- Decrease a little size of cache by few percents and improve loading/saving speed - [#1159](https://github.com/qarmin/czkawka/pull/1159)
- Added ability to remove from scan files with excluded extensions - [#1184](https://github.com/qarmin/czkawka/pull/1102)
- Fixed not showing in similar images results, files with same hashes when using reference folders - [#1184](https://github.com/qarmin/czkawka/pull/1102)
- Optimize release binaries with LTO - [#1184](https://github.com/qarmin/czkawka/pull/1102)
## Version 6.1.0 - 15.10.2023r
- BREAKING CHANGE - Changed cache saving method, deduplicated, optimized and simplified procedure(all files needs to be hashed again) - [#1072](https://github.com/qarmin/czkawka/pull/1072), [#1086](https://github.com/qarmin/czkawka/pull/1086)