diff --git a/packages/types-publisher/definition-parser.ts b/packages/types-publisher/definition-parser.ts
index b60405bf..c0ceea83 100644
--- a/packages/types-publisher/definition-parser.ts
+++ b/packages/types-publisher/definition-parser.ts
@@ -46,7 +46,7 @@ export function isFail(t: TypingParseSucceedResult | TypingParseFailResult): t i
 }
 
 export interface TypingsData {
-	type: DefinitionFileKind;
+	type: string;
 
 	moduleDependencies: string[];
 	libraryDependencies: string[];
@@ -80,6 +80,9 @@ export interface TypingsData {
 	libraryMajorVersion: string;
 	// The minor version of the library
 	libraryMinorVersion: string;
+
+	// Files that should be published with this definition
+	files: string[];
 }
 
 function isSupportedFileKind(kind: DefinitionFileKind) {
@@ -334,7 +337,7 @@ export function getTypingInfo(directory: string): TypingParseFailResult | Typing
 	const projectName = regexMatch(/^\/\/ Project: (.+)$/m, '');
 	const packageName = isProperModule ? path.basename(directory) : undefined;
 	const sourceRepoURL = 'https://www.github.com/DefinitelyTyped/DefinitelyTyped';
-	
+
 	return {
 		log,
 		data: {
@@ -350,8 +353,9 @@ export function getTypingInfo(directory: string): TypingParseFailResult | Typing
 			packageName,
 			projectName,
 			sourceRepoURL,
-			type: fileKind,
-			globals: Object.keys(globalSymbols).filter(k => !!(globalSymbols[k] & DeclarationFlags.Value))
+			type: DefinitionFileKind[fileKind],
+			globals: Object.keys(globalSymbols).filter(k => !!(globalSymbols[k] & DeclarationFlags.Value)),
+			files: [declFiles[0]]
 		}
 	}	
 }
diff --git a/packages/types-publisher/definition-publisher.ts b/packages/types-publisher/definition-publisher.ts
index d0f364db..77a61fd3 100644
--- a/packages/types-publisher/definition-publisher.ts
+++ b/packages/types-publisher/definition-publisher.ts
@@ -1,18 +1,80 @@
 import { TypingsData, DefinitionFileKind } from './definition-parser';
+import * as fs from 'fs';
+import * as crypto from 'crypto';
+import * as path from 'path';
 
 export interface PublishSettings {
+	// e.g. 'typings', not '@typings'
 	scopeName: string;
+	// e.g. ./output/
 	outputPath: string;
 }
 
-export function publish() {
+namespace Versions {
+	const versionFilename = 'versions.json';
+
+	interface VersionMap {
+		[typingsPackageName: string]: {
+			lastVersion: number;
+			lastContentHash: string;
+		};
+	}
+
+	export function performUpdate(key: string, content: string, update: (version: number) => void) {
+		let data: VersionMap = fs.existsSync(versionFilename) ? JSON.parse(fs.readFileSync(versionFilename, 'utf-8')) : {};
+
+		const hashValue = computeHash(key);
+		let entry = data[key];
+
+		if (entry === undefined) {
+			data[key] = entry = { lastVersion: 0, lastContentHash: '' };
+		}
+
+		if (entry.lastContentHash !== hashValue) {
+			const vNext = entry.lastVersion + 1;
+			update(vNext);
+
+			data[key] = { lastVersion: vNext, lastContentHash: hashValue };
+			fs.writeFileSync(versionFilename, JSON.stringify(data, undefined, 4));
+
+			return true;
+		}
+
+		return false;
+	}
+
+	export function computeHash(content: string) {
+		const h = crypto.createHash('sha256');
+		h.update(content, 'utf-8');
+		return h.digest('base64');
+	}
+}
+
+export function publish(typing: TypingsData, settings: PublishSettings): boolean {
 	const args: string[] = [
 		'publish',
 		// packagePath,
 		'--access public'
 	];
+
+	const content = fs.readFileSync(typing.definitionFilename, 'utf-8');
+
+	return Versions.performUpdate(typing.folder, content, version => {
+		const packageJson = createPackageJSON(typing, settings, version);
+		const readme = createReadme(typing);
+
+		const outputPath = path.join(settings.outputPath, typing.folder);
+		if (!fs.exists(outputPath)) {
+			fs.mkdirSync(outputPath);
+		}
+
+		fs.writeFileSync(path.join(outputPath, 'package.json'), packageJson, 'utf-8');
+		fs.writeFileSync(path.join(outputPath, 'README.md'), readme, 'utf-8');
+		fs.writeFileSync(path.join(outputPath, path.basename(typing.definitionFilename)), fs.readFileSync(typing.definitionFilename));
+	});
 }
 
+
 function createPackageJSON(typing: TypingsData, settings: PublishSettings, fileVersion: number) {
 	const dependencies: any = {};
 	typing.moduleDependencies.forEach(d => dependencies[d] = '*');