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-rw-r--r--README.md4
1 files changed, 3 insertions, 1 deletions
diff --git a/README.md b/README.md
index d33eb87..8e6b835 100644
--- a/README.md
+++ b/README.md
@@ -21,6 +21,8 @@ Our fork offers the following enchancements:
Version 2 of this library should work on **PHP 7** or newer. For PHP 5
support, see [the v1.x branch](https://github.com/paragonie/constant_time_encoding/tree/v1.x).
+If you are adding this as a dependency to a project intended to work on both PHP 5 and PHP 7, please set the required version to `^1|^2` instead of just `^1` or `^2`.
+
## How to Install
```sh
@@ -70,4 +72,4 @@ Example output:
```
1VilPkeVqirlPifk5scbzcTTbMT2clp+Zkyv9VFFasE=
2vmkkpshswvcvzj6e7sonry3zxcng3ge6zzfu7tgjsx7kukfnlaq====
-``` \ No newline at end of file
+```