Official changes to Lojban's grammar since the CLL

1) The Xorlo reform (it didn't touch morphosyntax, but only semantics; more specifically it changed the meaning of the article "lo" and removed implicit quantifiers from all arguments)
The new definition of "lo" (as per Xorlo) is to be found there: https://mw.lojban.org/papri/BPFK_Section:_gadri#cmavo:_lo_.28LE.29

(The main impact of Xorlo in actual Lojban usage was that, before Xorlo, "le" was the main article particle, and now, after Xorlo, "lo" has almost completely replaced it in usage)


2) Dotside — https://mw.lojban.org/papri/The_Dot_Side

That one was a reform that was only concerned with the morphology of proper name words, called "cmevla" in Lojban


3) https://mw.lojban.org/papri/BPFK_Decisions

↑ A few miscellaneous relatively minor changes


4) There have been a number of minor changes in Lojban's morphology, but I'm not sure where is the documentation for those


5) Several specific particles have got their meaning changed, for example {me}, {ka}, {zi/za/zu/vi/va/vu}, possibly {.e'e}, probably a few others too


6) The scope of {na} have been changed, although I'm not sure to what extend it's official as of now.