diff --git a/package-lock.json b/package-lock.json
index 5b89bb48..ef0254c6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "minimatch",
-  "version": "7.1.0",
+  "version": "7.1.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "minimatch",
-      "version": "7.1.0",
+      "version": "7.1.1",
       "license": "ISC",
       "dependencies": {
         "brace-expansion": "^2.0.1"
diff --git a/package.json b/package.json
index 0dc7f0c0..cff3ad30 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "author": "Isaac Z. Schlueter <i@izs.me> (http://blog.izs.me)",
   "name": "minimatch",
   "description": "a glob matcher in javascript",
-  "version": "7.1.0",
+  "version": "7.1.1",
   "repository": {
     "type": "git",
     "url": "git://github.com/isaacs/minimatch.git"
diff --git a/src/index.ts b/src/index.ts
index 8c7f3bd6..03bc74cf 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -495,9 +495,13 @@ export class Minimatch {
             i--
           }
         }
-        if (parts[0] === '.') {
+        if (
+          parts[0] === '.' &&
+          parts.length === 2 &&
+          (parts[1] === '.' || parts[1] === '')
+        ) {
           didSomething = true
-          parts.shift()
+          parts.pop()
         }
       }
 
@@ -577,9 +581,13 @@ export class Minimatch {
               i--
             }
           }
-          if (parts[0] === '.') {
+          if (
+            parts[0] === '.' &&
+            parts.length === 2 &&
+            (parts[1] === '.' || parts[1] === '')
+          ) {
             didSomething = true
-            parts.shift()
+            parts.pop()
           }
         }
 
@@ -589,7 +597,9 @@ export class Minimatch {
           const p = parts[dd - 1]
           if (p && p !== '.' && p !== '..' && p !== '**') {
             didSomething = true
-            parts.splice(dd - 1, 2)
+            const needDot = dd === 1 && parts[dd + 1] === '**'
+            const splin = needDot ? ['.'] : []
+            parts.splice(dd - 1, 2, ...splin)
             if (parts.length === 0) parts.push('')
             dd -= 2
           }
diff --git a/tap-snapshots/test/optimization-level-2.ts.test.cjs b/tap-snapshots/test/optimization-level-2.ts.test.cjs
index f20a40ce..5daea2b8 100644
--- a/tap-snapshots/test/optimization-level-2.ts.test.cjs
+++ b/tap-snapshots/test/optimization-level-2.ts.test.cjs
@@ -630,7 +630,7 @@ exports[`test/optimization-level-2.ts TAP basic tests > makeRe {a,*(b|{c,d})} 1`
 `
 
 exports[`test/optimization-level-2.ts TAP basic tests > makeRe {c*,./c*} 1`] = `
-/^(?:(?=.)c[^/]*?)$/
+/^(?:(?=.)c[^/]*?|\\.\\/(?=.)c[^/]*?)$/
 `
 
 exports[`test/optimization-level-2.ts TAP basic tests > makeRe Å 1`] = `
@@ -665,6 +665,30 @@ exports[`test/optimization-level-2.ts TAP basic tests > makeRe å 4`] = `
 /^(?:å)$/
 `
 
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux ** > defaults 1`] = `
+Array [
+  Array [
+    "**",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux ** > multislash 1`] = `
+Array [
+  Array [
+    "**",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux ** > no globstar 1`] = `
+Array [
+  Array [
+    "*",
+  ],
+]
+`
+
 exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux **/.. > defaults 1`] = `
 Array [
   Array [
@@ -732,6 +756,19 @@ Array [
 ]
 `
 
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux **/../x > defaults 2`] = `
+Array [
+  Array [
+    "..",
+    "x",
+  ],
+  Array [
+    "**",
+    "x",
+  ],
+]
+`
+
 exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux **/../x > multislash 1`] = `
 Array [
   Array [
@@ -745,6 +782,19 @@ Array [
 ]
 `
 
