From cc81971e9e399d04ea602c67c85435f7f5fa9a7c Mon Sep 17 00:00:00 2001
From: Anatol Belski <ab@php.net>
Date: Fri, 28 Oct 2016 20:49:12 +0200
Subject: [PATCH] extend info to float related constants

---
 UPGRADING | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/UPGRADING b/UPGRADING
index 49428f07e0..ada82c886d 100644
--- a/UPGRADING
+++ b/UPGRADING
@@ -123,10 +123,12 @@ PHP 7.2 UPGRADE NOTES
 ========================================
 
 - Core:
-  . PHP_FLOAT_DIG
-  . PHP_FLOAT_EPSILON
-  . PHP_FLOAT_MIN
-  . PHP_FLOAT_MAX
+  . PHP_FLOAT_DIG     number of decimal digits, that can be rounded into a
+                      float and back without precision loss
+  . PHP_FLOAT_EPSILON smallest representable positive number x, so then
+                      x + 1.0 != 1.0
+  . PHP_FLOAT_MIN     max representable float number
+  . PHP_FLOAT_MAX     min representable float number
 
 - GD:
   . IMG_EFFECT_MULTIPLY
-- 
2.50.1