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-rw-r--r--lib/stdlib/doc/src/random.xml5
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/stdlib/doc/src/random.xml b/lib/stdlib/doc/src/random.xml
index 93affc3191..1b8fa44883 100644
--- a/lib/stdlib/doc/src/random.xml
+++ b/lib/stdlib/doc/src/random.xml
@@ -136,6 +136,11 @@
<c>random_seed</c> to remember the current seed.</p>
<p>If a process calls <c>uniform/0</c> or <c>uniform/1</c> without
setting a seed first, <c>seed/0</c> is called automatically.</p>
+ <p>The implementation changed in R15. Upgrading to R15 will break
+ applications that expect a specific output for a given seed. The output
+ is still deterministic number series, but different compared to releases
+ older than R15. The seed <c>{0,0,0}</c> will for example no longer
+ produce a flawed series of only zeros.</p>
</section>
</erlref>