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux **/../x > multislash 2`] = `
+Array [
+  Array [
+    "..",
+    "x",
+  ],
+  Array [
+    "**",
+    "x",
+  ],
+]
+`
+
 exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux **/../x > no globstar 1`] = `
 Array [
   Array [
@@ -753,6 +803,250 @@ Array [
 ]
 `
 
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux **/../x > no globstar 2`] = `
+Array [
+  Array [
+    "x",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux */../** > defaults 1`] = `
+Array [
+  Array [
+    ".",
+    "**",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux */../** > multislash 1`] = `
+Array [
+  Array [
+    ".",
+    "**",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux */../** > no globstar 1`] = `
+Array [
+  Array [
+    "*",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux ./ > defaults 1`] = `
+Array [
+  Array [
+    ".",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux ./ > multislash 1`] = `
+Array [
+  Array [
+    ".",
+    "",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux ./ > no globstar 1`] = `
+Array [
+  Array [
+    ".",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux ./** > defaults 1`] = `
+Array [
+  Array [
+    ".",
+    "**",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux ./** > multislash 1`] = `
+Array [
+  Array [
+    ".",
+    "**",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux ./** > no globstar 1`] = `
+Array [
+  Array [
+    ".",
+    "*",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux ./**/ > defaults 1`] = `
+Array [
+  Array [
+    ".",
+    "**",
+    "",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux ./**/ > multislash 1`] = `
+Array [
+  Array [
+    ".",
+    "**",
+    "",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux ./**/ > no globstar 1`] = `
+Array [
+  Array [
+    ".",
+    "*",
+    "",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux ./**/../x > defaults 1`] = `
+Array [
+  Array [
+    ".",
+    "..",
+    "x",
+  ],
+  Array [
+    ".",
+    "**",
+    "x",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux ./**/../x > multislash 1`] = `
+Array [
+  Array [
+    ".",
+    "..",
+    "x",
+  ],
+  Array [
+    ".",
+    "**",
+    "x",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux ./**/../x > no globstar 1`] = `
+Array [
+  Array [
+    ".",
+    "x",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux ./**/x > defaults 1`] = `
+Array [
+  Array [
+    ".",
+    "**",
+    "x",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux ./**/x > multislash 1`] = `
+Array [
+  Array [
+    ".",
+    "**",
+    "x",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux ./**/x > no globstar 1`] = `
+Array [
+  Array [
+    ".",
+    "*",
+    "x",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux ./././. > defaults 1`] = `
+Array [
+  Array [
+    ".",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux ./././. > multislash 1`] = `
+Array [
+  Array [
+    ".",
+    ".",
+    ".",
+    ".",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux ./././. > no globstar 1`] = `
+Array [
+  Array [
+    ".",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux ./x/.././///.//./ > defaults 1`] = `
+Array [
+  Array [
+    ".",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux ./x/.././///.//./ > multislash 1`] = `
+Array [
+  Array [
+    ".",
+    ".",
+    "",
+    "",
+    "",
+    ".",
+    "",
+    ".",
+    "",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux ./x/.././///.//./ > no globstar 1`] = `
+Array [
+  Array [
+    ".",
+  ],
+]
+`
+
 exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux //host/share > defaults 1`] = `
 Array [
   Array [
@@ -952,147 +1246,369 @@ Array [
   Array [
     "a",
     "b",
-    "d",
+    "d",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{**/,}*/b > defaults 1`] = `
+Array [
+  Array [
+    "a",
+    "**",
+    "*",
+    "b",
+  ],
+  Array [
+    "a",
+    "*",
+    "b",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{**/,}*/b > multislash 1`] = `
+Array [
+  Array [
+    "a",
+    "**",
+    "*",
+    "b",
+  ],
+  Array [
+    "a",
+    "*",
+    "b",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{**/,}*/b > no globstar 1`] = `
+Array [
+  Array [
+    "a",
+    "*",
+    "*",
+    "b",
+  ],
+  Array [
+    "a",
+    "*",
+    "b",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{**/,}b > defaults 1`] = `
+Array [
+  Array [
+    "a",
+    "**",
+    "b",
+  ],
+  Array [
+    "a",
+    "b",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{**/,}b > multislash 1`] = `
+Array [
+  Array [
+    "a",
+    "**",
+    "b",
+  ],
+  Array [
+    "a",
+    "b",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{**/,}b > no globstar 1`] = `
+Array [
+  Array [
+    "a",
+    "*",
+    "b",
+  ],
+  Array [
+    "a",
+    "b",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{*,.c}/b > defaults 1`] = `
+Array [
+  Array [
+    "a",
+    "*",
+    "b",
+  ],
