The question was not about maintenance but the absence of packages that are already present in the archived TARballs. Suggestion to migrate to 17.x does not replace the missing extensions for those that are bound to a specific kernel version of their applications. Nonetheless, corrected the failure to synchronize the time with the RTC for the piCore13.1 drop by sourcing the rtc-5.10.16 extensions for ARMv6, v7, and v7l or just taking the rtc-5.10.77 ARMv8 extension and retrofitting the existing objects from the posted source archives and repacking the individual extensions. The three extensions were unpacked using the 'squashfs-tools.tcz' addon, the module directory labels updated to reflect the actual 5.10.77 platform revision, the older existing 5.10.16 objects simply replaced with those from the kernel source archive TARballs, and then repacked with the squashfs tool.
Currently taking all LTS kernel incremental corrections to piCore13.x to piCore17.x and generating the kernel update extensions to address the CVEs for validation purposes and minimize risk exposure for TC connected devices. A single media SD/USB framework is being used containing the targeted X86 TinyCore, TinyCorePure64, piCore, and piCore64 distributions without alteration that permit application integration testing across multiple devices without having to cut and install components spread across numerous boot media in order to operate. So, if core components were missing, the test results yielded failures where there should not have been any.
Just wanted to clear up the nature of the inquiry.