diff --git a/relnotes/lazy_verify.bug.md b/relnotes/lazy_verify.bug.md
new file mode 100644
index 000000000..ac98d1ebc
--- /dev/null
+++ b/relnotes/lazy_verify.bug.md
@@ -0,0 +1,11 @@
+### `verify` now lazily allocates on `throw`, not on call
+
+`ocean.core.Verify`
+
+`verify` used to lazily initialize a `static` exception on the first call.
+However, this means that `testNoAlloc(verify(true))` could randomly fail,
+depending on the order unittests are executed,
+and this transitively affected all users of `verify` (that is, everything).
+`verify` will now lazily allocates only on `throw`,
+so `testNoAlloc(verify(true))` will always pass,
+but `testNoAlloc(verify(false))` could still potentially fail.
diff --git a/relnotes/suspendable-throttler-count-opsubassign.bug.md b/relnotes/suspendable-throttler-count-opsubassign.bug.md
new file mode 100644
index 000000000..a7913ce39
--- /dev/null
+++ b/relnotes/suspendable-throttler-count-opsubassign.bug.md
@@ -0,0 +1,8 @@
+### Fix `-=` operator implementation in SuspendableThrottlerCount
+
+`ocean.io.model.SuspendableThrottlerCount`
+
+The `-=` operator overload (D1 `opSubAssign`) was inexplicably aliased
+to the `add` method rather than the correct `remove`.  This probably
+means that no one was ever actually using the operator overload, but it
+seems a good idea to fix it in any case.
diff --git a/relnotes/undeprecate_fieldIdentifier.bug.md b/relnotes/undeprecate_fieldIdentifier.bug.md
new file mode 100644
index 000000000..eecb0e1b2
--- /dev/null
+++ b/relnotes/undeprecate_fieldIdentifier.bug.md
@@ -0,0 +1,6 @@
+### Template `Identifier.fieldIdentifier` is no longer deprecated
+
+`ocean.meta.codegen.Identifier.fieldIdentifier`
+
+This template was erroneously marked as deprecated in ocean v5.0.0, but
+it is still required. Using it will no longer generate a deprecation warning.
diff --git a/src/ocean/core/Traits.d b/src/ocean/core/Traits.d
index fa2cc53b6..820dbffc5 100644
--- a/src/ocean/core/Traits.d
+++ b/src/ocean/core/Traits.d
@@ -305,7 +305,7 @@ public M* GetField ( size_t i, M, T ) ( T* t )
 
 *******************************************************************************/
 
-deprecated("Use ocean.meta.codegen.Identifier.identifier!(T.tupleof[i])")
+deprecated("Use ocean.meta.codegen.Identifier.fieldIdentifier!(T, i)")
 public template FieldName ( size_t i, T )
 {
     static if ( !isCompoundType!(T) )
diff --git a/src/ocean/core/Verify.d b/src/ocean/core/Verify.d
index d573467e3..60ee23494 100644
--- a/src/ocean/core/Verify.d
+++ b/src/ocean/core/Verify.d
@@ -39,11 +39,11 @@ public void verify ( bool ok, lazy istring msg = "",
 {
     static SanityException exc;
 
-    if (exc is null)
-        exc = new SanityException("");
-
     if (!ok)
     {
+        if (exc is null)
+            exc = new SanityException("");
+
         exc.file = file;
         exc.line = line;
         exc.msg = msg;
diff --git a/src/ocean/io/device/DirectIO.d b/src/ocean/io/device/DirectIO.d
index 53ec0a940..7ccadd90c 100644
--- a/src/ocean/io/device/DirectIO.d
+++ b/src/ocean/io/device/DirectIO.d
@@ -574,7 +574,7 @@ public class BufferedDirectReadFile: InputStream
 
     ***************************************************************************/
 
-    static private class DirectReadFile : File
+    static protected class DirectReadFile : File
     {
         override public void open (cstring path, Style style = this.ReadExisting)
         {
diff --git a/src/ocean/io/model/SuspendableThrottlerCount.d b/src/ocean/io/model/SuspendableThrottlerCount.d
index 4636bb7be..0e1e31ca6 100644
--- a/src/ocean/io/model/SuspendableThrottlerCount.d
+++ b/src/ocean/io/model/SuspendableThrottlerCount.d
@@ -160,7 +160,7 @@ public class SuspendableThrottlerCount : ISuspendableThrottlerCount
         super.throttledResume();
     }
 
-    public alias add opSubAssign;
+    public alias remove opSubAssign;
 
 
     /***************************************************************************
@@ -176,6 +176,52 @@ public class SuspendableThrottlerCount : ISuspendableThrottlerCount
     }
 }
 
+unittest
+{
+    import ocean.core.Test : test;
+
+    // Helper class to allow us to test operator overloads
+    // without touching other parts of the class logic
+    static class OpsTest : SuspendableThrottlerCount
+    {
+        this ()
+        {
+            size_t suspend_point = 8;
+            size_t resume_point = 3;
+            super(suspend_point, resume_point);
+        }
+
+        override void inc () { this.count++; }
+        override void dec () { this.count--; }
+
+        override void add (size_t n) { this.count += n; }
+        override void remove (size_t n) { this.count -= n; }
+    }
+
+    scope ops_test = new OpsTest;
+    test!"=="(ops_test.length, 0);
+
+    ops_test++;
+    test!"=="(ops_test.length, 1);
+    test(!ops_test.suspend);
+    test(ops_test.resume);
+
+    ops_test += 7;
+    test!"=="(ops_test.length, 8);
+    test(ops_test.suspend);
+    test(!ops_test.resume);
+
+    ops_test--;
+    test!"=="(ops_test.length, 7);
+    test(!ops_test.suspend);
+    test(!ops_test.resume);
+
+    ops_test -= 4;
+    test!"=="(ops_test.length, 3);
+    test(!ops_test.suspend);
+    test(ops_test.resume);
+}
+
 
 /*******************************************************************************
 
diff --git a/src/ocean/meta/codegen/Identifier.d b/src/ocean/meta/codegen/Identifier.d
index b3b8669e5..ca99965f0 100644
--- a/src/ocean/meta/codegen/Identifier.d
+++ b/src/ocean/meta/codegen/Identifier.d
@@ -73,7 +73,7 @@ unittest
     Template to get the name of the ith member of a struct / class.
 
     Used over plain `identifier` when iterating over aggregate fields with
-    `.tupleof` as D1 compiler refuses to pass such field as template alias
+    `.tupleof` as compiler refuses to pass such field as template alias
     parameter.
 
     Params:
@@ -85,13 +85,12 @@ unittest
 
 *******************************************************************************/
 
-deprecated("Use ocean.meta.codegen.identifier!(T.tupleof[i])")
 public template fieldIdentifier ( T, size_t i )
 {
     enum fieldIdentifier = identifier!(T.tupleof[i]);
 }
 
-deprecated unittest
+unittest
 {
     static struct TestStruct
     {
diff --git a/src/ocean/util/app/CliApp.d b/src/ocean/util/app/CliApp.d
index 8f7297de8..7ec450613 100644
--- a/src/ocean/util/app/CliApp.d
+++ b/src/ocean/util/app/CliApp.d
@@ -36,7 +36,9 @@ import ocean.transition;
 
 abstract class CliApp : Application, IArgumentsExtExtension
 {
-    import ocean.text.Arguments : Arguments;
+    static import ocean.text.Arguments;
+    public alias ocean.text.Arguments.Arguments Arguments;
+
     import ocean.util.app.ext.ArgumentsExt;
     import ocean.util.app.ext.VersionArgsExt;
     import ocean.util.app.ext.TaskExt;