The 4.15 release is planned for October 2021.
Update this document with changes that should be in the release notes.
By using newer coreboot features like board variants and override devicetrees, lots of code can now be shared. This should ease maintenance and also make it easier for newcomers to add support for even more mainboards.
Previously, the default behaviour for Intel chipset lockdown was to let the FSP do it. Since all related mainboards used the coreboot mechanisms for chipset lockdown, the default behaviour was changed to that.