diff --git a/HACKING.md b/HACKING.md
index 4b46ebc0..46e89ecf 100644
--- a/HACKING.md
+++ b/HACKING.md
@@ -377,7 +377,8 @@ attributes to make it work in Markdown renderers that strip "id". -->
 
  *  Prefer `'raw strings'` to `"double quoted strings"` whenever possible.
 
- *  Put spaces within `$( cmd )`, `$(( expr ))`, and `{ cmd; }`.
+ *  Put spaces within `$( cmd )`, `$(( expr ))`, and `{ cmd; }`.  Avoid spaces
+    within `${var}`.
 
  *  Put utility flags in the ASCII order and **don't** group them together.  For
     example, `ls -1 -A -q`.
diff --git a/openapi/openapi.yaml b/openapi/openapi.yaml
index 44c3c599..3dcbacfa 100644
--- a/openapi/openapi.yaml
+++ b/openapi/openapi.yaml
@@ -4,7 +4,7 @@
   'description': >
     AdGuard Home REST-ish API.  Our admin web interface is built on top of this
     REST-ish API.
-  'version': '0.105'
+  'version': '0.107'
   'contact':
     'name': 'AdGuard Home'
     'url': 'https://github.com/AdguardTeam/AdGuardHome'