++++++++++++++++++

**Improvements and Bug Fixes**

- **breaking change** Major changes in the TLV structure and classes. Reduced codebase size and
  improved compilation times. LSA de/serialize functions are replaced by wireEncode/Decode. Updated LSA
  wire formats and TLV assignments. Updated nlsrc to print using the new encoding. (:issue:`4787`, :issue:`5116`)
- LSDB refactor: switch to ``boost::multi_index`` to replace 3 LSA lists (:issue:`4127`)
- Fix wrong reaction on hello Interest timeout (:issue:`5139`)