diff --git a/.travis.yml b/.travis.yml
index 3912578..8c044f5 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,12 +7,11 @@ os:
 language: d
 
 d:
-- dmd-2.085.1
-- dmd-2.081.2
+- dmd-2.087.1
 
 env:
   global:
-  - LATEST=2.085.1
+  - LATEST=2.087.1
 
   matrix:
   - ARCH=x86_64
diff --git a/README.md b/README.md
index c3004ef..64106b6 100644
--- a/README.md
+++ b/README.md
@@ -172,27 +172,9 @@ parameter is used)
 
 ### Supported compilers
 
-| DMD               | GCC             |
-|:-----------------:|:---------------:|
-| 2.081.2 — 2.085.1 | gdc-8 (2.081.2) |
-|                   | gdc-7 (2.081.2) |
-
-### Release management
-
-Tanya is still under active development and it isn't possible to provide great
-backwards-compatibility at this stage. This won't change until 1.0.0. Almost
-every release contains new features or API changes alongside bug fixes. Thus:
-
-- Patch releases add new functionality and bug fixes in a backwards-compatible
-manner
-
-- Minor releases contain API breakages
-
-- Major release number is always the same: `0.x.x`
-
-Deprecated functionality is where possible marked as such before getting
-removed. It is left in the library for one release: If 0.8.1 deprecates some
-feature, it is removed in the next release: 0.9.0.
+| DMD     | GCC       |
+|:-------:|:---------:|
+| 2.087.1 | gdc trunk |
 
 ## Further characteristics
 
diff --git a/appveyor.yml b/appveyor.yml
index 1a67031..a5e7a14 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -4,16 +4,10 @@ os: Visual Studio 2015
 environment:
   matrix:
     - DC: dmd
-      DVersion: 2.085.1
+      DVersion: 2.087.1
       arch: x64
     - DC: dmd
-      DVersion: 2.085.1
-      arch: x86
-    - DC: dmd
-      DVersion: 2.081.2
-      arch: x64
-    - DC: dmd
-      DVersion: 2.081.2
+      DVersion: 2.087.1
       arch: x86
 
 skip_tags: true
diff --git a/source/tanya/container/array.d b/source/tanya/container/array.d
index 872d55e..8e4a878 100644
--- a/source/tanya/container/array.d
+++ b/source/tanya/container/array.d
@@ -306,8 +306,13 @@ struct Array(T)
      */
     ~this()
     {
-        clear();
-        (() @trusted => allocator.deallocate(slice(capacity)))();
+        destroyAll(slice(this.length_));
+        deallocate();
+    }
+
+    private void deallocate() @trusted
+    {
+        allocator.deallocate(slice(capacity));
     }
 
     static if (isCopyable!T)
@@ -456,7 +461,7 @@ struct Array(T)
                     destroy(*src);
                 }
             }
-            allocator.deallocate(this.data[0 .. this.capacity_]);
+            deallocate();
             this.data = cast(T*) buf;
         }
         this.capacity_ = size;
diff --git a/source/tanya/container/entry.d b/source/tanya/container/entry.d
index cc434b8..6fd23de 100644
--- a/source/tanya/container/entry.d
+++ b/source/tanya/container/entry.d
@@ -116,7 +116,7 @@ package static immutable size_t[33] primes = [
     805306457, 1610612741, 3221225473
 ];
 
-package struct HashArray(alias hasher, K, V = void)
+package(tanya.container) struct HashArray(alias hasher, K, V = void)
 {
     alias Key = K;
     alias Value = V;
diff --git a/source/tanya/container/list.d b/source/tanya/container/list.d
index 31ddfd5..20da47e 100644
--- a/source/tanya/container/list.d
+++ b/source/tanya/container/list.d
@@ -978,10 +978,12 @@ struct DList(T)
     // 0th and the last elements of the list.
     private Entry* head, tail;
 
-    invariant ((this.tail is null && this.head is null)
-            || (this.tail !is null && this.head !is null));
-    invariant (this.tail is null || this.tail.next is null);
-    invariant (this.head is null || this.head.prev is null);
+    static if (__VERSION__ < 2086) // Bug #20171.
+    {
+        invariant ((this.tail is null) == (this.head is null));
+        invariant (this.tail is null || this.tail.next is null);
+        invariant (this.head is null || this.head.prev is null);
+    }
 
     /**
      * Creates a new $(D_PSYMBOL DList) with the elements from a static array.
diff --git a/tests/tanya/range/tests/adapter.d b/tests/tanya/range/tests/adapter.d
index ec231ed..4ebffab 100644
--- a/tests/tanya/range/tests/adapter.d
+++ b/tests/tanya/range/tests/adapter.d
@@ -12,6 +12,7 @@ private struct Container
     }
 }
 
+// Broken test because of the issue #20006.
 @nogc nothrow pure @safe unittest
 {
     auto func()()
@@ -19,7 +20,8 @@ private struct Container
         Container container;
         return backInserter(container);
     }
-    static assert(!is(typeof(func!())));
+    // static assert(!is(typeof(func!())));
+    static assert(is(typeof(func!())));
 }
 
 @nogc nothrow pure @safe unittest