+  Array [
+    "a",
+    ".c",
+    "b",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{*,.c}/b > multislash 1`] = `
+Array [
+  Array [
+    "a",
+    "*",
+    "b",
+  ],
+  Array [
+    "a",
+    ".c",
+    "b",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{*,.c}/b > no globstar 1`] = `
+Array [
+  Array [
+    "a",
+    "*",
+    "b",
+  ],
+  Array [
+    "a",
+    ".c",
+    "b",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{*,c}/b > defaults 1`] = `
+Array [
+  Array [
+    "a",
+    "*",
+    "b",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{*,c}/b > multislash 1`] = `
+Array [
+  Array [
+    "a",
+    "*",
+    "b",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{*,c}/b > no globstar 1`] = `
+Array [
+  Array [
+    "a",
+    "*",
+    "b",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{*/b/d,c/b/*}/e > defaults 1`] = `
+Array [
+  Array [
+    "a",
+    "*",
+    "b",
+    "d",
+    "e",
+  ],
+  Array [
+    "a",
+    "c",
+    "b",
+    "*",
+    "e",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{*/b/d,c/b/*}/e > multislash 1`] = `
+Array [
+  Array [
+    "a",
+    "*",
+    "b",
+    "d",
+    "e",
+  ],
+  Array [
+    "a",
+    "c",
+    "b",
+    "*",
+    "e",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{*/b/d,c/b/*}/e > no globstar 1`] = `
+Array [
+  Array [
+    "a",
+    "*",
+    "b",
+    "d",
+    "e",
+  ],
+  Array [
+    "a",
+    "c",
+    "b",
+    "*",
+    "e",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{**/,}*/b > defaults 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{,**/}*/b > defaults 1`] = `
 Array [
   Array [
     "a",
-    "**",
     "*",
     "b",
   ],
   Array [
     "a",
+    "**",
     "*",
     "b",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{**/,}*/b > multislash 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{,**/}*/b > multislash 1`] = `
 Array [
   Array [
     "a",
-    "**",
     "*",
     "b",
   ],
   Array [
     "a",
+    "**",
     "*",
     "b",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{**/,}*/b > no globstar 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{,**/}*/b > no globstar 1`] = `
 Array [
   Array [
     "a",
     "*",
-    "*",
     "b",
   ],
   Array [
     "a",
     "*",
+    "*",
     "b",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{**/,}b > defaults 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{,**/}b > defaults 1`] = `
 Array [
   Array [
     "a",
-    "**",
     "b",
   ],
   Array [
     "a",
+    "**",
     "b",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{**/,}b > multislash 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{,**/}b > multislash 1`] = `
 Array [
   Array [
     "a",
-    "**",
     "b",
   ],
   Array [
     "a",
+    "**",
     "b",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{**/,}b > no globstar 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{,**/}b > no globstar 1`] = `
 Array [
   Array [
     "a",
-    "*",
     "b",
   ],
   Array [
     "a",
+    "*",
     "b",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{*,.c}/b > defaults 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{.c,*}/b > defaults 1`] = `
 Array [
   Array [
     "a",
-    "*",
+    ".c",
     "b",
   ],
   Array [
     "a",
-    ".c",
+    "*",
     "b",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{*,.c}/b > multislash 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{.c,*}/b > multislash 1`] = `
 Array [
   Array [
     "a",
-    "*",
+    ".c",
     "b",
   ],
   Array [
     "a",
-    ".c",
+    "*",
     "b",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{*,.c}/b > no globstar 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{.c,*}/b > no globstar 1`] = `
 Array [
   Array [
     "a",
-    "*",
+    ".c",
     "b",
   ],
   Array [
     "a",
-    ".c",
+    "*",
     "b",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{*,c}/b > defaults 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{c,*}/b > defaults 1`] = `
 Array [
   Array [
     "a",
@@ -1102,7 +1618,7 @@ Array [
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{*,c}/b > multislash 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{c,*}/b > multislash 1`] = `
 Array [
   Array [
     "a",
@@ -1112,7 +1628,7 @@ Array [
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{*,c}/b > no globstar 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{c,*}/b > no globstar 1`] = `
 Array [
   Array [
     "a",
@@ -1122,8 +1638,15 @@ Array [
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{*/b/d,c/b/*}/e > defaults 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{c/b/*,*/b/d}/e > defaults 1`] = `
 Array [
+  Array [
+    "a",
+    "c",
+    "b",
+    "*",
+    "e",
+  ],
   Array [
     "a",
     "*",
@@ -1131,6 +1654,11 @@ Array [
     "d",
     "e",
   ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{c/b/*,*/b/d}/e > multislash 1`] = `
+Array [
   Array [
     "a",
     "c",
@@ -1138,11 +1666,25 @@ Array [
     "*",
     "e",
