From f483d7d80ec428ef73723aa83375f88a0d6852fc Mon Sep 17 00:00:00 2001 From: Taylor R Campbell Date: Thu, 15 Aug 2019 14:24:35 +0000 Subject: [PATCH] Add release note. --- src/relnotes/amd64 | 8 ++++++++ 1 file changed, 8 insertions(+) create mode 100644 src/relnotes/amd64 diff --git a/src/relnotes/amd64 b/src/relnotes/amd64 new file mode 100644 index 000000000..78110f15e --- /dev/null +++ b/src/relnotes/amd64 @@ -0,0 +1,8 @@ +The AMD x86-64 ABI has been changed. + +- Newer Scheme versions must be cross-compiled from older ones using + `./configure --enable-cross-compiling'. +- Old .com files must be recompiled. +- The changes have performance improvements on many workloads, by + reducing the amount of self-modifying code and by making better use + of the CPU branch predictor. -- 2.25.1