Feature parity

Capability	Texchanges 0.2.2
Add, delete, replace, highlight, comment	Native, with old-to-new replacement order
Review/draft and final output	Supported, plus original mode
Registered authors and colors	Supported
Per-change author and comment	Supported
Visual presets and individual styles	Supported
Detailed lists and author summaries	Supported in review mode
Babel/Polyglossia captions	Six language sets
Command collision strategies	Opt-in compatibility
Source markup removal	Supplemental merge CLI
Unique change IDs	Texchanges extension
Pending/accepted/rejected status	Texchanges extension
Selective author/ID resolution	Texchanges CLI extension

Compatibility mode retains \replaced{new}{old}. The native API uses \txreplace{old}{new}.