Release Notes for HelenOS 0.12.1

HelenOS version (codename) was released on date.

This document contains a summary of changes made to HelenOS since release 0.11.2.

Special Notes for this Release

Features Introduced in This Release

General

• HelenOS build for 486 CPU works correctly again
• HelenOS works correctly in Qemu -M isapc

Kernel

• Fixed ia32 kernel deadlocking during boot if lazy FPU context switching is disabled during build
• Fixed km_unmap_unaligned() trying to unmap the entire kernel ASID - fixes kernel test mapping1 on sparc64

User Interface

• Added the Task Bar (a panel containing a clock and buttons for switching the active window)

• Menu can be navigated more quickly using the keyboard thanks to accelerator keys support

• Added scrollbars

• Resizable windows can now be maximized/unmaximized (e.g. UI Demo)

• File dialogs now actually allow browsing files

• Window captions are abbreviated with … if they are too long

Services and Drivers

• Graphical mode is now used for Qemu/sun4u thanks to improved driver support
• HelenOS in Qemu -M isapc now correctly falls back to EGA text mode
  • Correctly detect that the Qemu SuperVGA adapter does not support linear frame buffer in this case
• Fixed graphical console not displaying correctly in resolutions greater than 1024x768
• Fixed arrow keys not working in VirtualBox
• Fixed Intel HD audio stuttering in VirtualBox
• Fixed audio server (Hound) crashing at the end of playback
• Fixed some platforms shipping all (i.e. even irrelevant) drivers

File Systems

Networking

• Fixed netecho failing to send any messages
• Fixed two issues in DHCP client that prevented it from working properly in VirtualBox

Applications

• Barber now has a proper window caption (which is rendered abbreviated)

Libraries

• User interface library (libui)
  • Fixed two use-after-free bug when closing a window / dialog that could lead to random application crashes
  • Added File List control (used in file dialog)
• Text rendering library (libgfxfont)
  • gfx_puttext() can now abbreviate text that does not fit within the specified width with …

Miscellaneous

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.