- update to 2.1.128:
* revert of `identityref` canonical value change
* the identity always printed with the module name as the
prefix
* data tree and hash table optimizations
* opaque node handling fixes and improvements
* lots of other bug fixes
- update to 2.1.111:
* opaque node parsing improved
* native RESTCONF operation parsing support
* `union` value error reporting improved
* new `yanglint` and `yangre` tests
* optional support for leafref with XPath functions
* lots of other fixes and improvements
- update to 2.1.80:
* RESTCONF message parsing
* JSON parser refactor
* timezone DST handling
* public hash table API
* stored union value bugfix
* many other clarifications, improvements, and bugfixes

* huge number of other fixes and improvements
* many other various bugfixes