Some of the main changes are
- The image size increased in 8.0.1-BETA3. The new size requires a 2 GB storage device. The GUI upgrade can be used to upgrade a system from BETA3, BETA4, or RC1 but upgrades from earlier releases can only be done from the CD. The other option is to save the config, reinstall the new version, then restore the config.
- FreeBSD can be really touchy with hardware. Please be sure to update your BIOS/BMC firmware when upgrading / installing FreeNAS if you run into OS hang issues. There have been cases identified where a BIOS upgrade has fixed driver hangs, and/or other issues with FreeNAS;
- Previous builds were branded as i386/amd64 (32-bit and 64-bit respectively). 8.0.3-RC1+ rebranded the architectures as x86 and x64, respectively.
- 8.0.1 and 8.0.2 images advertised CIFS shares to Macs by default but 8.0.3 and later images don’t advertise CIFS shares by default. If you want to advertise CIFS shares in 8.0.3 and later, be sure to turn on ”Zeroconf” support in the CIFS global settings.
- Builds prior to 8.0.3-RELEASE with ‘CIFS’ didn’t actually have AIO (asynchronous I/O) enabled. So, if you experience performance degradation after upgrading from prior versions of FreeNAS to 8.0.3-RELEASE or newer, turn off AIO or tune the AIO size from ’1′ to something more reasonable (the new default in 8.0.3-RELEASE-p1 is 4096 or 4kB).
For those interest in the FreeNAS 0.7 multimedia and streaming capabilities, you may download and install a CLI-only 8.0.4 “multimedia” release with support for Firefly media server, iTunes and Transmission bittorrent client. A multimedia GUI for these and other services and plugins will be available in a future version of FreeNAS.
More details about the update, including a full list of fixes and changes, can be found in the release notes. FreeNAS 8.0.4 is available to download for 32- and 64-bit systems, and documentation is provided.