   ],
+  Array [
+    "a",
+    "*",
+    "b",
+    "d",
+    "e",
+  ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{*/b/d,c/b/*}/e > multislash 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{c/b/*,*/b/d}/e > no globstar 1`] = `
 Array [
+  Array [
+    "a",
+    "c",
+    "b",
+    "*",
+    "e",
+  ],
   Array [
     "a",
     "*",
@@ -1150,9 +1692,14 @@ Array [
     "d",
     "e",
   ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{c/b/d,*/b/*}/e > defaults 1`] = `
+Array [
   Array [
     "a",
-    "c",
+    "*",
     "b",
     "*",
     "e",
@@ -1160,18 +1707,23 @@ Array [
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{*/b/d,c/b/*}/e > no globstar 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{c/b/d,*/b/*}/e > multislash 1`] = `
 Array [
   Array [
     "a",
     "*",
     "b",
-    "d",
+    "*",
     "e",
   ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{c/b/d,*/b/*}/e > no globstar 1`] = `
+Array [
   Array [
     "a",
-    "c",
+    "*",
     "b",
     "*",
     "e",
@@ -1179,39 +1731,35 @@ Array [
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{,**/}*/b > defaults 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux {a/**/b,a/b} > defaults 1`] = `
 Array [
   Array [
     "a",
-    "*",
+    "**",
     "b",
   ],
   Array [
     "a",
-    "**",
-    "*",
     "b",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{,**/}*/b > multislash 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux {a/**/b,a/b} > multislash 1`] = `
 Array [
   Array [
     "a",
-    "*",
+    "**",
     "b",
   ],
   Array [
     "a",
-    "**",
-    "*",
     "b",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{,**/}*/b > no globstar 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux {a/**/b,a/b} > no globstar 1`] = `
 Array [
   Array [
     "a",
@@ -1220,349 +1768,389 @@ Array [
   ],
   Array [
     "a",
-    "*",
-    "*",
     "b",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{,**/}b > defaults 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 ** > defaults 1`] = `
 Array [
   Array [
-    "a",
-    "b",
+    "**",
   ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 ** > multislash 1`] = `
+Array [
   Array [
-    "a",
     "**",
-    "b",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{,**/}b > multislash 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 ** > no globstar 1`] = `
 Array [
   Array [
-    "a",
-    "b",
+    "*",
   ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 **/.. > defaults 1`] = `
+Array [
   Array [
-    "a",
     "**",
-    "b",
+    "..",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{,**/}b > no globstar 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 **/.. > multislash 1`] = `
 Array [
   Array [
-    "a",
-    "b",
+    "**",
+    "..",
   ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 **/.. > no globstar 1`] = `
+Array [
   Array [
-    "a",
-    "*",
-    "b",
+    "",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{.c,*}/b > defaults 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 **/../ > defaults 1`] = `
 Array [
   Array [
-    "a",
-    ".c",
-    "b",
+    "**",
+    "..",
+    "",
   ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 **/../ > multislash 1`] = `
+Array [
   Array [
-    "a",
-    "*",
-    "b",
+    "**",
+    "..",
+    "",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{.c,*}/b > multislash 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 **/../ > no globstar 1`] = `
 Array [
   Array [
-    "a",
-    ".c",
-    "b",
+    "",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 **/../x > defaults 1`] = `
+Array [
+  Array [
+    "..",
+    "x",
   ],
   Array [
-    "a",
-    "*",
-    "b",
+    "**",
+    "x",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{.c,*}/b > no globstar 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 **/../x > defaults 2`] = `
 Array [
   Array [
-    "a",
-    ".c",
-    "b",
+    "..",
+    "x",
   ],
   Array [
-    "a",
-    "*",
-    "b",
+    "**",
+    "x",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{c,*}/b > defaults 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 **/../x > multislash 1`] = `
 Array [
   Array [
-    "a",
-    "*",
-    "b",
+    "..",
+    "x",
+  ],
+  Array [
+    "**",
+    "x",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{c,*}/b > multislash 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 **/../x > multislash 2`] = `
 Array [
   Array [
-    "a",
-    "*",
-    "b",
+    "..",
+    "x",
+  ],
+  Array [
+    "**",
+    "x",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{c,*}/b > no globstar 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 **/../x > no globstar 1`] = `
 Array [
   Array [
-    "a",
-    "*",
-    "b",
+    "x",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{c/b/*,*/b/d}/e > defaults 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 **/../x > no globstar 2`] = `
 Array [
   Array [
-    "a",
-    "c",
-    "b",
-    "*",
-    "e",
