Page History

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• There are 93 Security Fixes
• Components where security fixes are added :- binutils, curl, epiphany, expat, ffmpeg, gcc, glibc, gmp, go, grub2, gzip, libarchive, libxml2, libxslt, lighttpd, linux-yocto, amdgpu, lua, openssl, qemu , rpm , seatd , speex , squashfs-tools , systemd , tiff , unzip , vim , virglrenderer , webkitgtk , xz , zlib
• There are 318 opensource component version upgrades
• Major opensource upgrades (Dunfell → Kirkstone) are :- GCC (9.3 → 11.3) , glibc (2.31 → 2.35) , glib-2.0 (2.62.4 → 2.72.3), systemd (244.3 → 250.5) , busybox (1.31.1 → 1.35.0)
• Netflix upgrade, youtube
• GCC compiler
• clang compiler, C++ 17 
• Maintainability - Dunfell 4 years ; Kirkstone 2 years ; CVE Dunfell is sill open (Refer Yocto mailing list), Upstream dunfell 3.1.24 has open CVE
• Build time - reduce number of default dependency (make build faster in first/second time)
• meta-rust is in core
• software bill of material (security infrastructure)
• share state - c standard. faster sstsate performance due to decompression standard cstd (twice faster than xz)
• license management tool improvement (more accurate license compliance)
• Kirkstone need minimum 4.x kernel (refer systemd)
• linux_kernel_header does not mandate

Kirkstone migration steps

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      Reference :- https://docs.yoctoproject.org/migration-guides/release-notes-4.0.html 

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Kirkstone build instructions for RPI4-32 

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Note: A detailed migration steps will be update before March 02,2023 

Kirkstone migration steps

• Enter into yocto4 workspace
• Raise CMF support ticket to create topic branch for all repos
  → feature-kirkstone for all CMF repositories
  → rdk/kirkstone for oe layer repositories
• Execute generic repo init command
• Update manifest XML files as follows
  → in oe-layers.xml, rdk/kirkstone should be the revision for meta-openembedded, openembedded-core,bitbake and meta-virtualization
  → feature-kirkstone should be the revision for all other meta layers
• Execute repo sync command
• Setup the environment for target
• Execute bitbake command to resolve parsing, compilation and other errors

Additional information for building a project:

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