v1.12.3
replace `REPL.TerminalMenus.terminal` with type stable function (#53704)
Add license headers to files
Avoid hardcoding paths in Profile and Sys (#59998)
fix getting field docstrings for parametric structs (#59725)
Prettify printing of a small number of completions (#49284)
fix string completion with cursor in the middle of text
Fix startup when history file is bad (#59418)