diff --git a/source/dub/dub.d b/source/dub/dub.d
index 2ebc60a..e1406c8 100644
--- a/source/dub/dub.d
+++ b/source/dub/dub.d
@@ -33,7 +33,7 @@
 import std.encoding : sanitize;
 
 // Set output path and options for coverage reports
-version (DigitalMars) version (D_Coverage) static if (__VERSION__ >= 2068)
+version (DigitalMars) version (D_Coverage)
 {
 	shared static this()
 	{
diff --git a/source/dub/generators/generator.d b/source/dub/generators/generator.d
index dca03da..48e10ec 100644
--- a/source/dub/generators/generator.d
+++ b/source/dub/generators/generator.d
@@ -305,10 +305,7 @@
 		}
 
 		collectDependencies(rootPackage, *roottarget, targets);
-		static if (__VERSION__ > 2070)
-			visited.clear();
-		else
-			destroy(visited);
+		visited.clear();
 
 		// 1. downwards inherits versions, debugVersions, and inheritable build settings
 		static void configureDependencies(in ref TargetInfo ti, TargetInfo[string] targets, size_t level = 0)
@@ -360,10 +357,7 @@
 		}
 
 		configureDependents(*roottarget, targets);
-		static if (__VERSION__ > 2070)
-			visited.clear();
-		else
-			destroy(visited);
+		visited.clear();
 
 		// 4. Filter applicable version and debug version identifiers
 		if (genSettings.filterVersions)
diff --git a/source/dub/internal/utils.d b/source/dub/internal/utils.d
index 3c8a6e3..043812d 100644
--- a/source/dub/internal/utils.d
+++ b/source/dub/internal/utils.d
@@ -26,7 +26,7 @@
 version(DubUseCurl)
 {
 	import std.net.curl;
-	static if (__VERSION__ > 2075) public import std.net.curl : HTTPStatusException;
+	public import std.net.curl : HTTPStatusException;
 }
 
 
@@ -220,37 +220,8 @@
 	}
 }
 
-version(DubUseCurl) {
-	/++
-	 Exception thrown on HTTP request failures, e.g. 404 Not Found.
-	 +/
-	static if (__VERSION__ <= 2075) class HTTPStatusException : CurlException
-	{
-		/++
-		 Params:
-		 status = The HTTP status code.
-		 msg  = The message for the exception.
-		 file = The file where the exception occurred.
-		 line = The line number where the exception occurred.
-		 next = The previous exception in the chain of exceptions, if any.
-		 +/
-		@safe pure nothrow
-			this(
-				int status,
-				string msg,
-				string file = __FILE__,
-				size_t line = __LINE__,
-				Throwable next = null)
-		{
-			this.status = status;
-			super(msg, file, line, next);
-		}
-
-		int status; /// The HTTP status code
-	}
-} else version (Have_vibe_d_http) {
+version (Have_vibe_d_http)
 	public import vibe.http.common : HTTPStatusException;
-}
 
 /**
 	Downloads a file from the specified URL.
@@ -271,27 +242,13 @@
 		auto conn = HTTP();
 		setupHTTPClient(conn, timeout);
 		logDebug("Storing %s...", url);
-		static if (__VERSION__ <= 2075)
-		{
-			try
-				std.net.curl.download(url, filename, conn);
-			catch (CurlException e)
-			{
-				if (e.msg.canFind("404"))
-					throw new HTTPStatusException(404, e.msg);
-				throw e;
-			}
-		}
-		else
-		{
-			std.net.curl.download(url, filename, conn);
-			// workaround https://issues.dlang.org/show_bug.cgi?id=18318
-			auto sl = conn.statusLine;
-			logDebug("Download %s %s", url, sl);
-			if (sl.code / 100 != 2)
-				throw new HTTPStatusException(sl.code,
-					"Downloading %s failed with %d (%s).".format(url, sl.code, sl.reason));
-		}
+		std.net.curl.download(url, filename, conn);
+		// workaround https://issues.dlang.org/show_bug.cgi?id=18318
+		auto sl = conn.statusLine;
+		logDebug("Download %s %s", url, sl);
+		if (sl.code / 100 != 2)
+			throw new HTTPStatusException(sl.code,
+				"Downloading %s failed with %d (%s).".format(url, sl.code, sl.reason));
 	} else version (Have_vibe_d_http) {
 		import vibe.inet.urltransfer;
 		vibe.inet.urltransfer.download(url, filename);
@@ -309,19 +266,7 @@
 		auto conn = HTTP();
 		setupHTTPClient(conn, timeout);
 		logDebug("Getting %s...", url);
-		static if (__VERSION__ <= 2075)
-		{
-			try
-				return cast(ubyte[])get(url, conn);
-			catch (CurlException e)
-			{
-				if (e.msg.canFind("404"))
-					throw new HTTPStatusException(404, e.msg);
-				throw e;
-			}
-		}
-		else
-			return cast(ubyte[])get(url, conn);
+		return cast(ubyte[])get(url, conn);
 	} else version (Have_vibe_d_http) {
 		import vibe.inet.urltransfer;
 		import vibe.stream.operations;