Updated README.md

Author: donmendelson

README.md

@@ -14,8 +14,15 @@ Issues may be entered here in GitHub or in a discussion forum on the [FIX Tradin
 
 ## Versions
 
+### Current version: Release Candidate 4
 
-### Current version: Release Candidate 3
+Release Candidate 4 was approved by the Global Technical Committee on Feb. 21, 2019 for 90 day public review.  The key enhancements in Release Candidate 4 were:
+
+* Scenarios were extended to fields and code sets.
+* Components and repeating groups were separated in the XML schema.
+* Identifiers were normalized and simplified.
+
+### Release Candidate 3
 Release Candidate 3 was approved by the Global Technical Committee on March 8, 2018 for 90 day public review. The key enhancements in Release Candidate 3 were:
 
 * The XML schema was simplified to support a single protocol version per file.
@@ -35,7 +42,7 @@ Release Candidate 2 was approved by the Global Technical Committee on May 18, 20
 Version 1.0 RC1 standardized the XML schema for FIX Orchestra and FIX Repository 2016 Edition. Release Candidate 1 was approved by the Global Technical Committee on Dec. 15, 2016 for 90 day public review. 
 
 ## License
-FIX Orchestra specifications are © Copyright 2016-2018 FIX Protocol Ltd. 
+FIX Orchestra specifications are © Copyright 2016-2019 FIX Protocol Ltd. 
 
 <a rel="license" href="http://creativecommons.org/licenses/by-nd/4.0/"><img alt="Creative Commons License" style="border-width:0" src="https://i.creativecommons.org/l/by-nd/4.0/88x31.png" /></a><br /><span xmlns:dct="http://purl.org/dc/terms/" href="http://purl.org/dc/dcmitype/Text" property="dct:title" rel="dct:type">FIX Orchestra Technical Specification</span> by <a xmlns:cc="http://creativecommons.org/ns#" href="http://www.fixtradingcommunity.org/" property="cc:attributionName" rel="cc:attributionURL">FIX Protocol Ltd.</a> is licensed under a <a rel="license" href="http://creativecommons.org/licenses/by-nd/4.0/">Creative Commons Attribution-NoDerivatives 4.0 International License</a>.<br />Based on a work at <a xmlns:dct="http://purl.org/dc/terms/" href="https://github.com/FIXTradingCommunity/fix-orchestra-spec" rel="dct:source">https://github.com/FIXTradingCommunity/fix-orchestra-spec</a>.