diff --git a/CHANGELOG.md b/CHANGELOG.md
index f4646372..e1db24aa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -61,6 +61,9 @@
   - `bowtie.filled`: ⧓
   - `bowtie.filled.l`: ⧑
   - `bowtie.filled.r`: ⧒
+  - `tack.rrr`: ⫢
+  - `tacks.ll.rr`: ⟚
+  - `tacks.t.b.short`: ⫩
 
 - Currency
   - `riyal`: ⃁
@@ -81,6 +84,8 @@
 - `gt.tri` and variants in favor of `gt.closed`
 - `lt.tri` and variants in favor of `lt.closed`
 - `join` and its variants in favor of `bowtie.big` with the same variants
+- `tack.r.double`, `tack.r.double.not`, `tack.l.double`, `tack.t.double`, and `tack.b.double` in favor of `tack.rr`, `tack.rr.not`, `tack.ll`, `tack.tt`, and `tack.bb` respectively.
+- `tack.l.r` in favor of `tacks.l.r`.
 
 ### Removals **(Breaking change)**
 
diff --git a/src/modules/sym.txt b/src/modules/sym.txt
index 7b9b4258..0f98198d 100644
--- a/src/modules/sym.txt
+++ b/src/modules/sym.txt
@@ -1102,21 +1102,37 @@ tack
   .r.not ⊬
   .r.long ⟝
   .r.short ⊦
+  @deprecated: `tack.double` is deprecated, use repeated letters instead, e.g., `tack.rr`
   .r.double ⊨
+  .rr ⊨
+  @deprecated: `tack.double` is deprecated, use repeated letters instead, e.g., `tack.rr.not`
   .r.double.not ⊭
+  .rr.not ⊭
+  .rrr ⫢
   .l ⊣
   .l.long ⟞
   .l.short ⫞
+  @deprecated: `tack.double` is deprecated, use repeated letters instead, e.g., `tack.ll`
   .l.double ⫤
+  .ll ⫤
   .t ⊥
   .t.big ⟘
+  @deprecated: `tack.double` is deprecated, use repeated letters instead, e.g., `tack.tt`
   .t.double ⫫
+  .tt ⫫
   .t.short ⫠
   .b ⊤
   .b.big ⟙
+  @deprecated: `tack.double` is deprecated, use repeated letters instead, e.g., `tack.bb`
   .b.double ⫪
+  .bb ⫪
   .b.short ⫟
+  @deprecated: `tack.l.r` is deprecated, use `tacks.l.r` instead
   .l.r ⟛
+tacks
+  .l.r ⟛
+  .ll.rr ⟚
+  .t.b.short ⫩
 
 // Lowercase Greek.
 alpha α