Version 255txr-255

* RELNOTES: Updated.

* configure, txr.1: Bumped version and date.

* share/txr/stdlib/ver.tl: Bumped.

* txr.vim, tl.vim: Regenerated.

1 files changed, 39 insertions, 0 deletions

diff --git a/RELNOTES b/RELNOTES
index 2fbab01d..816bec98 100644
--- a/RELNOTES
+++ b/RELNOTES
@@ -1,3 +1,42 @@
+                                    TXR 255
+                                   2021-03-26
+
+
+  Features
+
+  - TXR has been ported to Arm64 Mac OS Darwin (Apple M1).
+
+  - lib:
+    - argument to cat-str treated via sequence iteration
+      for better efficiency on non-lists.
+    - likewise for the poll-list argument in poll.
+  - compiler:
+    - optimization improvements
+      - The VM's T registers can now be used for function arguments,
+        promoting further optimizations, and eliminating the
+        need to allocate a variable frame for arguments.
+      - several other optimization improvements.
+      - code improvements in compiler.
+  - FFI:
+    - float type used as variadic argument in deffi and deffi-cb
+      now promoted to double, preventing a programmer pitfall.
+  - VM:
+    - execution of VM code is now interruptible by signals,
+      most notably the SIGINT generated by Ctrl-C.
+      - this is done in a way that shows vanishingly low overhead.
+
+  Bugs
+
+  - ffi: fixed missing support for retrieving ushort type from
+    misaligned buffer
+  - tests:
+    - on Mac OS, the socket-basic.tl test passes on the stock OS
+      configuration, not requiring limit on UDP datagram size to
+      be relaxed via sysctl.
+    - make -j retest now works reliably via a recursive invocation.
+
+
+
                                     TXR 254
                                    2021-03-10