Kernel Version |
Most Important Changes |
Additional Information
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2.6.31
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2.6.30
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- Ext4 Updates (protection against data loss during delayed allocation)
- New drivers for audio, video and USB hardware
- Fastboot for reducing kernel boot time
- I2C and hardware monitoring updates
- Notebooks: new dell-wmi driver, updates for Sony laptops and Thinkpad acpi
- relatime Default option for file systems (instead of atime)
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2.6.29
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- File system updates (Btrfs, Ext4 no journal mode)
- Kernel mode setting (framework for controlling graphics hardware)
- Wireless Access Point mode support
- Wimax support
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2.6.28
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- Ext4 file system – now considered stable in the kernel
- Improvement of kernel memory management scalability
- Disk shock protection for hard disks
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2.6.27
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- Reworked WLAN drivers
- The gspca webcam driver
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2.6.26
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- New and reworked WLAN drivers
- PCI Express Active State Power Management (ASPM) power-saving technology
- The KGDB kernel debugger
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2.6.25
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- New and reworked WLAN drivers
- Optimizations of the Ext4 file system and the Completely Fair Scheduler (CFS)
- The SMACK (Simplified Mandatory Access Control Kernel) security framework
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2.6.24
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2.6.23
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- The Completely Fair Scheduler (CFS) (process scheduler)
- Xen DomU support (based on paravirt_ops)
- Lguest (was originally Lguest for test purposes only, intended for paravit_ops-programming)
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2.6.22
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- New WLAN stack
- New Firewire stack
- Support for an additional CPU architecture: Analog Devices Blackfin
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2.6.21
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- High resolution timers
- Improvements to Kernel-based Virtual Machine (KVM) including: initial para-virtualization support, live migration, CPU hot-plugging support
- Virtual Machine Interface (VMI)[3][4][5] (based on paravirt_ops), contributed by VMware
- A reworked ACPI subsystem
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2.6.20
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- The paravirt_ops virtualization interface
- Virtualization Kernel-based Virtual Machine (KVM)
- Expansion of the PowerPC & Cell architectures for Playstation 3
- IO accounting (makes the use of iotop possible)
- Fault injection makes it possible for kernel developers to test how their code reacts to errors (kmalloc() failures, alloc_pages() failures, disk IO errors and similar errors can be simulated.)
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2.6.19
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- The Ext4 file system (experimental)
- The GFS2 file system
- The eCryptfs file system
- libata PATA (Parallel ATA)
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2.6.18
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- libata (SATA) Update
- CFQ is now the default IO scheduler (was already the default in many distrubiton systems like RHEL4)
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