SMBIOS specification version 3.6.0 is available since June 2022. The changes are pretty straightforward so there's really no good reason to further delay the implementation of this version by dmidecode.
[PATCH 1/4] dmidecode: Add processor support from SMBIOS 3.6.0 [PATCH 2/4] dmidecode: Add memory support from SMBIOS 3.6.0 [PATCH 3/4] dmidecode: Add support for Loongarch [PATCH 4/4] dmidecode: Mark SMBIOS 3.6.0 as supported -- Jean Delvare SUSE L3 Support