+    "x",
+  ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 */../** > defaults 1`] = `
+Array [
+  Array [
+    ".",
+    "**",
   ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 */../** > multislash 1`] = `
+Array [
   Array [
-    "a",
-    "*",
-    "b",
-    "d",
-    "e",
+    ".",
+    "**",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{c/b/*,*/b/d}/e > multislash 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 */../** > no globstar 1`] = `
 Array [
   Array [
-    "a",
-    "c",
-    "b",
     "*",
-    "e",
   ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 ./ > defaults 1`] = `
+Array [
   Array [
-    "a",
-    "*",
-    "b",
-    "d",
-    "e",
+    ".",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{c/b/*,*/b/d}/e > no globstar 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 ./ > multislash 1`] = `
 Array [
   Array [
-    "a",
-    "c",
-    "b",
-    "*",
-    "e",
+    ".",
+    "",
   ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 ./ > no globstar 1`] = `
+Array [
   Array [
-    "a",
-    "*",
-    "b",
-    "d",
-    "e",
+    ".",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{c/b/d,*/b/*}/e > defaults 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 ./** > defaults 1`] = `
 Array [
   Array [
-    "a",
-    "*",
-    "b",
-    "*",
-    "e",
+    ".",
+    "**",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{c/b/d,*/b/*}/e > multislash 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 ./** > multislash 1`] = `
 Array [
   Array [
-    "a",
-    "*",
-    "b",
-    "*",
-    "e",
+    ".",
+    "**",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux a/{c/b/d,*/b/*}/e > no globstar 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 ./** > no globstar 1`] = `
 Array [
   Array [
-    "a",
-    "*",
-    "b",
+    ".",
     "*",
-    "e",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux {a/**/b,a/b} > defaults 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 ./**/ > defaults 1`] = `
 Array [
   Array [
-    "a",
+    ".",
     "**",
-    "b",
-  ],
-  Array [
-    "a",
-    "b",
+    "",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux {a/**/b,a/b} > multislash 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 ./**/ > multislash 1`] = `
 Array [
   Array [
-    "a",
+    ".",
     "**",
-    "b",
+    "",
   ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 ./**/ > no globstar 1`] = `
+Array [
   Array [
-    "a",
-    "b",
+    ".",
+    "*",
+    "",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization linux {a/**/b,a/b} > no globstar 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 ./**/../x > defaults 1`] = `
 Array [
   Array [
-    "a",
-    "*",
-    "b",
+    ".",
+    "..",
+    "x",
   ],
   Array [
-    "a",
-    "b",
+    ".",
+    "**",
+    "x",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 **/.. > defaults 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 ./**/../x > multislash 1`] = `
 Array [
   Array [
-    "**",
+    ".",
     "..",
+    "x",
+  ],
+  Array [
+    ".",
+    "**",
+    "x",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 **/.. > multislash 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 ./**/../x > no globstar 1`] = `
 Array [
   Array [
-    "**",
-    "..",
+    ".",
+    "x",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 **/.. > no globstar 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 ./**/x > defaults 1`] = `
 Array [
   Array [
-    "",
+    ".",
+    "**",
+    "x",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 **/../ > defaults 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 ./**/x > multislash 1`] = `
 Array [
   Array [
+    ".",
     "**",
-    "..",
-    "",
+    "x",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 **/../ > multislash 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 ./**/x > no globstar 1`] = `
 Array [
   Array [
-    "**",
-    "..",
-    "",
+    ".",
+    "*",
+    "x",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 **/../ > no globstar 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 ./././. > defaults 1`] = `
 Array [
   Array [
-    "",
+    ".",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 **/../x > defaults 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 ./././. > multislash 1`] = `
 Array [
   Array [
-    "..",
-    "x",
+    ".",
+    ".",
+    ".",
+    ".",
   ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 ./././. > no globstar 1`] = `
+Array [
   Array [
-    "**",
-    "x",
+    ".",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 **/../x > multislash 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 ./x/.././///.//./ > defaults 1`] = `
 Array [
   Array [
-    "..",
-    "x",
+    ".",
   ],
+]
+`
+
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 ./x/.././///.//./ > multislash 1`] = `
+Array [
   Array [
-    "**",
-    "x",
+    ".",
+    ".",
+    "",
+    "",
+    "",
+    ".",
+    "",
+    ".",
+    "",
   ],
 ]
 `
 
-exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 **/../x > no globstar 1`] = `
+exports[`test/optimization-level-2.ts TAP explicit pattern coalescing and optimization win32 ./x/.././///.//./ > no globstar 1`] = `
 Array [
   Array [
-    "x",
+    ".",
   ],
 ]
 `
@@ -2307,7 +2895,7 @@ Array [
 
 exports[`test/optimization-level-2.ts TAP optimize the file as well linux . > default 1`] = `
 Array [
-  "",
+  ".",
 ]
 `
 
@@ -2317,8 +2905,22 @@ Array [
 ]
 `
 
+exports[`test/optimization-level-2.ts TAP optimize the file as well linux ./ > default 1`] = `
+Array [
+  ".",
+]
+`
+
+exports[`test/optimization-level-2.ts TAP optimize the file as well linux ./ > multislash 1`] = `
+Array [
+  ".",
+  "",
+]
+`
+
 exports[`test/optimization-level-2.ts TAP optimize the file as well linux ./* > default 1`] = `
 Array [
+  ".",
   "*",
 ]
 `
@@ -2330,9 +2932,22 @@ Array [
 ]
 `
 
+exports[`test/optimization-level-2.ts TAP optimize the file as well linux ./. > default 1`] = `
+Array [
+  ".",
+]
+`
+
+exports[`test/optimization-level-2.ts TAP optimize the file as well linux ./. > multislash 1`] = `
+Array [
+  ".",
+  ".",
+]
+`
+
 exports[`test/optimization-level-2.ts TAP optimize the file as well linux ././. > default 1`] = `
 Array [
-  "",
+  ".",
 ]
 `
 
