  • Fixes for GATT notification handling

Besides bug fixes we’ve now also got more extensive unit tests for new GATT code as well as better HCI decoders in btmon for some less used 4.1 and 4.2 features. The hid2hci tool gained support for CSR 8510 A10 devices and the hex2hcd tool (for Broadcom firmware) received a complete rewrite with better command handling.

bluez-5.28.tar.xz

Release of BlueZ 5.27

Here comes the traditional x-mas release! BlueZ 5.27 consists mostly of bug fixes to areas such as GATT and mgmt (the interface through which bluetoothd talks to the kernel). The emulation framework has also received many new features, paving the way for more extensive test automation. On the Android side we’ve continued perfecting 5.0 (Lollipop) support, a notable addition being support for needed SELinux policies.

bluez-5.27.tar.xz

Release of BlueZ 5.26

This release is for the most part a bug-fix release with fixes in A2DP and OBEX related functionality, but there’s also an added features for get/set reports for HID over GATT as well as Phonebook Access Profile 1.2 support

On the Android side the 5.0 (Lollipop) support is now starting to be fairly mature with full PTS test runs either with PTS 5.3 or 6.0.

The Bluetooth 4.2 specification went public in early December and BlueZ 5.26 is the first release with support for its features. Perhaps the most notable one of these is Low Energy Secure Connections which will require a 3.19 or newer kernel. This feature brings LE pairing to the same level of security as it has been for BR/EDR. LE SC also brings along with it so-called cross-transport pairing, which means that you only need to pair once over LE or BR/EDR to get the necessary keys for both transports between two dual-mode devices.

bluez-5.26.tar.xz