Version 22 (modified by Jakub Jermář, 8 years ago) ( diff )

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Release Notes for HelenOS mainline

Note: This document is a draft describing a future HelenOS release and is subject to change. The software described here has not been released yet. To get these latest and greatest features now, check out our Bazaar mainline. (But you will also get the latest bugs).

HelenOS version (codename) was released on date.

This document contains a summary of changes made to HelenOS since release previous release.

Special Notes for this Release

Features Introduced in This Release



Services and Drivers

  • USB support revamped
    • Added support for USB 2.0
    • uhcirh driver removed as its functionality moved to uhci driver
  • Intel HD Audio recording support (experimental)
  • Completely new, unified partitioning architecture
    • Partitions are now enumerated automatically
    • fdisk utility replaces hdisk
      • vastly improved user experience
      • all changes are applied to running system state

File Systems


  • Transport layer API was completely redesigned/reimplemented
    • Improved connection stability
    • No longer imitating BSD sockets



  • Libmath expanded to cover all C89 math functions
    • only generic/non-optimized implementation
    • plus single-precision variants from C99


  • XCW (Cross Compiler Wrapper) tools
    • can be used by out-of-tree application to cross-compile for HelenOS
    • the application is written against native HelenOS (non-libposix) environment
    • the application's build system is aware it's cross-compiling for HelenOS

Regressions in This Release

  • For the list of regressions since the previous release, see this report.
  • Notable regressions

Fixed Logged Bugs & Enhancements

  • For the list of all logged defects fixed in this release, see this report.
  • For the list of all logged enhancements integrated in this release, see this report.

Known Bugs

  • For the list of known bugs still not fixed in this release, see this report.
  • For the list of all open tickets, see this report.

Attachments (2)

  • edit.png (4.0 KB ) - added by Jiri Svoboda 3 years ago. Text Editor ported to UI library (with menu bar and dialog window)
  • nav.png (13.9 KB ) - added by Jiri Svoboda 3 years ago. Navigator (HelenOS file manager)

Download all attachments as: .zip

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