Boost 1.69 or later is required

miguelportilla · miguelportilla · commit 060499e6f0da · 2019-05-23T16:50:14.000-04:00
diff --git a/README.md b/README.md
@@ -57,7 +57,7 @@ database sizes over 3 terabytes.
 
 ## Requirements
 
-* Boost 1.61 or higher
+* Boost 1.69 or higher
 * C++11 or greater
 * SSD drive, or equivalent device with high IOPS
 
