Update changelog for v3.2

* Version check `klog -v`

* `klog --spec` and `klog --license`

* Sort order

* Indentation style

* Widget deprecation

* Phrasing

* M1 Mac binaries

* Phrasing

CHANGELOG.md

@@ -1,6 +1,23 @@
 # Changelog
 **Summary of changes of the command line tool**
 
+## v3.2
+- **[ BREAKING ]** Don’t allow mixing the indentation style within a
+  record. (It might still differ *between* records, though.) For example: if
+  the first entry is indented with a tab, then all further entries of that
+  particular record have to be indented with a tab as well. In order to check
+  that your existing files conform, you can parse all your `.klg` files at once
+  via a wildcard lookup, in order to see whether any indentation-related
+  errors are reported. On Linux, e.g.: `klog total ~/**/*.klg`.
+- **[ FEATURE ]** Allow version check via `klog -v` (in addition
+  to `klog --version` or `klog version`)
+- **[ FEATURE ]** Embed specification and license in the binary
+  (via `klog --spec` and `klog --license`)
+- **[ FEATURE ]** Provide binaries for M1 Macs (ARM) for download.
+- **[ FIX ]** Fix default sort order of `--sort` flag to be `asc`
+- **[ INFO ]** Deprecate the embedded native widget (for MacOS). It will be
+  removed in one of the next releases.
+
 ## v3.1
 - **[ FIX ]** Fix stdin processing on Windows