diff --git a/README.md b/README.md
index 2123e35d..e3685d7b 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# BrowserFS v1.0.0
+# BrowserFS v1.1.0
 > BrowserFS is an in-browser file system that emulates the [Node JS file system API](http://nodejs.org/api/fs.html) and supports storing and retrieving files from various backends. BrowserFS also integrates nicely into the Emscripten file system.
 
 [![Build Status](https://travis-ci.org/jvilk/BrowserFS.svg?branch=master)](https://travis-ci.org/jvilk/BrowserFS)
@@ -19,6 +19,8 @@ BrowserFS is highly extensible, and ships with many filesystem backends:
   * Note: You provide this filesystem with an authenticated [DropboxJS client](https://github.com/dropbox/dropbox-js)
 * `InMemory`: Stores files in-memory. Thus, it is a temporary file store that clears when the user navigates away.
 * `ZipFS`: Read-only zip file-backed FS. Lazily decompresses files as you access them.
+  * Supports DEFLATE out-of-the-box.
+  * Have super old zip files? [The `browserfs-zipfs-extras` package](https://github.com/jvilk/browserfs-zipfs-extras) adds support for EXPLODE, UNREDUCE, and UNSHRINK.
 * `WorkerFS`: Lets you mount the BrowserFS file system configured in the main thread in a WebWorker, or the other way around!
 * `MountableFileSystem`: Lets you mount multiple file systems into a single directory hierarchy, as in *nix-based OSes.
 * `OverlayFS`: Mount a read-only file system as read-write by overlaying a writable file system on top of it. Like Docker's overlayfs, it will only write changed files to the writable file system.
diff --git a/package.json b/package.json
index 8155f6da..c8749a47 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "browserfs",
-  "version": "1.0.0",
+  "version": "1.1.0",
   "description": "A filesystem in your browser!",
   "main": "dist/browserfs.js",
   "typings": "dist/browserfs",
diff --git a/src/backend/ZipFS.ts b/src/backend/ZipFS.ts
index 91879ed1..69f51f51 100644
--- a/src/backend/ZipFS.ts
+++ b/src/backend/ZipFS.ts
@@ -58,7 +58,7 @@ import {FileIndex, DirInode, FileInode, isDirInode, isFileInode} from '../generi
 /**
  * Maps CompressionMethod => function that decompresses.
  */
-const decompressionMethods: {[method: number]: (data: Buffer, compressedSize: number, uncompressedSize: number) => Buffer} = {};
+const decompressionMethods: {[method: number]: (data: Buffer, compressedSize: number, uncompressedSize: number, flags: number) => Buffer} = {};
 
 /**
  * 4.4.2.2: Indicates the compatibiltiy of a file's external attributes.
@@ -236,7 +236,7 @@ export class FileData {
     const compressionMethod: CompressionMethod = this.header.compressionMethod();
     const fcn = decompressionMethods[compressionMethod];
     if (fcn) {
-      return fcn(this.data, this.record.compressedSize(), this.record.uncompressedSize());
+      return fcn(this.data, this.record.compressedSize(), this.record.uncompressedSize(), this.record.flag());
     } else {
       let name: string = CompressionMethod[compressionMethod];
       if (!name) {
@@ -509,7 +509,7 @@ export default class ZipFS extends SynchronousFileSystem implements FileSystem {
 
   public static isAvailable(): boolean { return true; }
 
-  public static RegisterDecompressionMethod(m: CompressionMethod, fcn: (data: Buffer, compressedSize: number, uncompressedSize: number) => Buffer): void {
+  public static RegisterDecompressionMethod(m: CompressionMethod, fcn: (data: Buffer, compressedSize: number, uncompressedSize: number, flags: number) => Buffer): void {
     decompressionMethods[m] = fcn;
   }
 
diff --git a/src/core/browserfs.ts b/src/core/browserfs.ts
index 39da84d6..2b6b0c32 100644
--- a/src/core/browserfs.ts
+++ b/src/core/browserfs.ts
@@ -9,6 +9,7 @@ import {FileSystemConstructor, FileSystem} from './file_system';
 import EmscriptenFS from '../generic/emscripten_fs';
 import Backends from './backends';
 import * as BFSUtils from './util';
+import * as Errors from './api_error';
 
 if ((<any> process)['initializeTTYs']) {
   (<any> process)['initializeTTYs']();
@@ -81,4 +82,4 @@ export function initialize(rootfs: FileSystem) {
   return fs.initialize(rootfs);
 }
 
-export {EmscriptenFS, Backends as FileSystem};
+export {EmscriptenFS, Backends as FileSystem, Errors};
diff --git a/src/rollup.config.js b/src/rollup.config.js
index a6babba9..42831833 100644
--- a/src/rollup.config.js
+++ b/src/rollup.config.js
@@ -25,9 +25,7 @@ export default {
       jsnext: true,
       preferBuiltins: true
     }),
-    sourcemaps({
-      exclude: '**/*'
-    }),
+    sourcemaps(),
     buble()
   ]
 };