Release v6.0

- #247
- #249
- #251

CHANGELOG.md

@@ -1,6 +1,20 @@
 # Changelog
 **Summary of changes of the command line tool**
 
+## v6.0
+- **[ BREAKING ]** The default location of the klog config folder has moved!
+  So far, that folder only contains the bookmark database, so if you don’t
+  use bookmarks, you can ignore this change. In order to see or configure the
+  new location of the klog config folder, please run `klog --config-folder`.
+  The previous location was `~/.klog` on all systems, so you might have to
+  manually move over the contents of that previous folder, and potentially adjust
+  your dotfile management (if you have that).
+- **[ FEATURE ]** Introduce optional, file-based configuration for general
+  preferences such as the preferred date or time format, or default values for
+  certain CLI flags. See `klog config` / `klog config --help` to learn more.
+- **[ FEATURE ]** Display warning when using `--now` without there being any
+  open-ended time range in the data.
+
 ## v5.4
 - **[ BREAKING ]** For `klog edit`, support if the `$EDITOR` variable
   contains additional flags, e.g. `vi -R` or `subl -w`. (If your editor