* make more standard libraries work with `nimPreviewSlimSystem`
* typo
* part two
* Delete specutils.nim
* fixes more tests
* more fixes
* fixes tests
* fixes three more tests
* add formatfloat import
* fix
* last
* Revert "fixes #20285; prevent oid time overflow at year 2038"
This reverts commit dfcdb6ec2a.
* increase time to 64 bits and clean up
* add testcase
* inline consts
* add a changelog
* fixes #20285; prevent oid time overflow at year 2038