v1.8.1
Combat text from addons and scripts is fixed
Text pushed into the combat text overlay by an addon or a macro came out wrong. The message and the style were being read where the colour values should have been, so a red critical hit arrived as a yellow number with the text missing. The colours were read on the wrong scale as well, so a fully saturated channel came through as almost black rather than bright.
Both are fixed. Damage numbers the game creates itself were never affected, so if you only ever saw those, nothing was broken for you and nothing changes now.
If you write scripts
The command is UnitXP("addCombatText", style, text, r, g, b), with colours running from 0 to 1. That is the order every addon was written against. Anything written against the order 1.8.0 happened to accept will need updating.
Compatibility
Install over 1.8.0 the same way and keep your settings. No other mods are affected.