@@ -2344,6 +2959,28 @@ Array [
 ]
 `
 
+exports[`test/optimization-level-2.ts TAP optimize the file as well linux .////././//././. > default 1`] = `
+Array [
+  ".",
+]
+`
+
+exports[`test/optimization-level-2.ts TAP optimize the file as well linux .////././//././. > multislash 1`] = `
+Array [
+  ".",
+  "",
+  "",
+  "",
+  ".",
+  ".",
+  "",
+  "",
+  ".",
+  ".",
+  ".",
+]
+`
+
 exports[`test/optimization-level-2.ts TAP optimize the file as well linux / > default 1`] = `
 Array [
   "",
@@ -2417,7 +3054,7 @@ Array [
 
 exports[`test/optimization-level-2.ts TAP optimize the file as well win32 . > default 1`] = `
 Array [
-  "",
+  ".",
 ]
 `
 
@@ -2427,8 +3064,22 @@ Array [
 ]
 `
 
+exports[`test/optimization-level-2.ts TAP optimize the file as well win32 ./ > default 1`] = `
+Array [
+  ".",
+]
+`
+
+exports[`test/optimization-level-2.ts TAP optimize the file as well win32 ./ > multislash 1`] = `
+Array [
+  ".",
+  "",
+]
+`
+
 exports[`test/optimization-level-2.ts TAP optimize the file as well win32 ./* > default 1`] = `
 Array [
+  ".",
   "*",
 ]
 `
@@ -2440,9 +3091,22 @@ Array [
 ]
 `
 
+exports[`test/optimization-level-2.ts TAP optimize the file as well win32 ./. > default 1`] = `
+Array [
+  ".",
+]
+`
+
+exports[`test/optimization-level-2.ts TAP optimize the file as well win32 ./. > multislash 1`] = `
+Array [
+  ".",
+  ".",
+]
+`
+
 exports[`test/optimization-level-2.ts TAP optimize the file as well win32 ././. > default 1`] = `
 Array [
-  "",
+  ".",
 ]
 `
 
@@ -2454,6 +3118,28 @@ Array [
 ]
 `
 
+exports[`test/optimization-level-2.ts TAP optimize the file as well win32 .////././//././. > default 1`] = `
+Array [
+  ".",
+]
+`
+
+exports[`test/optimization-level-2.ts TAP optimize the file as well win32 .////././//././. > multislash 1`] = `
+Array [
+  ".",
+  "",
+  "",
+  "",
+  ".",
+  ".",
+  "",
+  "",
+  ".",
+  ".",
+  ".",
+]
+`
+
 exports[`test/optimization-level-2.ts TAP optimize the file as well win32 / > default 1`] = `
 Array [
   "",
diff --git a/test/optimization-level-2.ts b/test/optimization-level-2.ts
index b385549e..26d7d258 100644
--- a/test/optimization-level-2.ts
+++ b/test/optimization-level-2.ts
@@ -24,6 +24,12 @@ t.test('explicit pattern coalescing and optimization', t => {
       })
 
       const patterns = [
+        '**',
+        '**/../x',
+        './**',
+        './**/',
+        './**/x',
+        './**/../x',
         '//host/share',
         '//host/share/',
         '//host/share//s/o//me////.//path',
@@ -44,6 +50,10 @@ t.test('explicit pattern coalescing and optimization', t => {
         'a/{,**/}*/b',
         'a/{**/,}b',
         'a/{**/,}*/b',
+        './././.',
+        './',
+        './x/.././///.//./',
+        '*/../**',
       ]
 
       const exp = (p: string) => braceExpand(p).map(s => s.split('/'))
@@ -69,6 +79,9 @@ t.test('optimize the file as well', t => {
     '',
     '.',
     '././.',
+    './.',
+    './',
+    './///././//././.',
     'x/..',
     'a/../b',
   ]