= Release Notes for HelenOS 0.9.1 = HelenOS ''0.9.1 (Armonia) '' was released on ''May 11, 2019''. This document contains a summary of changes made to HelenOS since release [http://www.helenos.org/wiki/ReleaseNotes/0.8.0 0.8.0]. == Special Notes for this Release == This release brings a small change in the version numbering scheme. Since there are two releases per year, the first one will be 0.<''YEAR''-2010>.1 and the second one will be 0.<''YEAR''-2010>.2. Note that the agile bi-annual release cycle might produce releases that are slightly less "polished" in certain aspects, but it is also a driving force towards turning HelenOS into a production-ready operating system in the near future. === General === * ''Dynamic linking'' is now supported and enabled by default on amd64, arm32, ppc32 and sparc64 (in addition to previous support on ia32) * Support for the MIPS Malta machine was improved by enabling serial console input/output both in the kernel console and also for the user interface. * Support for [wiki:Arch/Arm64 arm64] architecture (AArch64) was added. The port can run on the QEMU ARM Virtual Machine. === Kernel === * Support for serial console on the sparc64/sun4u machine was improved by enabling it in the kernel in addition to the already enabled support in the user interface. === Services and Drivers === * New specialized utility {{{pci}}} for listing PCI devices * Plus corresponding backend support in the PCI driver * Added driver for {{{virtio-blk}}} block devices. Use `-hdd virtio-blk` to enable in QEMU. So far this works only on ia32 and amd64. == Fixed Logged Bugs & Enhancements == * For the list of all logged defects fixed in this release, see this [query:status=closed&resolution=fixed&milestone=0.9.1&type=defect report]. * For the list of all logged enhancements integrated in this release, see this [query:status=closed&resolution=fixed&milestone=0.9.1&type=enhancement report]. == Known Bugs == * For the list of known bugs still not fixed in this release, see this [report:3 report]. * For the list of all open tickets, see this [report:1 report].